The Fertility Orgy

by Rahheemme

Rating: mature
Tags: Fetish, Comedy, Shining Armor, Princess Celestia, Sex, Twilight Sparkle, Slice of Life, My Little Pony: Friendship is Magic, Princess Luna, Porn, Princess Cadance
Length: 5896

At Celestia's annual orgy, Twilight wants to celebrate Cadance's pregnancy with a very special potion to set the mood.

Twilight is brought on as organizer for Celestia's annual Canterlot Orgy. With Princess Cadance nearing the end of her pregnancy, she themes the event around pregnancy and has prepared an untested potion she found in a book in the back of the library, written in a language she can't read, and passed out to every mare in attendance. Nothing at all will go wrong. Probably.

Published 2019-07-20 10:50:02 UTC
Last updated 2019-07-20 10:50:02 UTC

The Fertility Orgy

“Oh-kay, is everyone ready?” Twilight cast short glances between her clipboard and the ponies gathered under the tent in the Princess’ most secluded garden. Blankets, pillows, and plush cushions were piled from end-to-end, making it hard to stand on. Then again, it wasn’t really made for standing. Unless you were into that sort of thing.

“Excuse me, can I get everyone’s attention over here, please!” Twilight called out again, an irritated spark flashing at the end of her horn. It was already hard enough to get everyone to pay attention at normal events, but with so many attendants ready to begin the ‘festivities,’ Twilight had to be extra assertive to make sure things went according to schedule.

The crowd gradually fell silent and looked her way with a languid, disinterested gaze. Celestia and Luna were both lounging against the velvet curtains toward the back and seemed to be the only ones paying attention. Twilight’s brother, Shining Armor, was there with his wife, Cadance, who was far along in her pregnancy. The two of them chatted quietly to one another, suppressing excited giggles and taking turns stroking Cadance’s belly. Twilight huffed, but decided to be patient with them. They were family, after all, and had every reason to be excited.

The rest of the tent was populated with various Canterlot socialites, artists, and musicians. Twilight had worked very hard to ensure the attendance was an even split between mares and stallions, though they could ‘pair up’ however they wished. Lastly, a very select group of maids, attendants, and guards filled out the crowd. They technically weren’t allowed to participate, but they had a tendency to be pulled into activities during the heat of the moment. This was a popular post for palace guards in particular and the stallions’ excitement was palpable (as well as fully visible beneath their armor).

“Welcome, everyone, to the Five Hundred and Sixteenth AnnualSummer Solstice Royal Orgy!” Twilight called out with a happy flutter of her wings. A round of applause followed, mingled with a throaty cheer. Twilight saw eyes meet from across the tent as silent plans for the afternoon were being made. “I would like to thank, the Princesses, once again, for sponsoring this event and for giving me the opportunity to organize.”

“I couldn’t think of a better candidate!” Celestia yelled back over the crowd as a polite, if less enthusiastic, applause followed.

“Thank you, your majesty.” Twilight responded with a bow before flipping to the second page of her clipboard. “Now. This year’s theme is in celebration of Princess Cadance and Shining Armor, who are expecting the heir to the Crystal Empire any-”

Twilight froze as she glanced to her brother and scowled over her clipboard. He was already half-mounted atopCadance’s back when he met her eyes with an irritated frown.

“Shining!” she hissed.

“What?”

“Not yet!”

“Then get on with it, Twi!” Shining dropped to his hooves with an impatient huff.

A low chuckle rumbled through the tent and Twilight even caught Celestia suppressing a giggle. She groaned and flipped to the last page on her clipboard, skipping three pages of a very beautiful speech about the fertility of spring. There was even a song.

“The theme of this year’s orgy is pregnancy, in celebration of the Princess Cadance. Included with your invitations was a recipe for a potion that will create a short-term state of false pregnancy inmares that should wear off by the end of the day. Does everyone have their preparations?”

Every mare in the tent raised a jar, flask, goblet, or coffee cup full of a thick, glowing solution. It came from an old alchemy book Twilight had discovered in the back of the Canterlot library, a concoction of a dozen magic herbs, seeds, honey, milk, and flower petals easily found at any market in Equestria. The most important ingredient was a small drop of a stallion’s semen, which the mares were responsible for getting on their own.

“Please don’t drink until I give the signal,” Twilight instructed as she lifted her own glass of the potion, the secret ingredient supplied by a very close friend. The other mares raised their cups in a similar toast, turning them toward Cadance at Twilight’s direction.

“We dedicate this celebration of love to the fruitful season of Spring and the miracle of new life,” Twilight said while glancing at her notes. “For thousands of years, the fields, meadows, valleys, forests, and other plant-centric areas of Equestria have bloomed in the Spring. Spring is one of the four temperate seasons, following Winter and preceding Summer. The warm weather has contributed to the harvest and growth of new plants, which culturally has- Wait! Not yet!”

In the middle of Twilight’s speech, she caught sight of a mare tipping back her potion in one quick gulp before tossing her goblet to the side. Another to her side did the same with a devious laugh. One by one, every mare in attendance drank her potion, a chain reaction that reached all the way to the Princesses. Celestia drained her cup in three gulps alongside Luna before grinning sheepishly at Twilight.

“Ugh. Forget it.” Twilight tossed her clipboard over her shoulder and drank. With the amount of honey and milk in the concoction, she expected it to taste sweet, but it had a salty, heady flavor that made her body tingle. Smacking her lips, she looked between her legs and raised her wings to get a clearer look at her middle. There was a soft paunch there that she poked with a hoof, but Twilight was sure that had already been there. Her body felt warm, but not unlike after drinking a cup of tea or coffee. Nothing too out of the ordinary. None of the other mares seemed to be feeling anything, either.

“When is it supposed to start?” one of them asked, raising a hoof in the air.

“W-well, it can take some time for alchemical magic to really…get to work.” Twilight cleared her throat and trotted in place. “It needs a bit of time for it to really get into the system, but it should be-”

“Mmmmph...”

One of the mares, the one who drank her potion first, let out a deep, satisfied groan that broke the silence. She sat back on the cushions and panted, her mouth hanging open, and touched her hoof to a gentle swell in her stomach that hadn’t been there a few minutes ago. Somewhere else, another mare let out a similar noise, followed by a third.

“I think it’s…ummf...I think it’s working,” said the first mare. With another pleasured gasp, the slight curve in her belly suddenly expanded, pushing out her barrel a little farther into the unmistakable shape of an early-term pregnancy. Her friend, the second mare to drink, found herself in a similar state. After a brief moment of confusion, the two of them locked lips and fell into the cushions together.

Like a tidal wave, a rush of aroused moaning washed over the tent as the potion hit every mare at virtually the same time. Many of them fell into the cushions, caressing themselves as their bodies swelled out and grew through weeks worth of pregnancy in only minutes. Some of them were determined to stand and were the ones that grew more obviously than others. Celestia’s nebula mane pulsed with light as she stretched across the cushions with her hooves against her roundingstomach.

“Well,” she said with a breathy laugh, “this is certainly new.”

“Oh!” Twilight gasped as a sudden rush of heat filled her body, like a hot flash. It was quickly followed by a wave of arousal so strong she had to bite her lip to keep from moaning. Her stomach felt tight as pressure built somewhere deep between her back legs. Then, with a kind of pulse, she felt herself grow. Twilight panted and glanced down at herself, finding the beginnings of a baby bump that felt just as solid and real as if she’d really been pregnant.

“W-wow,” she said, trying to blink through the heady rush of arousal it gave her. “I re-really should be taking no-oooohhtes.” She moaned out loud before she could stop herself as her stomach began to grow again, quickly taking on the shape of a healthy, pregnant belly. It wasn’t a continuous growth, but came in pulses, a throbbing feeling that almost seemed in time with her heartbeat. Her body was getting heavier, softer, more sensitive as she and the other mares swelled through the stages of pregnancy, perhaps as fast as three weeks per minute.

Twilight’s felt her legs being pushed apart as he stomach widened, her sides bulging out until she couldn’t see her own cutie mark anymore. She waddled (which was a new sensation in itself) to a nearby stack of pillows and flopped on her back, both to better watch her own body’s growth and to keep an eye on the rest of the group. A few of the mares were already mid-coitus before they’d even finished growing, some of them with each other. Most of them, the two princesses included, were simply lying on their backs and enjoying the swelling feeling. The only exception was Cadance, who hadn’t needed to drink the potion herself. She and Shining had briefly forgotten their eagerness during Twilight’s speech and were watching the spectacle with a wide-eyed excitement as every mare, one-by-one grew as heavy and gravid as Cadance.

Twilight herself stretched her neck and groaned as another wave of growth made her stomach push out again. She was slowly losing sight of her back hooves as the purple hill of belly overtook them. Her navel was beginning to flatten out from the pressure of the false womb. Twilight could even feel the stirrings that she quickly realized were the movements of an imitation foal inside her.

“Th-this is…mmph...very re-realistic,” she mumbled to herself while exploring her new shape with a hoof. Every once in a while, Twilight stole a glance at Cadance to compare her illusory pregnancy to a real one. The princess was nine months along, still with another two to go. The other mares were nearing her size by the minute, leaving Twilight to worry when the growth would stop. Though she was confident in her recipe, Twilight had to worry about any mares that might have mixed it wrong or made extra.

Her thoughts were overtaken by another rush of pleasure as her belly grew again. She felt enormous, her middle was tight as a drum, and her barrel had grown twice as wide as her hips. When Twilight rolled onto her side and her weight shifted, she truly realized just how big she’d grown in less than fifteen minutes. She crossed her legs over her belly, finding it hard to breathe, and noticed harder and more frequent kicks from inside herself. Her teats, somewhere far below her swollen belly in no-man’s-land, were starting to grow alongside her stomach.

It even simulates milk production? Twilight thought. This is a very impressive spell. What purpose could it have possibly served.

With a last, final throb, her belly swelled again, pulling so tight Twilight could practically feel her skin straining. She nearly reached orgasm just from this last growth spurt. Judging from the cries in the tent, some of the mares actually did.

As suddenly as it stopped, it was over. The warmth slowly faded from Twilight’s body, leaving her panting in the afterglow of pleasure and pinned down by her heavily ‘pregnant’ belly. The others had grown just as big, leaving the tent looking more like a prenatal yoga class than an orgy (if it weren’t for the couples already rigorously fucking, that is). Most striking of all were the princesses, who’s bellies had swelled to sizes befitting the tall alicorns. Celestia in particular seemed the most maternal as she rose to her hooves and practiced walking with the pendulous weight of a late-term pregnancy weighing her down. Luna hadn’t even bothered rolling off her back and was lying on the floor with a serene glow on her face as she stroked her velvet-soft belly.

“Hm.” Twilight sat up as best she could and touched a hoof to her stomach. Something about it felt ‘off,’ but she wasn’t in the right state of mind to figure out what it was. “Seems very….solid,” was the best she could come up with.

Twilight rocked back and forth on her stack of pillows before managing to stand. The weight of her belly was incredible, pulling on her back like she’d swallowed a bowling ball. She couldn’t bring her back legs together, so she had to trot with a wide, awkward hobble. The other mares were having similar difficulties, but they laughed and chatted in good spirits, excited as they explored their (and other’s) new bodies. At least Cadance had a few months to get used to her size. Twilight and the others had jumped right to the end with no preparation.

“Oof,” Twilight huffed as she tried to walk across the room. Her belly bounced and swayed with each hoof-fall, made all the more cumbersome by the always-moving ‘baby’ inside her. “This is…this is heavy for just an illusion spell.”

Now that the spell had taken effect and the mares’ bellies fit the theme, the orgy finally began in earnest. Couples paired up to enjoy one another, taking advantage of the new pleasures a pregnant body could provide. The first mare, who’d jumped the gun, was lying on her back and caressing her belly while her friend lay on her side and lapped between her legs. Another mare was doing her best to keep upright under the weight of both her stomach and the stallion mounted on her back. Twilight stopped to watch with half-curiosity, half-arousal at the way the mare’s belly rocked and bounced with each thrust of the stallion.

“Well, at least everything went according to plan,” Twilight said to Cadance as she waddled near her. The expecting princess laughed and trotted around Twilight, her own slow gait a skipping dance compared to the others’.

“You look amazing, Twi!” Cadance said cheerfully, stopping to touch a hoof to Twilight’s taut sides. “Wow, this really looks like the real deal. You look like you’d be carrying a draft stallion’s foal if there was actually a baby in there.”

“Could’ve fooled me,” Twilight said, shifting as another simulated kick made her wince. “I’m amazed, honestly. This isn’t like any illusion magic I’ve ever seen. It feels so…corporeal.”

“Then it’s nice you can walk a mile in my horseshoes,” Cadance giggled. “At least you can enjoy some of the perks before it-Oh!” She gasped and flicked her tail. Twilight wasn’t sure why until Shining poked his head from around his pregnant wife’s bulging sides.

“Hey Twi, great job on the spell, everybody’s having fun,” he said with an impatient furrow on his brow. “But you mind if Cady and I get involvedfor a bit?”

“Oh…um, s-sure.” Twilight backed away and cleared her throat. Even if she was accepting of her brother’s active sex life, she still didn’t want to watch him fuck Cadance in front of her.

“I think you’ve got the right idea,” Cadance said as Shining mounted her and she tipped her head back to look him in the eye. “Put on a show, Shiney. Show them how to get knocked up the old-fashioned way.”

“WellhereIgotocheckonthepartyYouguyshavefunBye.”

Twilight spun around and nearly lost her balance under the shifting weight of her belly, but kept her balance and quickly waddled to the other side of the tent.

As she got used to moving while so heavily pregnant, Twilight’s frown grew deeper. She was an expert at illusion magic and had cast much of it on herself over the years. Even under the most realistic glamor, she could feel a slight tingle where the illusion ended and her body began. She could still feel herself beneath the spell. The pregnancy spell, however, was almost too real.

“Maybe it’s not appearance-based,” Twilight pondered as she sat near a mare being spit-roasted by two stallions, too lost in thought to even notice. “Maybe it’s simply an induction of the mare’s natural anatomy, tricking her body into making it think she’s pregnant.”

“How’s it going, Twilight Sparkle?” said a good-looking stallion with a long, blonde mane and a raging erection. She didn’t know him. “Nice job on the spell. I never thought I’d go for pregnant mares but…Hey, learn somethin’ new every day.” He glanced down at her belly and gave her a gentle rub with the edge of his hoof. “You fuck anybody yet? I’m likin’ the way this sorta fills you out, y’know?”

“Sorry, can’t.” Twilight struggled to her hooves and waddled away from the stallion, still lost in thought. “Too much to do.”

Twilight spotted Celesita through the moaning, pumping, rocking crowd of ponies. She wasn’t hard to find given her new size. Twilight shuffled around the tent, stepping over spooning couples who’d already finished their first round and were basking in afterglow while resting up for the second.

“Princess?” Twilight asked quietly as she got near. “Princess Celestia, I need to talk to you. There’s something off about the spell, but I can’t tell…” She trailed off and frowned at the odd, cross-eyed expression on the princess’s face.

“Twilight, listen,” Celestia said with a breathless pant. “I would…ahh...I would normally adore a chat about this – oh – this spell of yours but I’m…I’m…I’m a bit busy at the moment, I’m afraid.”

Twilight leaned around Celestia’s gravid sides to spot one of the palace guards face-deep between her legs while a familiar aura of glowing magic stroked his cock.

“Oh. S-sorry, then.”

“Why don’t you a-aaaaAAAsk Luh-Luna, dear?” Celestia suggested, trying to talk while her face contorted in pleasure. “She’s free at the mo-HOH-ment. Usually takes her time at these thi-things.”

“Good idea, thank you princess.”

“Amazing work, Twilight. It feels just like the real thi-OH!” She tossed her head back and stomped one of her hooves. “Yes, right there!”

She could tell Celestia wasn’t in the mood to talk shop at the moment, so Twilight carefully backed away in search of Luna. On the way, she accidentally stepped on some hair and found it attached to the mane of a teal mare, lying on her back with her shapely belly in the air, while a stallion with a mustache was busy rutting her.

“S-sorry!” Twilight spluttered. The mare blinked up at her with a blissful smile before reaching up and touching Twilight’s belly.

“You look ready to drop, Princess,” she purred before stroking her own middle as it bounced and swayed under her partner’s thrusts. “We both do…”

“Th-that’s the idea,” Twilight said before carefully stepping off the mare’s hair. “Have you seen Princess Luna?”

“She’s near the back. Enjoying herself.” The mare sat up to look at her partner, who had stopped thrusting for a moment to catch his breath. “Almost makes me want to give the real thing a try.”

“I knew you’d come around to the idea,” the stallion panted.

“Not if you don’t keep going,” the mare said with a huff. “I need to know what it feels like to climax like this.”

Twilight left the couple to finish and waddled to the back of the tent, where the private areas were. They were rarely used since most considered the point of an orgy for everyone to see you fucking, but Twilight always made sure they were there for liability’s sake. On the way there, she stopped and had to spread her legs to keep upright as whatever was in her belly turned over. She raised a wing and watched with a frown as her stomach shifted and a lump pushed out from inside her.

“What is this spell?” she asked herself once the ‘baby’ stopped moving.

Luna had one of the private rooms to herself and was lying on the soft, cushioned floor with her wings spread from wall-to-wall. Her head was pointed toward the entrance and supported by a pillow. With her eyes closed, Twilight would’ve thought she was asleep had it not been for the deep, satisfied groans coming from her throat. She was pinned beneath her hill of a belly, stretched into an oval shape by her torso. Luna stroked and caressed herself with her front legs while her back legs kicked lazily at the air.

“Princess Luna?” Twilight whispered as she crept inside. “Sorry, am I bothering you?”

“Twilight…” Luna moaned, her voice low and thick. “Mmm…thou art welcome, here. Please, enter.”

Twilight wobbled inside, her hooves sore from the extra weight she carried, and approached the sprawling, engorged form of the princess. A wet slapping sound caught her attention and Twilight glanced around Luna’s belly to find she’d enchanted a dildo to dutifully pleasure her while she relaxed.

That’s the twelve-incher. Popular one, Twilight reminded herself. Need to get a replacement from the back.

“Thou has done wonders with this concoction,” Luna said. Twilight watched something kick out from inside her. “I truthfully feel I am with child, a new and thrilling experience. Many a year it has been since one of Celestia’s pleasure celebrations filled me with such excitement.”

“Glad you like it,” Twilight said, finding it hard to keep her eyes on Luna’s face while her stomach seemed to draw her attention in. “Princess, lunar magic is especially adept at illusion spells. Do you feel anything… strange about this spell?”

“Verily, most illusion spells are derived from my domain, but there are many that were created outside my realm of influence.” For the first time, Luna peeked open one of her eyes, her gaze traveling down Twilight’s gravid sides. “Tis not unusual to find such magic in old texts. Tis most unusual to find one so effective.”

“Well…it was a really old book,” Twilight said, tapping her chin.

“This fullness,” Luna moaned, the wet slap of the toy coming more frequently. “This warmth. This burden of life. I never dreamed it would contain such pleasure. I expect thous’t potion will become most popular on mine lonely nights.” The princess hooked one of her legs around Twilight’s and pulled her closer. “I beseech thee, stay a while. Let us share in this gravid ecstasy you have given us.

“Sorry, gotta keep the party going smoothly,” Twilight said, stepping out of Luna’s pull. “Maybe later.”

“Please, return once thy duties are fulfilled,” Luna said before rolling over and arcing her back in a way that pushed her belly higher into the air.

Back in the main tent, most ponies had gotten their second wind. Their inhibitions were loosening as their cries of pleasure grew louder, mingled with the slick, rhythmic sound of flesh against flesh. Many had switched positions. Across the room, Shining had flipped Cadance on her back and was holding her upright by the hips with his snout buried in her pussy. Celestia was doing her best to ride the guardsman that had been eating her out, but she could hardly see him beneath her belly.

A mare near Twilight was standing with her legs wide apart, another mare caressing her pendulous belly from underneath while a stallion was balancing on his back legs with his cock in her mouth. A second stallion was at her backside, suckling on her swollen teats as one of them issued a stream of milk that dribbled onto the cushions.

“Induced lactation…” Twilight said as she produced a paper and quill to jot down her thoughts. “Fascinating.” She waddled back to her stack of pillows, making sure to stop and check on the coolers of ice water and orange slices. Part of her wanted to get involved with the festivities, to find a stallion to fuck silly her newly-pregnant body, but her head was too preoccupied with the strange effects of the spell. She knew she wouldn’t enjoy herself until she got to the bottom of it.

Twilight’s hooves were throbbing by the time she rolled off of them. Her heavy belly pressed down on her hips and made her occupant kick and squirm from the motion. After a moment of concentration, Twilight bit her tongue and summoned the old spell book from her room with a soft poof. She flipped it open to the recipe for the false pregnancy potion, but heard someone approaching before she could read.

“Good afternoon, Miss Sparkle,” said a melodic voice with a slight accent. It belonged to Octavia, a musician from Ponyville. Twilight didn’t know her well, but she was a friend of Cadance and the only other Ponyville resident at the orgy. Like Twilight, she appeared vastly pregnant and seemed happily, blissfully tired from an afternoon of activity.

“Hi Octavia. Having fun?”

“Marvelous time,” she said with a light chuckle before sitting on the floor. When she did, the sides of her belly bulged out far enough for hers and Twilight’s to touch. “Bit of a strange theme, but I’m having a grand time.”

“I wasn’t so sure how it would go over, but I’m glad everyone’s having fun.”

“Everyone except you, it seems,” Octavia said with a knowing look.

“Well…I just…I’m trying to keep everything organized and…”

“Doesn’t seem like an orgy needs much direction, does it?” She nodded to the crowd of high-society ponies fucking one another like wild animals. “Put out some water and do the washing up after. That’s all it takes.”

“Well…I still want to take another look at the recipe for this potion,” Twilight said while tapping the book resting on her belly.

“And who says you can’t multi-task?” Octavia grunted as she stood and trotted in front of Twilight before laying down on her side. Octavia rested her head on Twilight’s belly with a little smirk on her lips. “How about I just enjoy myself down here for a bit, yeah?”

Twilight at first meant to decline the offer, but could already feel herself getting wet at the idea. She bit her lip and tried to think of a reason to say no, then wondered why she was bothering.

“Well…Just go slow, okay?”

“Happy to,” Octavia said with a smirk before taking her head of Twilight’s swollen belly and disappearing between her legs. Twilight picked up the book, but nearly dropped it once she felt Octavia’s soft tongue against her sensitive, swollen pussy. She squirmed and tried instinctively to bring her back legs together, but found she couldn’t with her stomach in the way. Twilight cleared her throat and began to read again, a soft moan issuing from her throat as Octavia pleasured her at the same time.

“Ooo-Okay. Suh-So. H-Hhhere we go.” Twilight cleared her throat and began reading out loud to keep herself focused while a warm, enveloping pleasure between her legs threatened to distract her. She could feel her own breath blowing back at her as she panted against the pages, trying to decipher the foreign language while her head swam. Octavia rolled onto her back with her legs in the air, her round belly jiggling slightly, and lapped at Twilight’s pussy upside-down.

“So that’s t-two teaspoons of phylatica flower,” Twilight read to herself. “Ground nubian c-carrot, an ounce of…of…” Twilight dropped the book face-down on her belly and let her head fall back as Octavia held onto her thighs and began to tongue deeper. “O-Oh my…it feels…I’ve never…” She bit her lip and felt herself rocking her hips into the other mare’s muzzle. The weight of her belly was pushing down on her cervix, making everything between her legs so much more sensitive. Even the kicks and thumps from the illusory foal inside her were starting to feel good.

Twilight covered her mouth to suppress a loud, breathy cry as she hit climax. It usually took ten minutes worth of pleasuring and teasing just to get her in the mood, but Octavia had brought her to full orgasm in barely nintey seconds. As she flopped back and shuddered in the afterglow, the book toppled off her belly and bounced onto a nearby cushion.

“I…I never…I don’t usually…” Twilight gasped as she met eyes with a pleased Octavia, who was wiping her mouth on a nearby pillow. “I don’t usually finish that fast.”

“Hormones, I expect,” Octavia said with a prim and proper tone, as if she hadn’t spent the past few minutes face-first in Twilight’s cunt. She rolled onto her side and tapped her belly. “Your little party favors are really doing the trick, aren’t they?”

“More than I expected,” Twilight said. She shuddered as a happy aftershock hit her. “I was trying to figure out why, but I just…I couldn’t pay attention while…”

“Well, you certainly looked like you needed it,” Octavia said, stroking Twilight’s belly.

Twilight reached for the book at her side, but Octavia got to it first and flipped open to the bookmarked page near the middle.

“Is this Yakistani?” she asked, tapping the page.

“You can read Yakistani?”

“I went to music school, of course I can.” Octavia propped up the book between Twilight’s thighs like a lectern – Twilight herself found it almost more erotic than the oral sex she’d just received.

“’An alchemical solution for rapid pregnancy,’” Octavia read slowly.

“No, not ‘rapid.’ Temporary,” Twilight said.

“That’s a different word. This means ‘rapid.’ Quick. Shortened.”

“N-no, that can’t…” Twilight snatched the book from Octavia with magic and squinted at the page. “I’m right, this word means ‘within a shortened period of time.’”

“But that doesn’t mean ‘temporary.’” Octavia raised an eyebrow. “Just that it will reach its conclusion faster than normal.”

“But that just means it will end soon, right?”

Octavia blinked at her.

“Twilight,” she said, “what happens at the end of a pregnancy?”

“I…I don’t…No, this…It’s just an illusion, it’s just magic, it’s…It’s…”

With a sinking feeling in her chest, Twilight read the potion recipe over and over again, even summoning a Yakistani dictionary from the library. Nowhere in the text did she find the words fake, illusion, false, or temporary.

“No…No, this can’t…It can’t be real, not without a…” Twilight froze, remembering the last, most intimate ingredient of the potion. “Oh my God, it’s real.”

As if on cue, a sharp kick from the very real foal in her belly startled Twilight. With a quick, panicked spell, she summoned a magic mirror from the relic room in her castle, one created by an ancient doctor. She spoke a few words into the glass, then held it against her bulging stomach. Slowly, the reflection faded and was replaced with an inside view Twilight’s uterus and the very real, very solid, and very large foal curled up there. The mirror trembled as she brought it down against Octavia’s belly, revealing a similarly sized foal with a pair of short wings inside her.

“Well now,” Octavia said, her eyes wide. “That certainly looks like him, doesn’t it?”

Twilight dropped the mirror and rolled to her hooves, suddenly very concerned about putting too much weight on her belly. She stood atop a pile of pillows, her legs trembling and watched the crowd of reveling mares, heavy with the families they didn’t know they were about to start.

“E-excuse me,” Twilight tried to call out, but it fell out of her mouth as a faint whisper. She cleared her throat, tried to speak again, but only let out a tiny squeak instead. After a few deep breaths and a few glasses of water, Twilight summoned a megaphone.

“Excuse me,” she spoke into it, the sound cutting through the pleasured moans and groans of the orgy. The rutting ponies stopped mid-coitus and impatiently turned to glare at Twilight. Even Celestia looked annoyed while the guard stallion still buried balls-deep inside her took the opportunity to catch his breath.

“H-Hello everyone! Ho-Hope you’re having a g-g-g-good time!” Twilight said with a pained smile. “Just a quick announcement to make! It seems that there has been…the potion, that is…There was just a tiny mistranslation in the recipe that you should be aware of.” She paused to stall, but only stared at the crowd with a blank smile. “It appears that…uhhh…this is not an illusion spell.”

Silence. No one moved but the foal in Twilight’s womb.

“So what do you mean by that?” asked a unicorn mare lying flat on her back in the middle of the room. “What exactly is not an illusion?”

“The…the pregnancies are…not an…illusion.” Twilight cleared her throat as the feedback on the megaphone made a harsh tone. “You are…We are all…actually. Pregnant. Now. Today.”

The tent, which had been just a moment ago filled with the pleasured voices of more than a dozen ponies, was deathly silent. Celestia blinked at her from across the room with a flat expression. Luna waddled out beside her with a confused frown before her sister whispered into her ear. Shining Armor and Cadance were staring at Twilight with their jaws hanging open. Twilight herself had a strained grin locked on her face, but was wondering how best to raise a child in anonymous exile on the other side of the planet.

“…Okay,” said the unicorn that had spoken earlier. She turned and shrugged at the stallion above her. “We can live with that.”

“What’s really the point of an orgy if somebody doesn’t end up pregnant?” said another mare.

“My husband and I were hoping to conceive at this orgy,” said a third before glancing down with a warm smile at the stallion whose cock she was riding.

“We’re going to have a family!” cried out the mare who first drank the potion before embracing her equally pregnant ‘friend.’

“We’ve been needing some heirs to the throne, anyway,” Celestia nodded to Luna. “We were going to get around to it eventually.”

“Maybe now Mom will get off my back about it,” Octavia mumbled beside Twilight.

“It’ll make a good story,” said the teal mare to her mustached husband.

“When they’re older, of course,” he replied.

Rich people are really weird, Twilight thought to herself.

“Might as well enjoy it while we can,” said a mare to her partner, the green stallion who’d propositioned Twilight earlier in the day. “We’ve only got a few more weeks before the-”

“One other thing!” Twilight said into the megaphone with an awkward laugh. “I uhh…So with the potion portioned to last only a few hours, I expected it to wear off by the end of the day. But since this is a real pregnancy, and a real pregnancy doesn’t exactly wear off as much as…uh…” Twilight lowered the megaphone and swallowed before glancing at the setting sun on the horizon.

“How long do we have?” asked a nearby mare.

“Four…” Twilight said.

“Four what?”

“Three…Two…One…”

Exactly on cue, the moment the sun sank below the horizon, a mare in the middle of the crowd gasped and sank to her haunches. A circle opened around her as a damp spot soaked into the cushions around her. Another cry came from the back, followed by a sudden splash of liquid, then a third.

Twilight flagged down one of the maids, already feeling a sharp twinge in her belly.

“We’re going to need a lot of towels.”

Author's Note

Special thanks to Patch for the pic that inspired the story!