A Twilight Reward

by Jest

Rating: mature
Tags: Romance, Sex, Princess Celestia, Slice of Life, Alternate Universe, Twilight Sparkle, My Little Pony: Friendship is Magic
Length: 22056

Twilight has ascended only a week prior and the usual visits by mistress Celestia have stopped, what could this mean?

It has been a week since Twilight's ascension and her mistress has not come to use her services once in that time. A shocking change of pace for Celestia's prized concubine, who has serviced her mistress since as far back as she could remember. What could be keeping her so busy?

kink warnings. Belly bulge, cum inflation, huge dick, exhibitionism, impregnation, futa on mare, domination, pet play.

Special thanks to Kyo for the picture which is up in the source! Check it out! ;)

Published 2016-12-08 05:40:01 UTC
Last updated 2016-12-08 05:40:01 UTC

A reward long since earned...

The copper taste of blood jarred Twilight from her nervous pacing. Lifting her muzzle in shock, she was able to free her tortured lip from her incessant chewing. She rubbed the spot with a hoof while looking out the window of the library. Her alicorn regeneration already made short work of the damaged lip.

“What is keeping her so long?” she asked nopony in particular. When that same nonexistent pony failed to respond, she let her head sink low in defeat. She was tempted to continue pacing in her now quite familiar groove in the floor but a yawn prevented her from pursuing her nervous habit.

“Twi? What are you still doing awake?” called the tired voice of her dragon assistant from his bed at the base of her own.

“Oh nothing, just Celestia was supposed to write to me is all.”

“You're still waiting for that? It's been a week Twi, just write to her and ask about the delay, I’m sure she's just busy or something.” He rubbed his eyes with a claw and rolled back over in his bed. A few moments later and already the content dragon began to snore.

Twilight fumed and snorted angrily before turning away to stare at the distant moon. She wanted to chew out Spike or perhaps lecture him on the importance of patience, but a part of her admitted he was probably right. She was losing sleep, and receiving some kind of word - even if it was just “I am busy” - would set her mind at ease. Admitting defeat, she at last lay down on her bed with a graceless flop, resolving to send a letter asking what was holding up her mistress in the morning.

Her mane covered her face and if she was actually going to try and fall asleep, then she would have to make a better attempt than this graceless pile she had landed in. She grumbled for a few seconds before rolling onto her back. She willed herself to calm down, but her mind was already searching for a reason as to why Celestia was breaking from their tradition. During her studies as Celestia’s faithful student, they had never missed a single weekly get together. Even with Twilight coming to ponyville or the return of Luna or all the other adventures her and her friends had gotten into had never changed their weekly face to face meetings. Not once!

Maybe something had happened? Maybe a new evil had arisen! She began to chew her lip again but spat it back out when she reopened the freshly healed wound. She made a mental note to stop that bad habit, but found that she was succumbing to that same habit while making a mental note about stopping it.

Okay Twilight, she thought to herself. Just breathe and think about this. She may not have written, since my becoming an alicorn just a week ago today but that doesn't mean anything bad has happened. She cast a quick glance at the moon and noted its position, a week ago yesterday she corrected. Maybe there was some kind of protocol now that they were equals.

That drew a stifled giggle from the newest alicorn. Ha, as if. They would never be equals and that was exactly the way Twilight wanted it. Celestia was a god and she was just that, god’s- No, can't go there Twi, I’m not allowed to. She lifted her naughty right hoof that had strayed between her legs and glared at the offending appendage as if demanding an apology. Her hoof lowered another inch before her glare deepened and it returned to her side where it belonged. I wouldn't want to disappoint her.

Twilight rolled onto her side and looked back out the window while her hooves did as they usually did when she was nervous and alone, they ran across the collar around her neck. She felt each bump and ridge along the symbol of her position, feeling the reaffirming shape of Celestia’s cutie mark around her neck. Even the hard metal that made up the collar seemed warm to the touch tonight. It was as if Celestia was reaching out through it just to warm her pet up during a cold and lonely night. Part of Twilight felt a little betrayed; if Celestia was thinking of her why didn't she contact her?

The alicorn curled into a ball and ran her hooves over the necklace again. Feeling every intricate inch from the cutie mark on the front to the rounded edges of the equestrian sky steel that occasionally rubbed against her neck when she walked. She remembered fondly the first time she brought up the tightness.

“Is it supposed to rub all the time? It’s not like I’m complaining or-” A raised white hoof was all it took for a young Twilight to close her mouth securely.

“Of course it is, my pet. It is to remind you who owns you with every step you take.” With each word Celestia took a step closer to the much smaller teenage unicorn. With the room empty, Twilight knew exactly what those steps meant. Every step made her quake in anticipation - her mind already preparing her to do her sworn duty as Celestia’s concubine.

Celestia’s form towered over the small unicorn making Twilight feel small, vulnerable yet incredibly aroused. There she stood for several long seconds before she leaned down and brought her muzzle close to the unicorn’s own. “But you can't be seen wearing it, or I'm afraid I might be asked some rather awkward questions. I would rather keep your service a secret until you realize your destiny and soar.”

Twilight cocked her head slightly. Celestia wasn't the type of pony to say anything flippantly. Every word, every slight difference in inflection had a reason - a point. Why would she say ‘soar’? Twilight shook her head, it wasn't the time or the place for such musings.

A horrible thought occurred to her suddenly, and although it was crazy and Twilight knew it wasn't true, she still took a step back, a hoof clutching the collar resting around her neck. Fear in her eyes that seemed to scream in defiance of any force that would remove her collar. This only made the alicorn laugh, disarming what little remained of the unicorn’s fear. “Don't worry, I have enchanted it to make it invisible to everyone but you and I.”

The alicorn pushed the smaller pony down with a hoof, making the unicorn slip between her towering legs, where the heady smell of Celestia’s arousal assaulted Twilight’s nose. Her back legs began to twitch and rub together, as arousal overcame her as well. Twilight knew exactly what to do and quickly went to work licking the semi hard shaft between the princess's legs. As her licking finally drew the prize she sought from its sheath, the princess smiled and gently began to pet the smaller pony with long caresses of her magic from head to tail.

The unicorn moaned and redoubled her efforts, sucking the tip that had started to emerge while her magic gently massaged the princesses massively swollen balls. If she hadn't been training day in and day out for years she would have no hope of fitting her lips around the massive throbbing form of her princesses’ titanic erection. But Twilight’s private tutelage amongst Celestia’s harem ensured she was able to fit the sun princesses cock into her mouth with ease.

After letting out a low moan the alicorn continued. “Your collar will also serve as a teleportation device if I ever need you by my side. It will warm up quite a bit a few seconds before the spell activates. I wouldn't want to catch you on the toilet, my pet,” she tittered lightly and if the unicorn didn't have a mouth full of alicorn cock at the moment she would have laughed politely as well. “It will also warm up whenever I think of you as well as allow me to send you messages directly if necessary. I expect it to be pristine and polished at all times my little pet.”

Twilight pulled her lips from the alicorn cock that had filled her mouth so utterly she could barely manage to hum with it inside her. “Yes mistress, of course.” She dove back down instantly,swallowing as much delicious alicorn cock as she could manage.

When Twilight asked later in passing about why it would need to heat up when Celestia thought of her, Celestia merely dismissed it as a way of warning her favored concubine of her desire and to prepare to service her. Although Twilight didn't voice any more concerns, curiosity got the better of her and made her mind wander. Why bother with that facet if it had a messaging enchantment already? It was a strangely romantic gesture from the usually stoic princess, one that made Twilight wonder for a long time if Celestia thought of her as more than just her favored concubine.

The pleasant memory gone, Twilight retracted righty who had once more sought the honeypot that Celestia owned. Chastising herself once more, she crossed her hooves in front of her and frowned. This waiting was starting to get to her. She had been hoping for a reward or to be able to at least talk to Celestia again after ascending. But the ensuing week had brought nothing but bills and congratulations from friends and family. While they were welcomingly received, they were simply not what Twilight Sparkle wanted right now.

She rolled over again angrily, thinking to herself once more if she should just go to sleep so that tomorrow would be here faster. Than something startled her from her angry attempts at tossing her bedding all over the room. Her neck was warm, very warm. Celestia was thinking about her right now! Twilight nearly melted into her bed at the confirmation that her mistress was thinking about her - using some of her time to think of somepony as small as her.

A few seconds later she could feel the tight collar constrict slightly before returning to its original size. The alicorn shot out of bed and immediately started going through mental checklist while running to the bathroom.

Nothing in her teeth, check. Mane and tail? She looked them over and silently thanked Celestia that in her angry bed thrashing she hadn't messed up her mane. Smell? She took a big whiff of herself before nodding triumphantly. Check. Unmentionables? She spun around so her back end faced the mirror and quickly raised her tail. Squeaky clean and a little wet. She levitated a towel over and gently ensured she was dry. Check. The lipstick Celestia liked? She quickly drew it out from a drawer and applied it perfectly without even looking in the mirror. Check. The next constriction drew her from her list.

She hastily checked everything else off in her head and trotted back outside. All the while making sure she didn’t alert Spike. She summoned a piece of paper and an ink quill and quickly wrote a note before laying it next to Spike’s still slumbering form.

Dear Spike

Celestia summoned me, but don't worry it's not an emergency. I should be back by the end of the day. If not, make sure to tend to the library. Sorry to leave on such short notice!

P.S: I was saving you a fire opal for later but if you want it, it's hidden in the flour container.

Love

Mom.

Signing her name quickly, she pranced on the spot. Her mind running with what might happen next. Celestia had summoned her finally! But judging from the heat radiating from her collar, something was off. Was something wrong? A third constriction broke her train of thought. On reflex she squared her legs and closed her eyes, relaxing her body completely in the matter of a few heart beats. As an afterthought she gently closed the bathroom door, conscious to not wake up Spike with the ensuring light show.

The magic built slowly within the collar, circling around and around as several balls of white light glowed bright and grew larger with each rotation. Until they were nearly blinding if anyone was foolish enough to look at them. Twilight had felt this magic hundreds of times before, so she neither looked nor flinched. However she did have to resist the urge to begin prancing in place as the excitement nearly overwhelmed her senses.

When she felt the white orbs become a solid tube of white undulating light, her body began to tingle. The priming effects of the teleportation, Twilight realized, since objects that ‘cast’ spells take awhile to both build up and ensure they do not misfire. As a regular spell is in essence guided by the casters intent, and mind enchanted artifacts like this need strict casting ‘rules.’ She mused about maybe taking up enchanting again before she felt the tingly feeling that came with imminent teleportation rush through her.

In the blink of an eye she found herself in Celestia’s private room. She opened her eyes and rubbed the spots out of them quickly. Before she regained the use of her ocular organs, she felt a wing drape across her back. She instantly leaned against it and looked down as she did. Subconsciously submitting herself to the larger alicorn without even having to think about it.

As the last of the stars fled from her eyes, she heard the sultry tone of her mistress mere millimeters from her ear. “Congratulations again, my dear Twilight.” Twilight’s goddess gently nuzzled her, making her knees weak and making a thrill run through her heart. She had only done this a few times in her entire life and the feeling of closeness it granted made her melt.

She blinked a few more times to clear her eyes and looked up to her mentor/goddess/mistress/second mother with awe. The room was sparsely lit but the balcony was open to the bright moonlight that crept in. Twilight gaped unable to speak a word until the older alicorn giggled behind a hoof and gave her flank a smack.

Knowing exactly what she wanted Twilight nodded once and bent down, walking between the elder alicorn’s legs and nearly running face first into her dick. “Oh my princess, you are so hard already.” The enormous alicorn cock that Twilight was intimately familiar with stood at full mast, without any of the usual coaxing she had to do.

Her tongue ran across her lips at the sight and she sucked a stray strand of drool that dribbled from her muzzle. In all the thousands of times Twilight had sucked that glorious alicorn cock it almost always needed some kind of coaxing. Twilight’s eyes looked down to the normally large balls that hung so low they rubbed gently against the princess’ knees. Twilight’s legs nearly buckled at the sight of the massive orbs of flesh. She must not have came since… She did a quick calculation and was startled to realize she must not have came since the last time Twilight had serviced her.

“Ahem.” The elder alicorn’s tone was curt but not without kindness.

Twilight took the cue instantly. “Sorry mistress, you're just so hard and full. I don't even know if I have room for all of that in my stomach. I am sorry in advance if I can't-”

“Now now my pet, pay it no mind. When you get to work I will give you your first lesson on alicorn physiology.” Celestia could feel her pet nod once before diving down onto her cock and swallowing nearly half of it with practiced ease.

Celestia felt the familiar poke of her pet’s horn against her underbelly. Although this would have usually been grounds for punishment the way it just barely brushed her made her laugh. The newest alicorn was clearly unprepared for the extra length of her horn. Pretending not to notice the transgression Celestia merely levitated a ring over and with a master’s ease slid it over Twilight’s horn without having to look at her.

Once secured to the base of her horn the familiar poking disappeared entirely, making her cock sleeve jump in shock. Before she could say anything through the nearly three feet of alicorn cock buried down her throat, Celestia interrupted her. “I noticed you are not used to the length of your horn.” She let the implied threat hang in the air for a few seconds. Enjoying the sensation of the smaller alicorn convulsing in terror at the mere mention. “That is however due to the fact that it is longer and not any fault of your own.” She felt the trembling stop and attention renew on her aching stallionhood. Twilight was just too easy to tease.

Twilight dove down greedily, having just felt the familiar sensation of her throat relaxing enough that she could push the last foot and a half of glorious alicorn cock down her gullet. As she felt the the cock head plow into her stomach her muzzle rested firmly against the base of her mistresses’ pubic mound making her groan in pleasure. Twilight had grown to love these sessions almost more than the pony she was currently deepthroating. So immense was the pleasure radiating off the huge amount of cock resting inside her that she nearly came the instant her lips pressed against the familiar white balls.

Celestia let out a low moan of pleasure, which made Twilight mentally pump a hoof in the air in excitement. She knew she was good, she had blown Celestia every single week, sometimes every single day for nearly 15 years. She knew every intricate detail of that perfect cock down to it's 7 unique veins and nearly 7 inch flare. Just thinking about what was about to come almost made her finish right then and there without even having to touch herself. She held back though using all the mental tricks at her disposal to ensure she didn't cum before Celestia did.

When she felt the rest of her body loosen enough for her to begin to move she relinquished her tongue assault and simply lay it comforting around the bottom of Celestia’s cock. Covering as much flesh as possible to ensure the maximum amount of pleasure. Then when she was sure she was ready, she pulled nearly three quarters the way out and slammed her muzzle back down the length of the cock.

Celestia absolutely loved this part, and the way Twilight could feel her subtly shifting her weight from leg to leg made a familiar sense of pride bloom in her chest. As she repeated the deep pounding of her own face she heard Celestia speak again. With attention only made possible by over a decade of practice, she heard and understood every word while still giving the stallionhood in her throat it's proper attention. She almost giggled at the thought, she must have received at least a couple of dozen lessons while having Celestia’s balls resting against her chin as she furiously attempted to bring her to orgasm.

“The ring should make things easy on you Twilight, make sure you put it on before you get down there next time.” Although the second half of the sentence carried a certain weight that made Twilight squirm the tone implied forgiveness so she tried to make a mental note to not worry.

Celestia did not have to see her concubine’s eyes to know that she must be excited by the reminder that there would be a next time. She was as eager to please as the moment she took her under her wing, and Celestia had been careful to cultivate that feeling for as long as possible. A sudden pressure on her swollen balls drew her from her thoughts and the feelings of pleasure assaulting her mind. “Those are very tender Twilight my dear, I know I usually allow you to play with them however this time I must insist that you do not untill I have had a chance to empty them somewhat.”

The elder alicorn could feel the sadness radiate off her pet in waves before quickly disappearing as Twilight renewed her masterful ministrations on her cock. Celestia let her tongue slip from her mouth when she felt the renewed tightness of her pet’s throat. Pulling her tongue in quickly before anypony could see the shameful act, she reminded herself that with the effort Twilight was putting into her duty that it wouldn't be long and she still had to explain a few things.

Clearing her throat in an effort to bring herself to the task at hoof Celestia pinched herself with her magic after the first attempt failed. “Twilight I must first apologize for not explaining to you why I have not summoned you for the past week.” She knew what Twilight was thinking before it even entered her mind and the next words cut off her train of thought before it could leave the station. “It is no fault of your own but I thought you would appreciate the surprise and you are far too good at reading me to not figure it out before it's ready.”

She could feel Twilight’s head cock slightly at the direction that the one way conversation was going. The furious slurping noises dying down as she tried to ensure she heard every word. Her throat constricted almost painfully around the massive invader and she threw herself utterly into every thrust. Making her lips collide against her the base of Celestia’s cock with enough force to make her enormous balls shake.

“As you have noticed, your own physiology has been changing and will continue to change. However I believe we are at the point that we can do something we have never done before.” Celestia let the tantalizing proposition hang, instead tapping Twilight’s rump slightly.

Knowing this signal meant Celestia was close (and after only 10 minutes, almost a new record!) Twilight pulled out all the stops to please her mistress. She widened her tongue as much as possible and wrapped it tight around the thick cock. All the while she sucked gently and continued to furiously face fuck herself with as much strength as she could muster. Even pushing herself to pull nearly all four feet of cock out of her throat only to slam back down. The entire motion was incredibly tiring and meant that Twilight had to rock back and forth on her hooves using her legs and barrel muscles in tandem to ensure she didn't slip.

The effects were immediate and she could feel Celestia stand slightly taller when her now slightly flared head slammed against the back of her stomach. A few seconds later she felt the double tap signifying her mistress was seconds from cumming. Knowing exactly what to do, twilight cast a quick spell to ensure that breathing was no longer necessary and quickly began to grind her face against her goddess’ crotch. All the while clenching and unclenching her throat rapidly.

After only three more seconds of this she felt Celestia’s powerful balls contract audibly. The sound of her cum churning made Twilight rethink this entire thing, she wasn't quite sure if she had the stomach capacity for one of Celestia’s loads when she was this backed up. Regardless, Celestia thought Twilight was ready and that was all that mattered after all. On instinct she relaxed all her muscles from her lips to her stomach. Ensuring that when the enormous load began traveling down the equally enormous cock that the ensuing bubble of flesh was able to pass without issue.

When she felt the force at which that first wave came down her eyes went wide and a millisecond later she felt the powerful load blast into her stomach with enough strength to make her gag. Which was quite the feat as she has done this more times than she could even count. The next wave was mercifully not as titanic, but it still sent her reeling and her stomach already felt full and distended. But this was just the first two out of a possible forty to eighty. She trusted in her mistress completely and submitted herself without second thought, knowing that Celestia’s words about her safety were absolute truth.

When she felt the fortieth wave of cum splash into her now well distended stomach she felt a tiny ember of worry flare in her chest. Celestia wasn't slowing down, she really hadn't used any of her other concubines. She wondered how big she would get and just how many loads Celestia would make her take.

Feeling her pet’s worry, Celestia hummed and gently pressed her belly against Twilight’s back. The effect was instantaneous - Twilight relaxed and remembered to trust her mistress completely, as she always had. After all she had taken over a hundred at one time before, although that was with her abstaining from food for a while to make room. But still, she could probably do eighty loads without issue.

She took a moment to rub her stomach with a hoof, loving the feeling as her body swelled to accommodate Celestia’s massive amount of cum. Twilight prided herself on her ability to take anything her mistress could dish out and although her pony physiology meant she couldn't have real sex with her mistress, she was determined to make up for that by being the best cock sucker Equestria had ever known. Which if you asked Celestia she was, out of all forty two of her concubines Twilight was the absolute best cock sucker and easily her favorite, never mind she was also the most well used of the bunch. The only other pony who could even claim to reach Twilight’s level of popularity with their princess was a particular earth pony stallion who claims to be the only pony alive to be able to take the full wrath of their princesses’ massive endowment in a hole that wasn't their mouth. A feat that Twilight did everything she could to best.

But up until her ascension there was only one hole of hers that her mistress could use safely. She stopped a second, nearly gagging on the cock still firmly planted in her cum filled stomach. She wasn't just a pony anymore, what does that mean? She felt the ember of worry disappear only to be replaced by a raging flame of hope. She might be able to do it! Finally! She stuffed those thoughts away, they were distracting her from her one true purpose. Pleasing Celestia.

She redoubled her efforts and began massaging the entirety of Celestia’s length with her talented throat muscles. As she felt number seventy hit her stomach, she extended her tongue out of her muzzle and gently lapped at Celestia’s massive basketball sized balls. Teasing out a few last tiny squirts of cum that made her shiver in delight. She loved milking her mistress of every single last drop of cum, it made her feel fulfilled. She would almost have giggled at the little joke she made, had her body not been occupied by Celestia’s endowment. She rubbed her stomach once more, a sense of pride welling within her.

She could probably pass as pregnant with twins and ready to deliver, which did little to stop the well of pride from rising further. Although Twilight couldn't see her stomach, she had been used by Celestia enough to remember exactly how big she got after she had received number seventy four. She rubbed a hoof over her belly to check and smiled a little despite the cock that took up the entirety of her mouth. There was no doubt about it - Celestia had cum more then usual, not since... Twilight paused and thought about it. She wasn't sure, not in a long time anyway.

With Celestia’s orgasm dying down, Twilight was finally able to fill her lungs with new air. She was a master at holding her breath and catching small breaks when she could and had decades of practice having helped to push her limit well beyond the reaches of a normal pony. The little bit of magic she knew to help in that regard extended her limits just long enough to swallow every last drop of Celestia’s seemingly endless orgasm. Which was just another thing she took a small amount of pride in. Beat that, Flash Sentry, you gay bottomless slut and your stupidly massive ass! She stuffed the thought away quickly and returned to serving her mistress, putting the thought of the only other concubine she had ever been jealous of behind her.

Her tongue ran up and down the massive pillar of alicorn flesh still lodged in her throat. Squeezing it slightly to ensure she sucked every last drop of delicious cum that she craved. She had stuffed away the intense longing for Celestia’s cum for a long time and now with it finally fulfilled she allowed herself to relax fully for the first time in what felt like weeks.

Throughout it all Celestia remained stoic and impassive, although the average pony would equate sex with her with sex with a statue Twilight knew better. Due to serving her since she first got her cutie mark she knew every movement and noise that most ponies wouldn't even notice. The slight back step right before she came meant it was a big one. The steady exhale when Twilight really put herself into it meant she did well. The sudden but very tiny inhale when Celestia bottomed out into her student’s belly meant she finally felt relieved. Even the tiny noises she made when she came were not missed by the observant slave. Each one sent a ripple down Twilight’s spine and made her become even wetter. Although she knew better than to fulfill those urges until later. It was one of Celestia’s quirks that she didn't like people cumming without permission and although they could work something out through tapping or grunts Twilight knew she loved hearing her beg to cum far too much to take that away from her mistress.

Twilight felt the cock lodged from lips to stomach slowly soften and allow her to breathe easier. Her heart fell for she always hated this part, for in about thirty seconds Celestia’s cock would finally recede into its sheathe and Twilight would be empty once more until her mistress called upon her services again. She was determined to enjoy the last few seconds of partial fullness that Celestia’s cock provided before she felt it slip out from between her lips and disappear.

She pouted but tried not to let it show while shuffling back and slipping out from between Celestia’s larger legs with practiced ease. Her smile was wide and she stared expectantly up at her mistress.

Celestia herself wore a similar smile only wider still. “I missed you.”

Twilight felt her own hoof press against her heart as if that would stop it from fluttering out of her chest. Remembering herself she bowed slightly. “I missed you very much mistress.” She did another short bow not out of custom but because she was trying to wipe away the blush that had overtaken her face without Celestia seeing.

Celestia merely smiled and beckoned her closer, not with a motion or a sound but just the way she looked at her. Twilight knew. Walking closer she beamed as Celestia leaned down so they were at eye level. Then with a quickness Twilight hadn't seen out of Celestia in years she kissed her lightly on the lips.

It took all of Twilight’s determination not to faint or pass out. The princess, her goddess, her mistress the only pony she could ever truly love had kissed her. She had only ever done that three times in her entire life! Once when she accepted Celestia’s invitation to become her private concubine, a second time when she had graduated (that time only on the cheek because they were in public). With the last kiss delivered in secret a day later after Luna’s redemption at the hooves of Twilight and the element bearers.

But never had she kissed her full on the lips like this! It was always sudden or stolen or when twilight lay exposed. This was almost a kiss of two ponies who were in love- no she can't think that way. She had long since accepted that Celestia could never truly love her the way Twilight loved Celestia. But that kiss. Twilight pressed a hoof to her lips and withdrew it slightly. It was marred somewhat by the black lipstick Celestia liked on her and Celestia’s own pink lipstick she rarely wore.

“P-princess I am not worthy.” Twilight looked up at her mistress with tears at the edge of her eyes.

“Shhh my little pony.” Celestia seemed to slip in next to her without moving, extending a wing over the smaller alicorn. Leaning in close to her pet’s ear she whispered. “You are worthy.”

That time Twilight did faint, the last thing that went through her mind was the fact that she almost came from her princesses’ words alone.

A few minutes later she awoke on heavenly soft bed with something warm behind her and wrapped around her. She looked down to see a massive white cock between her legs and pressing against her belly nearly all the way up to her ribs. Her squishy cum filled belly wrapping around the huge cock somewhat. “Princess?”

The angelic voice of her teacher whispered gently into her ear. “Yes my faithful student?”

Twilight trembled, Celestia rarely used that tone with her and only after a success worthy of celebration. Why then? It didn't matter. Twilight pressed herself up against the fluffy mass behind her and wrapped her hooves around the leg that draped over her side and lay in front of her. Cherishing the closeness immeasurably. Celestia took the hint and wrapped her hooves around her pet and squeezed gently also relishing the soft feeling of fur against her body.

There they lay for many minutes both locked within their own inner thoughts as neither felt like breaking the rare moment of peace they were granted. However with a soft sigh Celestia spoke up. “I didn't properly congratulate you for completing one of the last of my tests and becoming an alicorn.”

“You don't have to do that princess.”

“Oh but I do, for you will always be my personal toy. Now you will be for the rest of eternity.”

“Oh my I oh.” Twilight summoned a fan of magic and pumped it with all her might trying not to faint or continue stammering in the presence of her mistress. “I don't know what to say.”

“Say you will, and that you're happy to do so,” Celestia’s voice was unusual but Twilight didn't think about it. She had insulted her princess by not reaffirming her commitment and she would not let that stand a moment longer.

“Of course my mistress I am yours to use as you see fit forever and ever until the sun burns out,” and she squeezed the leg her forehooves were wrapped around, all the while silently panicking that she didn't pour enough love and devotion into her words.

The room was silent for a moment and Celestia’s body seemed tense although Twilight wasn't sure if this was just in her imagination. After a moment Twilight could feel Celestia’s smile, a true smile given only to her. It radiated a heat all on its own and sent Twilight's heart aflutter once more. “Forgive an old mare for being a worry wart, my dear pet.”

“Of course mistress. Everypony has worries,” Stupid Twilight, Celestia doesn't! She's a goddess and an ancient alicorn!

Instead of mocking the younger alicorn for her choice of words, Celestia laughed. “That is true my student, even I,” and then in a smaller tone barely above a whisper. “But only when it comes to matters of the heart.”

Oh stars above. Twilight was just about ready to explode and she needed to either satisfy her curiosity or the burning between her legs. “What do you mean mistress?” she asked trying to say those five words with innocent curiosity. Celestia could hear the barely contained excitement behind Twilight’s voice.

Maybe I should stop teasing the poor dear. Celestia smiled coyly, thankful that Twilight couldn't see her face right now. “Well, you see my faithful student,” her cadance was longer and each word seemed to have a slight break between it. Within her legs Twilight was about to explode or vibrate out of her grasp. Deciding that she didn't want to see if Twilight would actually explode, Celestia stopped teasing and spoke naturally. “Well first tell me this. Why can't we have sex?”

“You are just too large for the normal pony,” responded Twilight. Although she left something unsaid, Celestia ignored it. Meanwhile Twilight was imagining flicking Flash Sentry and his bottomless ass into the sun.

“Yes, unfortunately there isn't much I can do about that unless there was another alicorn,” she squeezed Twilight for emphasis. “Who wasn't related to me,” she leaned in closer whispering into Twilight’s ear. “Who was magically charged by consuming large amounts of potent alicorn seed from a young age,” she took a long unnecessary breath while Twilight gasped and held her own. “Who was patient enough to do so safely, with whom I could finally copulate with.”

“Are you saying ... that I can? That we could ... we will?” Twilight untangled herself from her mistresses’ legs and looked her dead in the eye with a hunger that Celestia could only describe as manic. “We can do it Princess? We can have sex? Like how normal ponies do?”

That stung the solar princess, but she tried not to show it. Although it was well known that she was well endowed and had a great many concubines to satisfy her, few knew the loneliness of never truly sharing that special moment that a normal mare and stallion could experience.

“It’s not like it's a bad thing, what we do,” Celestia let the tiniest amount of annoyance slip into her gaze, stopping the mare in her tracks. With that accomplished, she returned to her neutral expression.

“Yes, Twilight. We can have real sex now.”

Twilight’s wings pumped without her consent sending her floating above the bed spread, as she did a little happy dance in mid air. She kept muttering praise and thanks over and over, until she realized her princess was looking at her with amusement in her eyes. In an instant, her wings snapped back to her side and she landed with a soft flump against the pillows. Celestia put a hoof to her lips and giggled, amused by her pet’s enthusiasm.

Noticing Twilight was still blushing with that distant stare that meant her mind was running away with her again, Celestia placed a hoof on her shoulder. “But,” That dreadful word drew Twilight’s attention, forcing her to look her mistress in the eye. “If at any point it starts to feel painful or if it turns out you are not ready, we will stop immediately.”

Twilight pouted but admitted to herself that it was fair, for no matter how desperate she was to take her mistresses’ cock she wouldn't want for her goddess to lose a prized concubine. Twilight wrapped a hoof around the princesses’ cock that stood proudly against her stomach at full mast and planted a light kiss on the large head. “I promise, mistress.”

Celestia just smiled and ran a hoof through the younger alicorn mane, ruffling it slightly. “That's my favorite pet.”

They shared a smile for a moment before Twilight understood what it meant, accepting the unspoken command she leaned forward and waited. After a moment that was spent wondering if she misunderstood her mistress, she felt Celestia’s lips against her own. Warm, soft, twin extensions of heaven that came down to caress her own unworthy lips. She felt instantly at home, the relaxation she felt was like nothing she had ever experienced. Like laying down in a warm bed after a long day, her entire body released its tension and relaxed in the presence of its owner.

Twilight felt Celestia’s lips pressing more insistently against her own and she gathered her scattered thoughts and parted her lips, submitting to the older alicorn’s domination. Celestia’s lips spread her own wider, her hooves pulling Twilight’s smaller body in close. Twilight felt the massive cock of her mistress press against her from her hips to her chest, pulsing slightly as they kissed. Celestia’s tongue slipped into Twilight’s mouth igniting an explosion of sensations across the young alicorn. She had never shared this intimacy with Twilight in all her years. Every kiss chaste, every moment of intimacy short. It made her wonder sometimes if she was truly her favorite or if she just said that … but she knew her place and it was not one to question her mistress.

She allowed those thoughts to slowly disappear as Celestia’s tongue caressed her mouth in slow, long motions. Twilight let her body follow Celestia’s meandering pace. Each moment was longer than the last and she seemed to enjoy taking her time. But these moments were not boring in the slightest - it seemed to Twilight that with every flick of her tongue and every motion within her mouth, another part of her body felt as if it was caressed by her goddess’ love. Nerves flared and silenced under the sun goddesses ministrations and her pet twitched and danced under her immaculate touch.

Twilight moaned and only after several long minutes was she able to do anything more than simply follow the lead her mistress set. Unwilling to take the lead in the delicate dance their tongues traced within her, she took to guiding her hooves to where she knew Celestia liked. Two inches below her neck on the right side, Twilight’s touch is soft and gentle. Celestia’s slight twitch in her back left leg tells Twilight what she needs to know. Her hooves next found the sensitive spots just beneath where Celestia’s wings connect with her back. Twilight’s hooves are gentle for an inch, before they press and knead at the sensitive flesh before retreating just as quickly.

Celestia’s pained moan filled Twilight’s mouth and made her eyes flutter open. There in the early morning darkness, Celestia looked back at her with barely constrained lust. Twilight had been taking quite a risk with that particular spot, as a fellow concubine of Celestia’s had told her that it seems to turn Celestia on to such a degree that most concubine’s cannot keep up. But Twilight knew she could, she had taken hundreds if not thousands of Celestia’s loads and served faithfully since she was old enough to wrap her lips around Celestia’s cock. If there was anypony trained and hardy enough to be Celestia’s lover, it was her and only her.

She was ready, and more importantly Celestia was as well. Without speaking a word, Twilight lay face first against the bed and raised her dripping sex up, waiting for Celestia to take her. Twilight lay waiting, ready to be used as Celestia saw fit and to fuck her however she wanted - but what she wasn't ready for was for Celestia to speak up.

“Eager as ever, my little pet,” she giggled and pushed Twilight over, her wings flaring as she tried to catch herself. But celestia’s hoof was insistent and Twilight quickly gave in and let her body fall back to the the bed.

Twilight cocked a curious eye but the second Celestia stood up on the bed and rose to her full height, she took the unspoken command and spread her legs wide. Twilight licked her lips as she watched Celestia saunter over to her, the massive pillar of flesh between her legs slapping her stomach and legs with each step. Twilight’s hoof was tempted to move down to her dripping cunt and mash her clit at the sight of her mistress, but she restrained herself. Instead she looked Celestia in the eye and ran her tongue across her lips while her hoof traced itself slowly down her chest through her fur and across her massive bulging belly to brush against her ample breasts. Although she was no Fluttershy with her massive swinging teets, Twilight was still proud of her ample firm breasts that even now stood nearly straight up.

Celestia’s magic gripped her breasts tightly making a moan slip from Twilight’s lips before she could hold it back. The magic intensified around her nipples, gripping them tighter but not painfully so. The aura kneaded her tender flesh while twisting gently on her nipples. Twilight squirmed and bit down on her bottom lip to keep herself from calling out.

Celestia settled her weight back down on the bed with her head between Twilight’s splayed legs. She breathed deeply and smiled to herself all the while her magic continued its work on her lover’s breasts. Twilight looked down at her mistress questioningly, twisting her head to the side in order to see around her bulging, cum-filled stomach. “You don't have to dirty yourself mistress I am-”

A long lick from base all the way to the top of her well lubed pussy turned whatever she was about to say into a sudden squeal. Celestia seemed to roll the taste around her mouth for a second before swallowing audibly, making a blush surge to Twilight’s cheeks. “You are quite ready, my little pet, but that doesn't mean we can't enjoy ourselves more, hmm?”

“You shouldn't dirty yourself with such things, it's a concubine’s duty to-”

“To what, my little pet? Isn't it to do whatever I would command of her?”

Twilight squeaked and nodded.

“And what if I want to taste my delicious little pet before I mate with her and fill her with my seed?”

A million apologies swirled through her mind and tried to jump out of her mouth. However Celestia’s attention already shifted back down below her sloshing belly and back to her aching pussy. From the lingering look she shot at Twilight, what she had said was an order which Twilight would never in a million years disobey. With the worry and responsibility being lifted from her shoulders, it felt like her heart could not be any lighter. Celestia wanted her! She never did anything like this, not with anypony. Or at least not as far as she knew and she was pretty close to the other concubine’s in Celestia’s harem.

A giggle slipped from Twilight's lips as she felt Celestia’s cold nose brush across her folds. Making her belly jiggle as the copious litres of cum sloshed around inside her stomach. Her giggle morphed into a moan as the weight and heat of Celestia’s cum rushed to the forefront of her mind. With Celestia’s tongue slipping into her dripping sex, Twilight felt confidant that she could let a prideful smile spread across her face, hidden as it was behind her large belly. Twilight relished the feeling of fullness that washed over her almost more than Celestia’s delicate teasing. She was one of the few concubines in Celestia’s service that could take an entire load of hers and come back for seconds, and the youngest to be able to accomplish such a feat. Just thinking back to all those times where she was stuffed full of alicorn cum not having to eat for weeks on end made made her giddy. How many classes had she gone to with her distended stomach full of Celestia’s potent cum?

The gentle twist of her nipples made Twilight’s mind rush back to the now. Celestia seemed to realize this as she dove muzzle first into the mare’s flooded cunt. Twilight grabbed her stomach with one hoof so it didn't shake around too much while the other found itself in her mouth where she bit down on it slightly. It was all too much to take and the waves of pleasure she had been holding back since the moment she tasted Celestia’s cock came rushing back to her.

Frantically she shouted over the coming orgasm, her voice rising several octaves when Celestia’s long tongue pressed firmly against her g spot. “Can I cuuUum mistress?” Every ounce of willpower she could bring to bear was used to hold off the coming wave and she bit down on her hoof as hard as she dared.

Celestia gripped the entirety of Twilight’s delicate breasts and slipped her tongue out of the mare’s honey pot. “Only if you promise to release everything you have been holding back. You always were quite the squirter, little slut.”

Being called a slut was the last straw, Twilight’s hooves wrapped around her belly a second before her orgasm hit. “Oh mistress, oh sweet Celestia,” her words devolved into an indecipherable mess as her orgasm rolled over her.

Celestia meanwhile wrapped her mouth around Twilight’s mound, encompassing the smaller mare’s sex completely. A second later she felt the top of her mouth get sprayed with with a jet of mare cum. She hummed in approval while her cock twitched and ached between her legs. As the second jet of cum splashed against her mouth she extended her tongue into Twilight and thrust it in and out quickly.

The comfortable position that Twilight had managed to find as she rode her orgasm was shattered the instant she felt Celestia’s tongue piston in and out of her. Her hooves slipped from her belly to the mattress freeing her belly to shake and jiggle as her orgasm tapered off. All the while Celestia licked all around the inside of her fellow alicorn, exploring her depths and delicious taste in earnest. Her mood fell somewhat when Twilight finally finished cumming but the fact she had nearly filled Celestia’s mouth with her copious cum far outweighed that thought.

After a few long deep licks ensured that she had gathered every ounce of delicious nectar, she withdrew her tongue. Standing slightly she walked over Twilight who lay wide eyed all the while. Once she stood over the smaller alicorn she swallowed audibly several times.

“Oh, princess,” Twilight’s words failed her as she witnessed the sight of her mistress swallow so much of her cum with such ease.

“Ahh, you are most delicious, my pet. Maybe we should start doing this every morning.”

“Only if you let me suck your cock while you do so,” Her tone was firm, startling both alicorns. Before Twilight could say anything Celestia pressed a hoof to her lips.

“We have a deal,” she said as they both smiled, while Twilight inwardly squeed and Celestia betrayed only the slightest hint of emotion. This only made Twilight smile wider as she caught the subtle way her mentor’s mouth turned up.

Celestia placed her forehooves just under Twilight’s own and her back hooves behind and between Twilight’s. Forcing her back legs apart as she settled her weight down on the smaller alicorn, pinning her in place. “Are you comfortable, my pet?”

Twilight nodded silently, her brain occupied with thinking about Celestia’s engorged cock resting against her cum filled belly. Never mind that the rest of her mistress's’ body pressing against her own nearly made her squee aloud this time. Something about the closeness made her feel better then even the orgasm she had moments before.

Celestia finished shuffling her weight around so she could comfortably lay on the smaller mare. Suddenly, a stern look affixed the younger princess, easily piercing the gloom of the barely illuminated room. “Now, Twilight, I know we talked about this but you’re going to have to promise me that we will take it slowly.”

A yawn suddenly slipped past Twilight’s lips before she had a chance to stop it. “Oh i'm sorry princess, I just woke up really early this morning. It's not like I find you boring.”

Celestia’s said nothing, simply staring as she waited for the younger pony to respond. “Oh um yes, of course, I promise I won't push it and take it as slowly as you want. I am your toy after all and I would never disobey you, mistress,” Twilight could feel a gentle throb pulse between her legs, evidently Celestia had enjoyed that.

Her face displayed hardly any emotion at all, however Twilight knew better. The way her eyes seemed to soften meant she was relaxed and the fact she didn't bring it up again meant she was convinced. With that settled, the alicorn of the sun leaned forward, pressing her lips against her pet’s. They stayed that way for a few moments before Celestia drew back with a wide smile. “Good answer, I would dread hurting you,” the love and affection overflowing from her voice leaving Twilight speechless.

Twilight merely nodded her agreement as she noticed a slight twitch from Celestia’s cheek signalling she felt slightly awkward, so she quickly changed the subject. “I am ready for you to take me whenever you want, mistress. I don't think I could be any wetter,” she didn't laugh this time but her smile did that for her.

Celestia gave her one last short chaste kiss before she gripped her cock in her magic and gently guided it against Twilight’s dripping sex. Mere contact was more than enough to coat the entire head in a glistening sheen. Celestia let out a low sharp breath of anticipation. Twilight ran a hoof across the chest of her mistress, drawing her attention. “I will be okay, princess, I promise.”

Something passed before her mistress's’ eyes but after a second it seemed to pass and with it her trepidation. Nodding once, she gently pushed her hips forward - pressing her enormous head against the tight virgin entrance of her pet. Where it met harsh resistance, despite her gentle pushing, the massive head of her cock could not penetrate her tight entrance. Celestia looked down with despair in her eyes, unsure of what to do. “Please, mistress, I won't break so easily. Take your pet, use me,” the last words barely above a whisper but in the dead silence of the room it was loud with need.

Celestia smiled. “You always were the most eager of my concubines. I should never doubt your conviction.”

“Never, mistress,” was what Twilight was about to say, had not her said mistress gripped the bed and thrust forward hard enough to make the head of her cock slip inside and push her a good few inches up the bed.

Twilight bit her bottom lip hard enough to draw blood, and she closed her eyes, focusing her will to relax and accept her mistresses’ massive cock. After a few tense seconds she could feel herself relaxing.

“Should I pull out, are you hurt?” The genuine concern in the usually stoic princesses’ voice made Twilight’s guilt flare up.

She felt Celestia’s weight slip back slightly. Twilight threw her hoof out against Celestia’s chest stopping her in her tracks. “No please, just wait, I can do this,” the steel in her voice made Celestia pause.

A few seconds later Celestia could feel the vice around her cock slowly loosen, allowing her to breathe normally. Twilight’s breathing finally relaxed and she looked up at her mistress with hope in her eyes. “Ss-see?”

Celestia could see the determination in her eyes but also her pain which she felt as keen as if it were her own. She sighed, Twilight wouldn't give up and as much as it pained for her to admit she didn't want to give up either. She had not been able to have sex like this in over a thousand years and she craved to bottom out inside her pet.

“I have an idea. Do you trust me?” Twilight nodded immediately without a second thought. “Good, light your horn with a spell. Any spell will work so long as it doesn't use much power,” she asked. Noticing the younger alicorn’s horn was alight with power Celestia leaned down and touched it to her own horn.

A brief spark arced between them, then all at once Twilight felt nearly every muscle in her body relax. For a second she thought she was going to pee herself but thankfully those muscles weren't quite as relaxed as the rest of her. A low moan escaped her lips and she felt her body fall against the bed in utter relaxation.

The sudden change made Celestia’s hoof slip and in an effort to catch herself she shifted her hips forward and slipped several inches inside Twilight. Although she caught herself without falling any further the damage was done. Celestia’s eyes whipped back down to see if her favorite toy was hurt, however Twilight looked back with little more then mild annoyance mixed with a heavy dose of arousal. Glad that they were in a better position, Celestia slipped her weight down and settled back on top of her concubine.

With a content sigh she lay her head beside her student’s, attempting to emulate the relaxation Twilight felt. The haze of worry was still prevalent in Celestia’s mind and Twilight could feel her tense muscles pressed against her stomach. She reached a hoof around her princess and gently rubbed her back.

“Have I ever told you how happy you make me?” Twilight’s words came slurred slightly, still recovering from the forced relaxation.

“Only every time we have a private moment, my pet.”

Twilight pouted. “Well it's true you know.”

“I have no doubt of that, little one,” Twilight stopped pouting and seemed to consider Celestia’s words. Celestia meanwhile slowly ground her hips in closer, sliding a few more inches of her massive alicorn cock deeper into her pet.

Twilight squirmed and her hooves grasped at the solar princess until long after she stopped moving.

Settling back into a comfortable spot Celestia glanced at Twilight who appeared deep in thought. “A bit for your thoughts, my dear? Am I not enough to focus on that you must imagine somepony else?”

Twilight shook her head and although the words stung she had heard them before. Although Celestia did not ban her concubines from taking other lovers, it was well known that her favorites didn't remain in her service long after they had taken another lover. Celestia denied it of course, but the stoic princess was an open book in Twilight’s capable hooves.

“You are the only pony I could ever need, mistress,” taking Celestia's chin in her hoof she tilted it up until they met eye to eye. “You know that.”

Celestia took Twilight’s hoof in her own and held it a moment before giving it a gentle squeeze and letting it fall back to the bed. “I know, can you forgive an old mare?”

Before Twilight could answer, Celestia could feel her toy’s pussy loosen enough for her to move once more. Lifting her back legs she shuffled her hips forward a few more inches until she felt it too tight to continue. Twilight let out a moan addled with the slight pain that came with Celestia’s huge cock slipping deeper into her now less than virgin hole.

Once she gathered her bearings once more, Twilight looked back into Celestia’s eyes. Despite the darkness that only a single candle failed to fully illuminate, she found the twin pink orbs of her lover in a heartbeat. “Of course I can,” she bit her lip and held back, almost saying something she would regret. After a moment's more hesitation she spoke it anyway. “If you can forgive me that is.”

Celestia let out a small breath. “Whatever do you mean? You are the most faithful student, and most devout of lovers. Whatever could there be to forgive?”

“I-I.” Twilight bit her lip again, the repetitive action beginning to wear on the bruised flesh. She felt the mixed emotions within Celestia, guilt, paranoia. She had to cut this off quickly and just admit it. “Could you forgive me for… loving you?”

Celestia relaxed instantly, the flood of emotions leaving her behind to try and figure out what to say. Without direction she returned to a stock response she didn't even think of before she spoke. “All my little ponies love me, of course I forgive you.”

Twilight wiggled her hips, slipping a little more of Celestia’s cock inside her. “I know you haven’t given your heart to another pony in a long time and that's okay if you don't return my feelings, I just wanted you to know how much I love you.”

Celestia made a face Twilight could only describe as odd. It looked like genuine concern, love, and annoyance rolled into a single expression. After a fitful second the princess just laughed.

“What's so-” an alabaster hoof kept her mouth closed.

After a few more seconds of laughter the princess of the sun just smiled. “I have had many ponies confess their feelings to me but never while we are in the middle of making love.”

Twilight’s face became two shades brighter and she brought a hoof to her face. “Fine, I forgive you for that but only if,” Celestia held a hoof above her head dramatically. “You forgive me for loving you back.”

Celestia looked down expecting a cute expression however all that was there was annoyance. “Kiss me already,.” Twilight demanded.

She had no choice but to obey, for the first time in their relationship the roles were reversed, if only for a moment. After a long and gentle embrace they parted, gasping for breath. Twilight put a hoof to her head. “Wow, you’re a good kisser. I mean you're the only pony I have ever kissed, but wow.”

Celestia merely smiled and wiggled her hips, drawing both of their intention down to her stomach. Bulging as it was from Celestia’s previous load, a distinct outline could be seen in the shape of Celestia’s cock. Twilight poked it with a hoof. “That shouldn't be possible,” she poked it again, it was nearly in her rib cage. “How?”

Celestia pressed the last few inches of her cock inside, easily slipping into the younger alicorn’s womb with surprising ease. Her heavy balls pressed against twilight’s drooling pussy. If that wasn't enough she could feel Celestia’s head slowly flare within her womb, locking them together. The moan that had come from her mouth lasted a full minute without pause, finally petered out and only with the flash of an energize spell was she able to keep herself from falling asleep in the haze of post coital bliss. Twilight decided then and there that this was far more pleasure than anypony was designed to experience in their lifetime.

“Are you alright, Twilight?” Twilight’s slight nod eased Celestia’s beating heart and allowed her to once more relax on top of her favored pet. “And to answer how, well you're an alicorn female - you’re designed for this to happen … while I must admit I helped the process along by feeding you a steady diet of cum since you first caught my eye the day you earned your cutie mark. It's mostly your new biology doing the heavy lifting.”

Twilight mulled it over and although she had always assumed drinking and eating nothing but alicorn cum for almost two decades would have side effects, she didn't think it would be this. “Ooooh, my gosh,” a ripple of pleasure reminded Twilight that there was a three and a half foot long cock still buried inside of her.

And yet still a yawn escaped her lips. She was trapped between her intense desire to please her mistress and the tug of slumber. Celestia seemed to pick up on this immediately. “Do not worry, my dear Twilight, sleep now and worry not. Alicorn mating can last days.”

The thought alone nearly made the young alicorn cum, but a third yawn escaped her lips and drowned that thought out. “Are you sure? Are you going to pull out?” The words were said with such sorrow that Celestia responded instantly.

“No no, I couldn't even if I wanted to,” Celestia laid her head down next to her mate and let her weight settle completely. Which surprised twilight as she was lighter than anticipated. Tugging a blanket over them and banishing the mess they had made earlier, between Twilight’s copious cum and their combined perspiration to the moon Celestia relaxed completely. “Besides, a little sleep would do us good. Are you comfortable?”

Twilight moved her head left and right trying to find a spot to work the kink out of her neck but a pillow slipping behind her head laid that thought to rest. “Thank you, mistress.”

Celestia looked Twilight up and down and fidgeted with a few feathers the alicorn could see were out of place, before giving up and laying back down.

“Just one little question. How can i even fall asleep? I mean your still inside me.”

Celestia rolled her eyes, thankful that Twilight couldn't see her face. “When I said we alicorns mate for days, I wasn't joking. Although the exact nature of our physiology is unknown, what I do know is that that this is completely safe and is a particular favorite of mine”

Although Twilight clearly had more questions, another pesky yawn banished those thoughts as well. Instead she merely mulled them over and admitted defeat. If it was Celestia’s favorite part then that was good enough for her. “Good night, mistress.”

“Good night, my pet.”

Author's Note

A special thanks to Dio and his partner in crime (link to be added shortly)

... Now thoroughly enjoyed.

Twilight shivered and attempted to roll over but the bottom half of her body did not follow the commands her brain sent. Confused and still half asleep she looked down to figure out what the problem was. The moment her eyes opened however, she remembered the previous night and realized the sensation she was feeling was Celestia’s still massive cock wedged inside her. A blush rushed to her face as she saw how big her belly had gotten. She poked the massive cum filled organ with a hoof and watched it shift and slosh around.

“I’m sorry dear, did i wake you?” Twilight turned or at least tried to face Celestia. Realizing that was impossible she looked over her shoulder to see Celestia’s magic providing the illumination she thought was from the sun.

Twilight shook her head. “Just cold,” she shivered again and scooched her body closer to the larger alicorn who in turn wrapped her legs around her. Apparently the blanket had vanished somewhere during the night.

Celestia was surprisingly warm despite the door to the balcony being open, letting the cool morning breeze in, a fact that Twilight enjoyed immensely as she nestled in as close as she could get. Celestia moaned softly as the movement was enough to remind them both of the fact that they were still locked together for the time being. Twilight smirked and ground her hips down, shifting and moving the huge cock still resting inside her. Her moans intertwined with her lover’s, drawing the attention of more than a few passing guards.

An alabaster hoof pressed firmly against Twilight’s mid section ceased her teasing. “Be still for a moment.”

Twilight frowned and did as she was told. After a few moments, Celestia’s magic slowly faded and she breathed a sigh of relief. “Raising the sun may be second nature but i think you just made me raise the sun a few seconds early.”

“I am so sorry, princess, i was just…” her excuse died off as she noted Celestia’s relaxed muscles. “I should apologize to Luna, i wouldn't want her to think that something malicious had happened, especially so soon after her return.”

“Oh she will be by shortly, my dear, you can tell her then. In the meantime though i'm sure you have a few questions and i need a moment to recuperate for that matter.”

Quill and parchment appeared from nowhere, summoned forth seemingly by Twilight’s unbridled curiosity forcing the universe to bend to her will. Celestia cocked her head, noting the fact that it didn't seem as though Twilight even used magic at all to summon the writing implements. Celestia prodded Twilight with a hoof. “Ask away, my pet.”

Taking the hint to stop worrying and start asking, Twilight cleared her throat. “My first question would have to be, how long does alicorn mating usually last compared to the average pony?”

“Well as you know pegasie mate the shortest, their mid air courtship rituals have fallen out of favor the past few hundred years but their short mating periods are remnants of those old rituals. Unicorns as you know you know are in the middle of the spectrum of mortal ponies, although many have forgotten or lost the unicorn kamasutra. Which is a crying shame, as to make love like the unicorns of old was ...” A shiver ran up Celestia’s spine, drawing a moan from the other princess currently on Celestia’s dick. Her magic flickering as she made notes despite the sudden rush of pleasure.

“You get the point, their finely tuned nerves necessary for casting magic make them have somewhat of a hair trigger. Lastly are earth ponies, as you have no doubt guessed my astute pet-” her said pet shivering in delight at the comment, making sure not to ruin her notes while she did so. “-they last the longest due to their hardiness and connection to nature. I am sure you will find this interesting but earth ponies have the oldest religion in equestria based around a fertility goddess.”

Leaping at the opportunity to speak between Celestia’s thoughts, Twilight politely cleared her throat and continued only after she was sure she was not interrupting. “Is there a reason you are giving me this much background information?”

Twilight felt the telltale twitch in Celestia’s cheek signifying her awkwardness. “Well, Twilight, for one thing raising the sun is more taxing than you might think. Sol isn't a morning being, ironically,” Celestia snorted in irritation. “And you should know by now what I’m like when I give you your special, private lessons.”

Twilight blushed and nodded. “Sorry to interupt, please go on.”

“Well as you know we are the embodiment of all three tribes, however this doesn't translate to our biology, oddly enough. Before you ask, i don't know why and my own experiments have been limited to myself, and such a small sample size does not a good study make,” both princesses shared a giggle before Celestia continued. “From my understanding, ancient alicorns ruled mixed tribes and ruthlessly fought amongst each other for dominance. I won't go into anymore detail but suffice it to say that the rule shared by Luna and myself was a break from the norm, as standard the affair back then was to fight the other potential ruler to the death. Or take them as a brood wife.”

Celestia shook her head, her mood souring slightly. “As you have no doubt noticed, Luna defers to me despite us being officially equal and although i have tried to mend this it always seems to crop back up later. Her thoughts are that since i am the eldest that she should defer naturally to me,” Celestia brought a hoof to her lips stopping her train of thought. “My apologies but i am rambling again. Ahem, as you can tell we alicorns subconsciously submit to a stronger alicorn usually - but not always - based on age,” Celestia looked out the window suddenly caught up in a thought.

Twilight furiously took a few more lines of notation before gently squeezing the white leg that lay draped over her. “I must ask you, Twilight, did you purposefully usurp Cadence to take her position within our hierarchy?”

“I uh, what?”

“Ahh, so you did so subconsciously. Interesting…”

“I did what?” Panic clear in Twilight’s voice.

“Don't worry about it, Twilight, i can feel my strength returning so we will wrap this lesson up here. As I mentioned, alicorns seem biologically predisposed to struggles for domination and this spills over into love making as well, I’m afraid. The long time it takes for the ‘male’ to finish as well as the female’s resilience are a result of this constant battle for domination and submission,” Celestia relaxed slightly, her voice shifting out of the one she normally only used during lectures. “Any questions?”

“Um, no, your highness,” Twilight’s pen worked furiously, filling another page before turning to the next and renewing its mad pace for nearly the entirety of the next. All the while Celestia began to tense up slightly, evidently feeling a little forgotten about although she did not air this feeling.

Her notes finished, Twilight nearly yelped when she leaned back against her lover only to find some Celestia’s muscles tense. “Oh, mistress, I’m sorry, I wasn't thinking,” Twilight slowly pushed herself down against the cock still buried inside of her grinding herself against the larger alicorn’s crotch. All the while withdrawing her grasp on the legs encircling her, holding her own tight to her chest making herself smaller.

Celestia’s tension slowly melted away, however only doing so completely when she felt her pet kiss up and down her exposed neck. Each kiss was a mere peck, soft and quick, as she reaffirmed her place beneath Celestia. Finally relaxed once more, Celestia held her pet tightly and hummed her approval.

“Good morning, Tia, lady Twilight,” both alicorn’s looked over to the balcony in front of them where Luna stood smiling. Shaking off the morning dew, she yawned exaggeratedly.

Twilight’s body tensed up and shame burnt across her face, unsure of what to do. She waited for Celestia to say or do something. When Celestia’s hips thrusted up into her she buried her face in her hooves and moaned softly.

“Good morning dear sister, we must apologize for shortening your night a tiny bit. This one did not make concentration an easy thing to do.” Celestia thrust powerfully at the end of her sentence making Twilight squeak suddenly.

Luna’s laugh though genuine, was marred by exhaustion and she looked down at the floor shifting from hoof to hoof. Celestia rolled her eyes. “Do come in, dear sister.” As her sister walked in, Celestia picked up Twilight’s back left leg allowing her to thrust harder into her pet’s sopping wet cunt. “How was your night?”

Luna’s initial confidence waned somewhat and she seemed to want to say something however found herself staring at Twilight’s massive cum filled stomach that shook with each deep, powerful thrust. Swallowing to force herself to focus she spoke in a trembling tone that quickly filled with confidence. “It was interesting … but we will talk more about that later, when you are not indisposed.”

Twilight found her curiosity overpowering her shame and she looked up at Luna in an attempt to figure out the source of the older alicorn’s trepidation. However all she found was a strange musty smell assaulting her nose. It was of rain and burnt ozone found after a lightning strike. It was a strange turn from Celestia’s soft flowery smell she seemed to ooze at all times. She was so captivated in her thoughts that she didn't notice Luna getting closer.

Celestia slowed her thrusts and eyed her sister curiously. “Do you need something else, little sister?”

Luna cleared her throat and straightened her posture before speaking. “I would like to use your concubine at the earliest convenience.”

Twilight froze. It wasn't that crazy of a request, one she would fulfill if Celestia willed it. Something told her it was not her place to speak now, so she merely studied the moon princess closely. Noting her powerful aroma and the drooping cock hanging between her back legs. It was far smaller than Celestia’s, and dripped a small but steady stream of precum. Twilight unconsciously licked her lips and made a note to ask about why Luna’s endowments were so much smaller than her sister’s.

Celestia’s lips curled into a snarl. “Maybe sometime in the future,” and from her curt tone and use of the term ‘little sister’ instead of ‘dear sister' it was clear to Twilight that Celestia was reasserting herself. She felt small and insignificant as both alicorn’s stared each other down. After a few tense seconds, Luna lowered her head and stepped back. Celestia’s dismissive snort allowed Luna’s head to rise.

Twilight desperately wished she could take more notes. Luna bowed slightly and moved to leave. “If that's what you wish, Tia,” as an afterthought she stopped in the doorway to the hall. “Just don't forget to open court for your replacement.”

“What do you... oh pony feathers,” Celestia cursed and mumbled still worse ones under her breath.

Luna giggled and left the room quickly, calling down the hall as she ran. “Sorry I can't help, I’m just too tired. Good morning, sister!” she exclaimed, her voice fading into the distance as she ran down the hall.

“That cheeky little,” Celestia laughed deeply. Slowly it petered away leaving her shaking her head. “Well i guess we will have to go open court today since my dear sister is already no doubt locked in her room, asleep.”

“Wait a second do you mean we- eep!” Twilight’s question turned into a squeal as suddenly Celestia stood up, carrying Twilight with her. “What are you … ?”

Twilight’s body was encased with the glowing aura of Celestia’s magic making her squirm. To be touched with her magic was like a being caressed by the soft light of the mid afternoon sun. Warm and relaxing, it reminded Twilight of laying in the sun with a good book. She became instantly thankful that such relaxing thoughts came to her mind as Celestia was apparently not finished. Gripping her pet tighter, Celestia twisted the smaller mare around until the two were facing each other. Twilight squirmed and was barely able to tuck in her legs so as to avoid hitting Celestia as she suddenly found her muzzle inches from her mistresses’.

Twilight’s legs instinctively wrapped around Celestia’s barrel, holding them close. All the while the cock resting firmly inside of her shifted and moved, causing both mares to moan in pleasure. Celestia’s magic held them firmly together while it split and grabbed the blanket from her bed and wrapped it about them both. With the blanket tied firmly, Celestia cast a simple spell to make sure the knot wouldn't come undone and looked down at her hoof work. Twilight rested securely against her barrel, her upside down face twisted in ecstasy as her body shook.

“Comfortable?” Celestia’s voice was thick with arousal and a hint of determination.

Twilight nodded, her stomach groaning slightly as it's distended mass was squished against Celestia’s stomach.

Celestia trotted around the room doing a quick circle. Twilight could do nothing but push her face into the neck of her mistress and bite back the waves of pleasure assaulting her mind. The enormous cock firmly wedged inside of her shifted dramatically with each step hitting another part of her abused pussy. Celestia nodded in approval and before Twilight could regain her senses she found herself being carried into the hall to the sight of two very amused guards.

“Wonderful morning, your highness.”

“Off to open court, your highness?” The second guard who looked far younger than his counterpart cocked a curious eyebrow at the odd sight the two tied together mares made.

“Yes we are. Day off or not it seems,” with a curt nod Celestia cantered down the hall, hardly noticing the twin salutes of her guards.

Twilight meanwhile had her face buried in her mistresses’ neck hoping to not attract any undue attention the already strange sight might bring. Celestia seemed nonplussed by the entire thing and walked around as if it was business as usual despite the fact that her cock was buried inside a mare currently tied to her barrel in broad daylight.

On the way down to court they passed the usual assortment of castle staff. Guards nodded greeting, maids bowed low and concubines not currently in the harem gawked and silently burned with envy. Twilight would have usually basked in the attention as those mares and few stallion were for the most part a jealous lot and she enjoyed the fact that she was Celestia’s favorite immensely. Just as they rounded the final bend and with the courtroom door visible at the end of the hall, a familiar pair of ponies walked in from an adjoining hall.

Twilight shrunk and silently wished she could become invisible but that's not what Celestia wanted so she reasoned she would just have to deal with the embarrassment that facing Rarity and her own mother would bring. Celestia was silent throughout the entire walk save for a few polite greetings - although this initially worried Twilight immensely. It was as if she had done something wrong, there was something about the way she walked and moved that told Twilight she was biting her lip and trying to hold back. While she distracted herself by analyzing her teacher, she heard the calm voice of her mother break those thoughts.

“Hello, your Highness, i hope my Twilight has been treating you well,” her tone was even and calm but anyone who knew her well could hear the pride barely hidden behind the polite voice.

“She is the perfect cocksleeve, Velvet, you should be proud,” Celestia’s words aroused Twilight and filled with shame in equal measure.

She shrank closer and ground her face into her mistress's’ neck, hoping to hide in her fur. “What brings you to the castle so early?”

Although her voice was polite, everypony knew better than to tary on politeness when commanded directly by the princess. Rarity stepped forward first, speaking a bit too quickly before she reigned in her nerves. “I am here because I was joining Pinkie Pie at court before I intended to spend the rest of the day at my boutique here in Canterlot. However, after I met this dashing young mare on the street and I’m afraid we got terribly carried away in our conversation.”

Twilight Velvet shrugged. “I was hoping to get a new dress for a dinner party later tonight that I’d forgotten about, when I happened upon Rarity. I knew that the stars had aligned.”

Celestia considered them both quietly, putting on an air as if they were being analyzed and studied. In reality she was merely holding back a laugh as she noticed that the similarities between mother and daughter were more than skin deep. How many times had she had to calm Twilight down after she’d forgotten about something after her studies had caused time to slip between her hooves.

Celestia’s chuckle dispelled the air of tension she had created moments before. “Sounds like fate favors you today. Be daring, they say,” Celestia’s wink made Twilight Velvet’s cheeks flush at the sight. “We shouldn't tarry long I’m afraid, lady Velvet, lady Rarity,” Celestia nodded at them both in turn.

Twilight silently thanked her mentor for saving her from further embarrassment, only for Rarity to ruin that. “Oh, darling, when will you be back in Ponyville?”

Twilight’s voice was so tiny from embarrassment and speaking into Celestia’s neck that she might have been able to beat Fluttershy in the quiet game.

“I didn't catch that, what did you say?” asked Rarity.

“By Tuesday.”

“Well, when you are back be sure to come see me as soon as possible!”

All the while Twilight hid her face against Celestia’s neck, her legs squeezing her mistress tighter as her embarrassment mounted. Celestia mercifully turned away and strode towards the court doors fending off any continued attempts at conversation by the talkative fashionista. “Thank you.”

Twilight’s muffled voice was inaudible to everypony other than the one it was meant for, who merely smiled and nuzzled the smaller mare as much as the awkward position allowed. As the pair waited for their arrival to be announced and the guards to open the doors for them, Celestia leaned down and whispered. “Do not be so scared, my pet, have we not done something similar before?”

Twilight blushed and hid her face further, her mind forced into reliving all the times Celestia had commanded Twilight to service her while in the middle of court. Or in a side room during a recess, or during the middle of a speech. By the time the doors creaked open to reveal the throne room itself Twilight had to admit to herself that she had loved all those times - this time was just a little more strange than usual.

Right when Twilight concluded that she had a handle on the strange state of affairs she found herself in, and was once more enjoying herself, her reverie was dashed the moment she heard Pinkie Pie shout “Hi, Princess Celestia! Hi, Twilight! Nice cock sock, your majesty.”

“Why thank you, Pinkie Pie, are you all ready for your day in court?”

“You betcha, princess!”

“Wait, what? You can't be serious, mistress! Pinkie pie is ...?” Twilight gaped as she turned an upside down look at the pink mare who was not only serving in court today but actually donned the golden throne and sat there quite contentedly. Twilight’s mouth opened and closed like a fish gasping for breath.

Celestia didn't seem to notice and strode confidently across the courtroom to stand beside the throne, positively beaming in pride. The gathered ponies of court all looked on in equal parts awe and confusion. Twilight’s brain still reeling from the news making her unable to do anything other than gape.

“I would like to thank my little ponies for gathering here today for a very special day court. First off, i would like to assuage any fears you may have,” Twilight noticed this part of Celestia’s speech seemed aimed at her. “Only matters concerning parties have been lined up today, as all other matters have been handled by the night court,” Twilight and a considerable amount of the gathered nobles let out a sigh of relief. “Without further ado, I officially hoof over temporary ownership of the throne to lady Pinkie Pie,” Celestia nodded her head at the party pony who grinned from ear to ear and saluted proudly.

Before Celestia turned to leave, she made brief eye contact with a non descript noble Twilight didn't seem to remember. The princess and her cock sock left before the nobles had even a chance to begin whispering amongst themselves, saving Twilight some embarrassment. As soon as the heavy doors closed behind them, Twilight grabbed her princesses’ head and forced her to look down. “Are you sure about this, mistress? Pinkie pie isn't exactly…”

“She's exactly what I need,” replied Celestia. Before Twilight could even begin to ask her to explain, she found the two of them being carried through a servant's door and down the less populated and more narrow halls used exclusively by the castle staff. Celestia’s tense muscles robbing Twilight of the ability to speak for fear that what she said would be out of place.

Once out of earshot of most ponies, Celestia cleared her throat. “I must admit something to you, Twilight. I am not exactly the best with parties,” she whispered. Twilight cocked her head, confused. “This may sound strange coming from me, but I’m not exactly the most social of ponies.”

Twilight gasped - Celestia’s ability to speak in front of a crowd in addition to writing amazing speeches were the stuff of legend. As if reading her mind, Celestia looked down at the mare who she was using as a cum dump. “Speaking in public is easy as it's a simple matter of looking up over the gathered ponies and speaking to the horizon. Luna always handled this type of thing, but now it seems as though in her brief time back in equestria she has garnered a reputation for being a loner,” Celestia snorted. “Which couldn't be further from the truth. That’s exactly why I got our good friend Pinkie to take over.”

Twilight mulled this over and was forced to admit that her plan held merit, despite the fact that it still included making Pinkie Pie a regent of Equestria. Had the mere idea been presented by anypony else, it would have reduced her to tears, though whether it would have been due to laughing or crying Twilight wasn't so sure. Sighing inwardly, Twilight admitted defeat and placed her hooves back around the barrel of her mistress.

Walking in silence, Celestia smiled widely the entire time. Only after Twilight heard the sound of cutlery did she even think of asking where Celestia was taking her. “Is that ... the kitchen?” Stuffed full of potent alicorn cum in her womb and stomach, Twilight wouldn't be hungry for days but something about the chance of chef Ram Seed’s cooking was not an opportunity she could refuse.

Twilight groaned as her legs were beginning to feel numb. Celestia seemed to pick up on her distress and double timed it past the castle personnel in order to pop her head into the kitchen. Once inside she snagged an enormous piece of a passing cake, the attendant carrying it was shocked and looked like he was about to say something. But Celestia pressed a hoof to her lips and disappeared back out through the door. The attendant merely looked around for a second to see if anyone else saw what he had. Noticing that no other pony had seen it, he merely shrugged and kept going as if nothing had happened. With her prize in tow, Celestia and her cock warmer quickly ascended a set of hidden stairs in order to get back onto the floor with their rooms, only for a strange voice to call out from behind them.

“Not running away from me are you Celestia?” Celestia rolled her eyes and Twilight grimaced, they knew that voice anywhere.

Turning around reluctantly they both met the amused glance of Chrysalis who had stuffed a muffin into her fanged mouth. Celestia sighed inwardly and put on her mask of politeness. “Funny meeting you here Chrysalis.”

The changeling snorted and quickly swallowed what was left of her food. “It certainly is, isn't it?” The changeling and the princess of the sun exchanged an odd look that left Twilight confused. “But I might as well take advantage of this bit of serendipity so i may have the chance to properly thank your cock warmer for all her help.”

Chrysalis’ genuine smile disarmed Twilight of some of her mounting ire, which disappeared entirely when her pride in servicing her princess bubbled to the surface. “You’re welcome Chrysalis. I was more than happy to help any allies of Equestria,” her prideful smile marred somewhat by it being upside down.

“Oh no, you misunderstand me. Tokens of appreciation from a changeling always take a physical component as such I present to you a boon in the form of a spell that I would like your permission to cast upon you,” the changeling queen’s tone was honey-sweet and although Twilight was sceptical, she doubted she sensed sincerity in Chrysalis’ voice.

“What does it do, exactly? Princess, is this allowed?”

The sun princess seemed to roll the idea around for a few seconds, shifting her hooves and Twilight from hoof to hoof. “I don't see why not. Chrysalis is an ally after all, I'm sure she would never do anything to endanger a friend,” she finished the sentence with an icy tone and equally icy glare leveled at the changeling, who - despite what she would claim later - was genuinely intimidated even for but a moment.

“Of course not,” Chrysalis scoffed.

“Then you may cast your boon upon my cock sock,” she said, as the pride that welled in her voice made the shame burn from Twilight’s face.

The changeling smirked at the description and lit her horn. After a few seconds gathering power, she leaned forward and touched it to the space between Twilight’s eyes. This required her to bend in an awkward angle and was only made possible by changeling flexibility. The instant Twilight felt the horn touch her forehead a rush of power ran through her like a jolt of electricity. Only where real electricity flowed from one point to the ground this seemed alive in it's intent. It lingered on her eyes, burned along her spine and seemed to sit momentarily at her breasts and pussy before disappearing.

With practice garnered over centuries, Celestia held back a moan as the writhing mare impaled on her cock twisted and turned. Twilight had no such experience. “Oh, Celestia, Aaaa,” she groaned, as the pleasure twisted and changed. She dragged out Celestia longer and longer until she realized the state she had been reduced to and quickly closed her mouth. The cock lodge inside her stopped twitching a moment later allowing Twilight to think.

“You ponies are not nearly as prudish as we thought,” observed Chrysalis. When both mares who were currently copulating in broad daylight turned back to the changeling queen, they saw a rare blush across her face. A moment later it was gone but both observers couldn't help but realize that they seen a rare sight.

“Now, if you'll excuse me, I was hoping to gorge myself on the ambient love but I seem to be full already,” Chrysalis continued. The changeling pressed a hoof to her lips, a wisp of green smoke rising from within.

Not waiting for either mares to respond, the queen simply turned and left, holding her stomach with one hoof. Twilight turned up to her lover. “Did she look a little … full to you?”

Celestia tapped her chin and smiled. “She was positively full to bursting.”

Twilight squinted, making out the changeling queen as she squeezed past a servant at the end of the hall. Her large distended belly making this act difficult, forcing another belch from the changeling’s lips.

Both mares turned to each other and giggled quietly at the silliness of it all. The faint wisp of hunger that Twilight had felt when she realized that she’d had the chance to taste the much lauded chef’s cooking had disappeared. The only thing currently on her mind was Celestia.

Celestia looked down at her concubine with a strange look in her eye the second they stopped giggling. Twilight couldn't place the odd feeling that burned in her breast but a moment later she didn't have to give it any further thought, as the pink lipstick-covered lips of her mistress gently pressed against her own. Suddenly she was lost in an ocean of pleasure as Celestia’s hips pressed forward slightly grinding against her own. Twilight could do little but grip her mistresses’ barrel and hold on. Parting her lips when Celestia’s insistent tongue overcame her meager resistance.

For a while that's where they stayed, locked together in the middle of the hall. Servants passing by, most not even batting an eye at the strange pair fucking in the middle of the hall. Celestia pressed her tongue deeper, holding Twilight's tongue down as she her hips ground harder making the poor mare - already lost in pleasure - moan in ecstasy, her mind little more then swirl of lust and devotion.

After a few minutes passed, Twilight could feel her mind finally clear enough to form a coherent thought that didn't begin or end in how much she loved her mistress. Smiling stupidly her tongue roamed around her mouth looking for Celestia’s, but coming up empty. She looked up at Celestia who was merely looked forward. All around her she could see ponies pass by, catching glimpses of the sky as they passed windows in the hall..

Dimly aware of the distance traversed, the only thing on Twilight’s mind was the cock resting in her womb. It was all that mattered, she reminded herself. The only thing in the world worthy of her attention other than the rest of Celestia. Whilst inwardly giggling, she managed a frown. Celestia’s graceful gait ensured she was hardly ever jostled even though she lay between all four of her legs. Twilight’s frown deepened as she realized how little she had attempted to ensure Celestia was properly pleasured, and in that moment she forgot Celestia’s desire to hold back until they were alone once more and begun to thrust back against the penis resting so deeply within her.

She felt Celestia’s chest muscles tighten somewhat and - misinterpreting that as a move to keep going - Twilight did just that. Clenching her inner muscles and gripping the larger alicorn tighter, Twilight rocked back and forth, working the huge shaft inside her until she could feel Celestia’s walk become slightly more awkward. Burying her face in Celestia’s neck Twilight took a deep breath, catching the alicorn’s scent and moaned loudly, forgetting the presence of the other ponies entirely.

Twilight heard somepony speak, but it hardly mattered. Listening didn't have anything to do with pleasuring the cock she loved more than anything. Her legs tightened and she swung herself back and forth violently, the thin fabric holding them together drawing loose under the alicorn’s furious thrusting. Twilight slowed her pace, panting and moaning as she ground her hips down. Feeling the massive cock head press against the back of her womb brought a fresh moan to her lips. Moments later she could feel herself cumming, taking all of her willpower to not thrash around. She gripped Celestia’s barrel tighter and pressed her lips against her mistresses’ neck over and over again.

When her orgasm finally died down, she noticed they were no longer moving. She shrugged to herself and started to work her inner muscles once more, only to feel an aura of magic suddenly overtake her. Her thrashing did little to dampen the magic that surrounded her. Slowly she felt herself being removed from the cock she so desperately craved. A pathetic whimper escaped her lips as her hooves reached out, trying to pull her closer.

Slow as to very nearly feel cruel, she felt Celestia’s perfect dick escape her until with a resounding pop she felt it finally slip free from her cunt. “No, please goddess above, don't take it out,” whimpered Twilight pathetically. She fought against the aura frantically, desperation pouring onto strength that she didn't realize she had.

“Twilight, calm down,” her mistress commanded. Celestia’s voice was firm and absolute, but the smaller alicorn still pawed at the floor and whimpered. Rolling her eyes Celestia lifted her hoof and lightly smacked the smaller alicorn across the face.

All at once Twilight stopped her mewling and placed a hoof to her cheek in shock. Suddenly realizing what had happened she looked up at Celestia with tears in her eyes. She tried to say something but the tears came faster then her thoughts could. Celestia’s calm and forgiving tone rescued her from the tears about to cascade down her cheeks. “Shhh, Twilight, it's okay. It was just Chrysalis’ spell. It was a little too much for you,” she said, as she leaned down, her hoof reaching forward and carressing the smaller alicorn’s cheek. “It's okay.”

Swallowing hard and wiping away her tears, Twilight choked down her sadness and looked back up at her mistress. “What happened?”

Celestia’s serene and smiling face was marred with concern, making a fresh wave of concern rise within her pet. “You got a little overwhelmed and made for an interesting walk back to our room,” responded Celestia. Her soft and gentle smile worked wonders on Twilight’s sadness.

Twilight’s eyes could no longer hold the gaze of her mistress, shame burning across her face. “But I came without permission and … and ... and,” she stumbled. Celestia’s hoof stopped her train of thought before she could start crying again, gently running across Twilight’s chin.

“Yes you did, and you are partially forgiven. I will punish you accordingly in a moment, my dear pet,” she suggestively mentioned. Celestia’s honeyed words and gentle tone made a shiver run down Twilight’s spine despite the fact she had displeased the only pony she could ever love.

Sighing softly, Twilight took a deep breath and steadied her internal turmoil. “Yes, mistress. What would you have me do?”

“Rise little one and go put on the clothes and makeup i have set out for you.”

Twilight rose obediently and picked up the clothes that sat on the bed without looking, and scooping up the makeup in her magic while she trotted into the attached bathroom. Celestia closed the door behind Twilight using her magic.

Once alone, Twilight stood there staring at the cold floor while a mascara stained tear ran down her face. I really fucked up this time, didn't I? Desperation flooded her mind and for a moment she stood there breathing hard and trying not to panic. Slowly subduing those thoughts she stood up with determination in her breast. Celestia gave me an order, I can beat myself up later. She looked into the mirror and grimaced. Her eyeliner had formed long blackish lines down her face, carried by her tears. Her lipstick hadn’t fared any better and was almost completely gone.

Frowning to herself, she wiped it all away with her magic and turned to the bundle of makeup which she grabbed without looking. The usual black lipstick was there but also a few other hues and colors. Twilight gasped and barely resisted the urge to do a little dance, the amount of time and effort her mistress had put into the little package striking the young mare.

She put the rest of the makeup aside, quickly turning her attention to the clothes she hadn't checked out yet. They looked like a bundle of black lace on the ground. After she picked it up in her magic, she blushed so large that it covered her face. There were stockings that covered her legs from hoof to hip but also a lacey vest-like thing that would stretch across her barrel. Putting it on quickly, she turned to the last object which looked like a veil of some kind. It matched the rest of the black lace perfectly. Putting it aside to put on last, she grabbed all of her makeup once more and turned to look at her reflection. I will look perfect for Celestia. With thoughts of her mistress fresh in her mind, she went about applying the makeup exactly how she knew Celestia liked.

In the other room Celestia frowned and shifted her weight around on the bed. Everything felt uncomfortable, especially the clothes she wore. They were too … she looked down at the yellow and pink lace covering her hooves and neck. She fidgeted uncomfortably, unsure as to whether or not she should remove them. However her thoughts quickly turned to her pet who had been in the bathroom for quite a while now. Thoughts of her pet made her still hard cock twitch and a fresh wave of worry ran through her mind. Had she been too harsh? Not harsh enough? She squashed the idea and turned back to the bathroom door just in time to see Twilight.

Twilight stood awkwardly in the doorway, shifting from hoof to hoof, as Celestia stared at her. Twilight wore slight eye shadow complimented by the twinge of blush she wore and renewed Lipstick. The pièce de résistance was the immaculate way she had curled her eyelashes with the same color as the lipstick. Twilight’s eyes drew Celestia’s own to her like a moth to flame. She could not look away, nor did she want to. Twilight looked back at Celestia and opened her mouth without speaking, silently asking permission to speak. Celestia merely nodded, not even bothering to close her own gaping mouth.

“Is everything alright, mistress? I can change if you don’t approve?” Twilight turned, intending to go back into the bathroom. Celestia pulled her around with her magic and brought her skidding across the floor until they were muzzle to muzzle.

Insistent lips pressed against Twilight’s own, to which she eagerly submitted. Celestia leaned forward, extending a hoof to roughly slap Twilight’s flank, making a moan escape from Twilight’s lips. She felt her mistresses’ hoof grope her backside as her tongue pressed into her mouth. Twilight was lost in a sea of pleasure until she felt Celestia’s large, dominant tongue withdraw from her mouth and the hoof on her flank disappear. She held her eyes closed until Celestia’s lips finally pulled back from her own. With great reluctance she opened her eyes to find Celestia’s inches from hers. Twilight’s first reaction was to look down and avoid eye contact but there was an insistence in Celestia’s eyes that she dared not refuse to meet.

“I am sorry, Twilight, but I must punish you now. Do not worry though, little one. You will enjoy every minute of it,” whispered Celestia huskily. Twilight shivered as her own barely contained lust made her quiver in anticipation. Celestia used words like ‘punish’ quite a bit, but in her experience it usually meant doing nearly the same thing Celestia always told her to do - just minus the politeness. Something about Celestia’s brutal domination made her even wetter than dressing up so sluttily had already accomplished.

Rampant desire clouded her judgement. Twilight looked Celestia up and down, defying her instincts which told her to look down and avoid eye contact. However the instant she looked upon her mistress in all of her perfection, she was glad she resisted that urge as Celestia positively radiated beauty and … Twilight didn't understand, as Celestia was the most beautiful being that had ever existed and every moment spent with her was spent realizing just how perfect she was but now she was different.

In place of usual fetlock regalia, she wore pink and yellow lacey sock things. Twilight couldn't find a word for them. They weren't stockings like hers, as they looked thicker. They were still lace, so they couldn't be socks. Shaking such thoughts from her head she noted the ribbon Celestia wore at the base of her tail, very much akin to the to the black bind she wore around her own tail to ensure it wouldn't get in the way if Celestia decided to mount her. More amazing still was the fact that her black lipstick kisses hadn't been cleansed from Celestia’s perfect white fur making her usually immaculate coat seem a little out of place. But finally the slight pinkish eyeshadow and look of pride she wore seemed to suggest that Twilight’s kisses were left there on purpose. Twilight very nearly melted as her blush become intense. Only the insistent and questioning eyes of her mistress kept her in check.

“Mistress Celestia you’re ... you’re … Perfect!” exclaimed Twilight, her tone filled with reverence. She very nearly fell to her knees at the sight.

Celestia’s smile must have borrowed some of the power of the sun, for she lit up the room and allowed the light to spread to Twilight’s face, the instant she looked upon it. There was a hint of pride there but it was drowned out by the genuine affection that burned through her. After a moment, it faltered and Celestia creased her lips into a thin line when she remembered she was still supposed to be punishing her pet.

Clearing her throat much the same way she would when she got off topic during a lesson, Celestia directed her attention down to Twilight - still half kneeling near the bed. “Stand up straight,” Celestia commanded. Twilight obeyed before her mind had a chance to realize what she had done. “Dance for me,” came the next command. Twilight blushed and obeyed, having done something similar on many occasions for her mistress.

Twilight stood tall on her hind legs and wiggled her hips as she brushed a hoof down her body spinning slightly as she did so. Running her hoof down her chest as she faced away she leaned down and presented herself, winking at her mistress as she did. Already Twilight could hear the bed sheets moving as Celestia’s enormous beast of a cock woke from its slumber. Twilight leaned forward more and more until she pushed herself up and stood on her forehooves, smiling at her mistress. Celestia ran a hoof across her shaft, nearly breaking Twilight’s concentration.

However she was bound, and determined to do whatever her mistress demanded. Swallowing hard, she shifted her weight to her right hoof and extended one of her hind hooves. outwards, showing off her flexibility. In a feat that required tremendous concentration, she took her breasts in her magic and pulled gently on her tits. A barely audible gasp came from Celestia, emboldening Twilight as she continued her dance. She charged more power and gripped her own body in her magic, making her spin twice before gracefully landing onto her hooves, whereupon she strutted up to her mistress, already wondering what she would do next to tease her goddess.

The sight of the twitching, engorged mass of her mistress's’ cock stopped all thought within Twilight, it was so huge! She had worked on her dance for awhile but it was hardly over. A wolfish grin overtook her mistress's’ face and with the smallest of nods Twilight shivered and obeyed. Hopping quickly onto the bed and trotting past her mistress, she allowed her to observe her entire body before she had one last glance at the sopping wet marehood that glistened under the tiny bit of light.

“You have outdone yourself, my pet,” Celestia moaned and gave Twilight’s flank a firm smack as it passed her by. “Truly enchanting.”

Twilight smiled inwardly and made a note to wear the same outfit more often. Maybe only once and awhile so it would still hold its elure. Rarity would be the best pony to ask about it … she shook her her head slightly and leaned forward on the bed presenting herself to her mistress, both submitting and invitingly.

Celestia just smiled at her pet’s enthusiasm, but did not accept her open invitation. Instead, she lay on her back beside her pet. Twilight caught her eye and a moment of confusion passed in front of her eyes. “Mistress? I thought you enjoyed this position.”

“Oh I do my pet, however,” she said, her horn lit up as her magic took hold of her massive mostly hard cock and levitated it up for all to see. “That position would make me do all the work and while you lied there and enjoyed yourself. We couldn't have that, after all.”

Twilight’s near instant panic was soothed somewhat by Celestia’s calm expression however she still jumped at the opportunity to fix her mistake. She looked down at Celestia, which was not something she was used to doing and then at her levitating cock, held at the perfect height for her. Without thinking, Twilight found herself licking her lips at the mere thought of that giant pillar of alicorn cock. It instantly made her mouth water and a faint twinge of hunger come from her gut.

Looking down again at Celestia, Twilight saw the ghost of a frown crease her lips. Taking the hint she quickly straddled the larger alicorn, doing what she could despite her smaller size. “Are you sure this is alright, mistress? I am not used to being on top.”

Celestia’s gentle smile calmed her nerves somewhat. “Twilight, you are servicing your mistress while I do little more then relax and let you do all the work,” Celestia stated. Seeing that her pet remained unconvinced, Celestia continued. “I tell you what. I was going to save this as a surprise for another time buuut ...” letting the sentence hang as her magic grabbed something from inside a drawer across the room. It floated towards Twilight’s neck.

Twilight jumped a little as she felt something click into place around her collar and tug her forward. Looking down she saw a long silver and gold leash had been attached to, and despite her logical side saying this was silly, she couldn't help but feel even more turned on by this as she was now at her mistress's’ every whim.

A moan slipped from Twilight’s lips before she had the chance to stop it, drawing a grin from Celestia. “I knew you would like it my pet. Now then, your mistress is hard,” she suggested. Twilight’s body moved on its own, Celestia’s statement being a command, every fibre of her being moved to oblige.

Twilight felt the collar turn on her neck until the leash faced backwards, held aloft by Celestia’s magic. As she shifted around trying to place her dripping sex against the massive rod of her mistress, she felt the leash pull suddenly, forcing her backwards. The massive cock made hardly any headway even with Twilight’s copious juices easing things considerably. Both mares moaned audibly as the cock head barely squeezed inside Twilight’s tight cunt.

Twilight shifted her hips and tried to find a perfect position to push back but Celestia interrupted her before she could move. “Hurry up slave, your mistress demands to be pleasured,” ordered Celestia. Her words were harsh, but Twilight could see the smile on her face.

With a fresh wave of arousal from Celestia’s words, Twilight nodded once and without a second thought threw herself against the cock head, barely able to poke its way inside her. For a moment nothing happened and Twilight was left to wonder if sleeping with it inside her had done anything to loosen her up at all. However a second later she felt it starting to slip inside and nearly lost her balance plunging nearly half of the tower of alicorn cock deep inside her. Celestia let out an uncharacteristically loud moan, while Twilight was left cringing from the pain. Within seconds however it dissipated as her alicorn physiology adapted and loosened enough to allow the massive invader enough space.

“Don't stop there, slut,” growled Celestia, as she tugged harder on the leash pulling Twilight away and further against her mistresses’ cock.

A pained moan escaped Twilight’s lips before she bit down gently, stifling it. Forcing herself to bite through the pain, she continued to work at filling her aching pussy with more of Celestia’s amazing cock. The insistent tugging on her collar wasn't enough to choke her but it was a constant reminder of her mistress's’ will - and something about that turned Twilight on more than she cared to admit. Her hooves gripped the satin sheets as much as they could as she pushed herself backward against the massive cock coming to a rest against the huge medial ring.

Gripping the sheets tighter, Twilight took a few deep breathes before throwing herself backwards. This time the cock slipped inside her with ease, the copious amount of mare cum that had dripped down the length of Celestia’s cock lubing it just enough to allow access. Once over that proverbial hurdle, Twilight stopped to catch her breath. However a now familiar tug at her neck made her open her eyes, just in time to catch Celestia’s deep frown.

“I didn't say you could stop, slave.”

“But mistress, I need time to-” Twilight closed her mouth, her begging doing little to stifle the older alicorn’s disappointment.

Grimacing to herself, Twilight redoubled her effort, heedless to the slight pain of being stuffed so full. This time she lit her horn and exerted and pushed herself back using her telekinesis. Inch after inch slid inside Twilight’s now quite full cunt until she felt the now familiar feeling of Celestia’s cock head resting against her cervix. By now her cunt burned and even her earlier excitement wasn't enough to lube all of Celestia’s massive cock.

The pain had become immense after the last few inches, and even the pleasurable feeling of fullness couldn't outweigh the sheer amount of stretching happening inside her. Silently she wished they had stayed locked together longer as maybe it would have had a more permanent effect on her too tight pussy.

However, through the haze of pain and despite the fact that she could literally feel the waves of annoyance from Celestia, a subtle warmth came from beneath her. It was small at first, radiating up her hooves in slow waves but it was there. It was a feeling she could not describe, the closest she imagined was the warmth she felt when her friends surprised her with a party, or that time that Spike had organized the library and brought her breakfast in bed when she was sick. It felt like … love.

Strange feelings aside Celestia’s insistence on stuffing her absolutely full domineered anymore thoughts. Twilight refused to meet Celestia’s eyes, fearing the disappointment they might hold. Biting her lip harder she pushed forward slightly before slamming her hips backward until her butt rested firmly against Celestia’s crotch. A content sigh escaped her mistress’ lips after her cock slipped through Twilight’s cervix and poked against the other side. Twilight’s face twisted in pain for several agonizing seconds until the waves of love radiating from beneath her washed away any discomfort, leaving behind a near endless ocean of pleasure she was quickly lost within.

Twilight’s tight lace outfit stretched over the obscene bulge in her stomach exaggerating the heart designs until they were unrecognizable. Twilight’s moaning became unintelligible when she felt Celestia’s cock twitch inside her deepest reaches. A second later she felt a tug on her leash, forcing her eyes open only to meet Celestia’s insistent gaze.

“Go on my pet, hurry up or i will do it for you,” she ordered. Twilight considered slowing down and letting Celestia make good on her threat but decided going against a direct order wasn't worth it, no matter how curious she was.

Twilight heaved her hips forward until she felt the medial ring nearly slip out of her before she threw herself back. Every thrust back and forth made her stomach bulge as Celestia’s cock slipped out of her womb only to slam back inside once more. Her mistress seemed to enjoy it but Twilight wasn't used to such a physically demanding position and she quickly felt her relatively low endurance give in. For it was arduous work and within minutes her knees burned under the strain. To top it all off the position hardly allowed the small alicorn to do anything other then push forward and back leaving her unable to lavish her mistress with the kiss she seemed to be longing for.

“Mistress my knees hurt, I don't think i can keep doing this i'm sorry,” Twilight cried as she stopped with Celestia’s cock firmly embedded inside her, panting and out of breath while her knees visibly shook.

Celestia’s frown deepened as she looked her slave up and down. However when their eyes met once more, Twilight saw the usual caring she’d beheld everyday since she first met Celestia.

“Very well, my pet, consider your punishment postponed,” Celestia commanded. Twilight almost breathed a sigh of relief. “But i rather like this position,so allow me.”

Twilight cocked an eyebrow but instantly understand when she felt Celestia’s powerful aura overtake her entire body. The feeling was orgasmic as her every movement was completely and utterly restricted allowing only her breathing to remain unrestricted and her muzzle loose enough to allow her to speak.

Twilight’s analysis of Celestia’s spell was interrupted when she felt her body lurch forward, being dragged roughly along the massive cock still resting inside her. Along the massive cock she slowly moved, more and more slipping out of her while she whimpered pathetically. Only the medial ring slowed her movement for a moment as it audibly popped out of her. A second later she felt as though she had been turned inside out as only the massive head of her mistress's’ cock still resided inside her. Her pathetic whimpers became more desperate as Celestia simply held her there aloft in her magic.

“What do you want, little pet?”

Twilight whimpered one last time before reluctantly speaking, a blush already rushing across her face as she knew what was coming. “I need your cock, mistress, please.” She felt her body shift back a little and before relief could flood over her she stopped only a few inches down. “Please, mistress oh please, i need you. I feel so empty without you.”

Celestia merely smirked and turned Twilight’s head so she could meet her gaze. “Beg for it, my pet, beg for my cock and I might just let you have it.”

The way Celestia had made that last offer almost made Twilight think that she genuinely wouldn't give Twilight what she craved. The mere thought of losing the chance to pleasure her mistress galvanized her thoughts.

“Please, mistress, I need it, I crave it, it's the only thing I think of, and unless it's inside me every waking moment I ache from the emptiness inside me,” Twilight’s pathetic sounding voice was doubled by her wobbling lip. “I will do anything mistress, absolutely anything to have your cock inside me once more and to feel your warm cum fill my womb. Fuck your little cock sock, please mistress.”

Celestia’s face remained a stoic mask the entire time Twilight spoke, but the second she stopped to take a breath and think about what more to say, she saw her mistress’ face light up with a huge smile. Before she had a time to congratulate herself on getting better at dirty talk, which was Celestia’s favorite, she felt herself thrown backwards as Celestia’s cock quickly filled the entirety of her cunt.

Twilight could do nothing but mumble half formed words that quickly devolved into unintelligible moans as Celestia used her. Celestia grunted from the effort and held Twilight tightly in her aura using her like an oversized sex toy. Slamming her up and down, her long cock at a near break neck pace. Anything either of them would have said was lost under the unintelligible grunting and moaning combined with the wet slapping sound when Twilight’s hips met Celestia’s.

Twilight came several times. There was no warning and nothing she could do to stop it - being held so completely by her mistress destroyed her very ability to speak. All the while she felt the same loving feeling permeate her very being. When she was finally able to become acustomed to the massive waves of pleasure assaulting her mind, she noticed her cunt felt utterly destroyed.

Being thrown up and down on Celestia’s massive cock at such a fast pace made her cock slam in and out of her cervix so quickly that by now it held no resistance. Celestia’s cock slammed through the barrier before it had a chance to tighten again. Twilight twisted her head as much as Celestia would allow and looked down at her stomach. What she saw nearly made her cum again, a mere thirty seconds after the last time. For her belly bulged obscenely with every thrust. Celestia’s enormous cock left a distinct outline every time she felt her hips press against Celestia’s crotch.

Celestia had centuries of practice in magic but this pushed her to the very edge of that training and experience. At first the pleasure worked against her concentration, making Twilight almost slip out of her grasp more than a few times. However after a few minutes and a couple hundred thrusts she could feel that same lust driven pleasure enhancing her concentration. All at once the need to pay so much attention to her spellwork seemingly vanished as that same intense desire to use her slave like the cum dump she was poured power into the spell instead of removing it. Free to enjoy the sight of her slave Celestia smiled at her hoof work. Twilight was reduced to a gibbering wreck cumming every minute like clockwork as the changeling spell and her own less than tender ministrations drowned her in pleasure. Even though Twilight’s stomach was still full of potent alicorn cum that had not been digested, she could still see Celestia’s cock poke and stretch the skin of her little slave.

She drew an enormous amount of pleasure, so much so that the last of her resistance finally caved and she threw Twilight down onto the end of her cock and locked her firmly there. The audible churning noise drew a worried thought from Celestia. Could it be that Twilight had teased her too much? There is no way the little alicorn was ready for a full load from Celestia’s powerful balls. However the thought was gone as quickly as it came It didn't matter if she was ready as it was coming far faster than even she could stop.

Twilight cracked her eyes open at the last second as she felt the enormous cock inside her begin to twitch and pulse. “Mistress?” Her eyes went wide and whatever she was about to say was lost as the first massive load bubbled up Celestia’s thick cock. It was so massive that despite Twilight’s already stretched and abused cunt, she could still feel the lump the massive load made as it traveled up the thick cock.

A millisecond later she felt it splash into her womb. The thick flared cock head of her mistress keeping it locked inside. Her eyes rolled back into her head while her tongue lolled out of her mouth. “Cumming, mistress,” groaned Twlight, an orgasm barely held back, a bit lip crushed her thoughts as it rolled over her body.

Twilight shook as her body was wracked by more pleasure than she had ever felt in her entire life. However one thought, one idea shone through the haze. “I love you, Celestia,” she cried, over and over she repeated it from a mumble to a yell as her own orgasm peaked.

Celestia herself was a moaning wreck who could do little more than hold Twilight down as she filled the smaller alicorn’s womb with her seemingly endless supply of cum. Barely above a whisper she spoke. “I love you too, Twilight my pet.”

Twilight heard the words she had so desperately wanted to hear for over a decade and her orgasm she thought had already peaked hit a new high that she didn't think was possible. She wanted to thank her or perhaps continue to simply mumble how much she loved her mistress over and over, but a fresh blast of cum splashing into her womb changed her focus. She felt her stomach distend, sloshing around as her slowly dying orgasm shook her body. She hadn't had the presence of mind to count Celestia’s seemingly endless loads but if she had she would have been shocked to feel load number eighty splash into her womb.

For nearly a minute both mares merely panted, exhaustion creeping up as their orgasms finally died off. Celestia’s orgasm tapered off much slower than the mare on her cock, who could do nothing but gawk as her stomach continued to grow every passing second. Quickly surpassing ‘pregnant with twins’, it only seemed to slow at ‘nine months pregnant with quadruplets’, before finally stopping after she could no longer even see her own legs.

Twilight and Celestia both gawked, unable to do anything but stare as Twilight’s stomach grew painfully large. Celestia shook the astonishment from her face first and gently pulled Twilight from her cock, causing the last few spurts of cum to shoot all over Twilight’s wings and back. Instantly the sheer pressure shot out gallons of cum from within Twilight’s packed womb. Her stomach shrank until it was no longer painful, then seemed to stop. Twilight could feel herself slowly begin to tighten back up, her alicorn physiology already going into overdrive. Inwardly she cursed as that meant she would have to deal with her womb closing and making her deal with her distended belly for the foreseeable future however… Looking down at it she could feel a sense of immense pride coming from inside herself. This is what it would look like if i was pregnant with Celestia’s foals.

The thought sent shivers down her spine and looking down at Celestia who was busy staring at her massive belly Twilight could tell similar thoughts were running through her mind as well.

After both mares had time to gape at the sheer size of Twilight’s belly Celestia unhooked the leash and tossed it aside for now. Left wondering what her mistress was thinking, Twilight cocked her head only for her answer to come a moment later in the form of Celestia gripping Twilight’s collar tightly and dragging her forward into a forceful kiss. Twilight collapsed against Celestia’s chest, unable to stand any longer. If Celestia noticed, she didn't seem to care, and continued to kiss her pet. Only breaking the kiss reluctantly as she felt Twilight begin to tremble as exhaustion took hold of her.

“Did you enjoy yourself, my pet?”

Twilight nodded weakly. “Yes, mistress.”

“Good.” Celestia gently ran a hoof through her pet’s name cooing softly as the smaller alicorn regained her bearings.

There they sat until curiosity finally got the better of Twilight. “What exactly did Chrysalis’ spell do?”

“What do you think?” Celestia’s tone was patient and reserved, the exact same one she used during Twilight’s tests.

The thought of being tested that arouse from Celestia’s tone of voice gave Twilight the energy she needed to formulate her thoughts. “It felt like i could sense emotions. When you kissed me i felt warm and i remembered all the times i felt truly loved.” Twilight tilted her head up enough to look into her mentor’s eyes.

A slight blush dusted the elder princesses’ cheeks. “You are correct my pet, since you lack the organs necessary to eat love when a changeling bestows a boon upon a pony, it makes them keenly aware of the emotions of those around them. And in your case, you got swept up in it,” she explained. A twinge of guilt rolled in Twilight’s stomach, but the gentle smile of her mistress remained.

“Don't worry, I saw that part comin., I forgive you of course,” Celestia booped Twilight’s nose playfully, drawing the studious mare from her inner turmoil. “Well that and it should make you incredibly fertile for a few hours.”

Twilight’s mind came to a crashing halt. Ideas and thoughts smashed into each other and leaked out of her mouth. “Wha wha what?” A sudden energy filled her and she stood up quickly. Her belly sloshing audibly in the silence.

“Are you telling me ...?” Celestia was already nodding as Twilight stuttered and continued. “I'm going to bear your foals?” Celestia nodded still. “Me?”

Celestia rolled her eyes. “Yes, my pet, you will bear my children. No, our children.”

Twilight’s eyes became the size of dinner plates and she could hardly contain the excitement welling within her. In an instant, all the exhaustion and aches and pains fled from her body and were forgotten.

“However, we only have a few more hours left on the spell so…” Celestia was tempted to order Twilight into position, but the fire that burned in her eyes told Celestia she wouldn't have to.

The sheer ferocity in the small alicorn’s eyes nearly made Celestia double take, and before she could get a word in edgewise she felt her still semi hard cock rammed into Twilight’s sopping wet pussy.

A moment later Celestia was hard once more, minutes later she came again, hours later they would lie awake in bed talking about foal names.

Author's Note

If you see any errors feel free to point them out in the comments, copy and pasting them makes them easier to fix as well.

Also a big thank you to kyo for the pic! Yall will see the full thing soon enough!