Pink Walls

by Doldrum of Despair

Rating: mature
Tags: My Little Pony: Friendship is Magic, Comedy, Pinkie Pie, Sex, Twilight Sparkle, Random
Length: 6953

Pinkie really wants Twilight to try something

Pinkie's Pinkie Sense has gone off—the doozy kind. Something you'd never expect to happen is going to happen, and Pinkie is convinced it's got to do with Twilight. She sets off to indulge Twilight in her new favorite activity, something Twilight doesn't think sounds very exciting. But trying new things never hurt anypony, right?

This was just a little something I threw together for a writing exercise. The first chapter was done in 72 hours with the prompt "The First Time" (later chapters came after).

Published 2013-02-09 01:20:02 UTC
Last updated 2014-08-17 00:21:29 UTC

Pinkie, what are you...?

“Have you tried it yet, Twilight?” Pinkie asked, bouncing up and down as she usually did.

“No. Why would I? It sounds disgusting.” Twilight tried to focus on her task, which was rearranging the library, again. Whatever Pinkie was rambling on about, she was breaking through Twilight’s mental barrier as she relentlessly followed her around the library..

“Oh, come on, Twilight, you’ve got to try it, it’s really, really super duper fun!”

“But wouldn’t it be painful?! What you’re describing doesn’t sound pleasant at all.” Twilight moved a stack of books over to an empty shelf near the door.

Pinkie stopped bouncing for a moment,

“Well, yeah, I suppose it would be a little uncomfortable the first time, and the smell is hard to get rid of without a long shower, but it’s so totally fun, and feels amazing, Twilight! You’ve just got to try it!”

“Let me see if I got this. You got another ‘doozy shudder’ and you’re assuming that the unexpected thing is going to be me trying out some incredibly gross activity?”

“Yup!”

Twilight gave in and put down her books, turning to her friend. “But, Pinkie! You’re suggesting that I let somepony... “

Pinkie nodded vigorously. “Uh-huh! It’s a lot of fun! Come on, Twilight, you can do it with me. Or maybe it would be me doing it with you.” Pinkie tapped her chin for a moment as she looked up, having stopped bouncing again. “I’m not really sure.” She shrugged, and returned to hopping up and down in place.

“I’m sorry, Pinkie, but I have to watch the library. I just don’t have time for... whatever you call that.” Twilight returned to putting books on shelves. Pinkie bounced after her.

“Spike can watch the library, and we could stop by to make sure he’s doing okay.” Pinkie opened her lips wide to reveal a wall of shimmering teeth.

Twilight looked around for some other excuse to say no. “Well, um...” There were no more books to put away, no scrolls to reorganize...

“Please?” Pinkie cocked her head to the side and blinked rapidly.

“I...” beads of sweat rolled down Twilight’s face.

“Pleeeeeaase?”

Twilight groaned. “Ugh, fine, Pinkie. I’ll do this once to get it over with if it will shut you up, but I’m really not looking forward to this.”

“Whoohoo! Thanks, Twilight,” Pinkie replied. “You won’t regret this, I promise!”

“I better not,” Twilight mumbled as the two of them turned and headed out the door.

~   ~   ~

“At the spa? Really, Pinkie?” Twilight groaned.

“No, silly. We’re just here to buy the pill Aloe developed. You’re gonna need it for this if you don’t want problems. Then all we need to do is find you a partner. Hmm, I wonder if Mackie would want to do it.”

“I am NOT letting your coltfriend—”

“What? He’s been doing it to me all week.” They walked up to the front desk and Pinkie whacked a hoof onto the bell.

“Yeah, but you two are dating! It almost makes sense for you to do that with him, but me—”

Twilight was silenced again as Lotus appeared behind the counter. She and Pinkie both turned their heads as she addressed them.

“Hello and welcome to the Ponyville Day Spa. What can I get you ladies today?”

Pinkie Pie leaned over the counter and placed a hoof on the side of her mouth as though to mask what she was about to say. “One v-pill please. For my friend here.” She tapped the hoof near her mouth in Twilight’s direction and turned her head toward her with narrow eyes. “Actually, on second thought, we might want to get two.”

Lotus’s eyes widened at the mention of the pill, and then her mouth followed suit when Twilight was indicated. “You mean, she’s...” Lotus never finished the sentence, but her smile grew as Pinkie nodded excitedly.

“It’s gonna be her first time,” Pinkie replied. Lotus vanished toward the direction of the back room without a second thought.

“PINKIE?!” Twilight crossed her hooves as her cheeks flushed red. “Why are you telling her that? Just get what we need and let’s get out of here, I don’t want to make a whole scene out of this! Besides, I’m still not sure I’m okay with this.”

Pinkie’s lower lip curled. “But Twilight, you promised. Please?” She dropped low to the ground and stared up at Twilight with big, glistening eyes.

Twilight tried to avoid her gaze, looking everywhere but at Pinkie. There was the mud bath, the massage chairs, the hot tub... Just then, Lotus returned with a small, colorful paper bag with handles. “Here you are, miss Pie. Enjoy.” She grinned at Twilight as though she were a child taking her first steps.

Twilight raised an eyebrow at her, then looked back down at Pinkie, who was now running in place on her four hooves, and giving her a look that made her wonder just what she was about to get herself into.

“... Fine.” Pinkie was insufferable, and Twilight really wanted to see what the whole fuss was about.

Pinkie handed Lotus a bag of about 20 bits, then picked up the parcel and placed it in her saddlebag.

“Okay, great. You’ve got the pill thingy, now can we go?” Twilight turned and started heading toward the door.

“Actually,” Pinkie added. “I just got an idea, let’s do it here!”

Twilight whirled around. Pinkie was once again bouncing in place with that goofy smile of hers that she got whenever she had an idea.

“What?! Here?!”

“Oh, sure! They’ve got a back room here. We go in the back room, you take the pill, and the fun begins.” Pinkie’s was rocked back on her haunches, leaving her head low and her rear end high in the air with her tail waggling back and forth rapidly. She still had that dumb smile on. “Please, Twi?”

Twilight stumbled backward for a few steps, her eyes darting toward the door. “I— but— Weren’t we going to go ask Big Macintosh if he would—”

“Yeah, but you didn’t like that idea. Besides, I thought maybe I could do it. Please, Twilight, I could make it that much more special for you.”

Twilight held her pose toward the door for a moment as beads of sweat ran traces down her sides. She gave an involuntary shudder and relaxed, head and tail drooping.

“Fine. I suppose if I’m getting that up close and personal with somepony, it may as well be you.”

Before she could begin walking, Twilight was instantly tackle-hugged by Pinkie.

“Oh, thank you thank you thank you. You have no idea how cool this is. I’ve been having fun all week, but now I get to have the fun from the other side, HEEHEE!” Pinkie Pie let go of Twilight and began dancing in place as she asked Lotus to show them the back room, who eagerly escorted them post haste.

~   ~   ~

The back room of the spa resembled somewhat of a personal lounge or a bedroom. There was a bed made up with red velvet comforters, a comfortable looking couch in the corner not unlike the one Rarity usually summoned when she was being melodramatic, some wine bottles all arranged neatly in a rack, and several other objects Twilight had never seen before. One of them was simply a long round length of rubber, about two feet long and several inches around. As Twilight contemplated possible uses for the device, Pinkie opened up the bag she’d purchased and pulled out a small box.

“Recommended only for use with unicorns,” Pinkie read aloud from the back of the box. “Well, you’re a unicorn, so I guess we’re set. I wonder why I’ve been able to do this with Mackie all week without any problems.” She ripped open the box and pulled out a small purple pill. “Ready?” She asked, turning to Twilight with half closed eyes. The look on Pinkie’s face caused Twilight to turn pale.

“I, um... Pinkie, are you alright?” Twilight asked, taking a few steps back.

“Huh? Oh, yeah. I’m fine. I’m just trying to make this really special for you.” Pinkie said. She tossed Twilight the pill. “Here. Just eat it, and the fun will begin.”

Twilight caught it with her magic. She stared at it for a few moments as she tried to make up her mind. Should I really go through with this? I could just not take it and leave. But I promised her I’d do it. I know it wasn’t a Pinkie promise, but it still feels like one.  Pinkie looked as though she might fall over forward at any moment. Her eyes were wide open and her tongue was hanging out slightly, saliva dripping from the tip of it. Twilight looked from the door to Pinkie and back, before finally opening her mouth, and popping in the little pill.

“Okay,” Twilight gulped. “Now what?”

“Now, we um... Let’s check the box.” Pinkie Pie strode over to where she’d dropped the box the pill came from. “Let’s see... Oh, here it is, step two: Cast protective spells. (instructions included)” Pinkie turned the box over and out slid a folded up piece of paper. Unfolding it, she brought it over to Twilight.

Except Pinkie seemed a lot bigger as she got nearer to Twilight.

“Um, Pinkie? Am I getting smaller?”

Pinkie Pie dropped the paper in front of her, and it landed with a resounding thud, sending a gust of wind and dust blasting into her face.

“Yup. You have to be small, how else was I gonna swallow you?” Pinkie Pie dropped low onto her front hooves and opened her mouth. “Come on, cast the protective spells and let’s get this over with. I can’t wait to feel you wriggling around inside me.” She let her tongue slide out, forming a sort of staircase into her mouth.

Twilight’s face paled again and she drew her head back at the thought of actually climbing inside Pinkie’s mouth. She looked back down at the paper, which contained two spells: One was for protection against bodily fluids, primarily stomach acids. The second one was an anti-breathing spell, which would remove the need for her to breathe. Both spells were said to last an hour, and were made simple enough that most unicorns would be able to cast it.

Twilight looked up at Pinkie’s gaping maw, and back down at the spells in front of her. Well, I came this far, I suppose there’s no turning back at this point. She gulped hard, and summoned the magical energy needed to perform the spell. Her horn glowed, and she arranged the leylines as depicted in the picture. But when she released the spell, nothing happened. The protection spell might have worked, but she was still breathing heavy. She tried again, and the spells still didn’t seem to work.

“Pinkie!” Twilight jumped as she heard the squeakiness in her voice. Pinkie must have heard it as well, because she then fell over on the floor and burst out laughing.

“Pfffthahahahaha! Twilight, you sound so funny!”

“Pinkie, the spells listed here aren’t working. I don’t think I have enough magical energy at this size to perform any spells. This isn’t going to work.” Twilight let out a breath. “Whew, I might not actually have to go through with this.”

Pinkie rolled over and glanced at her. “Hahahahahuh? What? Oh, hahahaha THAT’s why I’ve been fine all week. HAHAHAHAHA! Wait right there, Twilight. I’ll be right back.” Pinkie got up and trotted out of the room, closing the door behind her.

“Wait! Pinkie!” With the door being the shrunken equivalent of about a hundred yards away, Twilight tried teleporting after her instead. All she achieved was giving herself a massive headache. She decided to try other spells, but found that she was out of magic.

“Well, that’s just great. I’m out of magic, I’m about the size of a mouse in a room by myself, and the only pony who knows I’m here wants to eat me as a fun activity! Super.” Twilight slumped onto the floor, finding no pleasant outcome to her current situation.

After about a minute, the door opened and Pinkie trotted back in, followed by Rarity.

“Alright, Pinkie. Who was it you wanted me to— OH! My, Twilight?”

Rather than endure more relentless laughter from Pinkie Pie, Twilight simply nodded her head at the gargantuan white unicorn before her. Rarity immediately turned to Pinkie Pie.

“Pinkie Pie?! Why didn’t you have her cast the spells before you shrunk her?!”

Pinkie shrugged.  “I dunno. I didn’t think we needed to. It always worked out fine when you did it to me.”

Rarity slapped a hoof to her forehead. “Pinkie, I wasn’t the one being shrunk when we did that. The whole reason it specifies a unicorn is so that somepony can cast the spells. But poor Twilight is too small to have any magical energy left. Did you at least tell her she was going to be shrunk before you mentioned the spells?”

“Nopey dope.” Pinkie Pie replied without hesitation, as though such a thing were not a problem.

Rarity sighed, sliding her hoof down her face. “And I suppose this is why you’ve summoned me back here?”

“Uh-huh.” Pinkie nodded, eyes closed while the rest of her face smiled enthusiastically.

Rarity groaned, turning towards Twilight. “Alright, fine, but you owe me. I was in the middle of a wonderful mud bath.” Her horn glowed for a few moments, and she turned back to the door. “There, done. Enjoy yourselves, but please don’t bother me if you decide to go a second round.” She closed the door behind her as she left, leaving Twilight and Pinkie in the room together. Second round? Twilight wasn’t sure if she was ready for a first round, never mind a second time.

Pinkie took the few steps it took to get to Twilight, and leaned over again. “Ready, Twilight?”

Twilight began breathing heavily, then stopped as she realized that she hadn’t been breathing a moment ago. “Did it work?” She let all the air out of her lungs, and waited. One minute passed, then two. Sure enough, the dizziness that normally accompanied a lack of air was absent. It was a strange feeling. She could breath if she wanted to, but it wasn’t at all necessary. “I’ll have to remember this spell if I ever get stuck underwater.” Twilight looked up once again at the gaping maw before her, swallowed hard, and slowly, shakily stepped forward.

Doozy Twozy

“Eugh!” Twilight yelped as she placed a hoof on Pinkie’s tongue. It was soft and squishy and wet. It was a very unnatural feeling, but then again, what she was doing was very unnatural. Pinkie’s breath smelled strongly of cupcakes and various other baked goods. Twilight slipped on Pinkie’s saliva and fell forward, landing with all four legs straddling the wet squishy flesh beneath her. She was lifted off the ground, and then the world went dark.

“MMMMMMMMMMMMMMMMMM YMPPP TMMMMGMMMMMM!” Pinkie’s voice rumbled loudly in Twilight’s ears as she was squeezed up against Pinkie’s mouth.

“AGH! Pinkie! stop shouting like that!” Twilight tried to hold on the thick tongue beneath her, but it was far too slippery, and whatever Pinkie had tried to say, the act of doing so had caused Twilight to slide to the back of her throat. Her head collided with something very soft and dangly, while her front hooves slid over the back of Pinkie’s tongue. Alarm bells went off in Twilight’s head at the prospect of actually being swallowed by Pinkie Pie, and she began frantically sliding her hooves forward in an attempt to move backward up out of the throat.

“Um, Pinkie? I’m not sure I want to actually do this, now. Open up and let me out!”

Pinkie either did not hear her or did not care, because at that moment, her entire head tilted backward, leaving Twilight with no choice but to slide forward on the slippery tongue.

“Wha—! Pinkie, help, I’m slipping!”

With nothing to grip and her entire body lubricated from Pinkie’s saliva, Twilight slid down into Pinkie Pie’s esophagus. Immediately she was being squeezed on all sides. Twilight could not even move her legs as everything was pressed tightly against her and she slid down further into the belly of Pinkie Pie.

After a few moments, she slid out into a small cavity and stopped moving.

“Whoo, that was a doozy!” Pinkie’s voice resounded through the walls around Twilight, though not as loud as before. All at once, everything shifted and Twilight felt the sensation of being airborne. Then they landed and it happened again, and again, and again.

“Well, see you in an hour, Twi. I hope you have as much fun as I know I will!”

As Pinkie bounced out of the spa, Twilight noticed a slight stinging sensation on her back. She squirmed, trying to find the source, only to have it spread over her entire body.

“Ooh! Heeheehee, that tickles, Twilight. That’s probably my stomach. I remember the first time Mackie did it to me. It’ll go away in a second.” Sure enough, the stinging died away, although the walls around Twilight were getting wetter by the second.

Where the spa ended and outside began was only distinguished by the little bell on the door that had rung when they walked in.

“Oh, I almost forgot. We never told Spike to watch the library. Hang on, Twilight. It’s about to get bumpy. Pinkie’s stomach had almost filled up with fluid by now, and it began sloshing around as Pinkie started moving. Twilight struggled to find some sort of direction as she was jostled to and fro in the black wetness of Pinkie’s stomach, accompanied by the constant rumble of thundering hooves. After what felt like forever, the rumbling stopped, and there was a loud crash that Twilight could only assume was the front door to the library.

“SPIKE!”

At last the jostling stopped. Perhaps Pinkie had remembered that she had a passenger and was being gentle.

“Hey Spike, are you in here? Twilight has a message for you!”

Twilight felt herself being pulled roughly in one direction, then quickly in the other, at an almost impossible speed.

“SPII—Oh, there you are, Spike!”

“Huh? Pinkie Pie? What are you doing here? Where’s Twilight?”

“Oh, heeheehee, she’s around.” Twilight felt something firm press up against her from underneath. The liquid had also begun to drain from her stomach.

“Well, where is she? I haven’t seen her all day.”

“That’s because you just woke up, silly. Twilight told me—well, actually, it was my idea, but Twilight was the one who said somepony would need to watch the library, so it’s almost like she told me to tell you. Twilight wants to tell you that she’s going to be busy and you need to watch the library today. Have fun!”

“Wait. Why couldn’t she just tell me that herself?”

“Because she’s busy. Duh!”

Just then, Twilight noticed the other end of Pinkie’s stomach had opened up, and the liquid was drained.She began sliding, headfirst into a much tinier passage.

“Ooh, looks like the first part’s over, now the real fun begins!”

“Huh? Pinkie, what are you—”

“See you later, Spike!”

Twilight heard the door to the library close, and could only assume they were now outside. This was confirmed by the rhythmic ‘clopping’ of Pinkie’s hooves on the packed dirt below.

“Let’s see, what should we do first? La la-la la-la la-la...”

Pinkie began bouncing again, this time humming her pointless little jingle. Twilight was growing nauseous from the constant up and down of Pinkie’s pronking.

“Ugh, why did I ever agree to this? This isn’t fun at all! Of course Pinkie Pie of all ponies would enjoy this if her coltfriend did it, but why would she think I would find this fun? Ugh, I think I’m going to be sick. If only I could just teleport out.”

The bouncing and humming continued for the better part of an hour, during which Pinkie stopped at sugar cube corner to bake some cupcakes, and give gummi a bath. During the brief moments when Pinkie wasn’t bouncing around in a perpetual state of excitement, Twilight could feel herself being pushed forward by the soft muscles inside Pinkie’s intestines.

Being squeezed became a very familiar feeling before long, and aside from the nauseating sensation of bouncing up and down, it actually began to be enjoyable. It was like being hugged on all sides by a giant wet hug monster. Twilight didn’t even mind being in the dark anymore. It was like everything had suddenly become very clear—like she had slipped into some sort of euphoria during her time in here. Whatever the case, it didn’t matter. Twilight was actually enjoying herself, despite sweating enough to replace whatever lubricant was keeping Pinkie’s walls moist.

Then, her air ran out.

“Okay, Twilight, I think it’s time to um... evacuate you, now,” Pinkie called.

Twilight noticed that her breathing necessity had returned just a little bit too soon, and her heart began to race as she hoped helplessly that Pinkie could get her out in time. Such prayers were answered when she felt a much stronger squeeze then before. Everything began pressing against her like a vice, until she began sliding forward somewhat quickly. Then Twilight’s face became smooshed up against something very firm, and the rest of her body became backed up against her head.

“Almost there, Twilight. Hang on, here we go.”

The walls around Twilight squeezed her so tightly she thought she might pop, until her head finally pushed through the obstruction, out into daylight. She gasped loudly as her lungs filled with air and her head stopped swimming.

“Welcome back, Twilight,” came Pinkie’s voice, though loud and clear this time.

Twilight opened her eyes to see a lot of curled pink hair dangling from some point above her head. Looking down, she noticed that she was quite a height off the ground. Before she had time to realize she was going to fall, Twilight did exactly that, sliding the rest of the way out between two pink walls with a wet pop.

“Oof!”

She landed on her back, staring straight up at the back of Pinkie’s legs and the underside of her tail. Twilight lay wet and dripping on the floor, breathing heavily.

“Whee! That was fun.” Pinkie Pie had turned around and was now facing the small wet bundle that was Twilight. “Thanks, Twilight. Let’s get you cleaned up. I’ve got a bath ready and everything. And the best part is, after we get you washed off, we can go ANOTHER round! Isn’t it fun, Twilight? Was I right or was I right?” Pinkie Pie picked up Twilight and dropped her into a small bowl full of warm, soapy water.

“Nnnnnnngh,” Twilight groaned as she settled into the bath. “Pinkie, I don’t think I can do that again. I suppose it was fun the first time but I’m exhausted. When does the shrink pill wear off?”

“Oh, that’s the best part. Whenever you want it to. You just imagine yourself getting bigger and it zaps you back to full size. Otherwise it just wears off after a day. That way you can do it multiple times if you want, but the spell has to be recast every time, so I usually have to bug Rarity again.”

Twilight closed her eyes and relaxed into the water, deciding to zap back to normal size later. A splash next to her caused her to open them again. Twilight nearly jumped out of the bath when she found Pinkie splashing in the water next to her, just as small as she was.

“Huh? Pinkie! What are you doing in the bath?! Furthermore, how did you get so tiny?”

Pinkie laughed. “The v-pill! I bought two. Remember?”

Twilight slumped in the water, narrowing her eyes. “Uh-huh. So, now what?”

“Now you get big again, and then it’s my turn!” Pinkie pie splashed around some more.

“What? Pinkie!”

“Oh, come on , Twilight. I ate you. I wanna turn now. You gotta share, you gotta care.” Pinkie’s lip curled up and she splashed with her hooves as though she were a foal who had just been told she couldn’t have her favorite toy. “You just have to make yourself big again, and cast the spells on me, and I’ll do the rest. All you have to do is not eat anything for an hour.”

Twilight thought about it for a moment, then gave in, after realizing that trying to argue with Pinkie would be a lost cause.

“Fine.”

“Yay.” Pinkie then tackle hugged her in the water, and the two splashed around for a bit, before Twilight did as Pinkie instructed, and imagined herself bigger. Finally back to her original size, Twilight zapped herself around the room a few times to stretch out her horn, before casting the spells from earlier on Pinkie Pie.

“You ready.”

“Yup yup yup! Whee, this is gonna be fun!”

The Masters

Twilight did not have time to mentally prepare herself. Her brain instantly formulated several contingencies, but none could have prepared her for this. To begin with, the sensation of having a living, squirming, pony on her tongue made Twilight want to hurl, but Pinkie certainly wouldn’t thank her for that, and Pinkie had been such a great… host, to her before.

Then there was the taste. Pinkie Pie just tasted of… well, it was hard to put a name on it other than just Pinkie. It was somewhere between sugary sweets and... parties; if parties had a flavor that could actually be experienced via taste buds, this was it.

When Pinkie was fully on, Twilight retracted her tongue, trying to remember what Pinkie had done last time. She would certainly want the full experience. Twilight closed her mouth and squeezed Pinkie up against the roof of her mouth, which—aside from exacting a cacophony of excited squeals and giggles from Pinkie—only released an explosion of taste to Twilight’s tongue. Her saliva glands began working overtime as Pinkie flavor washed over her senses. It was all Twilight could do not to just swallow her right then and there.

“Mmmmmmmmm-mmmm-mmmm-mm-m-m-m-m.” Twilight shivered, but held back her throat muscles from claiming their prize.

Slowly, as she began to regain control over her mouth, Twilight began to swirl Pinkie around with her tongue, moaning at the signals it sent to her brain, but focusing on giving her friend a fun time. Twilight’s mouth vibrated with her own strangled moans and with Pinkie Pie’s giggling.

The strong flavor leaking onto Twilight’s tongue was so intoxicating she nearly lost her balance. She lay down and rolled over onto her back, mouth open, chest rising and falling quickly. The squirming lump in her mouth began sliding backwards as soon as she did so, pressing against the back of her throat. Involuntary muscles began grabbing hungrily at their captive, but Twilight wanted to enjoy this a bit longer. She closed her eyes and focused on not swallowing, ignoring a disappointed moan from her throat.

Several minutes went by. Pinkie had stopped squirming, Twilight lay back, breathing slowly. The two of them consumed in each other’s embrace, when Twilight relaxed a little too much. Involuntary muscles finally triumphed, and the cute lump in her throat slid further back, down past her gullet and en route to her stomach.

“Oh, heheh, oops.”

She could feel Pinkie sliding down her throat, wriggling the whole way—now that she’d realized the fun was beginning again. It was like being tickled from the inside, and Twilight couldn’t help squirming a little at the new sensations.

“Hmm-hmm. Pinkie, that tickles.”

As Pinkie settled into Twilight’s stomach, Twilight felt a little disappointed that it was over for now, but Pinkie would come back in an hour anyway, so she picked herself up and went back to the library to check on Spike.

~   ~   ~

“SPI-IKE!” Twilight called out her favorite assistant’s name purely out of habit as she trudged through the door to Golden Oaks Library. There was a rapid shuffling of footsteps and Spike came racing down the main stairway.

“Oh, Twilight. You’re back. Pinkie said you were busy. What were you doing?”

“Oh, just some experiments with Pinkie Pie.” Twilight walked past him and up the main stairway.

“Wait, but then, how come Pinkie came back to tell me? Why couldn’t you do it? And what sort of experiments were you doing?”

Twilight gave him a blank stare. “You don’t want to know,” she deadpanned. Seeing Spike manage to fight back the question rising in his throat, Twilight continued up the stairs to her bedroom. She had some research to do.

Right as she got to her room, she felt a squirming in her gut that could only mean Pinkie had moved from her stomach into her intestines. She wasn’t used to having solid objects in there, and she could feel every wiggle, every small tickling movement her friend made. She nearly didn’t make it to her bookshelf, but finally she pulled out Obscure Oddities from her mature section, curled up on her favorite pillow, and magically flipped to the section on vore.

As it turned out, the idea had existed for quite some time—as the case would be with any idea, as an idea always exists, and simply needs to be discovered—but it never had practical use until somepony brought together a few different spells used for completely different purposes. An infinite air spell, developed for divers so they could stay submerged for long periods of time, without the use of air tanks; An anti acid spell, commissioned by a team of chemists who worked with harsh chemicals; And the latest addition, a rare compound discovered by a botanist who had accidentally ingested a few otherwise dangerous plants, and been daring enough to conduct further research on the effects it had produced.

Twilight flipped back to the front cover of the book. It was about ten years old, so it was likely that the ‘v-pills’ Pinkie had purchased were the product of that botanist’s latest research. She had said that Aloe and Lotus had developed it though…

Twilight jumped up, causing the book to flop off of the pillow. The implications of what she had just put together in her head were too intriguing to pass up. She looked at the clock, she’d only been here about 5 minutes, meaning she had a good half hour or more left before Pinkie’s turn was up. With no time to lose, she teleported straight to the main lobby of the library.

“Spike, I’ve got to check on something. I’ll be back soon, but for now… just continue whatever it is you were doing.”

Spike looked down at her from the top of a ladder with a feather duster in hand. “Uh, sure, I guess.” He turned around and picked up a book, proceeding to dust it off. Twilight took off out the door, ignoring the tickling sensation coming from a very precise spot in her abdomen. Pinkie Pie would surely thank her for this, if her theory was correct. She cast a modified version of the infinite air spell as she ran. It was a bit more complicated than the original, but it meant she wouldn’t be out of breath when she arrived.

It only took about 5 minutes to reach the spa, and she calmly strode up to the desk upon entering. She rang the little bell, and before long, Lotus appeared from behind a curtain to the left.

“Good afternoon, welcome to the Ponyville Day Spa. How can we be of service to you today?”

Twilight levitated a few bits from the small coinpurse she’d brought with her, and placed them on the counter. “I’d like a very private session with one of the head masseuses. if that’s alright with her.” Twilight looked across at the blushing blue earth pony with a wry smile. “In the back room,” she added, flashing her eyebrows this time.

“Oh, my. Um…” Lotus fumbled for the words “We wouldn’t normally but um… we are rather slow today and um… let me check with my sister.”

She disappeared for a moment, during which Twilight’s thoughts returned to Pinkie Pie. She rubbed her abdomen where she knew Pinkie was, and received a delightful tickle in response.

A moment later, Lotus appeared with Aloe, who spoke up immediately. “We are rather short on time, but a quick session could be fit in, depending on your desired activities.”

She beckoned with a hoof and escorted Twilight toward the back of the spa. The two sisters trotted perfectly upright, occasionally brushing up against Twilight as they went. They arrived at the same room she and Pinkie had used earlier, and the two earth pony sisters ushured Twilight inside.

The door closed, their demeanor changed entirely. the two of them turned on her with seductive eyes, moving with graceful but exxagerated movements. “And how may we… service you today, Miss Sparkle?” Lotus asked in a low tone, drawing out each word.

Twilight giggled a bit. “Well, we could get to the fun in a minute, but first I wanted to ask you two about something.

“Yes?” Aloe leaned on Twilight a bit, running a hoof down Twilight’s cheek and rubbing her back with the other, moving closer to her rear.

Twilight tried to ignore them, and forced herself to remember her idea. “Pinkie told me you two developed the little ‘v-pill’ you sell, in which I assume the v stands for ‘vore’.”

Aloe’s eyes flashed up to Twilight’s horn, then locked her gaze. Her seductive grin grew even wider. “And you’d like a session with one of us, I presume?” She began licking Twilight’s neck, and moving up toward her cheek. Meanwhile Lotus began rubbing her belly, which drew several wiggles from Pinkie. Twilight tried not to squirm, but a chuckle from Lotus told her the masseuse knew what her reaction had been.

“Well, not a session exactly, but as you’ve already answered my first question, I’m curious about what you two have done with it.” Twilight cleared her throat as Lotus began licking her flank. Both earth ponies ceased their advanced and stood calmly in front of Twilight, grinning eagerly.

“What are your favorite activities, as both pred and prey? I have a good friend on the inside, and I want to make this really special for her.” Twilight rubbed her belly and smiled fondly down at it.

Aloe and Lotus’s faces brightened up intensely. They both leapt forward and grabbed Twilight by the hooves, dragging her to the bed. They thrust her onto her back and crawled up on either side of her, each rubbing different portions of her abdomen.

“How far along is she? Aloe asked, caressing Twilight’s belly with her cheek.

“Um—” Twilight’s brain was having trouble contemplating the very discussion she was having. “—she just left my stomach a little while ago…” Aloe’s hooves shifted to Pinkie’s exact location.

“Ah, found her.” Aloe let out a little hum of delight. “I was the one who came up with the idea for the pill. Useful little thing. Lotus was always the predator and I the prey. We’ve switched a few times, but we both like it the other way.” She smiled and began massaging that spot on Twilight’s belly, occasionally slapping it very gently. Each time Pinkie would wriggle around and it would send shivers up through Twilight that made her feel very… aroused. “I always enjoyed when my sister would massage me from the outside. She always knew just how to get the muscles to stimulate some incredible sensations. The pill is designed to enhance your experience of course—in addition to making you just the right size for such an activity—but a little assistance from an experienced pred always helps.”

Lotus moved up and began licking Twilight’s cheek, then slid onto her and began kissing her passionately, but paused to tell her side. “Mmm, you’re tasty. Yes I was always the pred. It was fun having my sister inside me. She knew how to stimulate me from the inside as well, so we both made each other happy. You know…” She looked up at Twilight’s horn. “As a unicorn, you could make things—” She reached up and gave Twilight’s horn a lick, which only made her feel even hornier. “—even more special.”

Fighting back the moan that threatened to escape her lips—the spa twins certainly were good at their profession—Twilight asked “H-how?” Lotus continued assaulting Twilight’s horn, a sensation she was most definitely not accustomed to.

“Oh, you just modify your internal fluids a little bit. Make them more… pleasure oriented. They’ll taste sweeter, make her feel more euphoric than the pill already allows for.” Lotus let out a giggle. “Do it right and you might have to peel her off the floor when she comes out, since she’ll be gooey ball of giggles. And of course you can increase your own sensitivity, so such wiggles and wriggles—” At that moment, Aloe patted Twilight’s tummy again, drawing an especially sensational movement from Pinkie, which combined with Lotus sucking on her horn, almost threw her into an orgasm. “will ‘tickle’ your fancy as well.”

Aloe abandoned her massaging of Twilight’s tummy and hopped off the bed. Meanwhile Lotus abandoned her sensual assault on Twilight’s horn, and took her sister’s place. She turned around so her rump was on Twilight’s chest, and she could massage Twilight’s abdomen with her hooves. But she leaned down and gave Twilght’s nether region a lick, making it extremely difficult to focus on her spells.

“Gyah!” Twilight’s head was swimming in sensual overload, and the worst part of it was, she wasn’t even into mares. But dammit Lotus was reeeeally good at this. But Twilight remembered why she was here, and focused on Pinkie Pie. She closed her eyes, doing her best to ignore the sexual assault she was being submitted to, and focused on her intestinal tract.

She found Pinkie, then focused on the lining of her intestinal fluids. Make them more pleasure oriented. Twilight wasn’t really sure how to do that, but at this point she could smell Lotus in front of her, and decided perhaps she could make it something like that. She focused on the mare’s fluid’s chemical make up, then thought of the sensations she and Pinkie should be experiencing, and added a standard amplifier algorithm to the spell. Once she had it right in her head, Twilight redrew her focus on her intestinal wall and cast the spell.

Shivers ran up and down her gut and suddenly she could feel the entire length of her digestive system without even thinking about it, and she could feel a solid—yet somehow, soft—lump right where Pinkie ought to be. Her friend was writhing around inside her intestines, even moreso than before, and it was turning Twilight on in a way she never would have thought possible. She threw her head back onto the pillow as her eyes rolled back in her head, and just lay there, letting the continuous ripples of pleasure penetrate through her whole body. She couldn’t even feel Lotus anymore.

After what had to be at least ten minutes of constant pleasure waves coursing through her whole body, Twilight finally felt something pressing up against her rump from the inside.

“Um, Lotus?”

“Mm?” Lotus lifted her head up and turned to look at Twilight. Her lips and chin were dripping with what could only be a mix of saliva and Twilight’s own personal juices.

“I think our time’s up.”

Lotus’s eyes widened, and she quickly hopped off of Twilight and onto the floor. “Oh, um. Right.” She quickly wiped off her lips, then checked the clock in the corner. “U-unfortunately that’s all I have time for. Aloe actually had to leave earlier. I’ll just leave you two to yourselves. If you’d like extended time, just leave the tag on the door so we know someone’s in here.” She opened the door slightly, peeked out, then left quickly and closed it behind her.

Due to her heightened senses, Twilight could feel Pinkie still squirming inside her butt. “Alright, Pinkie, hang on.”

Twilight stood up, and searched for a decent spot to… deposit Pinkie. The area near where her butt had been on the bed was completely soaked. Twilight wasn’t exactly sure how much of it was from her but judging by the smell, probably a lot. Lotus must have gotten quite the drink for her efforts. Twilight decided she’d rather not soil more of the blanket so she took a step forward and squatted down a bit over the offending spot on the sheets.

“Okay, here we go.” Twilight squeezed, as she normally would have, and was rewarded with a small ‘pop’ as Pinkie’s head slipped through her anus. Another side effect of having heightened sensory input was the feeling of something sliding in or out of her was even more pleasurable. Twilight let out a groan of ecstasy as Pinkie slid all the way out with a wet ‘plop’ and fell onto the bed.

“Welcome back, Pinkie.” Twilight called, turning around t greet her friend properly. “How was it?”

She found a completely dazed Pinkie Pie staring back at her through glazed eyes. She was twitching slightly, but was otherwise fine, owing to the ridiculous grin on her face.

“Me too, Pinkie,” Twilight chuckled. “Me too.”