Cold Showers Don't Always Work During Estrus...
This is my first submission to the Incest is Wincest! Siblings Incest Contest. Please give this story a 'like' (thumbs-up above) if you like it or if you favorite/bookshelve it! Thanks!
~Legion
~ ~ ~
"I'm going to use your shower again Luna, hope you don't mind!" Princess Celestia said, entering her little sister's room after knocking and being invited in.
"Oh, not at all, big sister. Please, go ahead." Luna replied, trying to resume reading the book that Celestia's entry had interrupted her from. This was the third time today, Luna noted. Why Celestia had insisted on using her shower when Luna knew full well the one in her sister's room worked perfectly fine, and especially given her condition, she didn't know.
Luna was laying on her large, Princess-sized bed, meanwhile reading a book about her night sky to pass the time while her sister showered, playing her deep-blue hoof over a corner of the book while considering correcting the absolute foal who wrote it about how the constellations were really formed - by her own talents of star-crafting and placement - not by some unexplainable forces in the universe just happening to make them align like that.
After reading for a few minutes more, Luna watched her sister Princess Celestia coming out of the bathroom, and the lack of steam from underneath the door told her that it was another cold shower. In Spring, during a mating season, that was unsurprising, with a cold shower being one of the only ways for mares to get temporary relief from the burning of estrus.
Luna heard the bathroom door creak open, looking over to it. "I think this is working for now, but I don't think there's water cold enough outside of a Yakyakistan winter to fully quell it. Lu-Lu, do you have any other suggestions? You were always better with more subtle approaches to a mare's more...private needs. I always just preferred the old-fashioned way, but now..." Celestia asked as she stepped out of the bathroom, her mane wrapped in a large towel but otherwise wearing nothing.
Celestia knew from her past cycles that it would take more than just cold water to stop her natural breeding instincts; that she needed a stallion to truly sate her needs. Unfortunately, a princess just taking a stallion into her bed only to sate her estrus was scandalous to say the least in modern times, leaving Celestia few other options. Besides that, Celestia had another source of relief in mind this year instead of just calling some random stallion to rut her in secret.
Luna glanced up from the book, before nodding. "Well, besides the obvious solution of finding a stallion to sate those needs, I heard from Twilight Sparkle that a zebra named Zecora makes an 'Estrus-Cooling Tea', which incorporates certain crushed herbs and seeds to quell a mare's...seasonal urges," Luna said, glancing up from her book and wincing. She saw that her sister was still soaked from the shower, unsurprising given she likely wanted to keep as cool as possible, "I have procured you some of the tea mix and brewed it. It is too bad your connection with the Sun causes thine cycles to be so intense. For any other mare, a cold shower would have knocked their estrus out for at least an hour. I am sorry for your...unique condition..."
Celestia sighed, a quick flash of magic drying her coat before she came and stood beside the bed. "There is nothing to be sorry for, for the will of nature cannot be prevented for long. I appreciate your assistance with getting me this," Celestia gave a soft smile as she sipped some of Zecora's tea, it tasting kind-of minty and like another stronger, more bitter herb or seed.
Minutes later of chatting with Luna while drinking two glasses of the tea, Celestia felt the burning disappear almost completely, before slowly coming back and intensifying in seconds, making her sigh. "J-just when I thought it was better...just when I think I'd finally have something make it less intense...curse this cycle!" Celestia said, feeling a strong urge to just go downstairs and flag her tail to the nearest stallion given how intense her need was, consequences be damned.
Luna sighed softly as she saw Celestia the same way she was every cycle, her estrus always burning hotter than any other mare's. The younger princess lit up her horn in its gentle glow and levitated a summoned ice pack to the back of her sibling’s neck. "Here sister, this will help lower your temperature. Perhaps you should return to your room to...relieve yourself some? Take the edge off your estrus? I promise, it would probably be for the best," she asked, giving a soft, comforting smile as she remained on her bed, laying on her belly. Unknown to Celestia, Luna was laying like this for a very good reason.
"But sister, the guards..." Celestia said, though she had to say the idea of a muscular, handsome guardpony pinning her to the bed, ravaging her from behind...
"Fear not about that sister. I've taken the liberty of relieving the male night guards from your chamber and mine from their duty temporarily, lest one of them lose themselves to their instincts and attempt...coitus with you," Luna said coolly. Luna was also fighting those same urges of pouncing her sister, more so since she was in the same room with the heated mare, even if it was her sister.
Celestia was having a similar dilemma too, her instinct seeing Luna not as not a sister, but as somepony who could give her the cure to this constant, annoying itch and burn. Without the remedies and cold showers, Celestia knew she may have outright straddled her sister already, her scent calling to her rather intensely.
Instead, Celestia blushed lightly at such thoughts and just shook it off, trying to put her mind off of the sexy mare laying on the bed and anything involving...copulating. She knew she could last through her estrus as she had for so many years before, forcing herself to not succumb to her basal needs again, but now she was having second thoughts.
Luna tried to read her book again but the scent coming off of her sister was too distracting, with her doing her best to restrain her urges even with the ripe-for-breeding mare so close, that musky scent emanating from her and all but begging Luna to satisfy her.
Finally, after so long of the stand-off, the younger princess gave a quiet sigh and set the book aside along with her reading glasses, determined to do something about it. "So...did you wish to see Zecora for more of the tea? Did it help at all?" Luna asked simply, hoping her sister would soon leave her chamber for a while to get more tea, to leave her alone here so she could 'relieve' herself of this instinctive burden; to clear her mind for a couple of hours of the nearly overpowering thoughts of bending her sister over the bed.
Celestia seemingly didn't even realize Luna had spoken to her, staring right at her as if she had been hypnotized, looking straight into her eyes as she'd set her reading glasses aside. She didn't often see her take them off, let alone even wear them, and while it wasn't a big deal before, now she could see a beauty she didn't see before; getting lost in her sister's teal eyes. "Hmm...?" Celestia asked dumbly after a few seconds of awkward staring, Luna's words registered at a snail's pace and her only fully processing them just then.
"Your tea? Weren't you going to get more? You probably should," Luna said, getting more and more aroused by her sister's mere presence and starting to lose control of herself.
"Tea? Who needs tea?" Celestia asked as she inched closer to the bed, each step a quiet 'thud' on the dark-blue carpeted floor, her rump swinging to each side to match. As she reached her sister, Celestia stroked Luna's cheek, before finally climbing onto her bed. "I don't need any tea or potion. I have everything I need..." Celestia said, before pausing briefly, leaning forward closer so that their lips were mere inches away from touching, "... right here with you, sister. Right under your barrel and hanging proudly."
Luna watched as Celestia started walking towards the bed, her subconscious not disregarding the sway her sister's shapely, foal-bearing hips made with each step, nor how she, a fertile mare deep in her heat, was approaching her. "U-uh..." Luna stammered out, hearing her sister disregarding the temporary cures, the implications clear, "...sister, what are you...?" Luna stammered out, her deep-blue cheeks now mulberry as her they flushed hotly.
As Luna felt her elder sister kiss her on the cheek, she felt a thrill go down her spine. As Celestia climbed on the bed with her, red flags went up in the breeding section of her brain; a mare-in-heat was on her bed with her, and Luna's body was more than ready to give her exactly what she wanted.
Celestia's muzzle leaned up so her lips were only inches from Luna's own, whispering that 'everything she needed was right there', before staring at her with the most bedroom of cerise-pink eyes. "I-ah-uh...?" Luna stammered out, a mix of confusion and arousal surrounding her mind, "S-sister? What are you doing?" Luna repeated in a tentative tone, knowing what her body wanted, but her rational mind still considered the consequences.
As Luna spoke, Celestia seemingly snapped out of her haze as quickly as it had taken control, her eyes widening as she realized how close she was to her sister; her hoof on Luna's face and the intense blush on her sister's cheeks. Her rational mind quickly kicked in, Celestia realizing that this was wrong. Luna was her sister, she thought, family, and family shouldn't do things like this. Of all the potential ponies she could have chosen to come on to while she was in her heat, she thought miserably, she'd had to choose her own sister.
"I...oh, I'm so, so sorry!" Celestia said as she recoiled and looked at Luna with an embarrassed rouge coloration under her white-furred cheeks, unsure of what to do now as they lay together in their mutual, intense arousal. Celestia needed to get a hold of herself, but couldn't think of how to in her breeding haze. Luna had mentioned more tea, but she'd already used up what Luna had made and more seemed so far out of reach, not to mention it was utterly ineffective.
Deep down, Celestia questioned if she even wanted to control herself around her sister. Why had she taken her showers in Luna's bathroom instead of her own, she wondered. Did she, deep down, want this kind of encounter to happen?
Luna heard her sister's apology, but knew there was nothing to really be sorry for; the subconscious urges of a mare in heat to be close to ponies they loved and wanted as a mate were very intense, just as were those of certain ponies who were in such a mare's vicinity. The younger mare felt a strong desire to roll on top of her sister, to just start grinding her hips until she found her warm, wet entrance and going at her until both were properly satisfied. A temptation growing ever harder to resist each moment spent so close to her.
"C-Celestia...sister..." Luna whispered, barely containing herself, "...what do we do now?" As usual she wanted her elder sister's wisdom on a situation like this, but she also knew the general stigma of incest. "...if word got out that the two princess, one of whom had something that was kept out of the modern public's knowledge, were sleeping together in modern times..." Luna shuddered, thinking of the possibilities, especially among the nobles.
Of course, Luna realized that asking a mare in heat what to do about something like this probably wasn't her best idea.
Celestia grinned at her sister's adorable expression, reminded of a confused little puppy looking to its master for guidance. Celestia quickly realized as she nuzzled her again that Luna's blush was so cute. Her coat was so soft as she nosed into her, its fur such an attractive shade of contrasting blue and black.
Celestia could still remember how she used to crush on Luna when they were still so young, how back in their budding adolescence she'd wished to tell her sister her deepest feelings for her, but was shortly after taught that family members simply couldn't love each other in that way.
Luna too had found her sister very attractive then, somepony she'd be proud to call her mare and wife, and, though she was loathe to admit it, she'd indeed masturbated to thoughts of her doing lewd actions to her sister during her estruses. Even more, she even still masturbated to the thoughts of her sister sleeping with her sometimes, though she would have never admitted to it.
All those years since, Celestia had kept her attraction to her sister to herself, under her parents' and the aristocrats' noses, but no one enforced those laws against incest any longer. Sure, incest was still considered taboo to some, but it wasn't illegal. Some in fact had no problem with it at all and encouraged love in all its forms.
For a while, Celestia simply lay there with her sister, muzzle buried into the soft fur that smelled so familiar and welcoming. A scent that reminded her of long spring and summer nights, stargazing with her sister, sharing a picnic out under the starry night sky that Luna had just learned to control.
Luna too thought about how good it felt to be beside her sister, feeling Celestia's soft nose nuzzling into her wing, cuddling with her in a way they hadn't since they were hormonal adolescents...since before she'd taken the Nightmare's offer and tried to extinguish the sun eternally; to extinguish the mare who controlled and shined as brightly as it as well.
Now, however, pushing those dark memories aside, Luna focused on the now and was trying to decide what to do about the matter at hand, long buried feelings for her sister resurfacing.
"Luna? I need to...ask."
Luna jumped a little at the gently-spoken question, then simply remained silent, her lip quivering slightly, her nostrils still flared on reflex as she continually took in the fertile scent of the mare beside her.
As she pulled her nose from where it was, in Celestia's mane then, Luna observed once more that her sister's coat was such a beautiful, pure white, her light-cerise eyes so attractive as they stared into her own of teal, those beautiful, lively eyes making her heart pound in her chest. She eventually pulled her gaze away from her sister's and they soon landed on her wings instead, their feathers beautiful and well-groomed, reminding Luna very much of a graceful swan's from their color and size, her long neck also comparable to that beautiful avian's. Celestia's whole body was perfectly healthy; still able to bear healthy foals too, no doubt, her subconscious added.
"Then ask," Luna replied simply, knowing that her question would likely only be one thing given their shared predicament.
Celestia cleared her throat, the sexual tension in the room almost palpable. It was like a thick fog settling over her mind and making it hard to breathe normally, with her instead panting through her nose at just how hot she felt inside her lower belly. "Luna, if I asked you to...h-help me with 'it', would you do it?" Celestia simply asked, though the vocal tremble at the end betrayed her tentativeness.
The question had made the situation so much more uncomfortable for Celestia that she looked away in shame. How could she ask such a thing, she chastised herself. It was so wrong, undoubtedly so outright disturbing to ask her sister this...but at least she could blame this thinking on her estrus if Luna were disgusted by what she'd suggested.
Luna thought quietly for a short while, nodded, then suddenly rolled onto her side. Instantly glad to be freed, having long been trapped in its prison between her barrel and the bed, her twelve-inch stallionhood popped out and its flare slapped her belly with a wet 'thud'.
Its skin was naturally a solid deep blue-black, her balls coated in the same deep blue as the rest of her, all heavily engorged with blood in her arousal. Luna's fat glans was slightly flared from the previous stimulation she'd gotten by subtly humping the mattress and was coated in pre, her belly-fur matted from the same. She also revealed her arousal-puffy vulva located between her anus and her balls as her tail swished aside, it too leaking its arousal down her thigh, as well as giving a quick wink of the clit.
After she'd freed her trapped stallionhood, it was a relief in a way, Luna giving a quiet sigh before looking over to Celestia as she lay on her side, showing her sister her erect cock and seed-filled balls. She winced a little, her heavy testes swollen in intense arousal, her whole crotch starting to hurt a bit from being hard for so long without relief.
Celestia had been in heat the entire day after all, most of it spent in Luna's bedroom flaunting her scent around it would seem. Her erection hadn't gone down since her first shower in Luna's bathroom early that morning, and it was well into the afternoon already. Since Celestia insisted on staying in her room constantly, Luna hadn't been able to 'relieve' herself either.
"Help how, exactly?" Luna asked, her position and tone showing that she was at least thinking about what Celestia had all but asked for.
At the sight of her sister's erection Celestia felt her cheeks flush hotter, having never seen it up close in such an erect state. Sure, she knew her sister was a lucky, rare pony born with a working set of both stallion and mare genitals, but she'd not been expecting the sights and scents to be so completely intoxicating, her male musk permeating the room and making Celestia’s head swim.
Celestia observed that Luna was obviously pent up too, judging by her tip seeping pre-seed and twitching slightly, and how swollen her balls were.
Celestia studied this part of her sister she'd only rarely seen before, hanging flaccid from a distance, with gusto now, her lustful mind drinking in the sights and scents. The shaft itself was so deep blue it was nearly black, its flare the smaller, more elegant-looking tip of a unicorn's penis instead of the thick, club-like one of an earth pony's or smaller but more ridged one of a pegasus. Her shaft led down to a sheath and balls the same as her fur's color. Observing that said balls were each the size of a medium-sized apple, Celestia knew just how virile her sister was just by their size alone.
As she studied her sister's package, Celestia held her tongue, not able to give a reply to Luna's earlier posed question as she instead dove for what she so craved, not able to control herself while having something so desirable in her condition in front of her like that and just begging for her attention.
Celestia buried her muzzle between Luna's legs and, without hesitation, nuzzled into her large balls, eliciting a moan from the pony they were attached to as Celestia took in the musky, masculine, virile scent of her sister.
Celestia's bare hooves went up from her sister's inner stifles all the way to her shaft, rubbing it up and down, slowly caressing its whole length with the soft frogs of her hooves. She felt possessed, like she couldn't help herself. It was all Luna's fault, she told herself, for so obviously presenting herself while erect when Celestia was in such a needing state.
"S-Sister?!" Luna gasped sharply as she felt her sister's muzzle at her swollen sack, feeling what she could swear was a soft lick on it, with that sensation making her cock throb again and a bead of fresh precum drool down its side. She then felt Celestia's hooves tracing along her inner stifles, up to her pelvis, before both then squeezed her hard cock. That sensation of softness and pressure on her most personal part made Luna give a quiet breeding whinny in instinctive response, welcoming her mare and accepting her as a mate.
While she initially tried to resist the urge to hump as Celestia started rubbing her stallionhood between both hooves, Luna couldn't resist for long at just how heavenly it felt, her hips rocking to match her sister's rhythm in opposite; hips shifting up as her hooves slid down, and the opposite when they went up. More pre oozed from Luna's cock-slit as her shaft pulsed between her sister's hooves, lubricating their movements. "S-Sister..." Luna whispered out again, her tone one of lust but also love, the sensations of Celestia's hooves expertly rubbing over her shaft already having her in a state of elysium.
Wanting to reciprocate, Luna lit her horn, using her magic to softly rub her sister's stifles right over her cutie marks. Another spell targeted Celestia's wings, gently tracing between them along her spine as well as rubbing their bases. Judging by the moans she got from her older sister, and knowing both to be very sensitive spots on herself, she knew they likely were for Celestia as well. She also gave little flicks on her sister's marehood, feeling her tense at the sudden, intimate touch, then push her hips back into it.
Celestia arched her back at the touch of Luna's tingly magic over her wings and rump and shivered pleasantly, looking up and lidding her eyes. Noticing her immediate reaction to pleasure her back, it was clear to Celestia that her sister wanted this as much as she did. While she was originally afraid Luna would have panicked and backed off, called her a sick pervert or possibly would have done something more rash, she was instead relieved to see Luna accept so willingly and eagerly. Now, she intended to reward her compliance.
"Sister, you've always wanted me as much as I wanted you, haven't you?" Celestia asked with sudden realization, shifting her head's position slightly lower. Luna moaned as her elder sister then gently licked against one of her large testes as she kept stroking her off, Celestia's hooves gliding up and down to rub and massage every inch of that turgid stallion-flesh. Celestia, though, didn't need an answer as she heard Luna's breathing hitch and feel her hips thrust into her hooves, making the elder mare grin. "Cute and sexy. You really have it all, don't you?"
Luna meanwhile couldn't respond as she felt the constant onslaught of pleasure; the nearly-hot mouth lapping on her balls, even taking one of the largely-swollen orbs into itself fully at one point and slathering her tongue all over it, the hooves expertly stroking her shaft; all was blissful and breathtaking. Luna had had quite a number of mares and stallions share her chamber back before she was sent to the moon, and even a few since she'd come back as well, in secret and disguise, but these were surely the acts of a well-seasoned mare with the experience of hundreds or thousands of relationships.
Luna watched as her sister rose her muzzle, now licking along the base of her shaft, then tracing the small bulge her urethra made along its underside all the way to its tip, paying careful attention to her medial ring. Luna started to muss Celestia's mane as she thereafter only gave hot breaths on her member, teasing her, with the anticipation killing Luna. "Celestia...you make me feel so good..." Luna said, now rubbing her sister's ears, getting a pleased 'mmm' from her in return, "...m-more please?"
"If you think just that feels good...you haven't felt anything yet, my dear," Celestia said in a sensual tone, before she began to drag her muzzle around the circumference of Luna's flare, adding a few occasional licks to it for lube. She knew this would feel much better than before for her sister, not oblivious to what most stallions enjoyed, with her muzzle and tongue being able to encase all around her shaft rather than her hooves just rubbing its sides. She also enjoyed her sister's precum more than she thought she should have, it tasting bold and faintly musky; telling her subconsciously just how virile her choice of mate was.
"C-Cellie...please...no more teasing..." Luna panted moments later, not sure how much more she could take of the almost torturous dalliance as her sister barely suckled on her flare, making her feel almost as though she were the one in heat and not her sister. She knew, though, that her cycle was days away still.
"Hm...very well sister, if that's what you wish," Celestia said, conceding to her sister's desires despite wanting to draw it out a little more. She loved foreplay almost more than the actual sex generally; the closeness to her partner, the building anticipation that made the final orgasm all that much more intense, "Let us see if this is more your speed."
Celestia took her sister's whole flare into her muzzle, feeling it pop past her lips and quickly fill her mouth with the flavor of a viral stallion's precum and the lightly-salty flavor of her sister's flesh.
"Oooooh Celestia..." Luna moaned, her head pressing back into the mattress as her sister tended to her. Luna felt as her sister made sure to thoroughly lick the underside of her flare where it made a gentle point, making her let out a shuddering breath in reaction. Her hips gave a sharp hump up out of her control and introducing another couple inches into the muzzle so pleasing her, her sister graciously accepting them.
Bobbing up and down slowly, Celestia paused to dip her tongue into the small dip where Luna's glans was concave, finding a small amount of precum waiting for her there along the small nub of her urethra, the prior of which she absolutely devoured with a swipe of her tongue. It tasted wonderful to her, with any more pre that followed suit with a throb of Luna's member immediately consumed by her. As she noticed how quiet Luna was being, she paused, looking up to her. "Are you alright, Luna?"
"F-fine, I am fine..." Luna panted after a moment to catch her breath, looking down to see her penis resting atop Celestia's head while she instead took to giving gentle kisses on her balls again; a sight that would accompany her on lonely nights in the future no doubt. After tonight though, she didn't know how many of those she'd be having.
"Do you wish for me to continue? You looked like you were getting a little...overwhelmed there," Celestia said, pausing her ministrations as she looked up to her little sister with mild concern in her eyes.
"No! O-of course not! I just...wanted to reciprocate! You are the one in heat after all!" Luna said, though it was obvious to Celestia after so many years together that Luna was simply saving face.
"Oh, no need for that. I'm more than ready to accept you as my mate, in the truest sense of the word," Celestia said, feeling her pussy winking faster as if in confirmation of that fact, her now only slowly kissing her sister's shaft.
"C-Celestia..." Luna whimpered out, finally giving in both physically and emotionally; "...s-sister, I have loved you as more than siblings since we were adolescents...I've always wanted to do this w-with you, but everypony said it's w-wrong. T-they said that sisters aren't supposed to..." She paused again, the constant onslaught of sensations, and just how pent up she was even before Celestia's ministrations had even started, finally overwhelming her.
Luna's thrusts were growing less consistent and more desperate, her flare starting to swell into the natural mating plug it was. "Y-you...I'm..." Luna warned, and thankfully Celestia got the hint and stopped, denying Luna her orgasm.
Instead, Luna watched as Celestia crawled up on top of and straddled her, positioning herself so her aching passage positioned over and dripping onto Luna's flared member, "...I love you, sister."
The elder sister quickly leveled herself with her smaller mate, chest to chest, so their muzzles were close again. Celestia didn't tease this time, however, as she pressed her lips against Luna's in a kiss of pure, unrestrained passion. Luna was initially surprised at the kiss, though she quickly melted into it, moaning softly into it, savoring their first kiss.
As she felt her sister's burning snatch rubbing slickly along the bottom of her length as she ground against it, Luna moaned into her sister's muzzle, her mare-cock throbbing in reciprocation, wetting her lower chest with her profuse pre-ejaculatory fluids. She felt Celestia's clit winking along her shaft, feeling a small shiver go through her sister as that small nub fluttered along her member, giving it kisses in the most intimate way possible.
She could tell how ready Celestia was, her whole member completely soaked in only a couple of passes, but for now Luna focused on her sister's lips on her own as they kissed. She'd always wondered what they'd feel like, what Celestia's lips would taste like, and now she had the answer: they were soft as silk and tasted much like she smelled, with a hint of what seemed to be orange.
"I love you too, Lu-Lu..." Celestia said once their kiss ended, still tasting a hint of blueberry on her tongue from Luna's flavor. She couldn't wait any longer as she placed her lower lips against the top of her sister's rod, grinding up and down it as she once more met lips with her lover for the night.
Luna felt as she was kissed again and moaned even deeper, feeling Celestia's tongue tangling with hers now, sending bursts of lightning down her spine. Her cock was throbbing constantly now, her flare at its fullest as Celestia started grinding again, her labia spread and rubbing her vaginal entrance against Luna's undershaft. "I-I'm about to c-cum!" Luna warned, holding off as much as she could, but it was getting harder to.
Celestia kept grinding for a short while more, so lost in her heated need she disregarded the warning. As she felt her sister's flare swelling up and heard her warning, and as she looked down and saw that desperate expression on Luna's face, she stopped dead. Luna whimpered as she lost the stroking sensation again, though was thankful to find the pressure in her pelvis receding again. She wasn't ready to blow yet.
Looking into her sister's eyes again, Celestia gave a small, sexy smile complete with bedroom eyes, giving one more slow grind up Luna's shaft. "You'll take care of me very well with this, won't you sister?" Celestia asked, getting a nod from Luna. "Oh, I bet you will..." Celestia lifted her sizable rump, a string of her thick mare-honey attaching their genitals for a moment before snapping, "...I'd say we get on to the real fun."
Author's Note
More sexy times incoming!
"So, how would we like to do this?" Luna asked impatiently, her recently-denied orgasm making her more than want to earn it, but seeing her sister only shrug. Luna had just been given a great blowjob by her sister Celestia, Celestia's estrus egging them both on to show another side to each other, a side that was clearly barely contained for many, many years. A lust for each other that was now culminating to the most intimate act possible.
"I'll take you however you please, so long as that big dick ends up inside me," Celestia replied, and, her urges once more taking hold, started kissing her sister Luna softly again, a chain of brief, yet deep kisses while her hips started to grind against Luna's again.
To Celestia's slight disappointment, Luna made motions to get up, to which she allowed. She watched as Luna got off the bed, and seeing her stallionhood hanging stiff and ready made her lick her lips at the sight. "Well, we could do it dragon-style*. That is a very intimate position, chest-to chest like we were. Or, perhaps you wish me to mount you, to take you as our ancestors mated?" Luna asked, watching as Celestia seemed to make a decision.
In response, Celestia assumed the position she desired, raising her hips to accommodate Luna's slightly smaller body as she laid on her back in the position her sister suggested. "Like this. I want you to mount me like this," Celestia said simply, and seconds later she felt Luna on top of her, her rod rubbing up against Celestia's very wet snatch.
As Luna felt Celestia's heat-swollen lips pressed to her glans again, her member throbbing in reaction as it winked on her flare in a kiss, something occurred to her; a moment of clarity through the fog of pheromones, realizing that she wasn't wearing a condom, Celestia wasn't using protection, and with just how fertile Celestia smelled... "S-sister, you're in heat...shouldn't we use some sort of foal-prevention?" Luna asked, though in reality she wanted nothing more than to see Celestia's barrel swell with her foal, to Tartarus with what other ponies may say.
Celestia stayed silent, thinking, but knew the instant she hesitated in saying 'yes' that she wanted this. "Just...hurry up and fill me, Luna. I need you inside me, now please," Celestia whined, squirming a bit underneath her, slightly annoyed at the position they were in now because she was pinned and couldn't make her put it in; completely at her smaller sister's whims and more turned on because of it.
After she didn't hear Celestia demand contraception, Luna smiled a little at the implications; that she may want to recieve a foal from her. If not, there was always the 'after-sex' spell that could be used. Either way, Luna finally realigned herself, before shifting her hips slowly forward.
Luna moaned softly as she felt her sister's warm pussy-lips spread around her flare, warmth and slickness surrounding one of her most sensitive parts. She could swear she was dreaming this, but she knew a dream could never feel this good. Her own clit slowly winked as well, a stream of her own feminine fluids drooling down her leg as Luna penetrated her sister.
Celestia slowly laid her head back into the mattress and purred quietly upon feeling Luna's flare pop into her, the rest of her shaft parting her lower lips quite easily and sliding in smoothly given just how much lubrication she'd made. How thick her mucous was, and how easily she accepted then clamped down on her member, told her 'stallion' just how fertile she was; likely ovulating right then, her fluids thick to welcome Luna's sperm right up into her fecund uterus to meet with her egg. To fertilize it. To make her a mother again, as she hadn't been for too many years. "Yes, sister. Fuck me. Please. You have no idea how much I need you right now." Celestia whispered passionately, kissing the side of her sister's muzzle as both panted from the sensations down beneath them.
Luna's girth was perfect and not too thick, filling Celestia up just right as it ever so slowly slid further, filling the void within her with just what it needed. It felt as if Luna's stallionhood was custom-made for her marehood, so filling but that stretching not painful at all.
Celestia's front hooves snaked around Luna's neck as its medial ring kissed softly to her entrance, then passing it and filling her up just that little more. She planted her lips on Luna's again, as the sensation of it rubbing over her clit rolled through her, wanting to kiss her while they made love for their first time. Everything felt perfect for her.
The secret fantasies of them doing something like this ever since she'd hit puberty and realized the significance of Luna's secret trait were now fulfilled, something Celestia thought impossible given their familial relationship. "Luuuuna..." Celestia moaned; moaning her sister's, her lover's, name in between kisses.
Luna sighed as she slid herself more into her sister's welcoming, hot, tight passage, feeling it kneading and hugging all over her. "You're so hot inside...feels so good and tight..." Luna whispered sensually, before getting impatient and pressing herself the rest of the way into her, hilting her.
Celestia meanwhile felt as Luna pressed her flare gently against her cervix, feeling like it was pressing against her belly button she went so deep. They fit together perfectly, as though their parts were made for each other, "...it feels...amazing."
It had been so long since the last time Celestia had a stallion help her with her heat, and it certainly was not as fulfilling as what Luna was giving her now. Most ponies didn't interest her romantically, and while she knew romance wasn't the main point of sex during estrus, she'd always preferred to do it with somepony she truly loved.
Celestia wanted her sister more than just as a semen donor to relieve her estrus and fool her body into thinking she'd made a foal. She loved her dearly, and would even actually bear her foals if Luna wished it, no matter what other ponies thought.
For Luna, having sex with Celestia felt much different than anyone else she'd been inside, or had inside herself, before. So much more meaningful and special, her love for her so intense she truly wanted to get her pregnant. Speaking of... "M-May I start?" Luna asked, feeling as her sister’s nearly-hot insides rippled around her stiffness.
"Do as you please...just don't hold back. I need you so badly," Celestia whispered back, "I love you."
Luna felt as she was balls-deep inside her sister's hot, hot passage, feeling her body squeezing on her member near-constantly as she held still, letting her acclimate to her tightness. After a moment's pause, Luna started rocking her hips slowly, millenniums-past experience twinning with instinct as she slowly humped into her sister. She pulled out partially so her medial ring exited, before swiftly hilting herself again, being rewarded with a wink and a tight squeeze from inside Celestia. "Faster, more, please," Celestia whimpered, grunting in satisfaction as Luna gave a harder thrust in response.
Luna wasn't thinking about other ponies at the moment, nor the foal that could result from this; she was simply thinking of the heated mare between her forehooves and the sweaty chest beneath her own, Celestia's foal-passage so delightfully, eagerly kneading her stallionhood of its seed as soon as it'd penetrated her.
Luna kept up her slow but firm thrusts, fulfilling her sister's instinctive and emotional needs as well as her own. "I love you Cellie, more than a sister..." she whispered lovingly, bringing her in for another soft kiss as they bred, her pace picking up a little more at her insistence.
"You're doing wonderfully, Luna, and I love you too," Celestia sighed pleasantly, enjoying the slow, firm pace Luna was taking, but knew that it wasn't enough; not enough for her, or her heat, to be fully satisfied. Lighting her horn again, she gave her sister's butt a playful squeeze and pushed it down a little, making Luna hilt her a little rougher than she had originally intended to. She gave a moan in sync with her sister’s, feeling glad that the increased pleasure was mutual. "A-aaah... a little bit rougher please?" Celestia half-pleaded, her back hooves kicking a little from that one sudden burst of stimulation.
Noticing the magic on her rump pressing her hips forward just that once drove Luna on, making her thrust harder, and she nodded softly to Celestia's request. Setting her hips to a mid-paced rhythm, Luna moaned softly at the more powerful sensations as her rod dragged through her sibling's tight, ribbed canal, feeling it constricting it in the best way. The scent of a fertile mare drove her on, her cock throbbing, squirting another shot of pre-cum into the small puddle of it forming inside her sister. That alone was likely enough to impregnate her already but Luna was nowhere near done yet, her body wanting to seal the deal.
It was a wondrous feeling as Celestia felt filled up by somepony she loved, her heart swelled with a warmth that she had rarely felt in her lifetime. Butterflies danced around in her stomach as she felt the tingling pleasure within her pussy, feeling Luna sliding in and out almost effortlessly yet setting her alight with pleasure. She knew now that she truly loved Luna as a lover, not just a sister. Knowing it wasn't just her heat goading her actions. "You feel wonderful, Lun-aaaah...!" Celestia yelped as a wink timed perfectly with Luna's ring passing over her love button, the intense stimulation making her squirm underneath her sister. "That's...m-much b-better...mmmpf...k-keep doing that."
Kissing Celestia's neck and lips, wherever her lips would land really, Luna kept that moderate pace for a long while. As she felt the end drawing closer and closer, she held longer, more loving kisses, shifting so she could up her thrusts to be balls-deep and rapid, Celestia's legs meanwhile crossing over her croup and holding her in. She also felt as Celestia’s magic crept between her legs, rubbing then filling her pussy with tingling magic too, doubling down on her pleasure. Her own marehood squeezed down on it, doubling the sensations as she was fucking and was fucked at the same time.
In a few more minutes of rapid fucking, Luna grew close again, teetering on the brink, starting to flare more inside as Celestia's inner walls grew tighter still around her. Celestia's squeezes and winks were growing more rapid as well, her moans getting more and more desperate and forced as well, her panting getting more ragged.
"I'm...I'm getting close again Cellie, but I'll try to hold off so we can finish together..." Luna muttered, keeping her rapid pace for a while before slowing significantly as she nearly climaxed, resting as she throbbed hard, flared inside of her sister's passage. As she'd rested, her magic gently rubbed on Celestia's teats, clit, and wings.
Celestia loved all of the extra attention Luna gave her, feeling pampered in a way she'd never gotten before with her previous stallions. Most would just lick her enough to get her wet enough to penetrate, or not at all if she was soaked like she usually was in heat, then hump for a couple minutes, and finally blow their load inside her, not caring much about her pleasure so much as their own. Their semen calmed her estrus, silenced the urges for her to find a stallion to give her a foal for a while, so she didn't complain. Plus, she generally got to orgasm on round two. Luna, however, was doing everything in her power to let Celestia climax with her; the labor of a true lover.
"M-mmmmm, I'm getting c-closer, love. I can feel you're f-flared nice and big for m-me..." Celestia groaned in a higher-pitched whimper, her contractions getting closer and stronger, her passage growing tighter as she winked frequently, her breathing increasing; all the signs of a mare nearing her climax. The feeling of her flare swollen again, preparing to dam her up with her seed, was incredibly arousing. Her pleasure grew more and more with each stroke. Her entire body trembled lightly with the intensity of feeling her ‘stallion’ flaring. She knew Luna wouldn't last much longer. "You can cum in me..." Celestia moaned out, the thought of not getting filled up unthinkable in her breeding haze.
"A-are you sure, sister? You're in heat, s-so that m-means..." Luna said, all the while humping fast enough to make her balls slap wetly against Celestia's soaked rump. She knew no other mare that she'd want to be with like this except Celestia, no other mare she wanted to have her foal more than the mare she loved most. She loved her deeply and wouldn't hesitate to give her a child, but was worried if this truly was what she wanted and not just the heat forcing her hoof. Even then, her hips did not slow, almost like she couldn't make them, with just how close she was to release making it just so tempting to just take one more hump, than another.
"A-Aaah...yes, c-cum in me...but if you cum before me, you better be able to go again soon," Celestia cooed, her grinds getting more intense, making sure Luna was hilting all the way each time and not leaving a single inch outside her. She bit her lip at the thorough filling Luna's dick gave her, her back legs helping Luna reach a rutting pace now as she neared her own limit, the ridge of her swollen flare digging into some rather nice spots inside of her now with each pass of it over her G-spot.
She could feel Luna pulsing rather hard inside her, with her thrusts getting more desperate, knowing she must have been closer than she herself was. "Don't worry...just go ahead and finish Lu-Lu...we have all night for me to cum too," Celestia comforted, starting to thrust her magic faster inside Luna, pleasuring both her mare and stallion parts simultaneously.
Her hips kept rocking, her flare at its fullest as Luna felt her sister's vaginal clenches growing closer, fighting with all of her might to wait for her to cum, using her magic to keep stimulating her elder sister. "I...can...can go again after a b-break...I just...I can't..." Luna promised, knowing a mare's pheromones were a very powerful aphrodisiac; knowing she would be rock hard and ready again after the first orgasm with a few minutes' rest. She always was.
"Hnmm-good. Now, just finish strong for me. C-cum in me, make me cum too..." Celestia said in a shaky voice, tingles going up and down her spine. Her pussy was twinging around Luna's flared stallionhood, her legs starting to tense up as she moaned much more openly and consistently when Luna's softened flare expanded her inner walls significantly once more. Her hips bucked up into her sister’s thrusts more, her legs kicking out randomly at the instinctively-telling sensation of her stallion flaring inside of her again; that spreading telling her that Luna was getting ready to make her a mother. Celestia loved that feeling almost as much as an orgasm.
Luna felt light touches on her testes as Celestia clearly goaded her on with feathery flicks of her magic, the extra stimulation making her cock flex and stimulating both of them more as they got closer and closer to their climaxes. Celestia's clit winked more feverously in her sister's magic, her body quivering with excitement.
"I'm very c-close! C-cum Luna, Please...c-cum for me, my beautiful stud!"
"I-I can't take much m-more!"
Celestia's back hooves instinctively locked around Luna's croup, holding her closer and keeping her cock inside so each thrust was only an inch back and forth, her passage doing the same to Luna’s member. Each thrust from Luna was like a mini-orgasm now, Celestia's body spasming for a moment as she even squirted a little, making herself that much more slick. All she needed to enter her ecstasy were a few more thrusts.
"D-don't stop for Faust's sake don't stop!" Celestia barely forced out in one breath, her wings spreading and erratically flapping, her fluids practically spilling out like somepony tipped over a water bucket as she intentionally squeezed down on Luna, trying to set her over, "I'm... I'm cumming, Luna! Make me a mother!"
As she heard such lewd words coming from her sister, Luna let out a deep breeding whinny as she hilted herself a final time, her slightly-protruding urethral opening once more kissing the entrance of Celestia's cervix as her passage milked her tightly for her seed. She would give it only too gladly. Luna held her sister's barrel tight as she remained hilted, her cock stiffening, then throbbing harder, harder...
When she felt those-oh-so-wonderful involuntary contractions in her pelvis, Luna went silent, feeling the pumping of her cock, the throbbing of her balls, as she unloaded shot after shot of her virile Alicorn sperm into her sister's waiting womb. She bit her lover's ear on reflex to cope with the sheer pleasure she felt, her sister's cervix meanwhile dipping down, kissing her flare to bring her cum up into her womb.
It had never felt that good before to cum for Luna, her heart pounding as she held onto her sister for dear life. Meanwhile, her passage went into its own contractions around her sister’s still-pumping magic, giving Luna both a male and female orgasm at the same time.
Luna's shaft never seemed to stop pumping into her sister's ripe womb, painting her fecund uterus's and pussy's walls white in her sticky, life-giving cum. Her back legs started to wobble slightly as she felt each gush after gush of thick, potant seed being taken from her and entering deep inside of her procreant mare's furthest depths. This was different than any other mares she'd slept with before. She loved her sister. Luna did something this time that she'd never done for another pony during sex before; she put her muzzle within an inch of her sister's ear and whispered something to her. Four little words.
"I love you, Celestia."
"I L-LOVE YOU LUNA!" Celestia cried out as her sister's flare pressed firmly to what felt like her belly button, Celestia knowing instead it'd likely hit her cervix. Her head tilted back into the mattress as the rhythmic pump-pump-pump of her sister cumming in her reverberated through her squeezing inner walls, feeling thick warmth pooling farther within her, and Celestia felt a sense of primal gratitude for such a gift.
Hearing the declaration of love from her sibling, and the feeling of her unprotected insides being coated with sprays of warm, gooey relief, finally set Celestia over. She gave an especially hard tremor as her depths were filled, letting out a deep groan as spurt after spurt entered into her womb, able to feel it all landing within her depths; so much cum it could have been two stallions unloading inside her at the same time.
Celestia's lower belly was feeling quite pleasantly filled and warm now, that warm feeling increasing with each new spurt of the incestuous cum into her belly, her passage now involuntarily, ceaselessly clenching onto the rhythmically throbbing length of Luna’s stallionhood and claiming all she had to give. Luna's large and growing donation had left her heat cooled and Celestia felt nothing but warm, tingly, and wonderful inside as her insides milked everything they could from the spurting 'stallion' within her, her constant, grasping contractions making her writhe in pure bliss as her body claimed its stallion's foal.
At that moment, Celestia knew the best feeling she'd felt in her entire life. She knew the feeling of being one with the pony she truly loved most.
Luna kept humping shallowly, reticent to move even an inch from that milking warmth she was embedded into. She could feel Celestia's body milking her of her seed, accepting her to-be foal into her womb. Eventually, unfortunately, her gushes ended, simply leaving her fully flared and pressed up against her mare's cervix, her swollen flare keeping the full load of her thick foal-cream plugged up within Celestia's womb as nature had intended it to. As she was coming down from her twin orgasm, feeling physically emptied yet so emotionally full at the same time, Luna meanwhile kissed all over Celestia's muzzle, before once more ending it on her lips.
Their post-coital kiss was soft and chaste to contrast the absolute rutting they'd been doing, Luna's eyes closed as she still felt Celestia's inner muscles tugging on her, trying to wring more seed to make a foal with deeper into her lightly-swollen womb, though she had no more to give right then. "I love you..." Luna repeated after their kiss ended, pausing to give her sister another kiss on the nose, "...love you, love you, love you."
"Do you really?" Celestia asked, her serious tone taking Luna aback. Now that her mind was clear of her lustful needs, her estrus sated, she was able to think about this all while they rested. "Perhaps, all of this was a result of my pheromones calling you to simply breed the fertile mare, like all of those other mares you admitted to me that you've bred since your return. Those mares you gave a foal to before in disguise at those ‘Canterlot breeding parties’. All those princes and princesses out there, not even knowing they're royalty," Celestia paused, meeting her sister's eyes with a steely gaze, " Tell me sister; this 'love', is it just the influence of my pheromones on your mind, driving you to say things like this? You've never showed any signs of loving me like this before my heat. You were everything a sister should be, and nothing more."
Luna was quite taken aback by the accusation, that these feelings she admitted being called into question about their authenticity, dismissed as simply being pheromone-driven. Her stallionhood's hardness wilted now, Luna's penis slipped free from her sister's slightly-gaping pussy with a quiet, wet pop, Celestia leaking a small amount of stallion-cream from within her.
Instead of responding instantly, Luna instead shifted them on the bed, moving so they were in an awkward spooning position, taking big spoon despite Celestia's larger size making it harder to wrap her hooves around her. "Luna, tell me now, please. Is this...is this all just a 'seasonal' thing, merely because I was in heat and you couldn't hold back anymore?" Celestia asked, getting a quiet sigh from Luna.
"Well, yes and no, Cellie. Yes, I couldn't hold back my lust for you, and no, this isn't merely a 'seasonal thing'," Luna replied, feeling Celestia squirming a little, feeling the wetness of her semen leaking from her and onto Luna's stifle, "I've always loved you more than as merely a sister, but I just never showed it because...well, first because our parents said it was wrong, and then, for a while...I truly did hate you," Luna saw Celestia's ears fold back at that, "When ponies loved your day and disregarded my night....that hurt me, being ignored like that while you were loved by everypony. Being ignored by you though, sister, hurt the most though."
"Sister, I still loved you then. You were just so blinded by your jealousy of me you couldn't see that. I tried to tell you, but you were already influenced by the Nightmare at that point, and then..." Celestia paused to sob, feeling hot tears coming to her eyes, "...I...I had to send you away. You have no idea how much I missed you, little sister, during those thousand long years without you. How lonely you must have been, too...it pains me to imagine that."
Luna sighed softly, feeling her own eyes welling up, before softly shaking her head, "That is in the past now, sister. Bygones. I am here now, you are here, and I still love you very much, sister," Luna paused thoughtfully, before making a decision. "Celestia, I would gladly accept you as my mate. My wife. If you so choose, I would also like for you to be the carrier of my foal. Mother to our foal who could possibly be another immortal alicorn, if it works like it did with Princess Cadenza and her daughter Flurry Heart."
Celestia was taken aback by the sudden proposal and suggestion of actually carrying her sister's child, but deep inside, she knew that was what she wanted. That she wanted to be Luna's and Luna to be hers, forever, and for her to carry her foal. "But..." Celestia started, before feeling Luna squeeze her a little tighter, silencing her.
"I will be beside you no matter what happens after your estrus ends, and no matter what you choose to do with my seed. I will always be beside you, as mother of my foals, as my wife, or simply as my loving sister. Always." Luna said, and Celestia could feel a new wetness on her back, hearing Luna sniffling too.
As she heard that, Celestia rolled over to face Luna, seeing her eyes glistening with tears and her cheeks' fur wet with the same. She pulled her little sister into a hug then, nuzzling into her neck softly and giving a content nicker. "I will gladly carry your foal and be your wife, Luna, because I really do love you too, the same way you love me." Celestia felt like this all was a dream. She'd been so afraid Luna would hate her forever back when she'd had to imprison her on the Moon. But here they were now, having had sex, declared their love, and Celestia would likely soon to be carrying the foal of her sister, her fiancée.
"B-but what about the other ponies? What would they think of their two princesses getting married? Then they'll learn that the foal is mine, and...they’ll know I’m more than just a mare..." Luna started, only to be startled into muffled mumbles followed by silence as Celestia once more met lips with her, kissing her as only a lover could.
"Forget about the other ponies for now and just think of us. We're together now, and nopony or nocreature will get in the way of that." Celestia said with a conviction in her words, pulling Luna closer as she rubbed her nose against her sister's, just like she used to when they were foals.
Luna meanwhile felt her heart flutter as she was held like that, feeling a certain pride in hearing that Celestia would carry her foal. She couldn't agree more that nopony else's opinion of them mattered as she lay there together, holding each other close, sharing their afterglows. Feeling Celestia's chest expanding against her own as her breathing calmed, her heart thudding against her chest...nothing would ever compare. "I love you so, so much, sister..." Luna whispered as tears stung her eyes again, burying her muzzle into Celestia's celestial mane after giving her new fiancée another soft, grateful kiss. Grateful for her accepting her, not only as her mate and foal-to-be's sire, but also as her sister. Her lover. Speaking of loving...
"Sister, I'm hard again." Luna said and, sure enough, her erect stallionhood was sandwiched between their chests, ready for round two. Neither had really noticed as they'd confessed their love to each other how much that was affecting their bodies, Luna fully erect again and Celestia feeling her heated need coming back again.
Celestia looked up with an amused expression, stopping her nuzzles to look between them at Luna's once again hard member. Celestia's heat reacted accordingly to the sight and scent of her mate's arousal, reawakening the fire that had just been doused inside of her so recently. "Already? I thought you said you'd need a break? But since you don't..." Celestia said, casting a quick spell. An aura surrounded her, shrinking her to roughly her sister's size.
Seeing Luna look at her with a puzzled expression, Celestia stood and placed her back legs at either side of Luna's head, her flank hovering above her muzzle with her own muzzle at her cock. "I never got to taste you last time, and now seems like the best time to get a taste of each other," Celestia asked, looking to Luna, "don't you think?"
"Sister, I would love that," Luna said, seeing Celestia smile in kind. Luna's cock throbbed, then she moaned as Celestia took her flare into her mouth once more.
Celestia moaned too as she felt Luna’s muzzle bury into her creamed pussy, suckling her sister’s cock, tasting her own fluids and Luna's sperm on it.
It was going to be a long night, and neither could wait. For more passionate sex, and for what the future may hold for them. Together.
Author's Note
* - missionary.
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If you enjoyed this story, please drop a like.
I may or may not continue this, as there's more of the RP this was based on left, but I'm quite busy and barely got even this done. We'll see, but for now I'm leaving it as a one-shot, as it will likely remain for a very long time. Hope you all liked it!
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Until next time, I'll see you all in the comments section or my next story. Au revoir et à bonne nuit chaque-poney!!!
