Sci-Twi’s Shrinking Accident

by Typist Gray

Rating: mature
Tags: Pinkie Pie (EqG), Comedy, Equestria Girls, Porn, Sex, Fetish, Science Fiction, Sunset Shimmer, Profanity, Twilight Sparkle (EqG)
Length: 12826

Sci-Twi accidentally shrinks most of her friends, and shenanigans ensue.

Sci-Twi from Equestria Girls wants to show her friends this awesome new machine. To the surprise of absolutely no one, things don't go as planned, and everyone present shrinks. Normal shrinking shenanigans ensue, followed by less normal occurrences. In fact, things get downright lewd because Pinkie just can't help herself.

Contains vore, lesbian orgy, masturbation, and shrinking.

I'd like to thank MovieLord101 for commissioning this story.
If you'd also like to commission something from me, or just support my work, please check out my SubscribeStar https://subscribestar.adult/typist-gray

Published 2022-03-21 10:00:01 UTC
Last updated 2022-03-21 10:00:01 UTC

Chapter 1: Sci-Twi’s Magical Experiment

Twilight, or Sci-Twi, as her new friends nicknamed her, was down in her basement. This wasn’t abnormal, as she used to always spend her Saturdays cooped up in the dimly lit room with nothing but her research and experiments to keep her busy. Luckily, she’d become more well-rounded since a certain fateful incident at Canterlot High, introducing her to many fabulous friends who worked diligently to pull her out of the basement and into the light. However, that didn’t mean the introvert stopped going into the basement altogether. She still needed breaks from social activity. However, this time was a peculiar blend of the two.

As Twilight typed at the computer, she checked her phone as, one by one, her friends all sent texts confirming they were on their way. All except Pinkie, who was delayed, but that wasn’t a big deal. Fluttershy was also busy all day, which was more disappointing, but the purple girl just had to make a mental note to tell everything to her yellow friend later. Finally, Twilight turned to her latest invention, the machine that looked like she’d stolen it from the 60s with all the electric tubes, the tesla coil, and all the blinking lights. She then grinned as her more modern computer read green across the board. “Yes, everything’s working,” she said with bubbling excitement.

There came a knock from the basement door as it opened.

“Twilight, darling. Are you down here?” Rarity asked as she poked her head of purple hair through the door crack.

“Pssh. Of course, she’s here,” scoffed Rainbow as she casually pushed Rarity aside and started marching down the stairs. “It’s Saturday. What, did you think we’d catch her in her room with a date?” she asked with a snorting chuckle.

Rarity huffed as she followed after Rainbow. She hated to enter without proper warning, but the damage had been done. “It’s only proper for a lady to ask.”

“Sorry, Twi,” Sunset said as she followed the bickering pair. “You didn’t answer the doorbell, so we let ourselves in.”

“‘N’ don’t worry,” Apple Jack added, tipping her Stetson. “Pinkie ain’t here yet, so no one’s gonna try raidin’ yer drawers.”

Twilight finally turned from her experiment to face her friends. “Yet, being the keyword there.”

“Honestly, I don’t know what’s gotten into that girl lately,” Rarity remarked.

“I keep telling ya. She’s hunting for dirty magazines,” Rainbow cut in. “She did the same with me. I only got her to stop by buying one just for her to find.”

“Ugh, so vulgar.”

“Yeah, sure. Like you don’t flick the bean, like the rest of us,” Rainbow teased.

“A lady does not ‘flick the bean’ like some common ruffian.”

“Yeah, Rainbow. Be reasonable,” Sunset cut in, trying to be the voice of reason. “Rarity’s a sophisticated girl who draws a hot bath with rose petals.”

“Yes, that’s precisely—Hey!” Rarity snapped.

“Who even keeps dirty magazines like that, anyway?” AJ asked. “Everyone uses the internet for that stuff these days.”

“On an unrelated note, is Fluttershy coming?” Sunset asked. “And what about Spike?”

“Oh, Spike’s getting dewormed at the vet, so he’ll be back tomorrow,” Twilight answered. “Fluttershy didn’t specify what she was doing, only that it would take all day. Anyway, what do you guys think?” She spun on her swivel chair and dramatically gestured at the sparking machine. “Pretty cool, huh?”

A thread of electricity climbed between the coils, only to discharge with a loud zap at reaching the top, startling everyone.

“Uh, Twilight,” Sunset nervously began. “That looks super dangerous.”

“You don’t even know what it is,” Twilight argued.

“Hmm, I’d say it has a more retro look,” appraised Rarity. “The design is sleek, compact, but radiates with an almost nostalgic energy. However, it also looks dangerous.”

Twilight deflated. “Come on, guys. It’s fine. I’ve been studying Equestrian magic, and I’m on the verge of a major breakthrough. If my calculations are correct, I will soon unlock the secrets of teleportation!”

“Tele-what-now?” AJ asked.

“Teleportation,” Sunset clarified. “Unicorns call it winking. It’s where we channel our magic to disappear from one spot and appear in another without physically traversing the distance.”

“Neat, but that kinda just sounds like an excuse not to walk anywhere,” assessed Rainbow. “You’ve already got little noodle legs as it is, so you don’t need an excuse to exercise less.”

“This isn’t about daily exercise,” Twilight insisted. “This is about revolutionizing transportation. Think about it. With teleportation, cars, boats, and even plains will be rendered obsolete. People can just teleport from one spot to another. Better yet, we can send goods to the other side of the planet in less time than it takes to finish this sentence,” she excitedly gushed, a little annoyed that her friends weren’t seeing the big picture.

AJ skeptically hummed. “Sounds like yer plannin’ ta put all the truck drivers out ‘f business.”

Twilight’s smile flattened. “Okay, so, maybe innovation of this scale will disrupt the status quo a little.”

“Twilight,” Rarity hummed. “I’m not much of a Scifi watcher, but even I know all the things that can go wrong with this stuff. How are you going to keep people from fusing with flies? Follow-up question on Fluttershy’s behalf: is there a way to safely fuse with something soft and cute, like a kitty?”

“The answer to both questions is testing,” Twilight assured, happy for her audience’s engagement. “I’m starting with sending small, inanimate objects over short distances. Then, I’ll slowly work my way up to bigger and longer things, and eventually graduate to something organic, like a slab of meat.” Twilight then asked Rainbow, “What’s so funny?”

The rainbow-headed girl slapped a hand over her snickering mouth. “Th-that you don’t know m-makes it even funnier-er.”

“Honestly, Twilight,” Rarity chided. “I hate to say it, but Rainbow is right. We need to get you out more so you can learn how to avoid such vulgar phrasing.”

“At least, Pinkie ain’t here,” AJ noted. “She’d probably give ya a crash course in dirty jokes, like it ‘r not.”

Zeroing in on the part she understood, Twilight checked her phone. “Yes, she said she was running late, but she didn’t say why.”

“I’d also like to add that winking is a high-tier spell,” Sunset informed. “You have to practice for months for a test that most ponies don’t pass until their third try.”

“Come on, Sunset,” Twilight whined. “With your instruction, I’ve already had so many successes. Remember how I boiled that egg?”

“It turned to ash.”

“I meant the fifth time.”

“Or how about when you brought that dress to life,” reminded a scowling Rainbow.

Rarity swooned. “It put itself on Rainbow and forced her to dance the tango. Oh, it was lovely.”

“Eh, it was kinda cute,” AJ added to Rainbow’s annoyance.

“The point is that I’ve had more successes than failures, and I’m ready to move onto the next step. Look.” Twilight gestured at a pair of cylindrical glass containers with metal casings. “I’ve already teleported a penny point two meters away with no apparent damage.” She then held up the coin for emphasis.

Sunset stepped forward to examine it. “Uh, okay. That’s actually part of the practice procedure. So, good job,” she praised. “Well, it looks like you’re following safety protocols, so I guess it’s fine.”

“Is that what you wanted to show us? An already-teleported penny?” Rainbow asked. “Lame.”

“Not at all,” Twilight assured. “I actually hoped I could get your help. See, so far, I’ve been using ambient magic in the air as a power source, but that’s not too efficient. So I was hoping that you guys could lend me some of your magic.”

“Twilight,” Sunset began to chide.

“I just need a smidge,” Twilight insisted. “Like, as much as you’d use to levitate a penny over a meter. My machines work off of an evolving algorithm, so it’s designed to adapt as it’s exposed to new variables. Once the algorithm gets a taste of what real magic can do, it’ll be able to learn to achieve the same result with the limited ambient magic. Trust me; it makes sense.”

All eyes turned to Sunset, who answered, “It kinda does, actually. Whoa, so you put this together all on your own?”

“Sort of. This beauty is the result of years of trial and error, not to mention advice from my favorite study buddy,” Twilight added while averting her gaze and blushing.

Sunset’s cheeks also tinted red. After so long away from Equestria, it had been wonderful to talk magic with someone who actually got it. Plus, Twilight was pretty fun to hang out with. Sunset brushed some hair from her face as she said, “Well, so long as it’s just a smidge.”

“Ya sure, sugar cube?” AJ inquired.

“It’ll be fine,” Sunset assured. “I have the most experience using magic, so I can turn it off if anything goes wrong.”

“Yes, my thoughts, exactly,” Twilight confirmed. She then turned to the others and added, “You guys are here to witness my greatness. Afterward, we can go out for shopping and milkshakes.”

“You see, darling, that is what we call burying the lead,” Rarity instructed. “Next time, mention that part first.”

With that, Twilight made the last-minute adjustments to her machine, ensuring everything was in place for the experiment. “Alright, we’re good,” she said while typing away. “Now, pull ze switch!” She threw her arm up in a dramatic flourish while the others chuckled at their dorky friend’s antics.

Sunset smiled as she closed her eyes and focused. It took a lot more effort to channel magic in her human form. However, like Twilight, lots of trial and error had left her pretty proud of her proficiency. Measuring what she thought was less than the minimum necessary for the intended feat, she extended her hand and channeled the magic into the machine. The engine began whirring with newfound life as the lights lit up.

“Yes, it’s working,” Twilight said, her pulse racing as all the charts read green. “Just, maybe, another half-watt should do.”

Sunset nodded and again gave slightly less than the minimum. The last thing she wanted was to overcharge things and fry Twilight’s life’s work. The cylinders began glowing with the same green hue as Sunset’s eyes. All appeared well. Then, an alarm sounded.

“Oh, no! Wh-what’s…” Twilight trailed off as error messages popped up and blanketed her screen. “Sunset, stop!”

“I… can’t!” Sunset screamed, trying to cut off the magic. “S-something’s, ugh, pulling… me… Gah! Does anyone have a tennis ball?”

“What good would that do?” demanded Rarity.

“Screw it! Jus’ pull ‘er!” AJ wrapped her bulky arms around Sunset’s middle with no regard for the girl’s modesty. The freakishly strong farm girl pulled with all her might, but the former bully wouldn’t budge.

Not needing to be told, Rarity and Rainbow also threw themselves at their friend. Unfortunately, all three focused so hard on the physical strain that they didn’t notice the girl’s glow was intensifying. Nor did they notice the faintly warm tingle building in their chests.

“Agh! Now what?” Twilight screamed. “Even more power’s going into the… wait.” She turned to see her four friends now sporting glowing ears and tails. As an explanation finally clicked in her head, she only had time for two final words. “Oh, crap!”

Then there was a bright flash that engulfed the whole basement.

Chapter 2: Twilight Shrank Us?

Everyone’s ears rang as if from a mighty explosion. Their vision was also blurred, able to see nothing but dim light and broad shapes. Each of the girls fumbled about in their slightly stunned states. Most tripped over the uneven floor.

“…wi! …wi!”

Twilight heard the distant voices and tried to call back. “Hello?” Her voice sounded just as muffled and far away. “Hello. Sunset? Girls? Anyone.”

“…wi! … Twi! Twilight, darling! Can you hear me?”

“Rarity, yes. I hear you, but I can’t see. Where are you?”

“Twilight, you’ve got to fix this, quick,” Rarity whined. “I *sniffle* think I might be n-naked!”

“Is that what you’re worried about?” Rainbow asked, also noting a faint chill on her bare skin. “I’m half-blind and—Oof! I keep tripping on this—I don’t even know what. Are we in some kind of blanket dimension? Cuz I think I keep tripping on one.”

“Everyone, remain calm,” Sunset assured. “Our vision should return shortly, just like our hearing.”

“Sunset, please tell me ya know what’s goin’ on,” AJ called before grunting in pain. “‘N’ tell me there ain’t actually a blanket dimension.”

“No. Well, not that I’m aware of. Look, let’s retrace our steps to figure out what happened,” Sunset instructed as the group’s de-facto leader. “I remember something draining my magic. I was deliberately putting in below the minimum to avoid overdoing things, but… I’m not sure. Something just started pulling.”

“Ah think Ah started ta feel that, too,” AJ confirmed. “Right after Ah grabbed ya, it suddenly felt like Ah was bein’ drained.”

“Yeah, it was like I suddenly ran ten laps around the track every few seconds,” Rainbow added. “Also, yeah, I’m naked, too.”

“Twilight, did the computer say anything?” asked Sunset.

“Nothing definitive, but I think I have a theory,” Twilight replied as she blindly stepped toward the other voices, sounding suspiciously distant and far below. “I looked at you guys, and you were glowing with Equestrian magic. Ears, tails, wings, and everything. It may be that your proximity to Sunset confused the machine, so it took more than it should have. I think it may have—Ugh!”

*Thud*

“Ya alright, sugar cube?”

“I ran into something,” Twilight reported as she reached out to touch what she’d run into. “Um, it’s hard, cool… It kind of feels like glass, with… with a plastic rim.” After feeling out more, she added, “Uh, girls, not to alarm you, but I think I’m touching a giant pair of glasses.”

“Twilight, we’re naked and trapped in some bizarre fabric dimension,” Rarity ranted while rubbing her shoulders for warmth. “Honestly, under better circumstances, that might be rather enjoyable, but right now, it’s quite upsetting. What precisely is so alarming about a pair of giant glasses?”

“B-because I think they’re mine,” Twilight answered. After that, all went deathly silent, save for the steady and familiar whirring of the machine.

“Ya wanna clarify that, Twi?” Rainbow warily requested.

“The glasses. They have the same damage marks and tape as mine. I’ve been meaning to get a new pair, but I’m pretty sure that these are just a larger version of mine. Also, I’m now feeling out the fabric floor, and it smells an awful lot like when I spend so much time working that I forget to change clothes.”

“Honestly, Twilight!” Rarity chided.

“Uh, can confirm,” AJ fretfully added. “Ah worked up a decent sweat doin’ chores this mornin’, ‘n’ this stuff smell jus’ like me.”

“Well, my floor does have the same perfume I picked out this morning,” Rarity admitted. “Also, the material has the same silky softness as the blouse I picked out.” She audibly swallowed. “Twilight, I’m almost afraid to ask, but—”

“Did you shrink us?” Rainbow blurted.

Slowly but surely, the blurs solidified as everyone’s vision returned. The girls were able to see their hands in front of their faces and then their bosoms below their chins. Finally, after several excruciatingly long seconds, the girls beheld their surroundings. They were still in Twilight’s laboratory basement. Everything was how they’d left it before the experiment, except for their clothes lying limp around them and how everything had grown gigantic.

“Uh, my working theory would be: yes,” Twilight admitted, hands over her purple chest as she looked over the side of her swivel seat.

“Dang it, Twi!” AJ barked, hands over her chest and crotch. Although, little could be done to conceal her thick, golden bush. “This is not how Ah wanted ta spend mah afternoon.”

“Yeah, Twi,” agreed Rainbow, immodestly not covering herself. “You need to at least set up a safe word when doing this stuff.”

“Rainbow!” AJ snapped.

“What? You’re the one who told me to—”

“Not. Now,” AJ replied through clenched teeth. She made sure to fully face her blue (secret) friend with benefits, not wanting the perverted athlete to try anything. “Sunset. Twi. Yer the magic experts here. Got any thoughts?”

Like Rainbow, Sunset did nothing to cover her feminine physique. Even so, she folded her arms and began pacing in thought. “I’m not sure. This reaction is unprecedented when it comes to winking. Honestly, winking is more at the lower end of high-tier spells. Size changing is up on the upper end, so… Wait, our Equestrian forms!” she realized. “That must have been it. The machine pulled on the magic left in us by the Elements of Harmony. That explains where the extra power came from, but I have no idea about the rest. Twilight?”

“It all happened so fast. I couldn’t keep up with all the errors,” Twilight bemoaned. “Oh, this was such a bad idea.”

“Twilight, no,” Sunset authoritatively cut in. “It was a good idea. You planned out everything just like a real unicorn would. Honestly, in your position, I’d have probably made the same mistake.”

“Wait, does that mean neither of you knows how to fix this?” Rainbow asked. “And what the heck are you doing over there?”

“I’m trying to straighten out my clothes to avoid wrinkles, darling,” Rarity said from all fours, never looking up as she focused on her task.

“Rars, we don’t have time fer this,” AJ chided. “We need ta—”

“Darling!” Rarity barked, silencing the farmer. “I am two inches tall, naked, my clothes are a mess, and it doesn’t sound like the experts know how to fix those first two things. So, kindly leave me to fix the one thing I can control”—she sweetly requested, only for her voice to turn deep and beastly—“or I will end you!”

AJ flinched back from her friend’s outburst, only to jump when someone touched her shoulder.

“Rarity stress sews,” Rainbow reminded, getting a little too close into her orange friend’s personal space. “She can’t sew, so she’s folding. It’s probably best to let her process things her own way. Ya know, unless you want to lose a finger.” She gestured at her growling white friend with one hand while her other migrated south over her orange friend’s back.

AJ narrowed her eyes on the shorter athlete. “Best mind where yer touchin’, unless ya wanna lose more ‘an a finger.”

Rainbow’s hand stopped in place, but she gave a cheeky grin. “That depends. Where would I lose it?”

“Girls, I can see my computer from here,” Twilight informed. “It’s in standby mode. If I can reach the keyboard, I might be able to figure out what happened to us and reverse it.”

“Alright, good idea,” AJ approved while staring from the chair to the desk and screen. “Jus’ one thing. How, pray tell, are ya gonna climb up what looks like a miniature skyscraper?”

“Uh, I don’t know.”

“Wait, I’ve got an idea,” Sunset spoke up. “Twilight, it looks like your panties are on the floor.”

Rainbow whistled, earning a hip-check from AJ.

“If we bunch them together, and you climb down your skirt, it should be a safe fall. Afterward, I think I see a way we can climb up your desk.”

“I… okay,” Twilight allowed, not having any better ideas. Her skirt was partially hanging over the side, but she had nothing with which to weigh it down. Her only hope was that her weight was sufficiently negligible. So, after sucking in a steadying breath, she went to the edge and looked down to watch her friends. The girl blushed as she saw everyone’s naked bodies surrounding her pink-striped panties. “Uh, this wasn’t how I imagined my first time with someone touching my underwear would be,” she said, hoping to defuse the tension.

“That’s not what we’re doing,” Rarity countered as she worked with the others to fold the garment. “We’re folding a blanket. Yes, that’s right. It’s just an ordinary blanket, free of any unusual odors, and there’s nothing weird about this at all.”

“Is she alright?” AJ asked.

Rainbow shrugged. “I got the folding thing. This, uh, might be an issue.”

“It’s alright,” Sunset informed. “So long as we work together and get the job done, everything will be back to normal in no time.”

Rainbow nodded. “Right. Normal, as in, how it’s normal we’ve all seen each other’s tits, ass, and coochies.”

“Rainbow!” AJ snapped.

“If it makes you feel better, I honestly don’t care,” Sunset chimed in. “Ponies go around naked all the time. It’s impossible to get through the day without glimpsing what’s between somepony’s legs at least a few times. So I really don’t get what the big deal is with humans and nudity.”

“Sunset, darling. Unlike ponies, humans lack fur,” Rarity began. They’d finished folding the garment into the sufficiently thick cushion and moved it into position. “Our early ancestors wore animal hides, so we didn’t freeze in the winter. Over time, what started as purely functional evolved into something fashionable. Caring for your clothes became a demonstration of self-respect and status.”

“Yeah, that part makes sense,” Sunset confirmed. “Alright, Twi. We’re ready.” She then resumed facing Rarity. “But why do you get so weird about people seeing you naked, though?”

“Uh, okay. I-I’m coming down,” Twilight informed as she carefully gripped her skirt and slowly swung her legs over the seat’s side. She held on for dear life, clinging with both her hands and knees and making for slow progress.

“What can I say? Humans are dumb,” Rainbow added as she watched Twilight, ready to move the panty cushion at a moment’s notice. “All it takes is a quick look at some cute piece of ass, and we get all horny. It’s actually kinda fun when you think about it.”

“I agree on that part,” Rarity replied. “It’s most enjoyable to show off a little skin to tease your audience. Not to mention that certain designs send off universal alluring signals to entice. The right set of underwear picked especially to please your lover is a popular trope in adult novels.”

“Says the expert,” teased Rainbow.

“It’s called culture, Rainbow,” Rarity retorted. “You should try it sometime.”

“Sure. I’m about done with my current book, so recommend me some titles, and we can chat at lunch.”

Rarity blinked at Rainbow’s forthright response, causing AJ to snicker.

“Hehe, she got ya.”

“C-can we talk about something else?” Twilight begged as she scaled down her skirt. “This is, uh, m-making it a little h-hard to hold on.”

“What, are your boobs getting in the way?” Rainbow jokingly asked. “Twi, if you fall, and your hard nipples poke someone’s eye out, I swear by all that’s holy that I will never let you live that down.”

“It, uh, i-it’s actually making my hands a little s-sweat—y!” Twilight screamed as she lost her grip and fell backward.

There was a brief panic as everyone lifted their makeshift catcher and tried to line up everything. Luckily, Twilight fell squarely in the middle of her panties, bouncing a short distance before landing with a thud on her bacon-haired friend.

“Ugh. Hey, you okay?” Sunset grunted as she held Twilight in her arms. She felt the purple girl shift and breathe as their bare bodies brushed together. Twilight’s skin was smooth and warm, and her breasts felt oddly pleasant as they pressed into Sunset’s belly. Yet, at the same time, Sunset wondered what purple her friend thought of her orange breasts as her head lay atop them like pillows. Did it suddenly get warm in here?

Twilight’s accelerating pulse slowed as she acclimated to the stable ground and Sunset’s warmth. She was still in a frightened state and clung to the other girl for safety. Sunset just felt so lovely as Twilight nuzzled her. “Mmh, you smell nice,” she said without thinking.

“Uh, thanks?” Sunset replied, now feeling even warmer. Nudity was one thing, but complimenting someone’s smell was something ponies almost never did outside of flirting. And rubbing together like this, well, elicited certain involuntary reactions.

Rainbow whistled. “Second base already? You two move fast.”

“Rainbow!” Rarity chided.

“What? We were all thinking it.”

“It’s true. Ah was,” confirmed AJ as she smirked at the pair.

Eventually, Twilight realized they had an audience and decoupled from Sunset. The two girls stood apart and awkwardly avoided eye contact. “So, uh…”

“Yeah,” Sunset agreed.

So, now that they’d established all the essential details, the awkward young ladies headed for the desk. Luckily, there were a bunch of wires with rough textures for them to climb. Unfortunately, doing so meant that everyone had a clear view of the spread ass of the person in front of them. And not to name any names, but everyone agreed that Rainbow should take the lead. Finally, everyone arrived atop the desk and pretended no one was blushing from what they’d witnessed. After all, aside from Rainbow, none of them were so immature to give in to temptation just to satisfy their baser desires.

That’s when Twilight ran ahead to her computer. “Okay, let’s see here. Um, Sunset, it looks like you were consistently giving less magic than required.”

“Yeah. I thought it’d be safer not to give enough than too much.”

“Well, if I’m reading this right, it looks like the algorithm tried to correct the mistake. And when the rest of you got involved, it detected your innate magic, and things just cascaded out of control.”

Sunset sighed and set her hands on her hips. “Well, this isn’t the worst thing that can happen with a teleportation accident.”

“Please, don’t explain,” Rarity pleaded.

“Okay, I think I’ve got something,” Twilight said as she ran from one end of the keyboard to the other to push buttons. “It looks like all of that extra power is still stored. If I recalibrate the settings like this, we should be able to reverse the process.”

“Should?” AJ questioned.

“Alternatively, we could just sit here, wait for someone to find us, and go to the other expert on blending science and magic to fix things,” Sunset offered.

AJ popped her lips. “Fair point.”

“Okay, that should do it,” Twilight assessed. “Sunset, I’ll need you to reconnect your magic with the machine while everyone else gathers around you. That should put us back to normal.”

“So, just because I’ve got naturally rainbow hair, you think I’m just gonna roll over and hold onto a bunch of naked hot chicks?” Rainbow asked. “Cuz I will.”

“Let’s just get this over with.” Sunset got into position as the girls wrapped their arms around her. It was hard to ignore how the room’s cold temperature had hardened their nipples as they stabbed into her skin. AJ had the biggest set of milkers, which seemed fitting for the farm girl. Rarity’s breasts were similar to Twilight’s, but much softer. Rainbow had slightly more than what might be called a boy’s chest, but they still felt nice against Sunset’s body. The former pony uncomfortably shifted as she reflected on how she’d never devoted so much thought to human breasts. As a pony, she always considered herself more of a plot lover. Then again, looking around, it looked like everyone also had a nice pair of cheeks.

“When you’re ready,” Twilight informed as she hovered over the enter key.

Sunset snapped to attention and reached out for the machine with the thinnest magical strand she could form. “Ready.” At her word, Twilight pressed the key and ran to join in the naked group hug. At first, everything seemed to go well. The machine rebuilt its charge and whirred back to full activity. Everything on the screen was green, and even when everyone started glowing, there was a rightness to it all. Then, a wave of error messages once more blanketed the screen, and Sunset was pretty sure that she saw a winking smiley face in the code. That’s when another flash took them all.

Chapter 3: Fantastic Voyage into Pinkie

*Splish*

*Splash*

*Plop*

“Gah!” Twilight gasped as she came up for air in the freezing cold liquid. Everything was dark, but there was no momentary deafness from before. “Wh-where are we?”

“Pleh. It’s milk!” Rainbow spat. “Is everyone else in milk?”

“Ugh! Wh-why is it s-so c-cold?” Rarity whimpered.

“Oh, no,” Sunset realized in horror as she felt the plastic wall. “We’re in milk…”

“Yeah, I just said that,” Rainbow irately retorted.

“No, I mean, if we’re in milk, that means we must be in someone’s fridge!”

“How in tarnation did that happen!?” AJ demanded.

“I-I’m so sorry,” Twilight wept. “Th-this wasn’t supposed to happen.”

No one said anything as the purple girl cried. It was dark, but not for any fault on their eyes, which quickly adjusted. Once everyone could discern where the others were, they all swam toward one another. It was tricky to constantly kick to stay afloat, but they managed to huddle for warmth.

“Twilight, it’s okay,” Sunset assured.

“No, it’s not!” snapped the purple girl. “This is all my fault. If I never made that stupid machine or that stupid algorithm, none of this would have happened.”

“Twi, do you have any idea how many bones I’ve broken?” Rainbow asked.

“Wh-what?” Twilight stammered.

“Between hairline fractures and full breaks, I’ve damaged my bones almost a hundred times in my short life,” Rainbow informed. “And that’s not even counting all the torn muscles. And it all happened during big matches, or training, or really anything sports-related. Now I could—”

“Rainbow,” Twilight sorrowfully cut in. “I get what you’re trying to say, but this is different. You did what you love, even if it hurt you. But I was playing with powers beyond my understanding, and all of you are paying the price for it. Th-there’s no excuse.”

“Ah agree,” AJ spoke up. “Ain’t nothin’s gonna get done by throwin’ out excuses. Instead, focus on solutions. We’ve been through worse scrapes, right?”

“Apple Jack is right,” Rarity agreed. “We won’t get anywhere by feeling sorry for ourselves. If we put our heads together, I’m sure we can find a solution.”

“Right, ‘n’ when we’re all back to normal, we can kick Twilight’s ass ‘til she learns her lesson,” AJ declared.

“Well, that much goes without saying, darling,” confirmed Rarity. “Also, this might just be hypothermia talking, but is anyone else not feeling so cold?”

Twilight felt immeasurable relief at her friends’ words. Even their vow to kick her ass was reassuring, because it implied that they’d forgive her afterward, and she wouldn’t go back to being alone. First, however, Rarity made a good point. “Hey, you’re right. It’s cold, but… but our bodies aren’t reacting like they should under these circumstances.”

“Is that good or bad?” AJ asked.

“In this case, good,” Sunset answered. “It’s still easy to move, and you guys are still putting off the same amount of heat. Got any thoughts, Twilight?”

“Yes, actually. I didn’t mention it before, but my readings indicated that our bodies changed in more than just size. To make a long story short, we’re far more durable than before, which I suppose extends to extreme temperature tolerance. Also, I think we can hold our breaths for longer, which is helpful, given present circumstances.”

“Alright,” Sunset said, trying to keep optimistic. “It sounds like we’re not in immediate danger, but that’s no excuse for slacking. If we want to teach Twilight a lesson, we’ll need to work together to get out of here. Any thoughts?”

“Uh, can we drink all the milk and then push the empty carton over?”

“Sorry, but we’d just pee it back out before then, and I’m not swimming in pee,” Sunset countered.

“Definitely not,” agreed Rarity. “I hate simply waiting, but someone has to open the fridge door at some point. We can get their attention and hope for the best.”

“That depends on whose fridge we’re in,” Twilight informed. “If it’s mine, then my brother should be home in less than an hour.” Her face then heated up as she imagined her secret first crush seeing her in this state.

“Wait, why wouldn’t it be yer fridge?” AJ asked.

“Because we teleported randomly,” Twilight answered. “There was no reason to end up in this spot instead of another. It was all chance. Our best hope is that the machine didn’t have enough power to send us too far away, and whoever finds us will be a friend from school.”

“Uh, Ah wouldn’t exactly call Trixie a friend,” AJ stated. “She seems like the sort who’d take pictures fer blackmail.”

“That shouldn’t be a problem, darling,” Rarity assured. “Whoever it is, we can just play along, appeal to their ego, and wait for a chance to either trick them or escape. Then, once we’re back to normal, if they did anything untoward, we can just ensure that it was the last thing they’ll ever do.” Her cheerful tone barely concealed the demon lying beneath the surface.

“Wait, I hear something,” hushed Rainbow as everyone went silent. There was definitely a muffled voice from outside. Suddenly the fridge door opened, and light streamed in.

“—are you guys?” Pinkie asked in annoyance, phone to her ear. “I know I’m late, that that’s no excuse to ghost me.”

“Pinkie! Oh, thank goodness!” Twilight exclaimed as she and the others started shouting and waving their hands to get her attention. But, unfortunately, the milk carton’s label must have blocked the pink girl’s view.

Finally, Pinkie rolled her eyes and pocketed her phone. “Twilight, are you there?” she called into the empty house. “I ran all the way here, so I’m gonna grab a drink, okay.”

“Sweet Celestia, no,” Sunset whispered in muted horror.

“What is it?” Twilight asked.

“P-Pinkie drinks s-straight from the c-carton.”

“Oh, my science,” Twilight gasped.

Pinkie was truly tired from all that running. She tried to wrap up her work with the Cakes as quickly as possible, but the journey here left her knees achey and her dogs barking. After scanning the fridge’s contents, she zeroed in on what looked most appealing. “Ah, milk. Nothing like some good ol’ vitamin D, aye, girls?” she asked down at her boobs. Almost impossibly, a lifetime of eating sweets had somehow not rendered her morbidly obese. Pinkie liked to say that it was thanks to her boobs absorbing all that extra fat. For those who knew Pinkie and even those who didn’t know her, one look at those triple Ds was enough to convince them of the irrefutable truth. Since she was alone, she decided to have a little fun and bounce on her feet to make her fun bags jiggle.

“Whoa, momma,” Rainbow said, spellbound by the swaying masses.

“Snap out of it!” AJ snapped as she gave the blue girl a whack to the head.

Everyone else continued to shout and wave their arms. However, Pinkie’s playtime caused the milk to slosh and repeatedly dunk the girls. That’s when they felt the world around them shift as the carton rose, only to tilt.

Pinkie continued staring at her fun bags as she removed the carton’s lid. The pink masses were just so fun to play with. Even the faint hurt from bouncing was enjoyable. It filled her with an odd sense of feminine pride to have such ample milk shakers. As bad as it might sound, she hoped that whatever Twilight wanted would wrap up soon. She loved hanging with her friends, but staring at her girls reminded her of another appointment she’d put off for too long. Pinkie was so lost in her thoughts that she never looked up, even as she pressed the carton’s opening to her lips.

“Swim!” Sunset screamed. “Swim away!”

However, the others were already doing that. The dark pink cavern at the carton’s far end was motivation enough for everyone to beat their limbs faster than ever before. Unfortunately, with gravity aiding the current as the carton tilted ever further, the odds were not in their favor.

Rarity went first. She and Twilight were the least athletic, but she happened to be closer to the carton’s opening. She swam as hard as her dainty limbs could manage, but the pink cavern was fast approaching. Worse, each time the girl tried to open her mouth to call out to her friend, she’d gag on a mouthful of milk. Finally, she tumbled back into the undulating pink cavern. The lights dimmed as she fell further back. Warm muscle glided over her body as she flew past, tickling her bottom, only for her to hit the back with a wet splash. A second later, and pink muscle enveloped up to her knees and suddenly sucked her down.

Pinkie paused in drinking to sputter a little. She’d just swallowed something that definitely wasn’t liquid. So she checked the date on the label that obscured most of the carton’s contents. “Huh, you’re not expired, so why do you have chunks?” When the milk didn’t answer, she continued. “Eh, oh well. I’ll just finish this one off and leave money for a replacement.” And she continued drinking.

AJ went next. She’d always been strong, but having to swim amidst Pinkie’s constant sloshing was the absolute worst time for a cramp. The farmer tried to fight it, but the pain slowed her down just enough. She then looked at the carton’s opening. It wasn’t too big. If she timed it right, she could grab the edges and hold on. Pinkie might finally notice, and she’d save the others from meeting Rarity’s fate. However, the orange girl was so busy focusing on the opening that she failed to notice something blue coming right for her. It was Rainbow’s butt. The young athlete overexerted herself, also suffering a cramp. The disoriented girls collided and tumbled down into the dark depths.

Pinkie gave another hearty swallow as an extra-large chunk went down her throat. “Man, what is up with this stuff?” On a whim, she decided to peak through the opening to investigate. However, just then, her phone buzzed. “Oh, who is it?” She used one hand to check. “Fluttershy? Why are you texting me that you can’t come?” It was now critically important for Pinkie to text and see what was up. So, she stared at her phone as she chugged the last of the milk.

Twilight and Sunset held each other tightly as the sloshing white liquid pulled them ever downward. They’d just watched all their friends fall down and disappear into that dark abyss, and their strength had given out. They closed their eyes and pressed their faces together to ensure they wouldn’t see. They fell past the opening, but briefly paused within Pinkie’s maw. Their pink friend’s mouth was filled to the brim with liquid, which she sloshed around. Twilight and Sunset continued holding one another as they went this way and that, occasionally brushing against a tooth, cheek, or Pinkie’s tongue. It was so turbulent that it never occurred to either shrunken girl to reach out and try to grab something to get Pinkie’s attention. They just went with the flow until it took them to the throat.

Once there, all the liquid drained, so at least the girls could breathe the hot and stale air. Unfortunately, the shrunken pair was now packed so tightly that they couldn’t move. Their disorientation suggested that they were facing down as the esophagus constricted around them, pulling them ever deeper.

“Agh, Twi!” Sunset groaned as the warm muscle hugged her back, butt, arms, and legs. She tried to struggle, to move her limbs in some hypothetical position that could save them. However, she only succeeded in grinding against Twilight. The purple girl’s flesh was soft, but different from the contracting tube of muscle. Twilight’s breasts mashed against Sunset’s, rubbing their nipples together in a way that made both girls moan.

“Nnngh! N-not there!” Twilight gasped. She tried to push away, but couldn’t get a grip on the slippery surface. Instead, everything kept slipping and sliding. Somehow, she even brushed her (mostly) untouched flower against Sunset’s as their legs intertwined. Then, although she hated herself for it, Twilight repeated the motion.

Maybe it was because they were inside someone while in each other’s arms, but Sunset was starting to get hot. Twilight’s little touches sparked a reaction in the former pony’s body that she hadn’t felt since her last equine heat. Each time their slits touched sent a burst of pleasure shooting through Sunset’s system. She kept telling herself that these were merely accidents, but that became increasingly hard to believe after the seventh time. And their breasts’ grinding together was simply unavoidable. So instead, Sunset used her limited movement to reach further down Twilight’s back until she touched the girl’s butt. It wasn’t that big, but it was pleasantly soft and squishy in her hands. Sunset gritted her teeth and moaned as she squeezed, making the girl groan in lustful delight.

As Twilight’s mouth opened in a gasp, she fought the constricting muscle wall to turn her head to face Sunset. Without meaning to, their noses bumped, and then their lips locked. Twilight had liked Sunset for a while, but it was never more intimate than slight touches or playful looks. She’d never kissed anyone before, and she knew she must be bad at it. However, all things considered, she didn’t care. Sunset’s lips felt so nice against hers, and she wanted that feeling to last.

That’s when the pair’s heads hit an orifice that briefly halted their descent, only to open and squeeze them through.

“Dammit, them too?” Rainbow growled in the dark, gurgling cavern.

Twilight and Sunset finally broke from their intimate moment to return to reality, such as it was. Everything was still dark, but they could vaguely make out shapes in the limited space. Bodies kept bumping against them as the orifice squeezed down their waists, hips, knees, and finally pushed their ankles out. Warm milk splashed around the stomach floor, so the girls had to quickly right themselves to avoid drowning.

“Well, welcome to the party,” AJ declared in irate resignation. “Pull up a seat ‘n’ Ah’ll grab ya a cider.”

“Wa-ha-ha!” cried Rarity. “My hair. It’s rui-i-ined!”

“Your hair?” Rainbow demanded, aghast. “Is that what you’re worried about? Don’t you realize—” However, before she could finish, a hand stronger than AJ’s suddenly gripped her shoulder and pulled her nose-to-nose with her fashionista friend.

“Nothing is more important than my hair, because nothing else is happening!” Rarity said while clenching her jaw. “We weren’t just eaten, and we’re not waiting to be digested because our friend has a porn star’s throat!”

“Porn star?” Sunset asked.

“It means she can swallow like crazy,” AJ clarified.

“Even I got that one,” Twilight added.

Sunset deadpanned, “Well, now I just feel silly.”

Unfortunately, while this did lighten the tension just a tad, Rarity had an adverse reaction. She resumed crying, but much louder than before. “Wa-ha-ha-ha! We’re all doo-oo-oomed!”

“Wait, we might not be,” Twilight interjected. She pushed into what she thought was the stomach’s center, but slipped and fell into someone’s chest.

“Lam sakes, sugar cube. At least buy a girl dinner, first.”

“Oh, s-sorry,” Twilight stammered as she fought to push herself up. However, between all the milk and bodily secretions, everything was too slippery, and she repeatedly slapped her palms onto AJ’s breasts while trying to find purchase.

Eventually, the moaning farmer had enough and pushed the girl away. “Dammit, Twi. Don’t ya know it’s against the girl code to smack another chick’s tits?”

“I… uh…” Twilight stammered. Among other things, she was caught off guard by something she was, apparently, supposed to know, which was irksome under normal circumstances, but bordered on debilitating today. “Look, the point is that we might not be doomed.”

“Oh, I can’t wait to hear this,” Rainbow sarcastically remarked.

“Well, remember what I said about durability? I think that might apply here.”

“What do you mean, Twi?” AJ asked.

“Don’t go toying with my heart, darling,” warned Rarity. “Things are bad enough without false hope.”

“It’s not false. It’s completely… plausible,” Twilight hesitantly added. “I didn’t look at those figures too closely, but the general idea was that our bodies are significantly more durable in this shrunken state. I might not have needed that panty cushion to survive falling from my chair. And, while I’m not one hundred percent, I’m reasonably sure that our bodies should be strong against digestion.”

“Well”—Rarity sniffled—“I suppose that’s better than nothing. I’d rather be stuck here forever than be digested.”

“Uh, Rars,” Rainbow carefully began, still remembering the dainty girl’s grip. “You know we’re in a stomach, right? Food doesn’t—” Rainbow could have sworn she saw two orbs of fiery red death burning in the dark. “Ya know what, stuck in a stomach forever works for me.”

“Wait!” Sunset cut in. “No, this could work. If we give Pinkie a stomach ache, that might get her attention.”

“‘N’ then what?” AJ asked. “She’ll jus’ send us ta the toilet sooner ‘r later,” she said while ignoring the eyes in the dark promising her doom. “Or do ya think she’s gonna somehow figure out that there’s a bunch o’ tiny people in her belly?”

“Well, if anyone would reach such an absurd conclusion, it’d be Pinkie,” Rarity reasoned.

“Point made, point taken…” AJ acquiesced. The tall farmer then did her best to stand within the confined space and started slamming her fists against the stomach walls. “Hey, Pinkie! Let us out!”

***

Meanwhile, Pinkie gave a soft, dainty belch as she wiped her upper lip of her milk mustache. “Ah, yummy.” She then looked down at her slightly bloated belly. Although, it presently looked like a muffin top as it spilled over her skirt. “Whoa, I guess there was more than I thought, hehe.” She giggled as she slapped her stomach, watching the seemingly gelatinous mass ripple and shimmer under the impact. “Well, it’s off to the recycling you go,” she said as she tossed the empty carton in the appropriate bin. “I still wonder why there were chunks in good milk that still tasted pretty good. Well, I guess it doesn’t matter. Now, off to find my friends.”

Pinkie searched through the house, high and low, but found no one. “Weird. It’s not like Twilight to leave the house with the door unlocked. And why didn’t anyone tell me they’d left?” Once more, Pinkie checked her phone, but there were no new updates. Shrugging, the girl poked her head in the basement lab, but still found nothing. Had she thought to check the attic, she might have seen her friends’ clothes strewn about the dusty wood. Instead, she chose to make one last stop in Twilight’s room to do a totally innocent tidiness checkup that all normal friends do for each other. That’s what happened, and it definitely wasn’t an excuse to go snooping through Twilight’s things to see what kind of porn the recluse enjoyed.

“Ugh, my tummy,” Pinkie groaned as she rested her hand on her aching stomach. “Maybe there was something wrong with that milk after all.” Resigned that she had no idea where to find her friends, the pink girl sent out a group text to let them know she was heading home to sleep off potentially spoiled milk. However, as she skipped merrily down the pavement to her home, Pinkie started to feel a little odd. Her tummy still ached, but the ache felt different than typical pain.

Entering her home, Pinkie set her hand on her belly and felt some pretty unusual gurgles. She wondered if she should take some antacid to settle things. However, as she thought on the matter, she realized that she had a more pressing need. As the pink girl patted her belly to jostle its contents, she made a b-line for her room, checking along the way to make sure she wouldn’t be disturbed. Maud was in her room, likely preoccupied with some project, and wouldn’t come out for a while. The other rooms were empty, so Pinkie felt content to put a sock on her doorknob before locking it behind her.

Feeling giddy at her plan, Pinkie leaped high in the air and landed on her bed with a bounce, leaving her skirt and shoes behind. She propped up a pillow to lean on, spread her bare legs, and stared at her panties, noting the faint dark stain. “Hehe, kitty’s hungry. Well, don’t worry, baby. Momma’s gonna take care of you,” she said as she reached down and rubbed her slit through the stain. “Nnngh, yeah, that’s the stuff,” Pinkie contentedly sighed as she eyed her nightstand. Her free hand reached to open a drawer, revealing an array of sex toys with color schemes similar to her friends. “Hmm, who wants to play?”

***

“Wait, I hear something,” Rarity called. Her friends silenced their prior shouting as they listened, hopeful that Pinkie had noticed them. The milk had drained to less than waist-high.

“Mmm, Twilight, you sure look eager.” Pinkie’s voice was loud, muffled, yet still sent tremors through the shrunken girls’ bodies. However, while they still detected their friend’s playful undertone, Rarity noticed something that made her guts clench. Her worst fears were confirmed when she heard a buzzing.

“Oh, no…”

“What is it, Rars?” AJ asked. She tried approaching her friend in the dark, but slipped on the floor and accidentally pulled Rarity down into the milky pool. No stranger to mud wrestling, AJ acted quickly to pull herself up, followed by her friend. As she did, she unthinkingly pulled Rarity’s chest to hers. The fashionista had soft, dainty breasts compared to the farmer’s udders. However, the white orbs had a perfect shape that sent tingles through AJ as they pressed together. The orange girl ignored the rising heat in her core and cheeks and continued holding Rarity until she was sure her friend could stand on her own.

Rarity had fantasized about a handsome and strong prince sweeping her off her feet since she was young. However, she never imagined her prince would have such an impressive rack that could dwarf hers. AJ’s arms were powerful, and the way they wrapped around her dainty body made the shorter girl feel safe. Nevertheless, her heart still raced from the general danger that surrounded them, so it was hard not to press her face into her friend’s warm and ample bosom for solace. However, the peace was short-lived when a deep cry echoed through the stomach.

“Gah, what was that?” Rainbow demanded.

“I think it was Pinkie,” Twilight replied. “It… almost sounds like she’s—”

“No! I mean, what was that?” Rainbow gestured in the dark, but realized no one could see. “Someone’s face fell on my ass!”

Sunset cleared her throat, but tried not to draw attention to herself. Rainbow’s cheeks were small and a lot bonier than she’d expected. If she had to face-plant on someone’s rear, Rainbow was pretty far down the list. Although, that was not a conversation she wanted to start at the moment.

The buzzing grew louder and louder. Eventually, whatever it was made contact with Pinkie, sending a steady thrum of ticklish tremors through the stomach’s floor.

“She’s masturbating!” Rarity finally declared.

***

“Oh, Twi!” Pinkie gasped as she slid the vibrator over her panties. She arched her back and thrust her hips against the toy’s trembling tip. “That’s it, you little nerd. Show momma Pinkie how you do it.” She pulled her panties aside to directly stimulate her clit. Then the pink girl bit her bottom lip as she applied increasing amounts of pressure, slowly pushing more of the toy into her hungry kitty. “Yeah, that’s it! Give momma what she wants!”

Pinkie’s train of thought left the station as she imagined Twilight kneeling between her legs and eating her out. The buzzing was her nerdy friend’s hum as her tongue probed ever deeper. Pinkie giggled. “Ya know, Robo-Twi, I’m pretty sure the real Twi doesn’t have a tongue with as many settings as you, but I bet she wishes she does.” The pink girl snickered some more as the toy fully submerged into her snatch. She then turned the knob to its lowest setting while holding onto the base. She slightly stirred the toy within her depths, teasing herself while also trying to relax.

“Hey, Twi, let’s play a game,” Pinkie said to her toy as she pulled up her shirt, revealing her sky-blue bra. “I had some weirdly chunky milk earlier. It tasted fine, but there was something about those chunks…” She thoughtfully trailed off. “Wouldn’t it be funny if those chunks were actually tiny people? Like, what if my friends shrank and somehow ended up in the milk?”

***

Even in the dark, Rarity could almost feel her friends’ withering stares as their eyes fell upon her. Of course, it wasn’t her fault that she was right in the worst possible way.

Every slight squeak and moan from the pink girl sounded as though it was amplified by a loudspeaker, providing an ongoing ambiance atop the stomach’s gurgles. And maybe it was another side effect of the experiment’s fiasco, or all their slipping and sliding into one another’s bodies was more impactful than they initially thought, but the shrunken girls had an increasingly difficult time ignoring the rising heat. Pinkie’s moans were just so erotic, and the vibrator’s buzzing was like a trigger for the girls’ horniness. Not to mention that they could hardly take two steps without falling over a nude and, admittedly, sexy body.

***

“Hehe, yeah, it’s silly, but it’s also kinda hot, right?” Pinkie questioned her vibrator as she lightly pushed it in and out of her needy sex. She rested her free hand atop her stomach and lightly pressed down, causing her tummy to tingle more than before. “Ooh, feels like the people in my belly are kicking up a storm,” Pinkie joked as she closed her eyes and rested against her pillow. She saw her friends in her imagination. “I’ll bet Twilight’s having the most fun. That girl always struck me as a closet kinkster. Tehehe, and I bet she’s loving this excuse to throw her naked self on naked Sunset. I always thought those two would make a cute couple.”

***

As Pinkie spoke, her body writhed, shaking her stomach’s contents within their milky prison. Twilight fell onto Rarity, and their eyes met in the dark. Both girls felt the other’s warmth and drew closer. They embraced, pressing their breasts together. Twilight’s chest was slightly smaller than Rarity’s, but just as sensitive. Then someone knocked them against the stomach’s wall, and both girls found their hands on one another’s butts. Their fingers started moving of their own accord, studying the gentle curve of each cheek as they buried their faces in the other’s shoulder. Twilight wished she could do this with Sunset, but she wouldn’t complain about someone as sweet-smelling as Rarity.

***

“I bet Rainbow’s probably taking this the hardest. She always seemed more like a top, so she’s probably not too keen on my tummy dominating her like this.” Pinkie eyed her stomach as her fingers pushed the spongy flesh around. She then gave it a light smack and watched the flesh ripple, synchronizing the act with suddenly withdrawing most of the toy from her slit. “Hehe, don’t worry, Rainbow. My tummy’s super friendly. It loves the way you wiggle in there. Oh, you other girls should help make her comfy. I know if I were inside a tummy, I’d wanna cuddle up with Fluttershy. Man, that chick has a rack!”

***

AJ leaned against the stomach’s curved wall. She was the tallest, so she had the least trouble keeping her head high as the other girls lay atop her. Rainbow’s scrawny ass somehow wound up atop the farmer’s face amidst all the jostling. While it still wasn’t clear if the experiment or something else was responsible, AJ was too horny to care. Instead, she opened her mouth wide and latched onto her blue friend’s pussy. It still had a milky flavor, but beneath was an erotic sweetness that drove the apple picker wild.

Rainbow’s ass seemed to fit nice and snug over the orange girl’s face, almost like they were made for each other. The farmer’s tongue was exceptionally dexterous as it probed her needy sex. The athlete couldn’t stop grinding her rear, coaxing her favorite rival into doing even more. She wanted to voice those desires, but her mouth was presently occupied with another girl’s lips.

Sunset had bumped into Rainbow purely by accident. Then, before she knew it, they’d started making out. Given the circumstances, it just seemed like the logical thing to do. Rainbow wasn’t much of a kisser, but the bacon-haired girl hardly cared as their lips smacked. Instead, her hands reached out until she found her blue friend’s nearly flat chest and started squeezing with reckless abandon. She just needed to do something with her hands, and Rainbow’s hard nipples digging into her palms were erotically rewarding. The athlete soon reciprocated and grabbed Sunset’s larger mammaries. It seemed the aspiring speedster was much better with her hands as her fingers twisted and kneaded Sunset’s flesh to make the foreign girl moan. At the same time, Sunset’s knee found its way between a pair of thick and powerful thighs. She figured they were AJ’s, zeroed in on her slit, and began applying pressure.

***

“Fuck, that’s perfect!” Pinkie screamed as she repeatedly slammed the vibrator into her sex while mashing her other hand to her stomach. “Oh, you girls feel so good in there! Ngh, I can just imagine you scissoring, and cuddling, and—Oh, tell me there’s some boob biting and ass play. You can’t do a proper yuri orgy without some boob and butt action!”

Meanwhile, as Maud tried to focus on her project, she couldn’t help but hear her sister’s cries through her headphones. “Hmm, very true,” she deadpanned.

***

At the same time, Pinkie’s jerky movements and stomach smacks made it almost impossible for those in her belly to keep steady. One minute, Rarity was passionately making out with Rainbow. Their hands roamed over their slender bodies, desperate to feel every square inch of feminine flesh. The next, the world turned upside down, and Rarity was sixty-nining with AJ. The hormones were too powerful for either to think clearly by that time, so they simply went with the flow and buried their faces in one another’s pussies. Twilight and Sunset finally found each other once more and embraced like their lives depended on it. Rainbow amplified the experience as she buried her face where their pussies met and slathered their slits with her hungry tongue.

Then another jostle came, and everyone changed places once more. AJ spooned Rarity and fiercely fingered her more petite friend’s slit. At the same time, the farmer felt her toes wiggle against the moist muscle that wasn’t the stomach. Twilight and Rainbow held onto their orange friend’s ankles to hold her wiggling toes against their slits. Left on her own, Sunset fumbled through the dark to the nearest sound of lustful moaning until her hand found purchase. Without knowing who she’d found, she pulled the girl into a mighty kiss, only to recognize the flavor of Rainbow’s lips. This phased neither girl as they continued making out, only for another shakeup to change their positions.

***

“Gaaah!” Pinkie groaned as her back arched high in the air. Her thighs squeezed so tightly on her vibrator that it shot from her pussy with a wet pop and flew off the bed. Then, as she lay there panting, her feminine shame on full display, there came a knock at the door. “C-come in,” Pinkie invited without thinking.

Maud poked her head through the open door and beheld precisely what she expected to see. Her eyes then fell to the vibrator on the floor as it glistened from recent use. “Four feet from the bed,” she deadpanned. “Not your best, but that must have been a good orgasm.”

Pinkie tiredly giggled, loving her sister’s sense of humor. “Hehe, yeah.” She took a second to breathe. “I… I imagined my friends were tiny and having an orgy in my tummy.” She panted again. “Funny, huh?”

“Not really,” Maud flatly replied and covertly took a few pics with her phone. “Given all the magic shenanigans you girls have gone through, a shrinking adventure seems almost inevitable.”

Pinkie blinked and finally pulled her head up, narrowly missing Maud’s phone disappear. “W-was there something you n-needed?”

“Just some spank bank material for Boulder,” Maud said while holding her pet rock. “He likes to watch.” Then, without further explanation, Maud retreated and closed the door behind her.

“Didn’t I lock that?” Pinkie wondered aloud as she came down from her orgasmic high. Her legs were a little wobbly from the after-effects, but the tingle maintained a smile on her face. She patted her stomach and said, “Maud’s such a jokester. There’s no way that kind of cheap porn scenario could happen in real life. I mean, how would my friends even end up in… my…” Pinkie belched and tasted milk. Her eyes narrowed, and her heart skipped a beat as her mind entertained the absurd possibility. However, Pinkie’s definition of absurd was starkly different to most people, so she sprang out of bed and unsteadily ran to her private bathroom. She pulled out her stethoscope (because, of course, she had one) and put the ear thingies in her ears before pressing the cold metal part to her stomach.

“Uh, okay, this is awkward,” Pinkie began with an uncomfortable laugh. “Tummy, I know we don’t talk much, but I was wonder if you—”

“Agh! Harder, Rainbow!”

“No, softer. You almost bit my nipple off.”

“Darling, if you’re going to open your mouth, just put it to use and eat my ass.”

Pinkie rapidly blinked as her mind processed this revelation. For anyone fluent in Morse code, they’d have read, ‘Oh, shit! Oh, shit! Oh, shit!’ for approximately three straight minutes. Luckily, that was about how long it took the girls in her stomach to finish up. Afterward, a very awkward and convoluted explanation followed, made longer by Pinkie’s almost nonstop apologetic interruptions. Then, at long last, everyone was on the same page.

“And you’re sure no one’s hurt?” Pinkie demanded, fighting not to cry.

“Ugh, for the umpteenth time, we’re fine,” Rainbow called as she leaned against AJ’s shoulder. The milk had fully drained, but everyone was spent. So, it only seemed natural to cuddle with the nearest body.

“Pinkie, given how long it’s been, I think we’re safe,” Twilight assured. It felt a little weird saying this with her head in Sunset’s lap. However, the thought of moving from such a pleasant spot bordered on offensive, so she kept her cheek pressed to the bacon-haired girl’s lovely thigh. “Though, that doesn’t mean we’ll stay safe forever. We really ought to work on escaping.”

“Indeed. While this has been an… engaging experience, I’d like to be outside as soon as possible,” Rarity gracefully informed as she leaned against Sunset.

“Whoa, you sound a lot more mellow than I expected,” Pinkie observed as she stared at her belly button. “Aren’t you, like, worried about sticky stuff in your hair or something?”

“Oh, darling, that ship has sailed, hit the iceberg, and sunk to the ocean floor,” Rarity tittered. “I’ve just had my mouth against every one of my friend’s orifices, my legs won’t stop tingling from all my orgasms, and I’ve finally gotten used to the smell. While I call dibs on the first shower, I’m at peace with my predicament.”

Pinkie blinked as a shiver ran up her spine. “Uh, guys, did Rarity just give me a death glare? It feels like someone’s giving me a death glare from in there.”

“You need to focus on getting us out,” Sunset cut in, changing the subject. “Is there anything you can take to induce vomiting or something?”

Pinkie shook her head. “Sorry, girls. Even if we did, I’ve got, like, zero gag reflex.” She paused as she heard Rainbow giggle, glad that things weren’t so dire, and she could still make her friends laugh. “I could help you get out the other way.”

“… Define help?” AJ warily asked.

“Well, we don’t have any laxatives. Our family is pretty healthy. But if you guys tried going down on your own, I could work my butt to make it wide enough for you to get out.”

Sunset frowned as she stared at the dark, undulating wall of muscle. “Okay, I know I’m gonna regret asking this, but I’ll do it anyway. Work your butt, how?”

“I’ll masturbate, silly,” Pinkie said as though it were the most obvious thing in the world.

“Apple Jack.”

“Yeah, Rarity?”

“When we get out of here, I want you to find a metal pipe and bash me over the head—”

“Deal.”

“—so I can forget everything that happened t—Wait, why did you agree before I finished explaining?”

“Girls, that’s enough,” Sunset called. “I don’t like this any more than you do, but this is how it has to be done. Let’s just, ugh, get it over with. Now, help me find the valve to the small intestine.”

As commanded, the girls got on their hands and knees to explore the dark and slippery cavern. More than once, someone lost their balance and lewdly collided with someone else while making wet slapping noises. Somehow, Rainbow always wound up face-first in someone’s ass. However, they eventually found a dip in the wall. AJ volunteered to stick her arms through the passage and pry it open for the others. It was tight, so this saved them a lot of exertion.

Sunset went first and army-crawled through the tunnel. The way the walls gripped her body was reminiscent of the esophagus. However, now that she wasn’t afraid of digestion, she allowed herself to enjoy it a little. The villi encasing the inner passage tickled as she pushed through. It was like having hundreds of giant wet tongues simultaneously licking every inch of her body. Only a few seconds passed before she let out a shameful moan. However, after everything that just happened, she was largely numb to shame. The others experienced similar ordeals.

“Whoa, this is weird,” Pinkie panted as her fingers applied pressure to her abdomen. “I-I feel you guys,” she marveled as she tracked her friends’ movements through her body. “I don’t normally feel what I eat, but I feel you guys. Is that weird?” she asked, still with the stethoscope to her tummy.

“Pinkie, I got a bunch of tiny rubbery things licking my pussy and tickling my tits, ass, and everything else,” Rainbow informed. “Weird and normal don’t really apply.”

The pink girl blushed. “Oh, tell me more.”

“Please don’t get turned on by this,” AJ whined.

“No, wait, she has to,” Twilight argued. “It’ll be easier for her to masturbate us out if she’s horny.”

Wet shlicks, shlorps, and the deep rumbles within Pinkie’s body were loud in everyone’s ears. However, they still heard everyone’s grumbling agreement. They were still high enough off their recent orgasms to think that made sense. Besides, this new passage was making them horny anyway, so they were less inclined to argue.

“I’m imagining every cute boy and girl at school is licking me,” Rarity announced with a craving groan. “Oh, there are just so many. I almost want to stop and give someone time to give my body the attention it deserves.”

“Uh, same,” Twilight uncertainly agreed as she stared at her friend’s feet. “I wish they made toys like this. Oh, just imagine a chair covered in these things. You could sit down and feel them wiggle all up and in you. Nnngh!” she moaned, biting her bottom lip as she tried pushing up her butt.

“Oh, or like a back massager, but bra-shaped for your boobs,” chirped Rainbow as she tried pressing her chest against the writhing floor. “Uuugh, fuck, that’s good. Agh, I’m getting close.”

“If ya do, then Ah’ll probably walk right into it,” AJ said from the rear. “If ya’ll cum, I’m gonna get a face full ‘f every last drop, ‘n’ it’s makin’ me hot. Ah just fucked all ‘f ya, ‘n’ now it’s like Ah’m gettin’ dessert after a big meal.”

“Man, if I could open my legs more, I’d give you a big meal, alright,” Rainbow teased.

Then the world started shaking around the shrunken girls.

“Oh, th-that’s it,” Pinkie panted as her lubricated middle finger pushed into her anus and began stirring her rectum. “Y-you girls are making me so horny. Tell me mooore!”

“Twilight, as soon as we’re out of here, you need to invent these toy ideas,” Sunset instructed, face flushed and mind dizzy as the stale, smelly air filled her mouth, nose, and lungs. “You could make millions selling this stuff. O-oh, shit!” she gasped, pausing as an orgasm racked her body. Her stop only made things worse as the villi had time to do more than aimlessly sway. It was like they were genuinely licking her body. The short nubs rubbed circles around her nipples, pried into her ass cheeks, and teased her aching sex. They even lavished her hips in affectionate licks, which were still sensitive from her invisible cutie marks. However, her pause backed up the convoy, causing many faces to collide with feet.

“Agh! S-stop it, R-Rainbow,” Rarity whimpered as a real tongue attacked her soles. She squeaked and kicked in the confined space, but her blue friend held her ankles in a strong grip.

“Mmm. Can’t. Too tasty,” Rainbow said between licks.

“Oh-oh-oh, what’s she doing?” Pinkie demanded.

“She’s, agh, l-licking between my toooes,” Rarity whined. “Ngh. Ah, I-I think I just learned something about myself.”

“We all have, sugar cube,” AJ barked as she tried Rainbow’s feet as well. She rubbed the slick soles against her face and even tried one of Rainbow’s toes in her mouth. However, there was no noticeable impact on her horniness. It was a small relief that she didn’t discover a foot fetish on top of everything else. Instead, she impatiently pushed her friend’s blue feet, trying to restart the convoy. Almost everyone hit the girl in front’s feet.

“Eep!” Twilight squeaked as a head shot between her legs and a face impacted her ass and pussy. “R-Rarity!?”

“Oh, sweet fuck, what did Rarity just do?” Pinkie asked. One finger had become three as she pumped her hand while she awkwardly stood with one leg on the tub’s edge and her ass hovering over a water-filled bucket she’d set atop the toilet. Her other arm supported her with the elbow on the bathroom counter for balance while maintaining the stethoscope. The pink girl’s eyes were closed as she listened to every word and grunt from her intestines, creating a high definition image in her active imagination. All of her friends’ faces were twisted in lust as they fought, but ultimately surrendered to pleasure. It was the kind of thing she’d always dreamed of, where her friends finally realized they could have so much more fun together. However, feeling their shrunken move inside was better than she’d dared hope.

“Sh-she’s eating my ass!” Twilight cried. “Her hands are wrapped around my butt, and she’s pushing her face in to eat me out. Agh, s-so gooood!”

“Fuck, that’s hot,” Pinkie panted, still pumping away. “That’s it, Rars. Eat that booty. Eat it like I know Rainbow wants to.”

“Ah, so good,” Twilight said again as Sunsent’s feet bumped her face. Then, incensed and horny, the girl tapped into new strength, pulled her lubricated body over Sunset’s legs, and crawled atop her body, dragging the others behind her. “I’m on Sunset’s back,” she announced. “I miss the villi on my front, but this is also good,” she lustfully purred as she pressed against her bacon-haired friend’s back and reached around to her front. “Her boobs feel as great as ever.”

“Nnngh! Oh, if I had magic, the things I’d do to you,” Sunset growled. The constrictive passage offered little leverage to counterattack. All she could manage was to turn her head to press her lips to Twilight. Then, embracing the moment, she narrated, “I kissed a nerd, and I liked it.”

“Butter toasted fuck! This is amazing!” Pinkie gasped as she furiously masturbated her ass, constantly slowing down before getting too far along. She was fingering her butt for the greater good, after all. So it made sense that she should hold off her climax until the right moment.

However, no one realized that Sunset’s lack of willed propulsion hadn’t stopped her, but merely slowed her advance. The intestines were still part of the digestive tract, which meant they were designed to push food along a predetermined path to its final destination. As a result, the shrunken girls only barely noticed how the small intestine’s twisting passage bent their bodies. Likewise, Pinkie was only vaguely aware as the stethoscope followed their movements on autopilot. Everyone was just too caught up in the moment. Luckily for the shrunken girls, this meant they got through the large intestine almost entirely without noticing the moisture drained from the smushy brown leftovers now coating their bodies. Unluckily, Pinkie was also so lost in the moment that she failed to notice when her masturbating fingers touched something solid.

Twilight and Sunset yelped in alarm when the giant digit smashed into their faces and pressed them against the walls. This length of passage was far less constrictive thanks to Pinkie’s loosening efforts, meaning there was more room to move the girls. The others also continued being pushed forward, only to join those ahead. Pinkie’s fingers almost juggled her tiny friends as her digits split to maneuver their bodies in different ways.

Somehow, Twilight wound up flipped around with her face between Sunset’s thighs and Sunset in the same position. Following their prior pattern for dealing with peril while surrounded by smelly slipperiness, they started fucking until they eventually fell from the gaping ass hole. The shrunken smart girls hit the water with a soft splash, its coldness shocking them back to reality as they floated in the shallow pool. They stared up and beheld the incredible sight of Pinkie’s enormous ass and gaping anus with their friends still inside.

Rarity was next as the fingers twisted her, this way and that. Even though Pinkie was still lost in the throes of ecstasy, her digits still managed to pinch the tiny girl’s tits and poke her ass. Rainbow got a similar treatment as she joined her white friend in the rectum. Light poured in, nearly blinding the girl, so she had zero defenses against the fornicating fingers aggressively rubbing her sex. She cried out in lustful gratitude, but all that did was attract AJ to her calls. The orange farmer grabbed her blue and white friends to hold them steady. Having their naked bodies and perky tits press against her was merely a bonus.

Finally, Pinkie screamed at the top of her lungs as the most fantastic orgasm of her life sent sparks through her system. Her body stiffened as her mind went white-hot in bliss. She didn’t even hear the wet splash of her remaining friends falling into the bucket. Instead, she just stared into space as her climax’s intensity shook her form. She wasn’t sure what happened, only that she needed to do it again.

Eventually, Pinkie came down from her orgasmic hi and did the responsible thing. Not even taking the time to put on panties, she washed her naked shrunken friends, stowed them in her purse, and hurried back to Twilight’s place. After a bit of finagling with the levers and doohickeys, the tiny genius put the machine back in order, returning everyone to their full-sized naked glory. It was less awkward than they initially thought. After everything they’d been through in the last few hours, one more friend seeing them naked was hardly worth a fuss. The only question was where they went from here.

Author's Note

Well, that took longer than expected. I was initially hesitant about the concept. And while endosama still isn’t my thing, I think this turned out pretty well. Hopefully, I didn’t make Rarity too whiney, but I’m reasonably satisfied with everyone else’s characterization and ‘realistic’ responses to the situation. Here’s hoping you guys agree.