Chapters

Chapter I
Chapter II
Chapter III
Chapter IV
Chapter V
Epilogue - Six Years Later

Chapter I
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Heat

Chapter I

Luna wished that this had been a night just like any other. If nothing else, she would have had a long sleep, dreaming of things that she couldn't do while she was awake; maybe visit a beautiful beach or perhaps chase her own shadow on the surface of the moon. But alas, those were just the humble wishes of the Princess of the Night.

She had already forgotten how many days straight she had been fighting a losing battle with her bed, and a few minutes of sleep would have been a blessing. She had not much choice but to consume a mysterious, vile-tasting black liquid the ponies called "coffee" to keep herself awake.

But unfortunately, even that did nothing much to improve her overall condition, and neither did cold showers when she woke up.

Luna took another sip of the bitter liquid and put the mug back on the counter. "Children," she muttered to herself. "Princess Luna, do this. Princess Luna, do that. One day, just one day, I would like to go without complaints or wishes. Just one. Maybe I should…"

Her horn flared up, and magic licked her body, and with it, the dark stature of Nightmare Moon appeared. She grinned mischievously as she looked at herself in the nearby mirror. "Too bad that it's not Nightmare Night. I would have really enjoyed this. But alas…" With another flick of her horn, Luna reverted herself and turned back to her mug. Within her contemplation, she felt that something was off.

As the night was coming to its end, it was quite common for Celestia to be already up and rummaging around the kitchen, trying to prepare breakfast and coffee for herself, since she didn't like to wake servants just for that. Instead of those familiar noises, all was silent. Only a distant cough, undoubtedly from one of the guards, disturbed the night.

Luna sighed. I don't have the energy to raise the sun, so I better wake Tia, she thought to herself. And hopefully get some sleep afterwards. She sighed. "However unlikely that might seem…"

With one last swig, she drained the rest of her coffee and cringed. It was just as terrible and bitter as it had been a minute ago, ten minutes ago, yesterday, and the days before that. And yet, it was oddly satisfying.

Heading toward Celestia’s chambers, Luna's ears perked up when she arrived and could hear muffled moans permeating through the thick door.

Confused and curious, Luna timidly pushed the door open. She was not sure what to expect, but according to the sounds she had just heard, her sister was playing with herself. If she made her presence known, Celestia would most likely try to cover the act in embarrassing haste, as she had a couple of times before.

The idea of seeing her sister embarrassed in such a way made Luna smirk as she pushed the door even further. The very moment she sees Celestia with a hoof between her hind legs, she would call out her sister’s name in the Royal Canterlot Voice.

But when Celestia came into view, it wasn't like Luna had imagined it: Celestia's hips were in the air, legs spread wide enough so that Luna got an unobstructed view of her slightly spread lips and the erect clit poking out like a faintly glowing, glistening marble. From afar, it looked like a small sun.

Instead of yelling her sister's name in the Royal Canterlot Voice, Luna stood there silently and curiously watched the show. She couldn't place it, but there was something mesmerizing about the act itself. Whether she was amused by her sister moaning in ecstasy or that she enjoyed watching the parts that were usually hidden from the public, Luna couldn't tell.

A familiar warmth had started to build in herself, something that she had only felt for a couple of ponies that, unfortunately, usually ended up leaving her disappointed. She silently sighed.

During Luna's self-reflection, Celestia came hard, and her scream, which was inappropriate for a princess, was muffled by one of her pillows.

Startled by the scream, Luna briefly looked at her sister's flanks, shook her head, and spun around to face the door. She flicked her horn to open them, and—

"Luna!" Celestia yelped and hastily covered herself with a nearby blanket. "What the hay!"

"I-I didn't mean to! I just wanted to wake you up! You were nowhere to be seen so I…" Luna almost shouted back as her face flared up. "I… just froze… If you had seen me leaving, you would have yelled at me, but since I stayed… I guess nothing; the result was the same…"

Celestia raised her hoof. "I'm sorry that you saw me masturbating, Luna, but I couldn't help myself." She took a deep breath to calm herself down a little bit. "Heat doesn't spare even the oldest of royalty. I know that I need to raise the sun, but it really got the best of me. I needed to—"

“Tia!”

Despite having quite a few lovers in her time, Luna still shied away from any talk about sex. Celestia knew that fully well, and the sight of Luna’s face, now glowing in the shade of a ripe tomato, was amusing her to no end. She decided that it was time for a little revenge for Luna’s intrusion.

"You really should try it sometime, Luna. There's nothing wrong with it… Especially if you're in need of releasing some tension…"

"I'm not tense!" Luna yelled. "And besides, it's not dignified for a princess to—"

"Watch her sister doing it?" Celestia replied with a smirk.

Luna's face grew even redder still. "I didn't—"

"I kid, Luna, I kid. What kind of a sister would I be if I didn't tease you?" Celestia asked playfully as she approached Luna and kissed her on her forehead. "Now that I'm done, I really should attend to my duties. And speaking of which, I'm actually surprised that Twilight isn't already here, knocking on my door and asking why the sun isn't up yet." She smirked. "Maybe she's enjoying some quality time of her own."

Deciding that she teased Luna more than enough for the day, Celestia left the room, leaving Luna alone.

"I'm not tense," Luna whispered to herself for reassurance. She groaned and looked at the messy bed that seemed as if Discord had been unleashed upon the poor piece of furniture.

And yet, it was still carrying a little bit of Celestia's scent. It was mixed with the gentle fragrance of Celestia's bathing salts, but even those were unable to hide it completely.

"Luna?"

Luna flinched. "I'm not tense!" she yelled.

Celestia blinked. "What?"

"N-nothing. I'm just tired, I guess. I'm having trouble with my sleep."

"Still?"

Luna nodded. "I get nervous and can't seem to calm down enough to fall asleep. It happens eventually, but…"

Celestia smiled softly. "Maybe you should cut down on the coffee?"

"Tia, this isn't funny!"

"My apologies, Luna, but if you're in heat as well, I think that your… trouble could be solved easily…" Celestia glanced at Luna's hoof.

Luna blinked and hid her hoof from her sister's eyes. "You mean… My own hoof… Down there…" She cringed. "Absolutely not!"

Celestia sighed. “Fine, if you refuse to do it yourself, then let me do it for you."

"You want to… My… But you're my sister and not my mare! And I—"

"Luna, this has nothing to do with romantic relationships. It's just me being a big sister, helping out. Nothing more." She smirked as Luna's muzzle started to turn into strange hues of red. "I'm surprised that after all of this time, you still don't—"

"Tia…"

"It's just a hoof. It doesn't bite or—"

"Tia!"

Celestia giggled. "I couldn't help myself. You know… I believe that the rumors are true, and you do look quite cute when you're embarrassed."

Even redder still, Luna turned around with a snort.

"I'm sorry, Luna. I went a little bit too far." Celestia sighed. "Look, I just want to help…"

"Thank you, Tia, but I don't need—"

"A helping hoof? Luna, some ponies have noticed that you’ve been… tense. You even yelled at the guard that was just doing his job."

Luna’s ears splayed back against her head. "So you heard…"

"It was hard not to. The poor guy almost burst into tears in front of me… Luna, if you need help, I'll be happy to offer it. If not… I hope that nopony else comes running to me because of it."

Luna groaned. Swallowing her pride, she asked in a low voice, "What… What do you want me to do?"

"Just climb onto the bed and relax," Celestia replied happily.

Luna nodded. She climbed onto her sister's bed and lay on her stomach, her tail up and legs spread, waiting for Celestia to do something.

She didn't need to wait for long before the tip of Celestia’s white hoof lightly pressed against her spine, between her wings, making them spread wide open as a surge shot throughout her entire body.

"Not tense, huh?"

"Mayhaps just a little…"

Celestia giggled, and after a brief pause, her hoof glided across the spread wing and continued down the spine until it reached Luna’s flanks. Afterwards, it curled up and traced the dock to its peak, all the way to the small crevice between the two flanks.

As the hoof passed that, Luna softly moaned and pushed her rear against her sister's hoof.

"You're enjoying this, aren't you?"

"Mmmm."

"Hold on." With a flick of her horn, Celestia opened one of her drawers and pulled out a plastic bottle aptly labeled "Passion Fruit Oil". She applied some of it onto her hoof, as well as a little bit onto Luna's mounds, and gently started rubbing it in.

With small, circular motions, she managed to sneak the tip of her hoof into the damp hole and push against Luna's clit. Luna moaned again and shifted her legs, opening her slit and revealing a glimpse of her glistening interior.

Celestia pushed a little harder and started to rub the small, pink bud that was now protruding from the fleshy hole. She felt Luna's body stiffen, and as she continued, Luna lifted up her rump to present Celestia her delicious fruit.

However, as amused as she was by the whole ordeal, Celestia paid little attention to the scene and increased the tempo.

As Luna's soft moans turned into heavy breathing, she clung onto one of the pillows and bit into another. Whether that was the same one that Celestia screamed into not long ago, she didn't know, or rather at this point, didn't care. The undivided attention that Celestia poured into Luna's climax took its toll as Luna's body stiffened and trembled when the ripples of orgasm shook her entire body.

However, even though Celestia felt Luna's climax, she had no intention to stop. Now that Luna's clit became even slicker, Celestia's hoof started to make even smaller and faster circles on it, adding more and more to the remaining pressure.

And a few seconds later, Luna's body stiffened up again, and she couldn't make herself say more than "T-Tia!" before her body convulsed as the second, more powerful climax washed over her. Her tired and exhausted body collapsed onto the warm bed, coated with the mixture of oil and her own scent. She looked back and smiled as she felt the contraction of her vulva gave a wet wink to Celestia.

"Luna?" Celestia asked softly.

"Mmmmhmmm."

"Feeling better?"

Luna faintly nodded. "Mhm. And tired, too. That was really… something…"

"That was the sole purpose of this, Luna." Celestia ruffled Luna’s dark-blue feathers like she did when they were foals. "Now, do me a favor and get some sleep?"

As Luna nodded again, Celestia lit her horn and closed the heavy curtains, shrouding the bright room into darkness.

Luna didn't need to be told twice. A severe lack of sleep and what Celestia did to her was draining, to put it lightly. Even without Celestia's request, or her closing the curtains, it wouldn't take more than a few additional minutes to fall asleep. At that point, she could hardly register anything anymore, except for when she felt a hoof remove the hair from her muzzle as somepony whispered her goodnight.

* * *

Luna slowly opened her eyes. She could see the faint rays of light still poking through the heavy curtains, allowing her to make out the room’s furniture that didn't belong to her. She took a lungful of scented air, the faint smell of her own musk and passion fruit oil bringing back the memories from this morning. She shivered in delight.

Because of Celestia, her nervousness and tension had dissipated from her, and on top of that, as brief as it was, Celestia's casual "helping out" had felt better than what she had experienced with most of her lovers. And for that reason, she would make sure to return the favor. With interest.

Sighing in contentment, Luna rolled off of the bed. She lit her horn to open the curtains, letting in some light of the fading day.

"Almost evening," she muttered to herself. "I wonder what made Tia let me sleep in for so long." Just as Luna finished the sentence, she mentally reprimanded herself and shook her head. "What indeed…" With that, she spun on her hoof and left towards the dining room.

"Good evening," Celestia chirped on Luna's arrival, taking a sip from a cup of the vile, black liquid. "Feeling better?"

"Much," Luna cheerfully replied. "I really needed that." Without a second thought, she headed to the kitchen counter and asked for a cup of coffee herself.

Celestia silently watched as Luna took a swig and stuck out her tongue.

"Blech. It's still terrible."

Celestia smirked. "If you don't like it, you just don't like it."

Luna watched her sister elicit a subtle sigh, her smile also fading as she took another sip. Worried, she asked, "Tia?"

"What is it, Luna?"

"Are you okay?"

"What do you mean? Why wouldn't I be?"

"You're usually much more cheerful at this time of day…" Luna giggled. "Even when you don't let me sleep in."

"It's nothing, Luna," Celestia replied with a smile. "It's just… It's been a really long day. To be honest, all that I want right now is a long hot bath and some sleep."

"That bad?"

"No, no. Of course not. I'm just exhausted. Nothing else."

"I know the perfect remedy for that," Luna happily replied. "A little massage, and you'll be as good as new."

Celestia blinked.

"It's the least that I can do to repay you."

"Repay me? Repay me for what? Oh, you mean—" Celestia reprimanded herself as Luna nodded shyly. "Luna, don't be silly. That was nothing. I was just being a big sister, helping out. Nothing else."

"I still want to, Tia. If nothing else, it will make me feel better, too. You know full well that I don't like to be in debt."

"Mhm, too well." Celestia looked at her sister. "You really don't have to, Luna."

In reply, Luna stuck out her tongue.

Celestia giggled. "Very well, if you insist. I guess that I should exchange that long bath for a short shower?"

With Luna's nod, Celestia headed to the bathroom. While her sister was absent, Luna grabbed herself some dinner, ogling her mug and its increasingly cold contents whilst eating. All too soon, her coffee was nearly finished, and against her better judgment, she opened her mouth and shoved her tongue into the mug.

As she tried to reach the remnants of the black liquid, a familiar voice behind her cleared her throat. "This is something that you don't see everyday: a princess trying to eat her mug. Although, I think that your approach might be a little… unconventional."

Luna looked up. While she was playing with her coffee, she hasn't realized that Celestia had finished with her shower and entered the dining room. She could see Celestia's fur was still slightly damp and her ethereal mane sloppily braided. Her regalia was also absent, indicating that she was ready to call it for the day.

"What?" Celestia asked. "I did the best that I could in a few minutes. And of course, my mane didn't wanted to cooperate as usual, so I had to do something."

"'T wooks ood," Luna mumbled into the mug. Quickly, she removed her muzzle, and repeated herself. "It looks good."

Celestia smiled. "If my old memory serves me correctly, you offered a massage? Or are you going to finish eating the mug first?"

Luna snickered and nodded. "I think that it would be a little better if we go into my bedroom rather than yours this time."

"How so?"

"I asked to replace sheets, so…"

Celestia smirked. "Very well, your room it is then… Lu?"

"Yes?"

"You… have done this before?"

Luna nodded. "With… favorable results," she answered, and with it, her muzzle slightly reddened.

"Then I'll take your word for it." Celestia lit her horn and transported both of them to Luna's room. She cleared her throat. "Well," she continued in a little more cheerful voice. "How do you want me?"

"W-what?"

"What do you mean 'what'? I meant how do you want me on the bed? On the back or on the stomach?"

"L-stomach." Luna cleared her throat. "Lie on your stomach."

"Luna?"

Luna shook her head. "I just… you asked in the same tone as—And for a moment, I thought—" She sighed. "For a moment, you sounded like my former…"

"I did? Hm. I'm not exactly sure what to think of that, but I guess that I'll have to be more careful the next time around…" Celestia lay on the bed as instructed and clung the nearby pillow. "Ready when you are, Princess Luna."

Luna giggled. She opened her drawer and pulled out a bottle of peach-scented massage oil.

"Do I want to know how old this is?"

"This?" Luna lifted the bottle, and with it, Celestia nodded in acknowledgment. "Oh, only a few weeks. I often rub it into my—"

"Lower parts?"

"Tia…"

Celestia smirked. "Sorry, I couldn't help myself. You are just too easily flustered."

"My hooves," Luna finished, her muzzle slightly red. She put a dab of it onto her hoof and held it out to her sister. "I really like the smell of it. See?"

"Mhm," Celestia muttered as Luna moved to put slight pressure at the back of her neck.

Luna's oily hooves slid down the length of Celestia’s spine and back again, making sure to massage every inch of her sister's sore muscles. As she finished with Celestia's back, she carefully pressed into the snow-white wings, opening them slightly. After a period of receiving no further response from Celestia, Luna released the wing.

"Tia? Are you still awake?"

"Mhm," Celestia whispered back in a groggy voice. "Barely."

Luna giggled. "I'm done with your back. Do you want to turn around for me to do the same for the front?"

Celestia smiled and slowly turned around. "If I fall asleep, I'm blaming you."

"Of course," Luna replied with a smirk. She dipped her hooves into the aromatic oil again and pushed against Celestia's chest. Just like with the back, Luna made sure that she would take good care of her sister's front side.

From the neck and to Celestia's wings, and even further down to her flanks, Luna happily rubbed the aromatic oil into her sister's fur and skin. However, as soon as her hoof passed the snow-white stomach, Celestia softly moaned and opened her hind legs, enough for Luna to catch a glimpse of her sister's private parts, and with it, a small, pink organ protruding through the wrinkled lips.

Luna’s hooves slowed down as the unmistakable scent of Celestia's arousal teased her nostrils. It was the same musky scent that Luna smelled in her sister's room earlier that day: a warm, inviting scent of a mare's arousal.
Luna bit her lower lip, but as she continued with the massage, she found it harder and harder to battle her temptation. She kept telling herself that this is her sister and not one of her lovers, but the memories from the morning reminded her how much she enjoyed their ordeal.

She swallowed hard as her hoof slipped between the white flanks and pressed against her sister's inner thighs. Without saying anything, Celestia opened her hind legs even further, her pink petals on clear display to Luna.

Luna took a moment to compose herself and let her oily hooves continue down, making her sister elicit a stifled moan. She realized what Celestia wanted at that moment, and she was too excited herself to let it pass.

Besides, Celestia made sure Luna was properly satisfied, too, and what better way to repay her sister than a little release of her own.

With a little plan forming in her head, Luna dabbed her hooves with more of her oil. Rhythmically rubbing it into the slit, she spread Celestia's lips, exposing the deep-red and slippery interior of the delicious fruit. With a mischievous smile, Luna leaned forward and extended her tongue. As it passed across the damp slit, Celestia shivered.

Celestia opened her eyes and looked down. "L-Luna?"

"I owe you, remember?"

"You don—" Celestia gasped and bit her lower lip as Luna's tongue dove deeper into the forbidden fruit. "D-don't. Don't s-stop, Lu," she whispered. Her body had gone for far too long without a worthy climax, and she craved the touch of somepony else, and at that very moment, it did not even matter if it came from her own sister. "Ohhhh…"

With each passing moment, Luna shed away her timid nature as her actions became bolder and braver. As Celestia wrapped her hind legs around her, Luna dove even deeper. She engulfed her sister's labia and continued her explorations of the delicious organ. She happily flicked around Celestia's clit, and with each flick, the small, pink organ seemed to become stiffer and firmer. And with it, Celestia's breathing became deeper, and soft moans shortly started to accompany it.

With a mischievous grin, Luna leaned forward, her lips clamping around the fleshy button, and started kneading it between her lips. She suckled on the clit for a moment before releasing it and repeated the gesture.

Celestia's legs gripped tighter as Luna dipped her muscle back inside of her and started to lap away at the delicious juices that formed inside of Celestia. As Luna continued, Celestia could sense the pressure of pleasure reaching its boiling point.

Without warning, Celestia bucked up with a silent scream, and as her body convulsed, a small, thick stream of her juices shot onto Luna's surprised muzzle. However, Luna quickly placed her mouth over the warm hole, as yet another, but weaker, stream ended in her mouth. With a smile, Luna gulped down that as well and gently started to lap the remaining juices out of her sister.

When Celestia's body cooled down, and the post-orgasmic convulsions subsided, Luna moved away from her sister's groin and looked up with a smile.

"Goodness, Luna," Celestia breathed. "W-what the hay happened?"

Luna didn't answer. Instead, she gave a peck on her sister's clit.

Celestia shook her head. "It's unlike anything I've experienced so far… And that squirt… that never happened to me before."

Luna smirked. "Mayhaps you should go out with a mare sometime…"

Celestia stuck out her tongue. "Now, you're just being silly, Lu. You know full well that mares don't interest me."

"I've been absent for a thousand years, Tia. You could’ve change your mind in that time. Besides, you just spent some time with a mare, and I didn't hear you complaining much."

"Luna…"

"What?" Luna asked innocently, but her act received nothing more than an unimpressed glare. "But to be fair, Tia, I never shared my bed with anypony who uh…" Her muzzle flared up. "I-I guess that it was something of a first for the both of us."

Celestia nodded.

Luna rubbed her nose, still coated with her sister's juices. "I guess that I should get myself cleaned up."

"Luna?"

"Hm?"

"How was… it?"

"How was… Oh… A little warm."

Celestia sighed.

"I don't know what else to say, Tia. It uh… tastes more or less the same as the rest of it… Well, almost."

Celestia cringed.

"I like it myself."

"So I noticed. I tried it a couple of times myself, and… yuck."

Luna shrugged. "I guess that it's not for everypony… Speaking of which, I really should take that shower."

Celestia nodded, and with a flash of dark-blue light, she was left alone, still lying on her sister's bed. Curious, she dragged her hoof across her wet slit, brought it back to her muzzle, and cautiously licked it, a decision that she regretted almost immediately.

She sighed, lit her horn, and teleported from Luna's bedroom, leaving nothing but a little puddle of her juices on her sister's sheets.

* * *

With a tap of her hoof, Luna started the shower and let the warm water wash away the traces of their act.

Now that the heat of the moment had calmed down and left her alone with her thoughts, Luna reminisced on what happened between her and Celestia. She still couldn't believe that she let herself give into the scent of her own sister. It was harder to believe that Celestia even encouraged her to continue with her act. For some bizarre reason, she hadn't been distraught by the entire ordeal as much as she should be. It felt like that it was just a tryst with any other mare.

Lost in her thoughts and the arousal accompanying it, Luna instinctively turned around and lifted her tail, allowing the warm stream to massage her intimate parts. But it didn't end there. She lit her horn, using her magic to slightly spread her lips, allowing the droplets to massage her interiors as well. Amidst her enjoyment, she completely missed Celestia entering the bathroom.

"Using your hoof isn't dignified, but this is?" Celestia asked in her casual voice.

Luna jumped in shock and surprise, slipping on the wet tub and leaving her flank facing Celestia. "T-Tia! What the hay are you doing here?!"

Celestia giggled while Luna tried to untangle herself. "The door was unlocked. I thought that you were already done?"

"I wasn't!"

"I can see that now, Luna. And since I'm already here, I also wanted to talk to you before I head to bed."

"Can it not wait until I'm at least done with my shower?"

Celestia took a deep breath. "It could. But since I'm already here… Ummm, Luna?" she asked, her muzzle flaring slightly red. "I just wanted to say that I enjoyed your massage, and… I… Luna?"

"Hm?"

"Do you think that we could do that… again, sometime?"

Chapter II
View Online

Heat

Chapter II

Luna blinked, unsure if she had heard her sister correctly. "W-what? You mean that we—"

"Luna, neither of us has a special somepony, and I thought…” Celestia hesitated. “Maybe we could help each other in times of need, and…"

"No!" Luna barked back. "I mean… as much as we both enjoyed what we did… In the end of ends, we are still sisters, and we shouldn't have done that in the first place. I guess…" She sighed. "I guess that not having somepony for a long time got the best of me. Twice. It may not be the wisest idea to do this again."

Celestia nodded. "Luna?"

"Yes?"

"I didn't mean to imply that we..." Celestia bit her lip. "I just wanted to say that I enjoyed what you… I mean… I just thought… that… Oh dear. I feel so embarrassed now."

For a moment, a dead silence fell between the pair. Luna silently observed as her sister's muzzle turned redder as the seconds passed by. She couldn't help herself but giggle. "You should look at yourself in the mirror, Tia. Your face looks like a ripe tomato."

Celestia laughed wholeheartedly. "I—" She cleared her throat. "I shall leave you alone with the shower now." She turned towards the door. "But you might want to lock the door behind me. I'm not the only pony in the castle."

Luna nodded. After Celestia left the bathroom, Luna did what she was advised. She lit her horn and locked the door, ensuring that nopony could enter the bathroom, not even her sister. She stepped back into the cabin, turned the shower on, and continued what she had started before the awkward interruption.

She sighed deeply and closed her eyes, allowing the warm droplets to caress her body again. She opened up her mouth and let the warm water fill it to the brim just so that she could spit it out. As she repeated that a few more times, the aftertaste of her and her sister's misconduct dissipated from her mouth. But regardless, even the thought of that left her in a strange predicament. She freely admitted to herself and to her sister that she enjoyed their ordeal. Whether that was due to Celestia being a mare, that she hasn't been with anypony for a thousand of years, or the combination of both, she couldn't say.

As she realized where her thoughts had wandered off, she tapped the faucet lightly, allowing the warm water to grow colder. It was usually more than enough to bring her hooves back to Equestria, but this time, it just wasn't enough. She tapped it again and quickly washed her remaining parts. It didn't take her more than a few seconds to open the glass door and jump out of the cabin. "T-that's really c-c-cold!" she muttered to herself.

Shivering slightly, Luna wrapped herself with nearby towel and rubbed herself thoroughly. As she glanced into the mirror, the image within smirked at her. Instead of being its majestic, ethereal self, her mane was in shambles, strands of hair sticking in every possible direction. A quick fix with her towel, spiced up with a little bit of magic, was followed by her brushing her teeth and a thorough cleaning of her regalia. When she was satisfied with the result, she smiled at her own reflection in the dark pieces of metal. She took a deep breath to make herself forget what just happened and trotted towards the kitchen, where she found her sister.

"How was… it?" Celestia asked innocently, pushing a plate of blueberry pancakes towards her sister.

"Cold and wet," Luna replied with a smile. "Mayhaps a tad too cold." With a glance and without a second thought, she grabbed a mug containing cold coffee and made a swift, long gulp. In an instant, she regretted her decision.

"I was just about to throw that away, Lu," Celestia mused.

Luna spat. "Egads! I had thought that hot coffee was terrible, but this…" She gagged. "That's what I get for… your cup?"

Celestia giggled. "You already put away yours, remember?"

"Gah! You should have warned me…"

"I saw no reason for doing so. Besides, I know that you have an undying love for cold coffee. So…"

Luna shook her head. "Of course. And the colder the better. At least these delicious pancakes are here to the rescue."

"Certainly."

The two ponies looked at each other and started to giggle like a pair of foals. As that died down, they chatted about the passing day, as well as Luna's duties for the night. Neither mentioned the adventures in either bedroom or their encounter in the bathroom.

And it was not just that day that conversations of their encounters never seemed to spark to life again.

At least for a few more weeks.

* * *

As dusk fell over Canterlot and its residences, a pair of Royal Guards bowed to Celestia in front of her sister's room.

"At ease, my little ponies," Celestia said softly. "I'm just looking for my sister. It's a little odd that she hasn't joined me in the kitchen for a few days in a row…"

"We… uh…" started the first one.

"We… we haven’t seen her either," finished the second guard.

Celestia blinked. "What? Why wasn't I informed of this?"

"We apologize, Princess Celestia, but we both thought that if she would go somewhere, she would inform you first."

The other guard subtly nodded. "But nothing stands out of the ordinary, ma'am. She raises and lowers the moon every night, and her work still seems to be getting done."

"I see…" Celestia muttered to herself but loud enough to be heard by both guards.

"Princess Celestia? Should we… Do we need to worry? Old tales say that's how Nightmare Moon—"

"Dust Cloud!"

The guard quickly closed his mouth and hung his head in embarrassment. "I apologize, Princess Celestia. I didn't meant to imply…"

"I understand the concern, Dust Cloud, but I reckon that there's no cause for alarm. Luna has done this a few times before as well."

"She… did?"

Celestia nodded. "Long before her banishment. And both times…" She smiled. "She was fine. If what you said is true, she should return shortly. And if you do see her before I do, would you be so kind and send her to me?"

The guards nodded simultaneously.

"Very well. Thank you for the information. At ease."

The two guards bowed to Celestia as she head back to her chambers.

As she closed the massive door behind herself, she shook her head. She knew what the sudden disappearance of her sister meant. The past times Luna did that, her return had been accompanied with a delightful mare. This time, Celestia had been only slightly disappointed that Luna didn't tell her what she was about to do before she took off.

Celestia sighed. She sat down behind her desk and opened a book. Reading, however, proved to be impossible as the words quickly started to blur. With a sigh and a swipe of her hoof, she closed it. In that moment, a tap on the balcony door caught her attention.

She didn't need to guess twice who that may be. Without even putting on her golden slippers, Celestia walked to the door like a Royal Guard, upright and stiff like she just ate a broom. Inches before her destination, she bowed deeply, and inviting Luna in in a bemused tone, "Come on in, Your Highness. Would you like to—"

She looked up, her smile and mocking voice dissipating immediately. "Luna?" Her voice was now coated with genuine concern.

Luna indeed was in desolate state. Her ethereal mane was dimmer, and the bags under her eyes indicated that she had trouble sleeping the past few days. If she had managed to get any sleep at all.

"You just… disappeared for a few days," said Celestia, and she gave her sister a tight embrace. "Where have you been?"

"Here," Luna replied meekly. "But I avoided everypony. Including you."

"But… why? Last time… last few times you took off without a word to anypony, including me, you returned with a lover. I had expected to welcome two ponies, not just one."

Luna glared at Celestia but said nothing. Not that she needed to say anything, anyways. Luna's body language, light blush, and a faint scent of musk told Celestia what Luna couldn't or didn't want to put into words.

Celestia nodded understandably. "Please do come in. It's not as warm outside at night as it used to be. What do you say?"

With a nod, Luna followed Celestia inside. As much as she tried to look past it, Luna's eyes kept coming back to the rhythmic sway of two white flanks. Only when they had stopped did Luna shake her head to clear her thoughts.

"Luna?"

"Sorry."

"I was worried, Lu… You were avoiding me because you were in heat?"

"Still am."

"Luna… you know that you didn't have to…"

"I didn't want to snap at you or at anypony else like the last time…"

Celestia sighed. "It happens, Luna. You need not worry about it."

Luna's muzzle became redder.

"You really have to do something about your body. Look, I know that you think that it's undignified, but it's something that will keep your heat in check even if—"

"Doesn't work."

"Of course it doesn't if you hadn't even tried it yet, Luna." Celestia smiled. "Nothing works unless you—"

"I have!" Luna yelped, but she cut herself off. "T-this morning, too. I promised myself that I wouldn't, but… I got desperate. Unfortunately, that didn't help at all."

"It didn't?"

Luna shook her head.

"Luna…"

Luna shuffled and hung her head. "Yes… Uhhh…"

"So, I guess that you want me to… Luna, you said it yourself, that may not be the wisest course of action."

Luna subtly nodded. "I know, but… I wouldn't have come here if I had any other choice," she almost whispered. "I wouldn't need to hide from everypony either."

After a moment of dead silence, Celestia finally smiled. "Shower."

"W-what?"

"Before I let you on the bed, you need to take a long shower. Very long shower."

"Shower?"

Celestia snickered. "You smell like you just came from running a marathon, Lu. At least two of them."

Luna blushed. "That bad?"

"Worse. Now go."

With a nod, Luna headed for the bathroom and climbed into the cabin. She happily gave into the onslaught of tiny droplets as they soaked her fur. She just wished for a pony that would help her brush the dust out of the even faintest crevices. A nice, young mare with a nimble set of hooves, and—

"Egads!" Luna yelped as the water got colder than she expected, snapping her out of her delightful fantasies. She quickly jumped out of the cabin and reached for the towel, wiping herself off. Like she had seen Rarity do once, she wrapped her mane into a towel and headed out.

Celestia laughed. "I said long, but I never thought that you would take an eternity and a half. Or was it two full?"

Luna blinked. "How long was I…"

"Good twenty minutes, Lu. I thought that you had forgotten about…" Celestia giggled. "At least now you smell like a princess."

"Lavender and oak. I smell like tree sap."

Celestia laughed again. "Jump on the bed."

Luna nodded. As she sat on the bed, Celestia sat behind her. Just like before, she floated the bottle of Passion Fruit oil, splashed it onto her hooves, and rubbed them lightly against Luna's hips. Celestia smiled. "Comfortable?"

Luna nodded.

"Good." Celestia's hooves continued with what she was doing, making Luna squirm.

"Can't help it. It tickles!"

Celestia chuckled and continued to lead her hooves across Luna's stomach and between her thighs. The tip of her hoof slided along the rims of Luna's slippery slit, making Luna moan and her body flinch.

Celestia’s free leg gently wrapped around Luna's stomach while the tip of her other hoof managed to worm itself inside of Luna's slit and started to rub it. With each pass, Celestia felt Luna's body flinch ever so slightly, a reaction that amused Celestia immensely.

And as she continued, Luna's erect clit protruded through her lips like a glistening pink button, waiting for attention. Amused, Celestia blew on it, making Luna squirm even more. As she started to lightly massage Luna's clit, Celestia asked, "Do you want me to continue or—"

In a response, Luna groaned.

"I'll take that as a 'yes'," Celestia mused. "Although, I think that I have something better." She reached underneath one of her pillows, retrieving a short plastic toy. "It helps me keep my heat in check. I'm sure that you'll like it too," she added. "Now, lean back."

Luna did as she was told. She leaned into her sister's warm body and closed her eyes, enjoying the playful interaction as the toy, wrapped in Celestia's magic, danced on her body. Celestia would lead the toy towards the middle of her chest for one moment, and then inch the toy towards her hips and back again in the next.

"Stop teasing," Luna whispered.

Instead of replying, Celestia just shook her head.

"You're evil," Luna murmured.

"Mayhaps just a little bit," Celestia whispered back. She guided the toy between Luna's hind legs, making sure it passes by the slippery lips. In response, Luna flinched. "You're really wet now," she mused.

"Been like that for a whiiii—" Luna gasped as she felt the tip of the toy slip effortlessly inside of her.

"Luna?"

Luna huffed. "I-I didn't expect this…"

"I was hoping for that." With a mischievous smile on her muzzle, Celestia’s horn grew slightly brighter. She flicked a switch on the toy and gently pressed it against her sister's pink button.

Luna shivered. Using a hoof was one thing, but this was something completely different. She felt like her body started to resonate with the toy. The familiar warmth started to creep into her. She wanted to give into the divine ministrations, however, Celestia wasn't done yet.

Just like she had done for herself, Celestia pulled the vibrating toy out and pushed it back over and over again. However, even with Luna now breathing heavily, Celestia pushed even deeper. As she still held Luna against herself, Celestia could feel her sister’s every muscle contracting and releasing.

"T-Tiahhh," Luna breathed and bit her lip in an attempt to delay the inevitable, but to no avail.

Suddenly, Luna shivered in delight as the waves of the climax rippled through her. She felt as if all of her muscles had released their tension at once, leaving her gasping for air on her sister's silk sheets.

Celestia released her grip and let Luna rest on her stomach, who was regaining her composure and catching her breath. Celestia gave Luna a warm smile and ruffled her wings.

Finally, Luna looked up but quickly lowered her head. "S-sorry, Tia."

"Sorry? I'm afraid that I don't understand, Luna…"

"For… asking you to do this again…"

"You're my sister, Luna, and—"

"That's just it, Tia. You're my sister, and—"

"Luna, we talked about this already. Even if it's trouble with the heat, you're always welcome here." Celestia smirked. "And besides, you wouldn't do those faces anywhere else."

"Faces?" Luna looked up.

Celestia was quick to mimic her sister's face just before her climax. She closed her eyes and opened her mouth ever so slightly. "That face."

"Oh." Luna giggled. "Still…"

"Get some rest, Luna. There's still a long night ahead of you, and I need some shut-eye myself." She paused for a brief moment and looked at her sister. "Um, Luna?"

"Hm?"

"You… you never answered my question."

"I wasn't aware that you asked one…"

"It was a question from a while back, Luna. A proposition… For doing this when either of us are in heat. Like I said, sister helping sister, nothing more." Celestia paused for a bit, waiting for Luna's response.

The familiar, but strange, sensation returned to Luna. Instead of answering her sister's question with a firm "no", Luna struggled with herself again. The idea of sharing the sheets with her sister still felt wrong, but not even five minutes ago, she was enjoying herself immensely. Had it been because of the very notion that she slept with her sister, or perhaps it was because Celestia did something that nopony else but her lovers did?

Or perhaps it was nothing like that at all, and Celestia got her off just because she knew what Luna went through. As Celestia would say, it was just sister helping sister. And yet, there was nothing mechanical or detached in Celestia's ministrations; rather, it seemed like Celestia was enjoying it almost as much as Luna herself.

Lost in her thoughts, she felt a slight nudge from Celestia.

"Luna?"

"I, uh… What?" Luna shook her head. "My apologies, Tia. These past few days… took everything out of me. And what just happened was just… Tia?"

"What is it, Luna?"

"I know that I'm asking too much, but I don't think that I'll be able to attend my duties tonight. If you could… I'm barely keeping my eyes open right now…"

"I see," Celestia mused. "I guess that I'll be attending your duties tonight. It has been a long time since I did that."

Luna smiled and pressed her muzzle on her sister's cheek.

* * *

In the wake of the morning, a strong, but pleasant aroma, teased Luna’s nostrils, rousing her awake. She batted her hoof in the vain hope to get the source of the tempting smell closer to her, but failed.

"I don't want you to spill it all over my sheets. Sit down proper, and you can have some."

"Tia?" Luna jumped up. "Oh no! The moon! Stars! I'm—"

"Taken care of. I didn't want to wake you up, so I lowered it for you."

"Oh."

"Here."

Luna groaned. "Coffee. It smells lovely. Too bad that it tastes terrible."

"This one is special. I got it just for you."

Luna took a small sip and smiled. "It's better than usual. What is it?"

"A very special coffee. Its beans had been digested by a cat."

The response took Luna by surprise as she had another sip. In a moment, she spat out everything. "What?!"

"I see that you like it," Celestia mused.

"Blech! No!"

Celestia laughed wholeheartedly. "It's just cocoa, Lu. I added a little bit of coffee to it for aroma. I just couldn't pass up an opportunity like that."

Luna groaned. "Thou art vile."

"Sometimes," Celestia mused. "Usually when my sister falls asleep in my lap and I have to do her chores. Although…" She flicked her horn and picked up a small piece of paper from the platter. "Here, read this."

"Thank you for a wonderful evening, Princess Celestia," Luna read. "Signed, Ruby Shine." She blinked. "Ruby Shine? The talkative pony from the town?"

Celestia nodded.

"You two…"

Celestia nodded again. "I can give you all of the details, if you so desire," she happily added. "He's a little on the rough side, but he can go for a long—"

"Tia!"

Celestia giggled. "I'm sorry, Luna, but I hadn't been with a pony for… Geeze… a few hundred years now. It's really wonderful to spend a night with a polite gentlepony who is… quite well endowed, too."

Blushing furiously, Luna stuck out her tongue.

"Now, I must ask you to leave, Luna."

Luna blinked. "W-why?"

"Because you refused to listen to the details of my adventure, and because this is still my bedroom, little sister." She giggled. "And you're taking almost half of my bed. After a night like this, even a cauldron of coffee would barely have any effect, so…"

"I understand. I know when I'm not wanted anymore," Luna mused. "Tia?"

"Hm?"

"Thank you. For… you know… everything."

"Any time, Lu."

With a smile on her muzzle and a cup of cocoa held by her magic, she spun on her leg and trotted out of her sister's room. Halfway to Celestia's door, Luna stopped and turned back, wanting to remind Celestia she's about to sleep on dirty sheets, a gesture that was proven too late. She couldn't help herself but to smirk at the scenery as Celestia had already splayed herself on the bed, each leg pointing in a different direction.

Luna stood there for a while, watching the majestic pony lie on the bed like a pony that had way too much to drink. She really didn't know whether to laugh or to say nothing at all. Finally, she smirked and silently walked back to the bed.

As entertaining as it was to watch her sister's badly hidden genitals, Luna lit her horn, grabbed the sheet with her magic and pulled lightly. Even as she saw her sister glide to the edge of the bed, she closed her eyes and perked her ears. A brief moment later, a muffled thud echoed around the room.

"Wha—Luna! What the hay!"

Luna gave Celestia a mischievous smile. "Your sheets are dirty. Isn't that the excuse you usually give me if I sleep for too long?"

"Luna…"

"Yes?" Luna asked in a sweet, innocent tone.

Celestia stood up and sighed. "Luna, as much as I love playing your games, now really isn't the time."

"It isn't?" Luna asked in her still-innocent tone. She lit her horn again and floated a fresh sheet from the cupboard. In a moment, the fabric spread and covered the entire bed.

Celestia shook her head. "Sometimes, I really don't know what's running through your head."

Luna chuckled. "Everything. Now climb back onto the bed."

As Celestia did as she was told, Luna gently floated a blanket on top of her sister and tucked her in, just like Celestia had done countless times for her. For a moment, she felt like she was putting a foal to sleep. A few thousand year old foal that was in the end of ends bigger than she was.

The thought alone was more than enough to make her laugh. With a smile on her muzzle, she leaned forward, kissed her sister's forehead and paused. She had given Celestia a goodnight kiss more times than she could remember, but unlike other times, she trembled. Something shifted inside of her. Unfortunately, Celestia noticed it too.

"Luna? You're acting strange… Is there something wrong?"

Instead of answering, Luna shook her head.

"Luna… I know you too well, remember?"

Luna sighed. "I'm worried, Tia. The heat… What if next time—"

Celestia lightly pressed her hoof against Luna's lips, disallowing her to finish the sentence. "Worry not, little sister. For that, I have exactly what you need."

Luna blinked.

"But it will have to wait until later."

"Of course," Luna muttered back. She turned towards the door and grabbed the ball of dirty sheets with her magic.

"Luna?"

Luna stopped. "What?"

"It may be unwise to go through that door. Imagine a pony missing for some time and then emerging from her sister's room…"

Luna subtly nodded, lit her horn, and disappeared in a flash of dark-blue light, leaving the dirty sheet in the room.

Celestia, now alone in her bedroom, giggled. "Silly Luna."

Chapter III
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Heat

Chapter III

Most of the day had already passed before Celestia woke up. She groaned softly, nuzzling one of her pillows and pulling another one to her chest. It took her a long moment to realize that something disturbed the silence of the day - somepony had been persistently knocking on her door, clearly wanting her attention.

"Come in," she muttered in a raspy voice. Upon glancing at the pillow that she was hugging, she shoved it, but it barely moved.

She groaned and looked up to see that a guard pony without his helmet was patiently waiting for permission to speak.

"What is the matter, Dust Fall?"

"It's… It's Princess Luna…"

In a moment, Celestia was up and alert. "Luna? What happened? Where is she?"

"In the kitchen, Princess. But—"

Before the guard finished his sentence, Celestia had already vanished in a flash of golden light, leaving him alone.

When she manifested herself in the kitchen, Celestia called her sister, "Luna! Lu—" Her mouth fell agape.

"I was just about to call you to dinner, Tia. I was making some pancakes, and…"

Celestia looked at the ceiling. "I can see that. Can you explain how… Never mind. I really don't want to know…"

"And done!" Luna chirped. A plate of pancakes was placed in front of Celestia with a smile. "Dig in!"

With a nod, Celestia lifted a fork and took a piece of a very non-pancake like substance from the platter. Hesitant, she stuck the piece into the mouth and swallowed hard.

"And? How is it?"

"Um… it was… uh… Here, you try it." Celestia cut off a slice and offered it to her sister.

As soon as Luna tried, she cringed and made a plethora of grimaces. After a few more seconds, Luna couldn't stop herself from spitting it out.

"Horrible," Luna muttered. "Why hadn't you told me?"

"I just did," Celestia happily replied.

"Vile," Luna muttered back.

Celestia giggled. "Do you want me to make us some pancakes?"

"No. I still want to make them myself. I wanted to make them for your breakfast, and…"

"And see what happened to the royal kitchen."

Luna snorted. "I was hoping you'd help me. It would be nice to make somepony breakfast now and again. And from…" Luna looked around the disaster that even a few hours ago would be called a kitchen. "I would rather refrain from comment."

Celestia nodded. With a flick of her horn, she levitated over a nearby mop, as well as a few more cleaning utilities, and tossed a sponge to Luna. "You take that part, I'll take this one," she pointed in a direction with her muzzle.

Luna nodded.

As the remnants of Luna's unfortunate attempts of cooking quickly started to disappear, Luna couldn't help herself but take a quick glance towards her sister's backside every now and again.

The firm white flanks were a joy to look at, especially with the colorful tail swishing left and right. Even though Luna was well aware those flanks belonged to her sister, she just realized that she had never registered the subtle outlines of her muscles as she moved her hind leg.

"She's still your sister," Luna reprimanded herself in a barely audible tone. "And yet—"

"Lu-na!" Celestia's Royal Canterlot Voice boomed across the kitchen.

Startled by the loud voice, Luna took a few steps back, almost knocking over a full bucket of water along the way.

"Stop staring at my butt, Luna!" Celestia scolded in a lower, but still stern voice. "We really need to clean this mess!"

"I… I didn't…"

"Then whose muzzle was I watching getting redder by the minute? Mine?" Celestia replied in a soft, teasing tone.

"I didn't even realize…"

Celestia giggled. "Focus, Luna. We are almost done with this, anyways."

With a nod, Luna focused on the task at hand. In a few more minutes, the kitchen was sparkling, and there was no trace of Luna's mishap.

Wrapped in Celestia's magic, a tin bowl was placed on a counter, followed shortly by some flour being dumped in it. Looking silently at Luna, she threw a bunch more in it.

As Celestia added more ingredients and mixed them all together, Luna watched curiously and made mental notes along the way.

"And this is how you make pancakes, Luna," Celestia explained as she poured the last batch of the mixture into a hot pan. "Flour, eggs, a little bit of sugar and salt, and some milk to make it all liquid. Everything else comes in later."

"But I thought…" Luna fell silent.

"Watch this," Celestia asked.

Luna looked up as the contents of the pan flew into the air, flipped around only inches below the ceiling, and landed in the middle of the pan with a loud plop.

"How the hay…"

"Practice, Luna. For a thousand years, I had a lot of spare time, and… well…"

"You learned how to flip pancakes…"

"And more. Oh, I almost forgot - can you make me one with sour cream and jam? I promise I shall return in a minute or so."

"Sour… cream…"

"And jam, yes. It's really good."

"I think I'll take your word for it."

As Celestia turned and left her sister alone, Luna reached for the aforementioned condiments and applied them to one of her sister's pancakes.

"What a strange combination," Luna muttered to herself, folding it before proceeding to prepare one for herself. Even as she applied a thick coat of jam to her own, she kept ogling the strange pancake made for her sister.

"You want to try?" Celestia asked calmly. "You're looking at it so intensely that I'm not sure sure if you want to set it on fire or spend a night with it."

"Uh…" Luna replied with a pink tint on her muzzle. "I think I'll pass on both counts if I can."

With a smirk, Celestia floated the pancake to her mouth and took a bite out of it. "Mmmm. Divine. Oh, and before I forget…" She pulled a dull-looking, unlabeled box from underneath her wing and placed it neatly on the table.

"What is this?"

"As promised, it's something that will keep your heat in check."

"My… oh." As hard as Luna tried to hide her embarrassment, it was easy for Celestia to see through her and draw a faint chuckle out of it. "Thank you. I think."

"Worry not, Luna. It's thoroughly tested, and I think that you'll—"

"Tia!" Luna yelped. "What the hay!"

"What? Oh… Did I say something that I shouldn't have?"

"No! This… belonged to you!"

"So?"

Luna snorted. "What do you mean by 'so'? You used this, and—"

"Luna, the last time I used this," Celestia replied calmly, "was long before your return. I don't need it anymore, therefore—"

"You’re giving it to me."

Celestia nodded. "It may need a little dusting, though."

Luna couldn't help herself but giggle.

"So, are you going to try it or not?"

In a split second, Luna's muzzle grew red like a ripe tomato. "W-what? Now? But there are ponies around! I am not going to stuff—"

"I was talking about the pancake, Luna," Celestia replied calmly. "You were ogling it again."

"Pan…" Luna felt her muzzle grow even redder. "You did that on purpose."

"No, of course not. Why would I do that?"

"Tia…"

"You get flustered so easily, Lu."

Luna groaned and nudged Celestia’s pancake. "Can I?"

"Be my guest, Luna."

Without any further hesitation, Luna stuffed a small amount of pancake into her mouth and cringed. After a good twenty seconds of mulling on that little piece, Luna finally swallowed it down with an audible gulp.

"It's terrible," Luna replied.

"I can tell," Celestia mused. "It's an odd taste, but…" She took another bite. "Once, I made a mistake and ate too many of these. It… didn't end well for my stomach."

Luna laughed. Amused by her sister's confession, Luna picked up the small box from the table and tucked it under her wing. "I will be right back," she said happily.

With a quick glance towards her sister's wing, Celestia remarked in a serious tone, "Hopefully before the pancakes get frozen solid."

Luna giggled nervously.

* * *

Luna found herself biting her pillow as she played with her new toy, just like she had been doing for the past few nights. She closed her eyes in expectation, and after a few more pushes, she reached the ecstasy that she was striving for, satisfyingly releasing her tension and lust. Her body shivered violently and then nothing.

For a brief minute, Luna lay motionless, letting her body cool down and her mind restart. While she had enjoyed the orgasmic bliss, the sensations produced by the toy did not come close to her experiences with another pony. But it was more than enough to keep her heat at bay.

And kept at bay it did. She closed her eyes and tried to imagine what would happen if Celestia hadn't given her the old toy. She was sure that she’d be paying many more visits to her sister's chamber, but even though she had enjoyed their encounters more than she was willing to admit to herself, she somewhat wondered how they would play out.

As more days passed by, she often found herself looking for her sister, but more often than not, Celestia was absent. Luna figured that her sister was spending some quality time with her new lover, but as happy as she was for her, she couldn't help herself but feel a small hint of jealousy for the two. She wasn't entirely sure why she felt that way.

Lost in deep thought, Luna got startled by a knock on her chamber door.

"Wh-I-Yes?" she muttered as she realized that she's still in bed, with a rubbery toy still inside of her. Without sparing a thought, she threw a blanket over her private parts.

"Luna, can I come in?"

"I— If it's urgent…"

Celestia pushed the door open. "It's about the gala."

"Gala?" Luna smirked. "But that's weeks away, Tia. What's there to—"

"Weeks?" Celestia tilted her head in surprise. "Luna, it's tomorrow."

"To— Oh dear. I…"

"Forgot? Luna, how could you forget something like that? The castle has been teeming with ponies these past few days. Have you not noticed that?"

Luna shook her head. "I hadn't paid much attention lately."

"You hadn't—" Celestia stopped herself before she could finish the sentence. She subtly took a whiff of the air, immediately recognising the faint musky scent. "Oh. Have I came at the wrong time? Or did you just finish?"

"Tia…"

Celestia mused. "What? I'm surprised that you're still so shy about it, Luna. It's completely natural. It's not like you hadn't caught me masturbating. At least I'm open about it. Why aren't you?"

"I… W-what?"

Celestia started walking slowly towards her sister's bed. "I have to admit… Before you mentioned it, I would have never considered sharing a night with a mare. A lustful, fiery night with a delightful mare…"

"T-Tia? W-what are you…"

But before Luna finished her sentence, Celestia placed her hoof on her mouth. "Shh. We don't want to attract the guard's attention."

There was something in Celestia's voice. She knew full well what was going to happen, and in that moment, she didn't care. It wasn't like they hadn't shared their bed together before, but this was something completely different.

In a feeble attempt to sway her sister from doing what she was about to do, she asked, "T-Tia, do you really want us to do this?"

"Do you want me to say 'no'?" Celestia breathed back and moved her muzzle even closer to her sister.

"N-no."

Celestia's muzzle conjoined with Luna's. A strange warmth arose through every limb and every fiber of her being, a warmth that she didn't want to let go. And yet, as she allowed their kiss to deepen, their tongues touched, and in that very moment, Luna shivered.

The world around her vanished, and she was left alone in her room. It felt as if nothing happened, and a quick scan of the room and a lift of her blanket revealed that it was indeed the case.

She glanced at the rubbery toy that was lying on the dark sheets, just below her waist. "I must have dozed off," she muttered to herself. With a flick of her horn, she lifted the dildo and floated it closer to her head. Odd how things change.

"Luna?" a familiar voice asked quietly with a soft knock. Far from what she heard in her dream. "May I come in?"

In a split second, the toy flew under her covers. "Yes."

Celestia opened the door and quietly closed it behind herself. "Luna, I— oh, I wasn't aware I came at an unfortunate time. Should I return later?"

Luna shook her head. "Is there something wrong? Usually you would tease me to no end for… uh… enjoying myself…"

Celestia shrugged. "I wanted to talk with you before tomorrow…"

"Tomorrow… The Grand Galloping Gala?"

Celesta nodded. "Remember my delight when Twilight and her friends demolished everything?"

"You're implying something like that could be forgotten…"

"If you try really hard…" She paused for a brief moment, waiting for a reply, but Luna said nothing, so she continued, "As much as I would love seeing that again, I would prefer if things were much calmer this year. I…"

"Gave a ticket to Ruby Shine, and I would like not to end the evening with a demolished castle," Luna finished her sister's sentence.

"Am I that predictable?"

"Sometimes," Luna replied with a smirk. "When you do obvious things."

Celestia giggled. "Hopefully there will be a little bit of the castle left after this is all over." She paused for a moment, her tone lowering. "Eh… Luna?"

"Yes?"

"Nothing, never mind. It's not really important, anyways."

"What is it?"

"Forget it, Lu. It's nothing. Besides, I'm certain that you have… hm… More enjoyable things to attend to than listening to your sister, no?" With a tap of her hoof on Luna's blanket, Celestia smiled. "And Luna?"

"Hm?"

"Thank you for understanding." She leaned forward and kissed Luna on her forehead, spun around, and left the room.

Now alone, Luna kicked off her blanket and headed for the bathroom. She tapped the faucet and let the lukewarm water become cold. "Awkward," she muttered to herself. She closed her eyes and let the images from her dreams return to her.

She said yes to her sister, and let Celestia kiss her like a long-time lover. She let herself be pinned down like she wanted all of this to continue, but as they kissed, she was jolted awake. But if she hadn’t, would she allow the dream to continue? Or would she have ended everything after that kiss?

She sighed heavily. There were too many variables to think about, one of them the lingering thought about sharing her bed with her sister. Even though that had already happened a few times as of late, she still pushed those thoughts away as soon as they surfaced.

Absentmindedly, she washed her toy, brushed her teeth, and brushed her hair to be worthy of royalty that she was.

The Grand Galloping Gala was just a moment away, but Luna had no real interest in it. For her, it was just an unnecessary event, mostly for the nobles, and it was a complete opposite to the Nightmare Night celebration in Ponyville. Fortunately for her, it only occurred once per year. She was unsure how she would handle the boredom in any other way, especially since there was also a distinct lack of young, sexy mares that she could spend time with to avert the dreaded dullness of the event.

She groaned at the thought and left the bathroom.

***

Celestia shivered as the first guests started to appear at the door. She nervously looked at Luna, and then at the door, and again back to her sister. "Do I look good? Is my skirt straight? Do you think that I put on too much perfume? Do you think…"

"Tia!" Luna whispered harshly. "You look absolutely gorgeous, but you are acting like a foal. Just relax for a little bit. It's not going to be the end of the world if there's a wrinkle on your dress."

"Wait, wrinkle? Where?"

"Tia…"

Celestia sighed. "I'm sorry. I just want this evening to go perfectly."

Luna couldn't help herself but chuckle.

"W-what?"

"Tell me if this reminds you of something long ago, but it was me who had been acting like you are right now…"

"Oh, ponyfeathers. How could I forget? What was his name, again? It escapes my mind."

"Night Rider."

Celestia giggled. "Fitting name."

"Well, it may be if something had actually happened," Luna said, sticking her tongue out. "Speaking of…" Her voice trailed off as she took a step back. "I believe that your prince had just arrived," she whispered into her ear.

Just at the bottom of the stairs, Celestia saw her stallion. The smart dress and the well-groomed mane could easily blend among the others, but his dark, wine-red coat could get him picked out of the crowd effortlessly. That, and now a barely visible set of three cut rubies as a cutie mark, belonged to the pony named Ruby Shine.

Celestia took a deep breath, looked at Luna and then back to Ruby, and started to walk down the stairs.

"Great," Luna muttered to herself. "That'll help greatly with my boredom." She stopped her train of thought as she was approached by a noble, an older mare with her pose looking like she had ate the entire broom, not just its stick.

"Princess Luna," the mare greeted in a monotone voice, and bowed to Luna.

Saying nothing, Luna bowed back. Even if she'd try to spark a conversation with a pony, that seemed a little impossible. As soon as she was greeted by one pony, another one followed in line in order to greet her.

Even though she was busy greeting ponies, she couldn't help herself but to watch her sister at the bottom of the stairway out of the corner of her eye.

Celestia leaned forward for a kiss, but the stallion jerked back like he was struck with lightning. She tilted her head. "Is there something wrong, Ruby? You look like you had just kissed a hot plate."

"No, no, it is nothing, Cel. There's just… too many ponies in here. Not my forte."

"I know what you mean," Celestia replied with a giggle. "I usually dread these events as well." She leaned forward, retrying to kiss him.

Again, he stepped back. "Maybe later?"

"Of course." As soon as Ruby bowed and distanced himself from her, she muttered to herself, "Strange…"

"Princess Celestia? I hope that this doesn't seem too awkward, but I had wanted to meet you ever since I was a foal," a mare behind her said, making Celestia swiftly turn around.

"Pardon me, Princess, I didn't mean to startle you. I just…" The mare fell silent and bowed deeply.

"No need for that, Miss…"

"Rose Garden.”

"Miss Rose Garden." Celestia tapped her muzzle. "Odd. I cannot seem to recall sending a ticket to a pony with that name."

Rose Garden giggled. "You hadn't. I had to prod my fiance for a ticket. I swear that it would’ve been easier to break into the palace full of guards than that." She blinked as she just realized what she said. "Uh… no offence, Princess."

Celestia giggled. "None taken. Even my sister makes that analogy sometimes. But I am intrigued, who is your fiance? I would like to know and to give tickets away more easily next time… Especially if the ticket goes to such a lovely pony."

The pony blushed faintly at the compliment. "You just talked to him. You two seemed to be on very friendly terms."

Celestia blinked. "Ruby?"

"Shine, yes. We've been engaged for a year, and just last week, we decided to set a date."

"Congratulations," Celestia said in a raspy voice.

"Princess Celestia? Is there something wrong?"

"N-no. Just…" She cleared her throat. "Dry throat. I should get myself a glass of water, or I may end up talking like an old stallion."

Rose Garden giggled. "Very well. I hope that we could have a longer discussion next time."

"Certainly." After a bow from Rose, Celestia spun around and headed up the stairs.

Luna smiled as she saw her sister approach, but her smile faded away when Celestia passed her without sharing anything more than a quick glance. Sensing trouble, Luna apologised to the next pony that was standing in line to greet the princesses, and followed Celestia to her chamber.

Carefully, she pushed open the heavy door, revealing her sister sitting on the bed, sniffling.

"Tia? What's the matter?"

"I need a few minutes, Luna. I'll be back before ponies realize that I'm not there…"

Luna took a few steps forward, and said in a concerned tone, "That is not what I asked…"

"N-Nothing's the matter, Luna."

"You could’ve fooled me."

Celestia sighed. "I guess that I'm just an old fool, missing all the signs."

"What happened?"

"Ruby Shine," Celestia replied with another sigh. "I just talked to his fiance. Charming young mare, younger than he is." She took a deep breath and continued, "But I should’ve seen this coming."

"How?"

Celestia shrugged. "I guess that I had barely registered that I was the main topic of our conversations. Thinking back now, he hardly talked about himself. In these few months, I barely found out his favorite color."

"Tia…"

"I know, I know. I'm just an old pony that got swayed by the charms of a younger stallion."

"It happens, Tia. Do you want me to leave? Would you like to be alone for a while?"

"Yes. No." Celestia paused for a moment and looked at Luna. "I'm just happy that you are here with me now, Lu."

Luna smiled back and sat on the bed beside her sister. "So, you mentioned something about your ex having a mare?" she asked with a mischievous smile on her muzzle. "Is she cute?"

"Luna, no," Celestia said with a stern voice.

"But you need to do something about it, Tia, and if she's about to become single…" Luna wiggled her eyebrows.

"I don't want to do anything about it right now. I don't want to do something irrational. I… we both know well how that turns out."

"You are no fun," Luna groaned.

Celestia smiled bitterly. "I know."

She closed her eyes and leaned on Luna's shoulder, murmuring as her sister's hooves caressed her hips. "Mmm."

She could feel the warmth of Luna's hoof and her heat seeping through her body. The scent of Luna's newly washed hair and body had quickly become overwhelming, and Celestia smirked at Luna's old remark of smelling like tree sap. But this time, she wasn't. A sweet mixture of tropical fruits that she couldn't determine at that very moment permeated her nostrils.

"Luna…"

"Hm?"

"If you continue, there may be a little bit of an accident."

"You need to pee?"

"Other kind of accident, Luna."

Luna blinked. "But I'm just—"

"It seems to be more than enough," Celestia replied with a smile.

"Good." Luna glided the tip of her hoof from her sister's hip past her cutie mark, to her thigh and up again. She felt Celestia's body tremble as she approached her belly, and from there, her hoof continued to between Celestia's legs. Luna was a little surprised when her hoof passed the snow-white groin and found her sister's clit to be fully erect and her slit surprisingly slippery.

"Luna, what are you up to?"

"You are really tense…"

Celestia nodded in response.

"Then close your eyes and enjoy, Tia. You would do this for me too. Or rather, you did so."

Her hoof started to caress Celestia's clit with swift, well-rehearsed movements to quickly achieve her goal. It didn't take long for Celestia's breathing to deepen and her body becoming stiffer, a state Luna knew quite well. She couldn't help herself but nuzzle the exposed snow-white throat.

In that moment, Celestia's body spasmed and shivered as what felt like a jolt of electricity rushed through her, and Luna felt her sister's juices run down her hoof into the bedsheets.

After a moment of silence, Celestia opened her eyes. "Thank you, Luna," she breathed. "You don't know how much I needed this."

"I… Uh…" Luna looked at the damp hoof. "I'll wait for you downstairs. Ponies are surely missing us…"

Before Celestia could ask about Luna's odd tone, Luna had already disappeared in a flash of blue light. "That was odd," she muttered to herself, but after realizing what kind of mess she had created, she quickly forgot about it. Luna was right; ponies were likely looking for her, and without much hesitation, she took off the damp dress and headed for a quick shower.

* * *

Late in the evening, Celestia absentmindedly watched a bunch of older ponies talking to each other or trying to dance to the tune of a really slow song. As much as she would like to catch Ruby Shine, she had a feeling he'd been avoiding her almost the entire time. And yet, as she watched Luna having a deep conversation with Rose Garden, she felt a hoof caress her cutie mark. She quickly turned to face the offender, and aside of her stood her stallion.

"Celestia," he said with an alluring tone.

"Ruby," Celestia answered, turning her head back to her sister.

"I see that your sister found mine."

"You never did tell me you had a sister…"

Ruby shrugged. "I guess that it slipped my mind. No harm, no foul, I guess."

"Mhm."

"So, would my beautiful mare like to have a dance?"

"Maybe later. But for now, I wonder, though, is there anything else that you would like to share?"

"Me? No, not at all."

"I believe your fiance may be of different opinion… the pony talking to my sister is your fiance, isn't it?"

"I… uh. D-did I say she's my sister? It must be a slip of my tongue. I m-meant to say my fiance, and she doesn't mind that I take a mare on a date now and again. Many ponies do it."

"I see. Shall we go ask?"

"What? No! Do you not believe me, Cel?"

Celestia smiled. "Of course I do." She looked around. The darkness had already fallen over the windowsills, and the full moon was rising from the horizon. "Let's take a moment on the balcony, shall we?"

With a nod from Ruby, the pair left the warm room, and shortly after, they were embraced by a cold gust of air.

Feeling calmer, Ruby got closer to Celestia. "Feels like the first time, doesn't it?"

Celestia smirked. "It's a beautiful moon, isn't it?" She paused for a moment before continuing, "A thousand years ago, I was left with no choice but to banish my sister to the moon. It was the worst day of my life."

"The mare on the moon, I know. Every filly knows that story."

"Back then, I promised myself that I will never do that again, but alas, it seems tonight that I'll have to break that promise."

"W-what?"

"I may be naive, dear Ruby Shine, maybe even to a fault."

Ruby Shine blinked. "Is… is this going somewhere?"

"But I will not allow myself to be taken for a fool," Celestia added calmly. "'Oops, I forgot to mention my fiance. I was too busy having sex with a princess!'"

"Uhhh… And what sex it was! I wanted to tell you—"

"That you set a marriage date with Rose a week ago, and you wanted to tell her everything that happened between the two of us." She finally looked at the stallion who was now smaller than a foal. "Do you maybe have somewhere else to be?"

"Cel… I wanted to—"

"Say, 'yes, Princess Celestia'," Celestia said coldly.

"Y-yes, Princess Celestia."

"Then don't let me stop you." Celestia let out a long sigh and gazed at the moon again.

She stood like that for a few minutes before her ears perked up. She didn't need to turn to see who approached her.

"They left?" Celestia asked calmly.

"In a hurry. Well, more he than she. What happened?"

"Oh, you know, the usual… Tell somepony they'll be banished to the moon, and they just run away for no reason whatsoever…"

"You didn't—" Luna giggled. "Does that mean a certain mare will be free now?"

Celestia shrugged. "Maybe. Or maybe not."

"No fun," Luna groaned.

Celestia looked through the window. "You know how I wanted this to be the perfect night?"

"Yes?"

"Now I really want for Twilight and her friends here to… liven up the night."

"Leaving nobles angry again…"

Celestia smirked. "It's been years since that happened… It would be nice to see it again. Unfortunately…"

Luna turned her head. "The ball room seems quite vacant. Maybe you could…"

"After what happened… I'm not too keen for a dance, Luna."

"Not even if I were the one asking?"

"Sorry, Luna."

Luna groaned. "We should be heading back, then. We had been absent for some time now…"

In response, Celestia sighed. "Yes. Even though… I would rather for this evening to come to an end…" She sighed again, turned around, and headed back to the crowd.

* * *

As soon as the last guest had left, Celestia took a deep breath and reflected on the day that had just passed. She sighed as she made yet another mental notch in what seemed to be nothing but a shallow pool of underwhelming relationships. Just like before, she knew that she would only need time to mend her proverbial hole in her heart. The gala went just as expected, too. Just like any other year, nothing really exciting happened. No animal stampede, nopony stepping up to liven up the music, no nothing.

"At least it's finally over," Celestia muttered to herself before she flopped into bed. She closed her eyes and let her head sink into the cold, soft pillow.

But her idyl was interrupted only a few minutes later by a knock on her door.

"Your delivery, Princess Celestia," a raspy voice said from behind the door.

"But I hadn't ordered anything…"

"I know," Luna said in her normal voice. "Can I come in?"

As soon as Luna asked the question, the door clicked open.

"I'm sorry, Luna. I was just about to get some shut-eye…"

"What? But it's not midnight yet!"

"Luna…"

Luna groaned. "Thou art no fun… Here," she said, floating a bottle of rum from underneath her wing. "I swiped this from the kitchen."

"Um, Luna…"

"No 'um's, Tia. You're having some."

"I don't have much say in this, do I?"

Luna happily shook her head and floated a full shot-glass to her sister. "Bottom's up!"

Celestia threw the contents of the glass down her throat and cringed. "This is horrible!"

Luna nodded, filled up the glass, and gulped down the contents herself. "I… agree," she replied in a raspy voice. "It tastes like rum... Do you want another one?"

"No… Well, maybe if you join me…"

Without hesitation, Luna sat beside her sister and poured another glass. "Gladly."

As Celestia gulped down another glass of the liquid, she turned to Luna. "This reminds me of us sneaking into the Everfree Forest in the middle of the night when we were foals."

"And later be caught by our parents."

Another drink.

Celestia giggled. "A few more, and this will actually taste good. Or at least decent." She paused for a second and looked at Luna. "Is it just me or did it get warmer in this room?"

"It's just you, Tia."

"'Tis not," Celestia replied with a giggle. "You're leaning on me…"

"Sorry."

"Don't be sorry, silly." Celestia sighed. "I'm glad to have you here with me. After what happened tonight… I don't think there's anypony else I'd rather be with…"

In response, Luna caressed her sister's thigh, making Celestia moan softly.

"Sorry," Luna apologized in a faint voice. "Too much rum…"

Celestia giggled and the pair downed another round of the liquor. "Lu?"

"Hm?"

"I know that I had never asked before… Honestly, I had never been curious before, but… Relationship with a mare… How is it? I mean, how is it different? I mean—"

Luna giggled. "After all this time, are you mayhaps getting interested in mares?"

"Maree—ybe."

Luna smirked. The sole thought of her sister going out with a mare amused her to no end. Instead of pouring herself more rum into a tiny glass, she took a short swig from the bottle. She coughed as the overwhelming taste was still a little too strong for her, but regardless, she started, "Don't know what to say… It's different, but it's not really. It's like—" She moaned as she felt a hoof pass her stomach and lower to her cutie mark, and continued to circle around there.

As Celestia's hoof slipped between Luna's hind legs, Luna embraced her sister and gave her a kiss. It was far from the friendly kiss of a sister, but one of a lover.

After a couple of long seconds, Luna broke the kiss and looked deeply into the eyes of her sister.

"What's wrong, Lu?"

"I know we… shouldn't be doing this," Luna breathed. Regardless, her lust, fueled by alcohol, got the best of her. She closed her eyes, and pulled her sister towards her. Without any further hesitation, she locked lips with Celestia and let her hoof snake between her legs as well. As she pushed her muzzle even further, both of them lost balance, and found themselves on the floor with Luna on top, pinning Celestia to the ground.

Celestia giggled. "Shall we continue this on the bed?"

Luna nodded and moved herself away just enough for Celestia to have a clear path to the bed. With a smirk on her face, she flared her horn and lifted her sister and laid her on the end of the queen-sized bed.

Celestia's bed was perfect. It was raised just enough that Luna only needed to lean forward just a little bit to reach her sister's juicy spot.

Luna took a step forward and placed her forehooves between her sister's hind ones, spreading them open and tilting them upwards slightly. She leaned in and stuck out her tongue, making it slide between two tiny mounds, and a brief moment later, slipping into the hot, moist core.

In response, Celestia bucked up, but Luna barely even flinched. Instead of startling her, she smiled in delight as her sister's reaction made her job even easier. She closed her eyes and twirled her tongue inside of the hot crevice, and expertly led it along the rims of the juicy petals before it dipped again into the hole and repeated everything.

"Oh, Luna…"

Delighted to be called by name, Luna nipped the little fleshy button that presented itself to her. The gesture was more than enough to make Celestia squirm from excitement, but Luna was just starting.

She gently circled the extruded organ that was there seemingly only for her. A little bit of pressure on it, and it would slip back in between the slippery folds; release it, and it would pop out again almost instantly. Luna knew full well how to play with a mare's most sensitive organ and where to press it to cause a flood of pleasure, but to give a proper climax to her partner, she had to take her time.

At least most of the time.

But for her sister, she had a slightly different plan.

With a smile on her lips, she looked up to see a white body writhing in delight that she, or rather her ministrations, provided. Pleased in her accomplishments, Luna closed her eyes and allowed her lips to engulf the fleshy button. She dragged the entirety of her tongue across it, making Celestia squirm and gasp again.

But instead of continuing slowly, making her sister, like other lovers, beg for release, she rapidly started to flick the tip of her tongue across the well-lubricated surface. As she felt Celestia's body stiffen, she increased her tempo, and in a few moments, Celestia was giving in.

"Lu… Luna… f… nhah…"

With a few more flicks of her clit, Celestia's body convulsed as her sister drove her over the edge. And with that, Luna calmed down as well. Instead of focusing on something specific, she placed a few kisses on Celestia's inner thighs and one on her belly.

Luna finally looked up and smiled as her sister, flush in her face, was still catching her breath.

"Whoa," Celestia said between her breaths.

"I had a feeling that you'd like it. Did you have enough?"

Celestia shook her head. "No. Come closer…"

With a smile, Luna leaned forward and pressed her muzzle on Celestia's, closing her eyes as her heart skipped a beat.

Just a mare, she thought to herself when a pair of white hooves snuck under her wings and pulled her closer. For a brief moment, she felt like she was in heaven, but the voice of her sister snapped her back to earth.

"Turn around," Celestia said softly.

Even without any further hints of what would follow, Luna did what was asked of her. A few seconds later, her butt was hovering above Celestia's face whilst Luna was looking at her sister's glistening crotch.

Luna giggled. "Like what you see?"

"It's too far," Celestia mused.

"How about now?" Luna asked as she squatted down, moving her butt and the accompanying parts much closer to her sister's white muzzle. By doing so, her slit spread open, exposing the lush pink petals and the dark interior to Celestia.

For a brief moment, like a wondrous foal, Celestia stared into her sister's flower, breathing in the intoxicating scent of arousal.

"What abou—" Luna's question turned into a slight whimper of delight as she felt warm lips clamping onto her marehood. She closed her eyes as she let the mare underneath tend to her.

Sister or not, Luna paid no heed to who the pony that was now lovingly nibbling the rims of her vulva. As much as she learned to like her new toy that was gifted to her by her own sister, the sensations that it created paled before what a pony, or more specifically a mare, could provide. The way the tongue would spread her lips, or the way she would play with her clit… The passing thought made her shiver, but it also made Celestia stop briefly and curiously look at her sister.

In response, Luna smiled, lowering herself just a little bit further, and kissed and licked her sister's inner thigh, but stopped as she found the edge of the slippery, slightly-pink lips. She stuck out her tongue and let its tip slide along the damp crevice and back again.

Alcohol and an even stronger scent of Luna's arousal, combined with Luna going back to caressing her marehood, made Celestia close her eyes and bite into the forbidden fruit in front of her again. As she spread Luna's petals, she caught a droplet that escaped it, and without a second thought, she wolfed it down. Eager for more, she pushed her tongue into the warm and slippery slit and twirled it around.

Not to be outdone by Celestia's ministrations, Luna focused on the small fleshy button, expertly twirling and flicking it around like she did before. As she continued, she felt the playful assault on her marehood subside, and her sister's breathing became deeper again.

At least briefly.

Without the feeling of urgency or competition, there was no need for words or gestures; both ponies knew what they wanted.

If one pony had gone too far, they stopped and patiently waited for the other to catch up. They both enjoyed exploring each other's slippery holes, probing their depths and playing with the little pink buttons by the entrances.

As they continued, Celestia suddenly pulled her sister closer and dug her tongue deeper inside of Luna. Realizing Celestia was, just like her, on the verge of cumming, Luna dug into her sister's slit. As the pressure built inside of her, she pressed the tip of her tongue hard against her clit and flicked it around. Celestia flinched, and her lower body stiffened as Luna engulfed the rims of her sister's vulva while she was still busy with the engorged pink button.

Just a few seconds later, Celestia's leg shot into the air. Her body trembled violently, and to Luna's surprise and delight, she felt a thin stream of warm, clear liquid shoot down her throat. A short moment later, the white body convulsed again, but this time, Luna barely managed to catch a few more droplets from the divine fountain.

In that moment, Luna's body gave under her sister's ministrations too. With one more lick of her clit, she came as well. Her wings shot up, and her body shivered as the immense pleasure coursed through her body, seemingly setting every bit of her being on fire. When her body eventually calmed down, she collapsed onto her sister.

Exhausted from their ordeal, Luna dismounted from her position and turned around, facing her sister again and pressing her muzzle to Celestia's. She gently pressed her tongue, still soaked in her sister's juices, against the warm lips, prodding Celestia to open them.

Celestia obliged. Not just that; she pulled her sister closer, and the gesture dissolved into a long, wet kiss.

After what felt like an eternity, Luna finally broke it, and lay on the bed beside her sister, giggling.

"That was… fun," Luna said meekly, trying not to disrupt the silence that fell in that room.

"Immensely so," Celestia cooed back.

Luna smirked. "I must admit, that for a pony that never spent a night with a mare, what you did was great."

"Mhmmmm."

A moment of awkward silence fell between the pair. It was long enough both ponies heard the chime of a clock tower announcing the full hour. Luna looked at her sister in dread.

"Luna? What is the matter?"

"My duties for the night! I forgot!" Luna scrambled back onto her hooves, but unfortunately, her efforts were in vain as she almost immediately flopped onto the bed.

"I hadn't realized I had that much to drink… I only had… uh…"

"Yes, that much," Celestia replied with a giggle. Regardless of not being in much better state than her sister, she lit her horn and lifted Luna back onto her legs. "There."

After a moment of uncertainty, Luna made a step on the soft mattress, followed by another. And another. Unfortunately, with the next step, she found the edge of the bed. Needles to say, a moment later, she landed nose-down, greeting the hard floor.

Luna groaned. "Ow."

Giggling, Celestia lit her horn again and helped her sister up on her legs. When her giggling subsided, she carefully approached her sister.

She looked her deeply in the eyes. "Lu, that may not be the wisest idea…"

There was no response. Luna was still staring into her eyes, just like she was staring at Luna's. The more time passed, the more she was certain the air between them was warming up. Just a little spark, and everything would combust again.

A few long seconds later, Celestia couldn't resist her temptations anymore. She closed her eyes and pressed her muzzle hard against her sister's, but was surprised when Luna backed off almost immediately.

"Luna?"

"Duties. I must leave," Luna said as she turned around and headed towards the door in a not particularly straight line. "Until morning."

"Morning," Celestia replied, still confused about what had just transpired here. Feeling her legs were too weak to carry her back to the bed, she sat down, and eventually lied down as well. She reprimanded herself for forgetting why she was not that keen on consuming that much hard liquor.

This won't be a night she'd enjoy.

Chapter IV
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Heat

Chapter IV

Much to her own irritation, Celestia was right, even though that'd be the understatement of the century. The night was anything but fun for her as she had visited the bathroom more times than she would be willing to admit.

The copious amount of alcohol left a terrible aftertaste in her mouth, her body weak, and her mind fuzzy. She felt like she was hit by the Canterlot Express, and yet, despite of all that, she got herself up on wobbly legs, headed to the nearby window, and lit her horn. Or at least she wanted to do so, but it was to no avail.

She groaned and shook her head. After a brief pause, she closed her eyes and tried again, but just like her previous attempt, things didn’t go according to plan. She groaned again and left for the nearby bathroom for much needed refreshment.

A few splashes of ice-cold water did the trick, as her third attempt to light her horn was a resounding success. After she raised her sun from the dark horizon, she closed her eyes again, and with a sigh, the shine of her magic dimmed down.

With a severe lack of sleep, she wanted to do nothing more than to crawl inside of her bed and sleep for a few days, but unfortunately, royal duties prevented her from doing so. And yet, she couldn't resist the temptation of the warm and welcoming blankets.

She unwillingly purred as her head met the soft white pillow and closed her eyes. "Mmmm. Five more minutes," she muttered to herself.

As time passed, she felt a slight pressure against her mouth, nothing even close to being unpleasant, but still an odd sensation. As she tried to push her hoof against the offender, her hoof was moved away, and the sensation returned. But this time, it wasn't just a gentle brush, but the unmistaken feeling of a warm set of lips pressing against hers.

In response, Celestia opened her eyes, but her pleasant waking up quickly turned to dread. She jumped away like she had just kissed a hot plate.

"L-Luna? What the hay!"

Luna blinked. "What's the matter, Tia? I didn't pinch you by accident, did I?"

"What? N-you kissed me!"

Like a confused puppy, Luna tilted her head. "I've been waking you up like that for months… Why would today be any different?"

"I… we…" Celestia sighed. "I'm sorry, Luna. You just caught me a little off guard, that's all."

"I can tell. You got me worried for a little bit…"

"You know I like it when you are worried about me…"

"Liar," Luna breathed, her muzzle now brushing against her sister's. "You are more worried about me than—" Luna's words got cut off when Celestia pulled her in, pressing their muzzles together into a deep kiss.

"Cheater," Luna gasped when she managed to get some air. A moment later, she nudged Celestia, and again, the couple repeated the kiss.

It was Celestia that groaned now. She wanted to explore the innards of her sister's mouth with her own tongue, but something felt different. Luna’s mouth felt too soft, and when Celestia pushed even slightly, she felt like she was pushing against a soft toy rather than a pony made up of flesh and bones.

She opened her eyes, and to her surprise, there was no Luna. She was pressing her muzzle hard against a pillow. A silky, wet, chewed-up pillow.

Celestia pushed the slobbered pillow away and groaned. She looked around, and to her surprise, the sun had barely moved from its initial position. She reckoned that not more than ten minutes had passed since she had flopped back to the bed and that certainly showed on her headache.

Reluctantly, she slowly got out of the overly warm bed and headed to the kitchen to grab a much needed cup of coffee. Or two. Or ten.

As expected, Luna was still in the kitchen, even though her duties had already ended. It was nothing unusual to meet her there in the early morning for a greeting and a short conversation. However, this time, Celestia really wasn't keen for the conversation that could potentially spark between them.

"Morning, Luna."

"Morning, Tia. The night was absolutely wonderful. We should let everypony know that we had passionate sex and that from now on we're a pair. I always dreamed about having a big wedding and—"

As quick as the thought had crossed her mind, Celestia immediately discarded it for absurdity, but she still stepped forward, trying to prepare for some sort of awkward conversation about the night before. She reluctantly approached the table, glanced at her sister, and plopped her head on the table.

"You look terrible," Luna said with a mixture of sisterly concern and sarcasm in her voice.

"I'll take that as a compliment," Celestia replied with a groan.

Luna giggled and pushed the mug of hot coffee to her sister. "Here."

"Coffee?"

"And… pancakes,” Luna said as she pushed a plate of the still-warm food to Celestia. "You lost your dinner because of me last night, so I thought that I could somehow make it up to you…"

"But pancakes? Luna…"

"They aren't that bad… This time, I tried them myself first."

Celestia ogled the plate of lukewarm pancakes, flicked her horn, and picked one of them off of the platter to take a small, cautious bite. To her slight surprise, it wasn’t as bad as Luna's previous attempt. Quite the opposite — Her first bite was quite enjoyable. She smiled at Luna and devoured the rest.

"This was really good, Lu. Compared to your first try… Your second turned out to be amazing."

"Fifth," Luna muttered to herself.

"Fifth? Does that mean that we need to clean the kitchen again?"

Luna shook her head. "I had already cleaned it myself. Ceiling and towers as well."

"T… towers? How…"

"I'm kidding," Luna mused.

"Oh." Celestia giggled back. "How was your evening duty?"

"Everypony was still cleaning after the Grand Galloping Gala, so… pretty uneventful… Why do you think I was making pancakes in the end?"

"Fair," Celestia replied happily. However, her amusement didn't last long as an awkward silence fell between the two.

"Luna," she finally said. "About—"

"I should be going now, Tia. Have a good day," Luna said before her sister managed to say something about the night before. And with that, Luna stepped forward and kissed her on the forehead. It was an innocent sisterly kiss, a kiss that Celestia had given and received so many times that she never bothered to count, but somehow, this one was making her dizzy. Whether that was the consequence of her hangover, or something else, she didn't know.

"N-night," Celestia barely managed to peep with a big lump stuck in her throat. As she turned towards the departing Luna, she caught a glimpse of her sister’s rear end. She was surprised that she had never noticed her sister's muscular thighs or that Luna’s dock flinched slightly as she left the room.

However, as Luna disappeared from her sister's eyesight, a shiver snapped Celestia from her reverie. She groaned and plopped her head on the table again. The hangover didn't really help with the realization that she had just checked out a mare's rear. Not only that, but the rear, albeit attractive, belonged to her sister.

"Not happening," she said with a barely audible voice. Why am I suddenly interested in a mare's butt? she thought to herself.

Absentmindedly, she floated another pancake and lazily placed it into her mouth and started teasing its folds with her tongue. It felt oddly satisfying and—

"Princess Celestia?"

Startled, Celestia yelped as she grabbed her muzzle.

"Princess Celestia! Are you alright? What happened?"

"I fit my tung," Celestia said and stuck out her tongue.

"My apologies, Princess Celestia. I didn't mean to startle you," the guard said, bowing humbly.

"It's not your fault, Steel Shield. I should be a little more careful when… eating breakfast."

"And sleeping," the guard whispered to himself.

"Trying, but not succeeding," Celestia calmly replied, leaving Steel Shield dumbfounded.

"I… uh… I didn't mean to… imply… that…"

"It was a long night. You wanted something?"

"Oh, um… A pony came to see you. She said she knows you and that she needed to talk to you."

"This early? You said it was a she?"

The guard nodded. "She said her name was Rose Garden…"

"Oh."

"I can send her away, Princess."

Celestia shook her head. "That will not be necessary. I guess that this needed to happen sooner or later." She paused for a moment, and just as Steel Shield opened his mouth to say something, she added, "It's personal."

Slightly disappointed, the guard nodded. "Shall I let her in?"

"Send her up to my study in a few minutes. I need to finish this cup to at least function properly."

Steel Shield smirked. "Very well, Princess Celestia." He bowed to her and left the kitchen.

A few minutes later, Celestia moved to her study, along with a second cup of coffee. She did not have to wait long before Steel Shield entered the room, escorting in a dark-pink unicorn mare, before Celestia nodded at him to leave.

For a long moment, an awkward silence lingered between the ponies, until Celestia finally broke it. "This isn't an official visit, is it?"

"No," Rose Garden replied meekly.

"Ruby?"

The name mentioned made Rose visually cringe, and yet, she nodded.

"I didn't know," Celestia said with a waver in her voice. "If I did, things would be—"

"Different?"

Celestia nodded. "Very much so. I don't have any desire to come between any couple. Before him, I hadn't had any stallion for over a hundred years. Waiting a little longer for somepony else would make no difference."

"H-how did you two meet?"

"We talked. For a few hours. And then—" Celestia's voice trailed off as the mare in front of her started to sob. "I am really sorry it came to this…"

"If I had paid more attention… maybe… Maybe none of this would have happened."

"Miss Garden…"

"I just… after so long… I hadn't even noticed…"

Celestia silently stood up and walked over to wrap her hooves around the sobbing mare in a soothing hug.

Rose returned the gesture, her hooves holding onto Celestia’s sides. "Everything we've built. Gone in a single night… Without warning… just… Gone."

"Again, I'm deeply sorry, Miss Garden. I never meant for this to happen…"

"It's just…" Rose sniffled. "I don't understand… I never even thought of anypony else that way, let alone…" She sniffled again. "M-my apologies, Princess… I didn't wanted to be seen like this…"

Celestia smiled softly and shook her head. “It’s alright.”

"I don't know what he said is true anymore… He said that you forced him to talk to me, even though…"

"No, that part is true," Celestia replied. "But it was more of a… friendly suggestion than anything else…"

"That sounds ominous… Is that why he practically dragged me home?"

Celestia shrugged. "I like to think that it may have helped slightly. Miss Garden…"

"Rose. My name is Rose."

"Miss Garden… Rose… If it's in any consolation… this isn't easy for me either… It just takes time to—"

Rose shook her head. "No. I mean… I think I'm done looking for a stallion. As great as he was in bed, there was always something amiss when I was with Ruby or any other stallion for that matter, something I never felt with a mare… Maybe all of this isn't entirely on his shoulders… I don't know… I'm not making any sense anymore… I think I will leave." She sniffled again, and continued, "I'm not sure if I got what I wanted here, but still… thank you for everything, Princess Celestia."

"What do you mean?"

Rose sighed. "I guess I was searching for some sort of closure… but I am unsure if I got it or not…" She looked up and stared into Celestia's pink eyes, only to hang her head in embarrassment and turned towards the exit.

Celestia said nothing as she absentmindedly looked after the departing mare. However, unlike the reaction to Luna's flank, none of Rose's features triggered anything even close to what she felt with her sister. Not her flanks, not her barrel, not even the slight hint of the dark slit that was hiding behind the dropped tail.

When she couldn't see the mare anymore, she turned her head and took another sip from the mug and cringed. Just like for Luna, cold coffee wasn't her brew of choice either.

Steel Shield walked back inside and scanned the room, visibly relieved to see Celestia sitting behind her desk, reading the morning newspaper.

"Steel Shield, is there something wrong?" Celestia asked.

"No, ma'am. I just thought…" He cleared his throat. "No, ma'am. Just attending to my duties."

Celestia nodded. "Very well," she said, sported a small smile again, dismissed the guard, and with a cup of cold coffee in the grasp of her magic, she went to start her duties.

* * *

Hours passed. A single paper on Celestia’s desk was joined by a bunch of others, along with a few refills of her mug. And yet, as much as she drowned her focus in work, or at least tried hard to do so, the thought of what happened with Luna the night before as well as the conversation with Rose Garden just hours ago still lingered in Celestia's mind.

"That's just silly," she muttered to herself with a smirk as the pile of paper grew another three pages. With a sense of accomplishment and with her mug empty again, she finally got up.

Happy to finish her work and to be on her hooves again, Celestia stretched her legs until she heard a satisfying pop emitting from one of her joints. Now that is done, she thought to herself, I can hunt down any rogue pieces of cake that I missed yesterday.

Her attention, however, was only short lived. Some playful shouting from outside ended her train of thought, and she looked through a window. From the nearby park, she could see some foals playing with their parents, running around screaming and shouting like there's no tomorrow.

With a bittersweet smile, she moved away and tried to continue where she left off.

"Cake!" she hummed to herself as she trotted down to the kitchen, but unfortunately for her, the fridge had already been raided, and she groaned in disappointment. She didn't need to guess twice who the culprit was.

She sighed, remembering the brief encounter with her sister, and she wasn't too pleased with how it had turned out. It was like Luna was avoiding to even mention their nightly encounter, and from what it seemed, the relationship with her sister had went south.

After a moment of thought, she closed the fridge. Right now, there were more pressing manners than a missing stupid piece of cake. On the flip side, it was fair… Even though she was fairly muscular, Luna teased her about eating too many sweets. She smirked at that thought and headed upstairs.

To her surprise, a familiar, but faint sound was coming from Luna's bedroom, and she didn't need to guess twice to what it was. She paid no heed to the absence of any guards, since they hardly ever guarded Luna's chambers during the day. Celestia giggled. She was sure that if any of the guards were present, they would be glued to their posts.

Still smirking, Celestia approached the door and quietly opened it even further and took a peek inside. The faint, warm scent of sex permeated her nostrils, and another step forward revealed Luna lying on the bed, and her rubbery toy, wrapped in her magic, was thrusting in and out of her rapidly.

When Luna's body flinched, Celestia knew that her sister was nearing her climax, and yet, instead of leaving, she stood silently and watched as Luna continued, her breathing becoming increasingly heavier while her control of herself and the toy dwindled. A good moment later, Luna dug her head into the nearby pillow, followed by a muffled scream. Spent but satisfied, Luna collapsed onto her bed, trying to catch her breath.

Panting, she opened her eyes, but to her shock, she saw Celestia looking at her. In a split second, she pulled the blanket over her, and with it, sent the dildo flying across the room. "Celestia!" she barked.

Celestia shuddered. Luna only ever called her that when she was furious. "Your door was—"

"Out!"

"Hey, you did the same to—"

"I said out!"

"But you—" Before Celestia finished that sentence, Luna already lit her horn and teleported her sister out. Lucky for her, even despite Luna's fury, Celestia wasn't teleported any further than right outside the room, the doors slamming shut in her face.

Celestia groaned. She felt that it was a little bit unfair for her to get kicked out of Luna's room, especially when Luna did the same thing more than once to her. And yet, she slowly walked back to her sister's room and knocked on the door.

"What?" Luna barked.

"I… uh… Can I come in? I want… I wanted to talk…"

A second later, a faint click emitted from the door, and with it, they opened slightly, enough for Celestia to see that as an invitation.

"I'm listening."

Celestia sighed. "I wanted to apologise for what happened."

"Keep going…"

"For everything, Luna."

Luna blinked.

Celestia sighed again. "When you asked me for help with your heat, I shouldn't have agreed. Instead, I should’ve just given you one of my toys and be done with it. This may have gotten slightly out of our hooves…"

"Huh? Don't be silly… What you did, I'll be forever grateful for. I don't want to go through the agony of heat without your little helper anymore. Besides, I think I wasn't the only one getting something out of that, too."

"I guess… Hum, Luna?"

"Yes?"

"Maybe you had already seen them, but lately I've been having really strange dreams involving—" Celestia abruptly stopped herself.

Luna shook her head. “You know that I promised not to look into your dreams, that is, unless the need calls for it. Is there something wrong?”

"It-it's nothing. Forget I mentioned them. They were really silly… Luna, mind if I ask you something?"

"Hm?"

"For a change, do you want to go to the spa for a little bit of time off? There's one in Ponyville that Twilight recommends, and after these past few days… I think that we both desperately need the break. I know that it will help keep my mind off of things."

"Like yesterday?"

Celestia nodded as she couldn't form a verbal reply. Even she wasn't entirely sure how to interpret everything that happened that time. At least she'll have a plethora of time to reflect on everything, and it will give the time for Luna to do the same.

"Then I’ll be happy to go."

Celestia smiled. “I’m looking forward to it.”

Chapter V
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Heat

Chapter V

Celestia had expected to be relaxed in the spa, but this was even beyond her expectations. She could barely keep her eyes open from the moment the royal sisters plopped themselves on the wooden bench in the hot and humid steam room. That, and the mixture of Luna's scent, sweat, and that she was gazing at the barely obstructed mare bits under Luna's towel for the past few minutes also took a toll on Celestia.

"Tia? You're awfully quiet," Luna murmured. It was enough to make Celestia shift her gaze away from Luna's towel.

"Hm? Y-yes. I'm on the verge of falling asleep…"

"You too? I guess that this place tends to do that…" Luna shifted a little bit, enough for her towel to slip higher, uncovering even more of her flank to Celestia.

Celestia smiled, raised her foreleg, and prodded her sister on her back, just where the wings met. It caused Luna's free wing to shoot up, making Celestia giggle like a filly.

"H-hey!"

"What?" Celestia asked innocently.

"Stop that," Luna said unconvincingly and folded back her wing.

Celestia waited for a moment before repeating herself. Much to her amusement, Luna attempted to shove away the offending white hoof, but Celestia kept poking.

Luna groaned. "Tia…"

"Is there something the matter, dear sister?"

"Tia," Luna repeated herself.

"What?" Celestia asked innocently. "I'm not doing anything…"

"Liar," Luna said flatly, which caused Celestia to burst into laughter.

"I had to," Celestia said as she tried to stifle her laughter. "I hadn't done that since you came back… Hm. I have an idea. Lie on your stomach," she said, looking at Luna.

"What are you planning?"

"You'll see. Now lie down…"

Luna nodded, turned around, and seconds later, she felt a hoof caressing her wing.

"I haven't done this for so long," Celestia said softly as the tip of her hooves pressed against the small space between Luna's wings.

"Mmm," Luna murmured. "A little lower…"

Celestia obliged, moving her hoof a little lower and then back between Luna's wings and down again.

Luna closed her eyes. "That's the spot," she muttered.

Celestia continued with her massage, her hoof kneading the area around Luna's wings and spine. She paused shortly when Luna said nothing, but continued with a smile when she heard Luna emitting a soft snore.

After a few minutes of massaging, Luna's snores stopped as she groaned.

"I see that you're still alive," Celestia mused. "You went silent all of the sudden. And snored shortly after. Now that I think of—"

"Tia…"

"What? Teasing little sisters is obligatory… Now that I think of it, I should make it a law, or something along that direction. What do you think?"

"Tia…"

"I'm kidding, Luna, I'm kidding! Sheesh. Sometimes you're so grumpy when you had just woken up…"

Luna blinked. "I'm… what?"

"I said you're… um… not even listening?"

"I am, and I'm grumpy," Luna groaned. "But there's something else on my mind…"

"Something important, I assume, since this is our time to kick back a little bit. Twilight and her friends will take care of the castle duties while we're gone. Is that what's troubling you? You're not confident that she'll keep the castle in one piece for these few hours?"

"W-what? No, Tia, don't be silly. Even though trouble seems to find her now and again… But that's not it… It's just… I'm worried…"

Celestia blinked. "Worried? About what?"

"About what you're going to say…"

"What do you mean?"

"You know well what I mean… Every time you start teasing me, there's something heavy on your mind…"

"Don't be silly, Lu. I—"

"When I returned, you started to tease me, just because you weren't certain Nightmare Moon had been banished proper," Luna said flatly. "Or at the royal wedding, when you shunned Twilight, you wanted affirmation that what you did was right. And before I became Nightmare Moon, you'd—"

"I get it, I get it." Celestia sighed. "You're right. I want to talk to you, but I can never figure out how to say it…"

Luna giggled. "Of the two of us, you were never the pony that had nothing to say… So, um… Just say it?"

"Okay, um… I… " Celestia took a deep breath to muster up her courage. "I love… you," she finally blurted.

"I love you too, Tia. We're sisters after all, and it would be odd if we didn't—"

"N… not as a sister," Celestia replied in a low voice, her face now deeply red.

Luna blinked. "W-what? I don't… me? How? Why?"

Celestia sat down. "I don't know… Even before what happened at the Grand Galloping Gala, I enjoyed helping you out with your heat more than I should…"

"And then the Grand Galloping Gala happened."

"And then the Grand Galloping Gala happened,” Celestia said with a nod. “And then there was rum… and you. It's the first time I slept with a mare. And I enjoyed every moment of it. At least now, I know how it feels. And then I had this dream…"

"The dream that you mentioned before?"

Celestia nodded. "It was about you and me, and you… You came into my room and started kissing me… It seemed like… It seemed like we'd been together for a long time. You became worried when I denied you a good morning kiss."

Luna smirked.

"What's so funny?"

"You, silly. You should know better than most ponies that dreams often don't mean much. At most, I can garner that you are growing an appreciation for mares. Having dreams like that is far more common than you'd expect. I'm kind of amused that you hadn't realized that in my absence…"

Celestia bit her lip. "I know, Luna," she said, a hint of uncertainty in her voice. "But that's not it. As much as this sounds like a cliche, it really felt much more than a simple dream… I gave in. It was… arousing, and then I woke up while trying to make out with a pillow. It really didn't work that well, but as soon as I thought about sharing a kiss with you… it was enough to—"

"Tia," Luna said in a soft, understanding tone. "There are plenty of ponies out there… I don't think that you'll have trouble charming anypony, whether being mare or not."

"But that isn't it either…"

"Hm? Then what is?"

"I'm… I'm not really interested in other mares… These past few weeks, I was trying to see if any other mare would catch my interest. It turned out that it was just as exciting as staring into a brick wall. But whenever you are near me…" Celestia sighed. "I'm sorry, Luna. None of this came out like I had wanted… Just… Can you forget that I said anything? I don't want to make things between us too awkward…"

Luna silently stood up and nervously sat a few feet from her sister. She took a long moment before she exhaled and started, "You know, when we were fillies, I had a crush on you for the longest time as well."

"What?" Celesta blurted out, visually shocked. "You never told me about that…"

"Of course I didn't," Luna replied sternly. "I can't imagine how strange it would be to say anything like that. And yet, I still tried to get you to notice regardless. Back then, you paid little heed to my… attempts, so I had no choice but to give up… Eventually.

"It still took me quite some time to realize that I'm not interested in stallions even the slightest." She snickered. "I guess that I'm not the brightest pony as far as that is concerned after all."

"Me," Celestia blurted. "I don't understand… why me? There were plenty of ponies in the classroom, as well as everywhere else…"

"You are a princess, and in the stories, ponies always get their princesses."

Celestia blinked. "What?"

"Kidding, Tia. We were foals. Foals do stupid things sometimes… Back then, I thought that everypony had a crush on their siblings. Apparently, that wasn't really the case…"

"You don't say," Celestia mused.

"Shush," Luna replied in a fake stern voice. "Though, I thought those feelings were long forgotten… But… I guess that they were just hiding… Tia, when I asked for your help for the first time… The thought of somepony else doing what you did never even crossed my mind."

Now it was Celestia's turn to fall silent.

"And then I had to ask again… And at the Gala…"

"We both had a bit too much to drink back then, Lu."

Luna shook her head. "No."

"No?"

"No. It was… You wanted it. Or rather needed it because of what happened. And then things just spiraled out of control. I guess that I needed it too…"

"But afterwards you just… left, Luna. I was worried that I did something irreparable to our relationship."

Luna shook her head. "I just… I just needed some time for myself…"

"Luna?"

"Hm?"

"What happens now?"

Luna hesitantly stood up.

Celestia's heart started racing as she glanced at the body of her sister. Her gaze moved up the dark-blue legs, to the sweaty chest, and when it moved even higher, she couldn't help herself but elicit a small smile when their eyes met. A distinct warmth soared through her body, making her muzzle tint slightly red, and the rest of her body reacted with it.

She closed her eyes and hung her head. As much as she wanted to give in to the warm feelings that were awoken by Luna's presence, Celestia expected Luna to either kiss her, or just shrug everything off and pretend like the conversation had never happened.

And yet, Luna leaned down and cautiously pressed her muzzle against Celestia's. As their lips touched, the mild taste of the fruity lip balm caught Luna by a surprise.

Celestia opened her eyes. "Luna?"

"I was curious… Without alcohol…"

"You were…" Celestia asked curiously. "And how was it?"

"Strawberry flavored."

Celestia smirked, her eyes looking into her sister's turquoise counterparts. With Luna gazing back, an awkward moment of silence fell between them. However, they didn’t stay silent for long, as Celestia slowly leaned forward and pressed her muzzle to her sister's again.

Instead of backing off, Luna closed her eyes and indulged her sister in the kiss. The faint strawberry flavor only added to her enjoyment of the situation. She could feel her heart struggling to stay in her chest. It was nothing like she had experienced before. With her lips still firmly joined to her sister's, she felt a hoof pressed against her chest. Only then did she realize that her heart wasn't the only one racing.

"Tia," she breathed. "What are we even doing?"

Celestia didn't reply. Instead, she playfully bit Luna's lower lip.

That was enough for Luna to quench the voice inside of her, reminding her that she had just made out with her sister. And she didn't want to stop there, either. Her hooves braced Celestia's hip, and with a gentle push, Celestia folded herself under Luna.

With a small smile on her muzzle, Celestia moved her hooves down to Luna's cutie mark and back to her wings as their kiss grew deeper. Luna's tongue slipped inside of her sister's warm mouth, and was welcomed by Celestia's slippery muscle. Celestia shivered and moaned slightly as Luna's leg accidentally brushed against her sister's nethers.

Luna gently broke the kiss and tilted her head like a confused puppy. "I just touched you, Tia. Are you that excited?"

Celestia nodded subtly. "How could I not be with the prettiest princess just inches away from me?"

"I'm not—"

"Oh, shush. Neither Twilight nor Cady have anything on you."

Luna's cheeks flared red. "You're flattering me, Tia."

"I hope so, Lu."

Luna smirked and leaned forward, gently biting Celestia's lower lip, and let it turn into a passionate kiss, her tongue chasing her sister's again. Luna felt her heart race again, the scent of her sister's musk permeating her nostrils and making her feverish.

Luna broke away from Celestia’s muzzle and planted a kiss on her neck. Moving down the gorgeous snow-white body, Luna planted another kiss on the base of a foreleg, one on her hoof, and then on the joint just a few inches lower.

Celestia watched as her sister's head went even lower, nuzzling her body as she saw fit. She was no stranger to sex — hay, she did it more than she could even count, but this was something different. She could easily come by watching Luna's muzzle approaching her nethers and nudging her inner thighs.

However, Luna had no plans to make it so easy for Celestia.

As she approached the lower part of the white stomach, Luna changed her direction, and instead of reaching for her sister's pink clit that was now protruding through the alarmingly slick crevice, she placed one of her kisses on the snow-white thigh and, with the tip of her tongue, traced to the end of the leg, kissed her hoof, and then started to trace it up again.

"L-Lu. S-stop teasing and fuck me already!"

Luna didn't reply. Instead of indulging her sister's wishes, she placed another kiss on the exposed white stomach and nipped one of the erect teats. She smirked as Celestia flinched, but continued with twirling her tongue around the nipple, and when Celestia moaned again, Luna fully engulfed the teat.

"L-Luna," Celestia feverishly breathed as the warmth she felt before turned into a wildfire. She could barely watch as her sister played with her teats, first with one, then the other, and then proceeded to attend them interchangeably.

The world dissolved quickly around Celestia where she could only see a dark-blue head rhythmically bob up and down as she suckled on her teat, along with the occasional glimpse of turquoise eyes whenever Luna looked up. As hard as she tried not to come right there and then, Celestia moaned again, and she felt her body giving up under the unexpectedly arousing stimuli. Her muscles contracted, and a moment later, her body exploded, releasing all of the pressure accumulated not just during the day, but also since the gala, or rather, their last sexual encounter. With an orgasm soaring throughout her body, she bucked up, and a thin stream of clear liquid shot out of her vagina and hit one of her sister’s hind legs, catching Luna off guard.

"Egads!" Luna whined and stepped back, even though she didn't need to. The second spurt didn't reach as close as the first one, but the clear liquid still landed impressively far. Luna giggled as the third and fourth shots more or less only trickled out of her sister.

Celestia laid on her back panting, her petals wet and opened wide for her sister to admire at her leisure.

"That was fast…" Luna asked curiously. "I haven't even gotten to your… em…"

"Clitoris, Luna. It doesn't make you any less of a princess if you say it out loud, Lu."

Luna nodded, blushing faintly. It was not nearly as intense as the time she caught her sister in her bed playing with herself. "You… really didn't last for long this time either."

Still panting, Celestia shook her head. "I hardly ever finished when I was with a stallion, Lu, and now look what's happening. And it's all because of you."

"I'm just a mare, Tia. If you'd—" Luna couldn't finish her sentence as her ears perked up, and she looked towards one of the walls.

"Luna?" Celestia asked, curious about what was happening.

"Ssh," Luna said in a stern voice. "I think I heard something…"

"Something?"

"It sounded like a scream! Somepony may be in trouble!"

"Scream? But—" Before Celestia finished that sentence, Luna had already disappeared in a cloud of light-blue magic, leaving her sister to catch her breath. It only took a few more seconds before Celestia came around, and she disappeared in a cloud of her own magic, following Luna down the hallway.

Celestia kept quiet, making sure that she made no noise while she went looking for her sister. It didn't take long before she spotted a familiar tail, sticking out of the corner that led to one of the massaging rooms. Since the tail, aside of it flowing in the ethereal wind, wasn't moving, she was concerned. With another flick of her horn, she teleported to the other side of the corner in an attempt to see what's happening.

She saw that Luna wasn't stressed or show any signs of peril; quite the opposite was true — she seemed calm, yet very focused on what was happening through the slightly opened door. Celestia took a few more steps forward to join her sister to find out what the fuss is about.

Instead of announcing herself, even as quiet as she possibly could, she gently nudged her sister's ear, something that she did back when they were foals.

However, Luna didn't jump due to the gesture; it was as if she had expected it to happen. Instead, she calmly looked at Celestia.

"So? Where's the fire?" Celestia asked almost inaudibly.

Luna didn't answer. Instead she stepped aside and let Celestia look through the slightly opened door. Inside, on one of the massaging tables, Aloe, one of the spa owners, was lying on it, biting her hoof in an attempt to not make a noise, whilst her sister was attending her nethers, one lick at a time. It wouldn't take many guesses about what were they doing, especially since Lotus briefly pulled her head from between her sister's hind legs, leaned forward, and deeply kissed her.

Celestia looked at the blushing Luna. "That explains the scream," she whispered. "But we should leave here before they notice us. Should we hit the shower? I think that we both desperately need it…"

Luna nodded. She silently spun around, but she caught a glimpse of the twins still engaging in each other, with Aloe now on the bottom with Lotus’s hoof rubbing against her marehood. While walking away, the princesses heard a sharp gasp from the room, which was quickly quenched by her sister's mouth.

Still walking silently, the royal pair finally arrived at the showers. Luna sighed.

"At work!" she finally blurted.

Celestia smirked. "Maybe they had nothing else to do? Given that we're the only other ponies here…"

"Still… And on top of it—"

"They are sisters?"

"Twins!" The moment the words left Luna's mouth, she covered it with her hoof as she realized what she had just said.

"I'm sorry," she muttered through the hoof. "After what happened between us… I shouldn't be saying that."

Celestia nodded. "These things just—"

"Happen, I know. Still… seeing sisters doing it in front of my nose rouses a strange sensation…"

"You enjoyed it?" Celestia asked curiously.

Luna opened her mouth and shut it quickly. She was lost for words, but her muzzle, glowing red, spoke volumes. Celestia couldn't help herself but giggle.

"What? I like mares!" Luna muttered. "I had a fair share of seeing mares doing it in magazines."

Even though her question wasn't answered directly, Celestia elicited a small smile, took a few steps back, and opened the faucet with a flick of her magic. She closed her eyes, and an onslaught of warm droplets rapidly spread across her body, leaving no part of her back dry. She grunted happily as the warm water washed away the sweat from her body.

Luna felt something was wrong. Celestia hardly ever backed off from a conversation, unless the subject at hoof was touchy or—

You enjoyed it? Her sister's question echoed in Luna's head. A simple, straightforward question that she avoided answering, and she wasn't certain why. Yes or no. A plain, single-worded reply that she wasn't entirely certain which one to pick. I like mares, she repeated to herself, an answer even more obvious and generic than replying with 'water is wet'.

Did she enjoy watching the spa twins eating each other out? Since she only had eyes for mares, the answer was an obvious "yes", but as simple as that answer would be, it didn't sit right with her.

"No," she finally said it out loud.

"Hm? No? What 'no'?" Celestia asked in an almost dreamy voice.

"I meant 'no, I didn't enjoy it'."

"Because they are sisters?"

Luna shook her head. "I thought of that, but…"

"But?"

"I didn't enjoy it because…" Luna fell silent as she stared deeply into the warm pink eyes of her sister.

"Because?"

"Because… I… I think I kind of envied them…"

"Envy?"

Luna nodded. "Even with the little we had seen, I felt something between them… They have each other, and I…" Her voice trailed off, and she hung her head.

A few seconds later, Luna felt a hoof caressing her cheek, and she looked up. Her sister's muzzle was just inches away from hers, smiling. Luna couldn't help herself but to lean a little further and press her mouth against Celestia’s. The moment that their lips touched, she felt a spark of electricity jumping between them. It wasn't a spark that she occasionally felt while she was shuffling on the wool rug in her room, but one that jump-started her heart. Just like before, she felt her heart race in her chest, but harder. The realization that she was making out with her sister only added to the excitement.

As the kiss continued, Luna caressed Celestia's neck with her free hoof. However, Celestia took a step back, gazed into her sister's turquoise eyes, and smiled. "My turn now," she said softly.

Luna nodded. She laid down, her eyes locked on her sister's every move as Celestia's head neared her thighs. Mere seconds later, her wings shot up as the snow-white muzzle nipped one of her inner thighs.

Smirking at her sister's reaction, Celestia continued. She had no intention to dive into the alluring mound just yet, but its avoidance was proven to be harder than anticipated. Not only did Luna flinch every now and again, but her marehood and the surrounding area were glistening with her juices. And yet, Celestia pressed her lips on the wet patch. It was one thing to taste her sister while under the influence of too much rum, but this was something completely different.

The faint tangy, yet rich taste of the small patch made Celestia realize that none of this was as terrible as she imagined; just a mare enjoying the taste of another mare, or rather, her sibling's taste. She felt her heart beat even faster. Slightly hesitant, she glanced at Luna's glistening vulva, inhaling its aroma with increasingly deeper breaths. A moment later, she snapped out of her reverie and traced the tip of her tongue over the wet, dark-blue crevice, right up to the extruded clit, and without touching the pink bud, she slid down again and probed the tiny opening. Unlike the faint taste of her sister's juices that she had on her fur, this was a little bit too much for her. She paused for a moment and looked up.

"Tia?" Luna breathed.

"I didn't expect this, Lu…"

"Oh," Luna said in a slightly disappointed voice, With what she had done earlier, it wasn't fair that Celestia stopped halfway through returning the favor. "We can—"

"I didn't say that I disliked it, Lu. It was just a little bit… overwhelming… It's certainly not bad, but just a little unexpected…"

"You tried this before, Tia…"

Celestia nodded. "With a little bit of help from a certain pirate captain…"

"Pirate… captain?"

"Rum, Lu. Rum."

"Oh," Luna replied with a hint of embarrassment in her tone, but that was swiftly gone as Celestia pressed her mouth against hers. It was the second time that she tasted herself through her sister, but it was the first time without any hint of alcohol.

And she wanted more.

Once again, Luna flinched as her sister's hoof caressed her mound, but it didn't sway her from massaging Celestia's muscle with her own, nor did it prompt her to break the kiss. Quite the opposite: Luna's forelegs wrapped around her sister's neck, ensuring that Celestia wouldn't stop.

But her worries were unwarranted. With her mouth and nethers being serviced by a different part of a gorgeous mare, Luna started to feel the consequences of her sister's ministrations. All that she could do was cling to Celestia even tighter and await for the inevitable.

And then it happened.

Her body shivered in an onslaught of delight. A single wave, quickly followed by another and another, made her release a small scream into Celestia's mouth. And yet, even though there was no way that Celestia could miss that kind of orgasm, she didn't stop with what she was doing. Not that she would want that, anyways. With the stimulation between her legs still going strong, combined with who was doing it, Luna came hard once again.

Celestia smirked as she paused for a moment and broke the kiss. She was waiting for her sister to catch a breath, her body still flinching from the overload of sensations.

"That was…" Luna said, then stopped abruptly and smiled. "Wow."

"Not bad for the second time?"

Luna snickered. She wanted to reply, but she only watched as Celestia's muzzle caressed her hoof, slowly gliding down the leg. She didn't need to guess twice to where the white muzzle was headed to.

"More?" Luna asked softly.

Celestia nodded subtly and kissed Luna's inner thigh. "Too bad that you aren't a stallion, Lu."

Luna blinked. "Sta…llion? Why?"

"Because I like them?" Celestia mused.

However, Luna wasn't too amused by that answer. Instead, she pulled her legs slightly closer as a response, and it was hard for Celestia not to notice the gesture.

"Luna? Did I do something wrong?" she asked in a worried tone.

"No," Luna replied flatly.

"Then w—" Her voice trailed off when she realized what she said. Her ears fell flat against her skull, and she hung her head in shame. "Oh."

"Yes, oh."

"Luna, I didn't mean it like that…"

Luna looked around. The warm shower inside of the marble-decorated room was still running, and there was still nopony around that would disturb the princesses, especially in the shower room. For Luna, it felt almost as intimate as in her castle, but she wasn't too keen to stay for much longer. She was eyeing the entrance door.

"We'll talk about this at home."

"No," Celestia replied. "Now," she added, the stern expression on her face.

"Fine." Luna took a deep breath. "Go ahead."

Celestia exhaled loudly. "That… wasn't intentional, Luna. It was—"

"You wanted me to be a replacement for a—"

"No, Luna," Celestia cut off her sister. "That never crossed my mind. Not even for a split second. If I'd wanted a penis, I'd open my drawer and grab one. Or two. Or however much I feel like it at the time." She sighed and continued, "I never thought that I'd be aroused by a mare, let alone sleep with her. You did all of that and more by just being you. I don't want you to be a stallion, Lu. I just want you to be… you.

"It's just…" She sighed. "I've always been with stallions, and… as satisfiable as grabbing one of those vibrators is, it's just… it's not the same."

Luna fell silent and hung her head. It took a couple of long moments before she raised her head again with a cracking voice. "S-sorry, Tia. I thought that you wanted—" Her voice trailed off. "I'm not sure anymore what I was thinking…"

"Luna… Lu…"

"I-I'm so sorry, Tia," Luna continued with a waver in her voice.

"Luna…" Celestia gently pressed her nose to her sister's. It wasn't the first time that she had done that. It was something that they did to each other, a sign of affection and understanding.

Luna rose with teary eyes and seeing the genuine smile on her sister's muzzle made her heart switch gears again. With emotions still running high between them, Luna pressed her lips against Celestia's. A flash of blue light briefly illuminated the shower room, but Celestia paid no heed to it.

"Tia?" Luna breathed amidst the kiss. "You really don't want me to be a stallion?"

"No, silly. I just want to—"

"Too bad," Luna replied with a smirk. "Look down."

Celestia slowly looked down. The lower part of Luna's sported a sheath that she had only seen on a stallion. She blinked.

"Luna? I don't…"

"It's all I can muster as of now… And even that is just temporary."

Celestia couldn't shift her eyes from the lump between her sister's legs. "How… how did you…"

"I read it in a book eons ago, but I think that it was destroyed even before I was banished for who knows what reason… Maybe a mare having a stallion's bits didn't sit well with somepony, and…"

"Does it… work?"

Luna shrugged. "I never tried… I just read what it said, but never got a chance to try it on anypony… You can tell there weren't that many mares that would be interested in a mare with a this thing…" She paused for a moment and saw her sister's gaze still transfixed on the sheath. "If you want to play with it...:"

"I… uh… Luna… you… we just… We just had a fight, remember? I don't want you to think—"

"I don't think that anymore," Luna cut her off. "I thought that you knew about the spell and that it was the sole reason that you wanted me. I really should’ve known better…"

Celestia pressed her lips against Luna's again. Without a second thought, Luna threw her hooves around Celestia and pulled her into a deeper kiss. With their lips still intertwined, Luna smiled softly.

"It twitched," Luna breathed. "It's… it's a really strange sensation…"

"Let me see if I can do something about it," Celestia offered. She parted with the moist, warm lips of her sister and lovingly kissed her on her eyelid, making Luna giggle. With another kiss landing on her shoulder and another one on her chest, Luna got onto her back again, her wings spread, enjoying the pampering of her sister's lips. Before closing her eyes, Luna took another glance towards her groin, her pink rod twitching and expanding as it protruded from her sheath.

Celestia caught her sister's glance. She leaned forward and stole a quick kiss from Luna's lips and returned back. With a sly grin, she looked up, anticipating Luna looking back. Celestia took a deep breath, inhaling her sister's unusual scent, and planted a kiss on her chest.

"Um…"

Celestia smirked. She stuck out her tongue a little bit and dragged it over Luna's sheath, making Luna elicit a very nonpony-like groan. In a moment, Luna's limp member became stiff, exactly as Celestia wanted it to be. As Celestia's tongue slipped from the rough surface of Luna's fur to the smooth one of her new appendage, she pressed her lips against it.

Luna gasped.

Celestia paused for a brief moment, waiting for what happens next. Luna, however, said nothing, but a small smile on her muzzle was the affirmation and encouragement Celestia needed to continue. And continue she did.

Her warm lips engulfed the head of her sister's stiff member and traced the mushroom-shape with the tip of her tongue, paying attention to every groove that she encountered.

Luna squirmed but made no effort to break what her big sister was doing to her. An onslaught of new sensations overwhelmed every fiber of her existence, and she enjoyed every moment of it. And as Celestia's lips wrapped around the pink head and gently started to suck on it, Luna started to thrust her hips rhythmically against Celestia's mouth slightly.

A little surprised in the beginning, Celestia quickly embraced her sister's gesture. With each thrust, she bounced back, allowing herself to accommodate more and more of the pink flesh inside of her mouth. It didn't take long before Celestia was happily swallowing at least half of her sister's length.

Luna nervously squirmed. "Tia… Tia, stop!"

With a good portion of Luna's organ still in her mouth, Celestia looked up.

"I'm about to—" Luna muttered.

"Is… that bad?" Celestia replied playfully, the tip of her tongue slowly swirling around Luna's pink head.

Luna shook her head. "But I want you to enjoy it as well…"

Celestia smiled. She lifted her head from the pink flesh, leaned forward, and kissed Luna deeply. Their tongues almost immediately started to play with each other, and a moment later, Celestia found herself under Luna's hot body.

"Tia?" Luna breathed hotly. "What are we even doing?"

"Each other, it seems," Celestia replied with a foalish giggle.

The answer, along with a giggle, granted Celestia another kiss. With it, she wrapped her forelegs around Luna's body, underneath her wings, while her hind legs eagerly caressed Luna's cutie mark. Luna didn’t stay impartial for long as she instinctively started to rub against her sister.

"Luna," Celestia breathed and bit her lip in ecstasy as Luna entered her glistening hole effortlessly, making her squirm. She clung to her sister even tighter and elicited a groan of pleasure when Luna's erection slipped deeply inside of her.

Luna cautiously paused for a brief moment, but her sister's body language encouraged her to continue. With another thrust, Celestia closed her eyes and smiled blissfully. Goodnes, she needed that. Seeing the expression on her sister's face, Luna continued, letting herself be eloped in the onslaught of new sensations. It didn't take long before she sped up like a horny stallion.

Celestia suddenly gripped Luna tightly. The loud groan from her mouth was nothing princess-like. Hay, it was hardly recognisable as a sound that any pony would make. With Luna's thrusts deep inside of her continuing, Celestia finally shivered, and a tremendus orgasmic shockwave rippled through her body as her sister's final thrust pushed her over the edge one more time.

However, Luna wasn't lagging that far behind her sister. As Celestia's vagina contracted, she too was pushed over the edge, spurting a big load of semen into her.

Exhausted, Luna collapsed onto the warm body of her sister, and aside from the heavy breathing emitted from the royal sisters, only the running shower could still be heard.

As much as she had enjoyed cuddling with a mare, Luna's smile waned shortly afterwards, and she finally stood up. The running shower caught her attention for what felt like minutes to her.

Meanwhile, Celestia continued to lay silently, her muscles still sparsely contracting. Aside from when she was fooling around with Luna, she couldn't remember when was the last time she was so overwhelmed with pleasure.

Luna, the only mare that had ever managed to turn her on, was standing only a few feet away, now free of the magical appendage. Even though she was satisfied, Celestia's wings rose up in anticipation as Luna's warm scent teased her nostril.

Celestia giggled. "A bit for a royal thought?" she asked softly.

"You'd be poor, Tia," Luna replied absentmindedly.

"Do tell?"

"This," she said, turning around to Celestia. "I… we… did we made a mistake?" Luna paused for a moment. "If this gets out, what happens then? Between us? Between our ponies? I… we could be seen as selfish, and—"

"Luna. Lu," Celestia spoke in a soothing tone. "All of this is a little bit fast for me as well. If you said a few months ago that I'd be sharing anything more than a friendly kiss on a cheek with a mare, I'd laugh. But now…"

"Yeah. These past few months had been… Interesting for the both of us…"

Celestia silently nodded, paused for a moment and pointed towards the running shower. "To change the topic, I think that we are both in desperate need of a shower now."

"That too. You way more than me. And I'm not squeaky clean either."

Celestia giggled. "Younger ponies first," she mused.

"Don't you mean 'older ponies first'?"

Celestia shook her head. "We could also shower together, silly. There's enough room to squeeze in half of Canterlot."

Luna smirked.

"What?"

"Now you made me imagine some nobles sharing a washroom with an 'icky commoner'."

Celestia laughed wholeheartedly, flicked her horn, and together with her sister, stepped under the much needed torrent of hot water. She closed her eyes and left her mind wander and dig through the silly moments of their pasts as the traces of their act were slowly washed away. She only opened them when something subtly nudged her wing.

Only a few inches away, Luna curiously gazed at Celestia.

"Luna?"

"Tia," Luna said after a long pause. "I enjoyed what happened today. I'm still uncertain if I should’ve enjoyed it as much as I did, but…"

"Luna…"

"I just want to know if we can do it again…"

Celestia smiled. "You are still welcome in my chambers at any time, Lu. I've said that more times than I care to count, and I still have no desire to change it any time soon."

Happy, Luna pressed her lips onto her sister's once again.

Epilogue - Six Years Later
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Epilogue - Six Years Later

Luna sighed. It had been a long month for her away from Canterlot, made up of duties that she didn’t want to attend to and hours spent arguing with ponies that she didn't particularly like in the first place. Fortunately, the tiring time came to an end, allowing her to finally return home.

As it was still the dead of night, she knew that Celestia was deep in her slumber, so she turned her attention to a smaller room that was adjacent to theirs and was cozy enough to be a home for a young mare. With a smile and a soft push, she opened the door to a dark, and in her opinion, a little too pink room.

Luna silently sneaked in and kept an eye on a sleeping light-blue alicorn in bed for a little while before she stepped toward the filly and placed a loving kiss on her forehead. "You're not sleeping, little one," she whispered.

The gesture was countered with a tight hug from the filly almost immediately. "Aunt Luna!"

"H-hey! Not so tight! I'd still like to breathe…"

"Oops, sorry," the filly breathed and quickly pulled the small hooves to herself.

"You are up quite early, Twinkle. Couldn't sleep?" Luna asked in a mere whisper.

Twinkle shook her head. "I, uh…" She pulled out a big book from underneath her pillow.

"Reading? This late?"

The filly shrugged. "I like the story, so…"

"Little Red Riding Pony," Luna read the title. "Isn't that the story where the grandma eats the wolf?"

"Aunt Luna! That's not how the story goes!"

Much to the filly's dismay, Luna giggled. "You should be sleeping instead of staying up to read the entire night."

Twinkle nodded and gave Luna a goodnight hug. "Aunt Luna?"

"Yes, little one?"

"Could… uh… would you like to be my mom?"

Luna blinked. "That's an odd question. Where did this come from?"

Twinkle shrugged. "A few of my friends have two moms, and I'd wondered if you'd be mine…"

"Oh, really? What does your mom have to say about it?"

"Dunno," Twinkle said meekly. "I hadn't asked. But… would you?"

Luna giggled. "Twinkle, she's my sister, you silly. Sisters don't—"

"But you love her, no? And you spend a lot of time with her, no?"

Luna smirked. "Of course I do. What kind of sister would I be if I didn't love her?"

"And me too?"

"I love you too, you silly filly."

"Then if mom agrees, will you be my mom? My second mom?"

Luna shook her head. "You don't like me being your aunt?"

Twinkle groaned. "Not the same."

"You should be sleeping," Luna said, amused, "not pouting cutely in the middle of the night."

"I'm not cute!" the filly breathed harshly.

"And you’re not asleep either," Luna whispered back. "Sleep tight, Princess Twinkle."

Twinkle nodded and curled into her blankets, leaving Luna to tuck her in and kiss her goodnight.

* * *

With one room visited, Luna carefully opened the door to her sister's room and sneaked to the nethers of Celestia's bed. The sight was something to behold; the snow-white princess was lying on her back, her wings and legs spread, and her head partially buried in the small lake of pillows. Her hooves were clinging an odd dark pillow, something that was gifted by Luna before her departure. Nothing about her posture screamed "princess-like", but Luna knew better.

After watching her sister somehow coping with that posture for a while, Luna stepped onto the bed, careful not to disrupt her sister's slumber just yet. She smirked at the scene, leaned forward, and pressed her muzzle to Celestia's.

Startled and confused at first, Celestia quickly released the pillow, wrapped her forehooves around Luna, and pulled her closer to deepen their kiss.

"Good morning to you too," Celestia said with a smile. "I was hoping that you'd be home earlier… How did it go?"

"I arrived as soon as I could," Luna groaned. "With nobles present… It all went as well as expected…"

"That bad?"

"Hrumph."

"That bad."

"Worse. But it's not something that I want to talk about just now. I just want to spend a little bit of time with my princess…"

Celestia smiled and ruffled her sister's feathers. "Twinkle was asking when you would be coming back almost every day."

Luna nodded. "I just spoke to her. She was reading through the entirety of the night, and…"

"I know…" Celestia shrugged. "Twilight gave her too many books. While you were away, the only way that I could make her go to bed was allowing her to read in it…"

"Mhm," Luna murmured. "She also said that she doesn't want me to be her aunt anymore."

Celestia blinked. "Wait, what?"

"She wants me to be her mom."

Celestia smirked. "Well, considering she's just as much yours as she is mine… Should we tell her?"

"Tia…"

"I know, Luna, I know. It wouldn't be fair to her if she finds out just yet…"

"Or at all…"

"Oh, I'm sure she will. She may still be a little filly, but she already asked me why I often look at you that way… So it's just a matter of time…"

Luna nodded. "We'll talk about it when the time comes, then. But right now, I desperately need some very late dinner, a shower, and a lot of sleep."

"Mmm… Luna?"

"Hm?"

"We've been together since I birthed Twinkle, but I never asked… Do you… Did you ever wanted things to turn out differently?"

Luna smiled. "And give up on our daughter, my pretty, but sometimes annoying marefriend, my—"

"Secrecy? After all of this time, only a hoof-full of ponies knows about us… And if word ever gets out—"

"I thought about that," Luna murmured after a pause. "But I got used to being nothing more than a sister outside of our rooms. And even if everypony finds out, so be it. There's nopony else that I'd rather share my life with."

"Glad to hear," Celestia whispered into her sister's ear.

"Why?" Luna asked curiously.

With Luna still firmly in the grasp of her hooves, Celestia, with a flick of her horn, teleported a small, plain white box into her sister's lap and silently watched. Her heart started to race as Luna’s light-blue magic pulled the ribbon and opened the miniature package.

The impact of it was tremendous. Luna's wings shot up, and she wrapped her hooves around Celestia, pressing her lips on her sister's counterpart and refusing to let go.

At that moment, a sisterly bond, virtually unbreakable, became even stronger still. Within the box, there was a tiny ring, its white-gold trim infused by a tiny turquoise gem. Beside it, there was a tiny piece of paper, sporting a small but easily readable text: "Will you marry me?"

Author's Note

https://youtu.be/yCjJyiqpAuU?t=19