Potion Busters

by Jest

Rating: mature
Tags: Rainbow Dash, Random, Sex, Twilight Sparkle, My Little Pony: Friendship is Magic, Anthro, Porn, Fetish
Length: 6202

Rainbow Dash, and her girlfreind Twilight Sparkle, have opened a potion shop and have decided to 'demonstrate' a few of their wares.

After their little misadventure trying to reduce Rainbow's bust size, the pegasus speedster, and her girlfreind Twilight Sparkle, have opened a potion shop and have decided to 'demonstrate' a few of their wares.

(It is not neccessary to read the previous one, though if you liked this one, you'll like that one. Done as a request from a patron. If you want a chance of getting a story like this written for you, or just want to get updates early as well as access to patreon exclusive content, head over there!)

Fetishes include.... Gender Bender, public sex, orgy, transformations, hyper dick growth, stretchy ponies, cum inflation, breast and ball growth, aphrodisiac use, and anthro.

Published 2019-07-27 21:50:02 UTC
Last updated 2019-07-27 21:50:02 UTC

Showing Off

Rainbow Dash sprinted down the street, a nervous, and excited grin growing on her face as she made a beeline for the newest shop in Ponyville. Her shoulder length hair was tucked into two pigtails that streamed behind her as she ran, and for once she didn't have to worry about her tits smacking her in the face, as they were one third of their normal size. That meant they were still solid double d’s mind you, but compared to triple H’s, they were positively tiny. The shirt that contained said breasts was a teal tube top that displayed a little bit of her midriff and just enough cleavage to make people stop and stare without too saucy for public.

Her pants were also tight, her jeans clinging to her legs and revealing her slightly smaller, yet still amazing ass. Her curves were subdued, shrunken slightly, but were still far more impressive then what most ponies could claim. That wasn't the only thing that was different about the pegasus though, as she also wore a simple black necklace with a tooth in the centre. It didn't fit her usual aesthetic, but she was getting used to it and it was also a necessity if she wanted to continue to fly with the wonderbolts, so she kind of had to get used to it.

With her quick pace, she made short work of the distance to the shop and smirked when she noticed there was a small collection of ponies cluttered outside, all of whom looked nervous, and were glancing around at one another. Above them was a large neon sign that displayed the name Potion Solutions, in bold lettering. Though the interior of the small shop was dark, in the window was a large sign that said ‘Demonstration and free samples handed out on Friday the fifth. Must be eighteen or older.’

Though not much had been announced about the shop itself, the town had been abuzz with rumours, which Rainbow Dash knew were mostly true. Smirking to herself, Rainbow Dash made her way towards the back of the shop, and to the secondary entrance next to a dumpster. With her thumb and forefinger keeping her nose plugged, she pulled out her key and slipped it into the lock before giving it a turn and trotting inside.

Flicking on the light next to the door, she looked around.

The backroom was relatively small, and was predominantly filled by tables stuffed to the gills, with various alchemical watchamiggers. Sure they had actual names, but to Rainbow Dash they were all weird boiling liquids and random other science doohickies she didn't care to memorize the names of. All she did care about was the computer in the corner, and more specifically, the alicorn currently hunched in front of it, a strained expression on her face.

“Ooooh Twilight, your favorite pony in the whole world is here.” Rainbow Dash called, trotting up to the alicorn and draping her arms over Twilight’s shoulders.

“Hmm that's strange. I don't remember giving Celestia a key to the shop.” Twilight mused.

“You jerk.” Rainbow Dash growled, poking her girlfriend in the tit.

Twilight spun around in her chair and pulled Rainbow Dash into her grasp with her magic, squeezing the pegasus against her titanic bust. The second Rainbow Dash felt those enormous breasts squish against her chest, any anger left inside of her fled her system and left behind only a pleasant warmth. The pegasus quickly hugged back, squeezing her comparatively smaller chest against her girlfriend’s, a smile on her face.

“So why were you sitting in the dark anyway?” Rainbow Dash inquired.

The alicorn shrugged. “This formula for the next potion isn't coming out right. By all standards of measurement it should come out perfectly, but it just doesn't.”

Rainbow Dash peered over the alicorn’s shoulder and at the screen, where she expected to see a normal formula, only to see to what amounted to four dimensional chess. The formula was intermingled with several other sets of numbers, symbols, and so much techno jargon that Rainbow Dash wasn't even wholly certain it was written in equish.

“You forgot to carry the two.” Rainbow Dash muttered, pointing at the screen. “See? Right there.”

“What, where?” Twilight spun around and leaned in, her face mere inches from the screen.

After several tense seconds, the alicorn leaned back and glared up at the pegasus. “Very funny Rainbow Dash.”

“Now were even.” Rainbow Dash stated.

Twilight sighed. “True.”

The alicorn stood up and ran a hand down her shirt, smoothing out the pink and teal striped fabric. The top was tight, but not too tight, showing off Twilight’s considerable assets, and numerous curves. The knee high skirt she wore followed the same color scheme, with the stripes going down from her shirt and meeting the ones on her skirt. Rainbow Dash raised an eyebrow, only now realizing that the words ‘Potion Solutions’ was printed above the mare’s heart.

“Wow Twi, you really did get those corny uniforms made.” Rainbow Dash replied, smirking at the alicorn’s shirt. “You know we are like super famous, you don't need a name tag.”

“I don't have a name tag.” Twilight declared proudly. “And it's precisely because we are so famous that I want to wear the uniform, so they know we own the place.”

“That's fair.” Rainbow Dash shrugged. “I’m not wearing one though.”

“I didn't think you would.” Twilight replied with a giggle. “Besides, the sign twirler doesn't need one.”

“You wouldn't.” Rainbow Dash replied, her eyes narrowing.

“Got you again.” Twilight replied, booping her girlfriend on the nose and pulling her in for a passionate kiss.

This time Rainbow Dash all but fell into the alicorn’s embrace, diving deep into the other mare’s lips and getting lost within. The two ponies made out for over a minute before Twilight gently placed a hand on Rainbow Dash’s shoulder and politely pushed her away. “We should probably get ready for the grand opening. Unless you want to post pone that so I can fuck you on the cash register.” She whispered.

Rainbow Dash chuckled nervously, putting her own hand on the other mare’s shoulder and keeping her at bay. “Wow, where did all this confidence come from? Scratch that, I know you took it from me somehow.”

“You know I could give it all back to you.” Twilight whispered, pulling Rainbow Dash in close and making the pegasus feel the hard length pressing against her midsection.

“God you are so fucking hot.” Rainbow Dash muttered, unable to resist Twilight’s tempting touch.

“And you are even hotter without that necklace Zecora helped me make.” Twilight replied, her finger resting just under the necklace and teasingly tugging it up slightly.

“It is kind of nice to be able to switch back and forth…” Rainbow Dash muttered, her cheeks glowing hotly as a blush dominated her features.

“Sooo, is that a yes?” Twilight pressed, leaning closer and slowly wiggling the necklace higher up Rainbow Dash’s neck.

“I g-guess.” Muttered the pegasus who straightened her neck slightly, allowing the necklace to be lifted up and away from her.

For a second, nothing happened, then like a spring, Rainbow Dash’s breasts rapidly expanded, going from a solid double D, to her normal triple H cup size. Her shirt stretched and contorted, somehow managing to keep up with the rapid expansion without ripping itself apart. Though that didn't mean her shirt was unchanged, as it went from exposing only a bit of midriff to basically turning into little more than a strapless bra.

The mare shuddered, clutching her massive breasts and shivering in pleasure, the strange transformation leaving her oddly sensitive. “There we are.” Twilight whispered, her fingers trailing down Rainbow Dash’s right breast. “I bet you enjoy being my big tittied slut, don't you Rainbow Dash?”

“Stars above do I love it.” Rainbow Dash moaned, the mare arching her back as Twilight continued to claw at her breasts.

“So just lay back, and let me give you exactly what you want.” Twilight purred, her hands gripping Rainbow Dash’s waist tightly.

The pegasus smirked suddenly, pushing the alicorn back a step. “Ah ah ah, we have customers you know.”

Twilight pouted, only to reluctantly sigh a second later. “I guess your right. Since when did you become so responsible?”

“Since you traded it for my confidence.” Rainbow Dash replied, sticking her tongue out at the other mare.

Who chuckled, and shook her head. “Well, we better get this started.”

Rainbow Dash nodded, and walked over to the other door, which lead into the front of the shop. After pushing it open she stepped to the side, allowing Twilight to awkwardly shuffle through. The alicorn kept one hand on her cock, keeping it from tenting her skirt too badly and giving everyone a free show.

The pegasus snickered at the sight, silently shaking her head. “You know for the first little while I was kinda envious of you, but after seeing you deal with that monster on a regular basis I think I’ll stick with these stupid fat tits.”

Twilight grunted, her cock slowly shrinking, and nearly giving her a headrush as all the blood flowed back into the rest of her body. “You think this is bad, you should have seen me before I was dropping bi daily loads inside of you. I was popping boners nearly constantly.”

Rainbow Dash blushed and shook her head, gesturing to the front of the store. “Just let them in before you pop another.”

The alicorn nodded, and turned on the lights before trotting over to the front of the store and turning the latch. Pulling open the door, Twilight stood off to the side and extended her arm invitingly. “Come in, come in, the demonstration and free samples will be handed out in a few minutes, please feel free to look around until then.” She declared in as friendly a tone as she could muster.

The ponies that entered seemed nervous for the most part, either that or awkward, and though they all appeared eighteen, a few came in with large, and obvious disguises. Shaking her head, Twilight lit her horn and cast a quick scan spell, only to feel a little more confident when she discovered everyone was indeed of legal age.

“I know a shop like this is strange, and new, and your no doubt fearful of the possible ramifications of using our potions.” Twilight began, the alicorn rising to her full, and towering height when she spoke, allowing her to look out over the crowd all at once. “That's understandable, and you have my complete assurance that these are safe, and have no long term adverse effects.”

“How do you know?” Shouted a female voice from the back of the room.

“Extensive testing.” Twilight began. “But I know you want more then just my assurance, which is why we are going to have a little demonstration in just a moment.” The alicorn turned to Rainbow Dash, and noticed that she was already reaching for the crate she had set aside for just such a moment. “My assistant Rainbow Dash will help me in demonstrating the effects of the potions, and after, if there is time, we will take questions and then hand out free samples.”

The crowd generally nodded, or otherwise seemed to accept the answer, remaining quiet and merely looking around the shop, to where numerous potions lined the various walls. The rows of product having been pushed away from the center of the room to give space for the small stage set off to the side. A glance over at Rainbow Dash told Twilight that the pegasus was already on it, and was moving to the designated spot, crate under one arm. Following her lead, the alicorn trotted over to the stage and hopped up and onto it, nodding to her girlfriend.

“Now then, first we are going to show you how the effects of the futanari potion.” Twilight declared.

“This is going to get freaky folks, so you had best prepare yourself.” Rainbow Dash added.

A few ponies shifted nervously while others gave the ponies on stage odd looks and most were simply confused and anxious.

“Now then, first we will demonstrate the futanari potion.” Twilight began, lifting a small purple vial filled with a thick, viscous liquid. “Like the name implies it will give any more who drinks it, a male’s genitals in addition to their own normal ones. This potion will not give the mare the ability to impregnate their partner, and seed produced will be infertile, but will look, smell and feel identical to the real thing.”

Rainbow Dash snatched the potion out of the air, and flicked off the cork. “Here, I’ll show you how it works.”

The pegasus threw back the contents of the potion, swallowing it all in a single mighty gulp. “Ah, it also tastes like grapes.”

“All potions have flavor added so as to make them palatable.” Twilight added hastily.

“Here it comes.” Rainbow Dash muttered, her hands going down to her jeans, and pulling off the button.

The second her jeans began to slide down her body her throbbing length all but leaped out, the dick having gotten caught on the mare’s purple, lacy panties which had Twilight’s cutie mark at the centre. Twilight rolled her eyes and used her magic to tug the fabric aside before Rainbow Dash even had to bother. Which allowed the newly created dick to spring free of it's prison and to bounce around in clear view of everyone.

A chorus of oohs and ahhs could be heard from the crowd, some of whom shook their heads at the sight.

Twilight cleared her throat, and used her magic to grab Rainbow Dash’s dick and bring it up so all could see it's teal and white mottled length, and large semi flared head. “As you can tell, the effect produces a set of genitalia the same color as the user’s fur, and is not painful at all.” She explained.

“It feels great, like really fucking great.” Rainbow Dash added with a smirk, the mare giving her entire body shake, sending her dick and tits bouncing around.

“Ahem, yes.” Twilight muttered, a fresh blush crossing her cheeks. “It also lasts for about six hours, but we do sell disenchantment potions that can remove the effect early.”

“And it feels exactly like the real thing.” Rainbow Dash announced with a knowing wink.

“Be aware that it is still a part of you and if it's injured, it will be painful in addition to that injury getting transferred to another part of your body when it wears off.” Twilight concluded.

“Yeah so don't get it pierced or something.” Rainbow Dash added with a shrug.

“Now then, we will proceed to the Hyper line of potions.” Twilight began, her magic retrieving two more potions from the crate and levitating them up. “These potions will give you a much, much larger cock, as well as a set of balls that will make an adult dragon jealous.” Twilight explained, lifting one potion after the other to further illustrate her point.

Rainbow Dash’s ensuing grab for the bottles was unsuccessful when Twilight yanked them out of the way, the alicorn shooting her girlfriend a smirk. “Ah ah ah, these are mine.”

“Oh come on, I thought it was my turn!” Rainbow Dash whined.

Twilight shook her head. “You should have thought of that before you teased me.”

Then, before Rainbow Dash had a chance to intensify her pouting, or offer up any words of disagreement, the alicorn popped both corks and drank both potions at the same time. After gulping down the strange red and green liquid, the alicorn spread her legs and moaned aloud, the changes starting mere seconds after she had consumed the liquid.

Moments later, the confused looks of the shop’s patrons were answered as a truly enormous cock rolled out of the mare’s skirt, followed closely by a pair of balls so big the alicorn could probably sit on them if she wanted to. With a sigh of contentment, the alicorn grinned and ran a hand down the mostly soft appendage. “As you can see, this potion enables it's user to gain the appropriate sized genitalia for mating with far larger creatures, such as dragons and the like.” Twilight explained, the alicorn stifling a moan by covering her mouth with a hand.

“Plus if you get the super stretchy potion you could totally fuck a dick that big.” Rainbow Dash added.

The already shocked crowd let out a collective gasp, their eyes glued to the enormous cock that was even now growing to become nearly as long as Rainbow Dash was tall. Her balls stopped growing at about this time, coming to rest at the size of a pair of boulders so big the alicorn could no longer close her legs and was forced to walk bow legged. The crowd which seemed to already be on the edge of their seats, let out another gasp, a few mares and stallions blinking in shock, while others looked on in barely contained arousal.

“The potions themselves can be mixed with other ones as you can see, and even drinks.” Twilight continued, the alicorn grunting as the sheer weight of her dick made her stumble slightly. “Just be aware that this can be quite inconvenient.”

“You think that's inconvenient, wait until you get stuck on the end of that bad boy.” Rainbow Dash added with a snicker.

Grumbling silently to herself, Twilight magicly tore the panties off her assistant and handed her the next vial. “My lovely assistant will now demonstrate the effects of our aphrodisiac, isn't that right Rainbow Dash?” Twilight growled.

The pegasus shrugged, unbothered by the command, and the loss of her undergarments which werent hiding much anyway. “Eh, sure whatever.” She muttered before grabbing the potion, popping it's top and throwing back it's contents.

After a belch, Rainbow Dash patted her stomach. “Ah, that one actually isn't bad, kind of like bubble gum. Hey Twilight, what's an aphrodisiac anyway?”

Twilight face palmed. “I told you about… you know what, never mind.” The alicorn shuffled slightly until she was facing the crowd once more. “Our aphrodisiac works wonders, and within seconds of ingestion will begin to make the user feel hot under the collar.”

“That's it? That's stupid.” Rainbow Dash remarked, only to gasp, her hands going between her legs. “W-what was that?”

“As you can tell, the arousal is already becoming intense, and will continue to grow worse until the user fulfills their desires and partakes of the more carnal pleasures.” Twilight narrated, pointing to the pegasus with an almost aloof air.

“T-this isn't cool Twilight!” Rainbow Dash shrieked, before stumbling slightly, her knees going weak as the sheer magnitude of her arousal nearly knocking her off her hooves.

“Be aware that this potion will only work on a willing participant, and unlike the others, cannot be mixed with anything else.” Twilight continued, ignoring her assistant as she turned her glare on the crowd. “Furthermore, this potion’s bottle has been reinforced with spells to render it inert if the drinker doesn't consent to it's drinking.”

“Holy fucking shit.” Rainbow Dash muttered, her eyes nearly rolling into the back of her head as her pussy spasmed and ejected another splash of marecum.

“The user will begin to produce an excessive amount of lubricant no matter the gender.” Twilight continued, pointing down to Rainbow Dash’s cock which was leaking a steady stream of pre from it's drooling tip.

“T-twilight, you have to fuck me Twilight.” Rainbow Dash whispered, the pegasus stumbling towards her girlfriend.

“In a moment, we have potions to demonstrate.” Twilight shot back before turning to the crowd once more. “Next we will witness the effects of the gender swap potion.”

Taking the potion into her grip, Twilight popped it's top and threw it back, the alicorn bracing herself for what came next. In seconds Twilight’s more feminine features vanished, and were replaced by the more chiseled and masculine appearance of an average male. Her breasts disappeared, her curves shrunk, but didn't go away entirely, and most notable of all was the way her jaw became slightly more prominent.

The sudden lack of breasts made her shirt look a little awkward, but a quick spell turned it into a garment more fitting of a male. “As you can tell the potion is quite effective, though like the futa spell it will not allow someone who was female to knock up someone who is currently female. Unless a second potion is purchased, and the intended female was born female, or has permanently had their gender changed. So no worries about messing around as the other gender fellas.” Twilight explained, leaning close and winking at the audience near the end, her voice having become as masculine as the rest of her.

The crowd chuckled with nervous excitement, a few stallion’s blushing and looking around nervously, hoping their friends didn't see them be intrigued by such a statement. This interest didn't extend only to males however, and more then a few females seemed intrigued by this, including a pair of mares near the side of the room who were looking at one another rather giddily.

“Now then I-” Twilight began, only to be cut off by Rainbow Dash, who grabbed her hand.

“I NEED you to fuck me!” She demanded.

“Rainbow Dash, just hold it for a few minutes, were almost done.” Twilight hissed.

“I don't have to pee, I need you to fuck me right godamn now.” Rainbow Dash replied harshly, her grip tightening.

“We only have two more just let me-” Twilight began, only to be cut off once again by a hasty Rainbow Dash who grabbed the next two potions and threw them both back.

“Now can you fuck me?” Rainbow Dash demanded, not noticing the effects of the potions she had drunk.

“Uh. One sec.” Twilight coughed into her hand before gesturing to Rainbow Dash. “As you can see the breast expansion spell has worked wonders, as well as the muscle expansion potion. Both potions only last a few hours, and the muscles are mostly for appearance, and only give a marginal increase to physical prowess.”

The crowd whistled and jeered, more than a few audience members turned on by the now enormously large breasts on Rainbow Dash as well as her even more well chiseled physique. Her tits which had already been beyond most pony’s wildest dreams of achieving were now so large that Rainbow Dash’s arms no longer reached all the way around them. Her only saving grace was the fact that her already well muscled physique had been further perfected, meaning she was able to keep such a weight without tipping over, though not by much.

Rainbow Dash bent over and began to dig around in the nearly empty box. “Where is it, I knew I saw one, aha!” Declared the pegasus as she hoisted a bright neon pink potion with the label X Stretch written across the front.

“Wait, Rainbow Dash we still need to tell them more about the potions, we can't just, oh come on.” Twilight groaned as she watched her girlfriend down the potion. “That was one of the aforementioned stretch potions, which has an adverse reaction of increasing the aphrodisiac potion if drunk in tandem.”

“Don't care, your fucking me right godamn now.” Rainbow Dash declared, the pegasus’ shirt somehow only giving out now and exploding everywhere, sending a shower of cotton over the closest members of the crowd.

Twilight groaned. “Rainbow Dash there are people here and I haven't even finished explaining everything- whoa.”

The alicorn reeled as Rainbow Dash bent over in front of her dick and began to line herself up, revealing her swollen and gaping hole. “Now, are you going to help me, or am I going to have to have to do all the work?” Rainbow Dash asked, while looking over her shoulder.

“I err…” Twilight shrugged and leaned to her left, looking past Rainbow Dash’s altered form. “Sorry folks, but I gotta do what the lady says, if you want to grab a free sample they are by the counter!”

Noone moved, the gathered crowd intent on watching the scene unfolding before them. Initially Twilight was a little irritated that they didn't leave, but the sudden tightness of Rainbow Dash’s pussy wrapping around her massively long tool made her forget such annoyance. With a shrug, the alicorn hefted her dick off the floor and helped the pegasus impale herself on it's length without Rainbow Dash having to nearly lay on the ground.

“Fuck yeah, it's about godamn time.” Rainbow Dash cursed, her face flush, and her body covered in a light sheen of sweat.

“Hold your horses, you know how tough this is.” Twilight replied before grunting in exertion.

“Yeah yeah, less talky, more fucky.” Rainbow Dash shot back.

With one last shrug, Twilight threw herself into the moment both literally, and figuratively, with her hips surging forward and burying an extra foot of dick into the mare. The result was a long, low moan from both parties, though Rainbow Dash’s pleasure was a little louder, and a little shriller when compared to the temporarily male’s. This was enough to startle the crowd into motion, though most seemed more intent on pairing off or joining groups after raiding the free sample box rather then leaving.

Not like Twilight or Rainbow Dash cared, as they were so utterly focused on the act of stuffing Twilight’s titanic dick into Rainbow Dash’s accepting cunt to even notice what the crowd was doing. An act that was made easier by magic, potions, and a surprising amount of experience, with Rainbow Dash and Twilight managing to stuff nearly half of the huge thing into the pegasus’ pussy in mere moments. That slowed down significantly though as at that point the dick was almost as long as Rainbow Dash was tall, presenting a unique problem to the couple, one they knew how to get around.

With a heave followed by a grunt, Twilight angled herself in such a way that Rainbow Dash was able to somehow bend the alicorn’s cock slightly. An act that should normally be both impossible, and incredibly painful but was somehow done with ease. The result was a rapid increase to the mare’s overall depth, giving Twilight the needed space to thrust forward and push even more of herself into the pegasus.

They both moaned aloud, Rainbow Dash now splitting her attention between her massive nipples, which she pinched and squeezed with both hands, and the act of stuffing more dick into her hole. Twilight would have normally followed suit, but she lacked any breasts at the moment, and had to simply enjoy the crushing depths of Rainbow Dash’s pussy without additional stimulation. Not like she was complaining as the mare’s hole was both tight, yet accommodating, flooding the alicorn’s system with pleasure.

“Holy crap.” One of the audience members muttered, the stallion pointing at Rainbow Dash with an aghast expression on his face.

By then the massive nearly a foot and a half wide dick had plowed all the way up Rainbow Dash’s body, making her torso bulge obscenely as it contained the massive endowment. Ribs, organs and other pesky things that would normally get in the way of such an act didn't seem to be a point of concern for the mare. Indeed Rainbow Dash didn't even display a single ounce of pain during the entire time she was getting stuffed full of dick, even when the bulge of Twilight’s head came to a rest just below Rainbow Dash’s collar bone.

Twilight sighed contentedly, her hips resting against Rainbow Dash’s wide, yet muscled hips. “Man do I ever love being inside you.” Muttered the alicorn, who gave Rainbow Dash’s ass a firm smack. “It feels like home.”

“And I love having more alicorn cock inside me then should be physically possible.” Rainbow Dash purred back, the pegasus continuing to tweak her huge nipples roughly.

“Slut.” Twilight growled, her hand grabbing Rainbow Dash’s tail and pulling it hard.

“Egghead.” Rainbow Dash shot back, her hips pulling forward as Twilight’s pulled back.

“Ego maniac.” Twilight replied, their hips slamming together at the same exact time.

“Well at least I don't have a tit fetish.” Rainbow Dash chuckled.

“Oh give it up already, you fucking love my tits.” Twilight bragged.

“Grr, shut up and fuck me.” Rainbow Dash groaned, her cheeks growing a little brighter after the comment.

“Yes ma’am.” Twilight replied dutifully, the alicorn snapping off a salute while snickering at her girlfriend’s blushing face.

With a hard buck of her hips, the alicorn rammed herself deep into Rainbow Dash’s pussy before pulling back out and doing it over and over again. Rainbow Dash knew well what to expect at this point, and was able to make Twilight’s thrusts feel even better by moving with the alicorn. When the temporary male pulled back she shifted forward, pulling as much dick out of her as possible before timing her counter thrust for the very second Twilight threw herself forward.

Their bodies clapped together, with the heavy slap of Rainbow Dash’s enormous ass somehow audible over the cacophony of pleasure that filled the small shop. Below them ponies fornicated en masse, with many having used the free samples and altered themselves before jumping into things. Noone was left out, and all manner of sexual debauchery played out before them, from the normal, to the completely obscene, nothing seemed to be off limits. The sheer arousal each pony felt being enough to dismantle the limits they would have normally placed upon themselves.

Twilight and Rainbow Dash didn't notice or care, as the pegasus was constantly looking over her back, the pair’s gaze locked on one another as they continued their debased dance. A dance that grew more and more involved until it felt like both pony’s entire bodies were being put into the act. Their experience ultimately being what allowed them to even do something like this, as the sheer size of Twilight’s tool would have made things impossible otherwise, even with Rainbow Dash’s added stretchiness.

As it stood now though, a watcher wouldn't have suspected they had sex any other way judging from how perfectly they matched one another despite their increased size and change anatomy. Twilight’s massive set of testicles would have been quite the weight, and a large obstruction to most but not to the alicorn, and the same went for Rainbow Dash’s truly mammoth tits. Neither pony even seemed to notice though, with the only thing on the mind of one another being the pleasure they felt.

They didn't need to switch positions, or do anything else, with the occasional touch, the constant fevered looks, and pounding thrusts being enough to put them both close to orgasm. As usual, Rainbow Dash was the fastest, and she threw back her head and let out a loud, deep moan. “I’m close Twilight!” She yelled.

Using her magic, Twilight pushed Rainbow Dash to the ground, making the pegasus rest on her titanic tits and giving the alicorn a better angle to drill her girlfriend’s pussy with renewed vigor. Something she did so with gusto, her thrusts accented with flaps of her wings, giving her that much more power and depth to each movement of her hips. “Cum for me Rainbow Dash, I want them to know how much you love my thick cock.” Twilight commanded.

Though the pegasus blushed, and felt a small sense of shame well in her chest, she couldn't deny just how much Twilight’s words had turned her on. Looking forward, Rainbow Dash let her gaze linger over the gathered ponies, her eyes flicking from one couple to the next. Quickly making her realize that few even cared to look up at her anymore, a fact that made her feel strangely okay with the alicorn’s demand.

Her pussy spasmed, her body twitched, and the pegasus felt her orgasm coming. “I love Twilight’s dick so much!” She shouted gleefully, the mare instantly feeling better about the words she said the second they passed her lips.

“Louder!” Twilight commanded as their hips met once more.

“I love Twilight Sparkle’s huge throbbing mare cock and I let her fuck me multiple times a day!” Rainbow Dash shouted, her lip quivering as her orgasm drew painfully close.

“More, tell them how you love my cum!” Twilight bellowed.

“I love feeling Twilight’s cum slosh around inside me!” Rainbow Dash began, her entire body tingling with anticipation. “I can't sleep without a load or two sitting inside my womb!”

That made Twilight’s eyes go wide, and her cock to twitch a second before she felt Rainbow Dash’s cunt clamp down around her length. “F-fuck!” She squealed, her body jerking to a stop the second their hips met, her own orgasm rushing out of nowhere.

The alicorn’s ginormous balls churned audibly, seed forced down the huge length with the speed of a cannon shot. Even then, it was slow enough that Rainbow Dash could feel the bulge of cum traverse the length of her body before exploding into her womb with all the force of a small explosion. This eruption of seed made her orgasm reach new heights, heights that were quickly surpassed when she felt Twilight’s body land on her back, and their lips met.

Their tongues danced, and their pleasure intertwined as orgasms blurred together. Rainbow Dash usually liked to count the pulses of Twilight’s cock, but today the pleasure she felt was so overwhelming that she didn't bother. Twilight on the other hand, usually liked to tease Rainbow Dash as much as possible while playing with the mare’s huge tits, but today she forgot that entirely. They had a new pleasure to explore, a new fetish to experience and both were reveling in the attention the crowd was giving them.

Slowly, their orgasms faded after what felt like forever, and when their eyes opened, Twilight’s balls had shrunk slightly, while Rainbow Dash’s body had bloated significantly. The pegasus was no longer laying on her tits but rather a veritable waterbed of seed that kept her body up and off the floor. So much seed had been pumped into the mare that the sound of churning cum was audible even over the noise that filled the small shop.

Noise that was quickly dying down, as everypony seemed to reach climax at about the same time. Leaving an entire room of exhausted, cum filled ponies panting and out of breath and with nothing better to do then look around as they recovered.

Seed covered just about everything, a few enhanced orgasms having been unleashed upon the walls, and even the ceiling in a few odd spots. The only space not marred by white was the small impromptu stage, though Twilight knew that would change the second she pulled out and unleashed a tidal wave of cum.

“So, what do you guys think?” Twilight asked with a smirk.

A few ponies clapped, a few hooted, and others simple held up a thumb, too conked out to manage anything more complicated than the simple gesture. One thing they had in common was the fact that no one seemed to have been disappointed by the spontaneous orgy and everypony in the crowd sported a large grin.

“I think they love it Twilight.” Rainbow Dash purred, the pegasus gently using her wings to pull the alicorn closer and allowing her to land a kiss on Twilight’s lips.

“And I love you.” Twilight purred.

Rainbow Dash’s face grew bright red, the pegasus reeling from the sudden admittance of love. The realization that the alicorn had never said it before now, suddenly occurring to the mare and leaving her so flustered that she couldn't even respond.

“You know usually ponies say something like ‘I love you too.’ or at least ‘I know.’” Twilight quipped, a small smirk on her face.

“I love you too you stupid dork!” Rainbow Dash stammered.

“Eh, good enough.” Twilight remarked with a shrug before leaning down and pulling her girlfriend in for another kiss.

Author's Note

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