Bad Science

by FruitTrifle

Rating: mature
Tags: Profanity, Main 6, Porn, My Little Pony: Friendship is Magic, Fetish, Rainbow Dash, Sex
Length: 2324

A science test goes awry

Rainbow Dash agrees to a test with an uncovered artifact, with uncovered powers...

Request from superfun

Content Warning: Bad science and testing, hypnosis, cumflation, futa transformation, ooc due to hypnosis, slightly dubious consent.

Published 2021-04-12 07:30:00 UTC
Last updated 2021-04-12 07:30:00 UTC

Rainbow Dash Loves Her Friends...Thoroughly

Rainbow Dash trotted into the test room, trying not to fangirl at how much being the first to use a long-lost artifact was like her hero, Daring Do, in...well, any of her books. She looked to the two way mirror, Twilight Sparkle looking back with a clipboard.

The artifact sat on a pedestal in the middle of the room, an odd looking thing-Dash had already made the joke it looked phallic, and Twilight declared that meant she volunteered to figure out what it did first. Twilight nodded to her, and Dash moved closer. She waited, as told, before shaking her head. She was encouraged to touch it, so she did, gently stroking a hoof down it.

She paused, before picking it up in her hooves, and sitting on her haunches to look it over. She ignored Twilight trying to get her attention, staring at the thing. It was phallic, most certainly. Dick shaped. She stared intently, it felt...warm, on her hooves. Almost...alive. She put it on the ground, and...

Twilight shrieked behind the window in horror, that was NOT part of this experiment! She dropped the clipboard, galloping into the room, her other confused friends following. She stopped up short, as Rainbow finished sitting on the artifact, now lodged deep in her pussy, moaning.

"Oh my," Fluttershy squeaked, the sentiment echoed, except for Applejack, "Hah! Knew you were a perv,"

Dash stood up, the artifact lodged deeply inside her. She turned to them, the pink of her irises now extended to the whites, giving them a pink glow. The thing in her throbbed, making her moan, dripping arousal down her thighs and legs. The other mares stared in confusion and wonder as the flesh between her teats began to bulge and warp, eventually leaving her with a sheath that a thick, equine cock slid free of.

Dash stared at Twilight, who looked back with worry, "Rainbow Dash, you...why did..." "I wanted to feel good," she said, voice off somehow. "You wanna feel good too, right egghead? You wanna let go, have some fun..." Somehow, Rainbow just...knew, the others would agree with her, even Twi and Flutters.

Twilight nodded slowly, her eyes tinting pink. She did want to feel good, have fun... Rainbow turned to the others, all of them pinking. "Whaddaya say, girls? We're all good friends, let's just...have a friendly snuggle," she grinned, her meaning obvious.

Fluttershy raised a hoof, blushing, "I've only been with animals and monsters, Rainbow Dash." "Ooooh, kinky! Let's dog pile the beastophile first!" Twilight nodded at the use of the long word, before the others surrounded Fluttershy, only Applejack muttering, "Why we doin' this? We don't do this..." Pinkie Pie giggled, bouncing, "Cuz it's a convenient plot line for fucking!" AJ just shook her head.

Rainbow mounted Fluttershy, thick futa cock slipping in the shy mare's juices dripping between her lips. Both of their wings were rigid, Rainbow nibbling her friends mane. She adjusted, and slipped in, the normally shy pegasus under her rolling her hips back into the thrusts as they fucked.

Dash hooked her hooves under Fluttershy, rubbing the buttery teats gently. Dash closed her eyes, with each thrust, the artifact lodged in her pussy throbbing and amplifying her pleasure. It gave a big throb, making her cum in Fluttershy with a whinny. Flutttershy whimpered, as cum literally poured within her. Her front legs gave out, her swelling stomach keeping her hind legs and pussy in the air.

Dash finally pulled out, cum blasting up Shy's back to her head. She turned her back to the comatose pony, addressing her friends. "So...who wants to be next?"

There was a pause, before Rarity stepped forward. "I do, darling. But, if I may be so crass...I want you to fuck me hard in the ass and bloat me like Fluttershy." Dash laughed, "Anal fetish huh? I'm cool with that,"

Rarity rolled onto her back, holding out her hooves for Dash, who wrapped her own fore hooves around the fashionista and kissed her deeply on the mouth. Her magic dong slid against Rarity's wet pussy, getting it good and lubed for the anal plundering about to begin. She turned Rarity's rear up, thick cock tip pressing against her tight ass hole.

"Get ready Rares, here I cum!" Rarity rolled her eyes at that, but was soon moaning as the slick cock pried up her tail hole, filling and stretching her. Dash began thrusting shallowly, letting her friend adjust to the massive intrusion. She needn't have bothered, Rarity had both hooves rubbing her own pussy, moaning in ecstasy.

Her insides clenched and rolled over Dash's thick, fat cock, practically sucking her back in with every pull out to thrust back in. It encouraged her magical girl cock, her own pussy gripping the faux phallus within her again, somehow it stayed in just the right position to put pressure on her own g spot.

She adjusted, sliding in right to the hilt of the marshmallow tail hole, holding it before beginning to thrust. It squelched, Dash's girl cock wet and sloppy from Flutters' girl cum and Dash's own awesome sauce. Rarity's own secretions splashed onto the cock from her enthusiastic masturbation.

Dash's thrusts became as sloppy as Rarity's tail hole, getting ready to blast right in the depths of the marshmallow to give her a creamy filling. She plowed deep, right to the hilt, cock throbbing as she cried out, blasting Rarity full. Rarity in turn came from her hooves and the feeling of cum swelling her- it absolutely poured within her, the magic cock not bound by biology or logic. Rarity's hooves moved to her stomach, stroking the steadily expanding expanse.

Finally, Dash popped out, a few last, fat spurts hitting Rarity's cunt and asshole. Rarity lay basking in the afterglow and cum as Flutters still was, and Dash turned to the others. She turned her glowing gaze on AJ, who, despite her originally misgivings, felt her usual attraction to the athlete sky rocket, and she had to fight to stay on her hooves from the intense feeling in her cunt.

"You want it, huh, AJ?" Dash purred, moving closer to the muscular work pony, stroking her from shoulders to flank with a wing. She mumbled, tail lifting in anticipation of being bred and filled with cum. Dash stopped the stroking, but kept her wing on the muscular back, waiting.

AJ shuddered, she wanted it to bad, to be bred and used like the cattle on her own farm. She knelt her forelegs, hind ones keeping her flank high in the air, tail curled over her back. Dash grinned, taking that tail in her mouth, before mounting up, thick cock laying between AJ's muscle cheeks.

She slid bag and forth, letting the sex fluids drool between her friend's cheeks, before moving back just enough to prod at AJ's wet, engorged pussy. AJ rolled her hips back, rubbing against the flared cockhead, encouraging her friend to rut her raw. Dash put just enough pressure to part her friend and rival's pussy lips around her magicock, pausing, both enjoying the heat rolling off that muscular fuck tunnel and teasing AJ.

AJ moaned desperately, rolling her hips and impaling herself on Dash's cock, moving back and forward ecstatically on her friend's cunt swab. Soon Dash joined her in the movements, squishing wetly with the sex juices of two other mares and two fat nuts. Dash thought it made it much more erotic, ridiculously hot, and unknown to her AJ agreed, her only regret- if it could be called that- was that she hadn't gone last and had all the juices of her friends inside her.

Dash let go of her tail, mounting properly, covering AJ and spreading her wings in a wingboner that had yet to quit since she sat on the artifact in the beginning. Her hips moved in a flurry, panting, AJ craning her neck to nuzzle her. "Plant one in me," she huffed, muscles rippling under sweaty fur, "Gimme your baby batter, let's make us a lil zap apple!" she groaned, pussy clenching and rippling along the length plundering her depths.

Dash seemed to agree, lifting her rival's rump into the air with her hooves, unleashing a flurry of thrusts only Equestria's fastest possibly could. AJ moaned, lost in pleasure, Dash slamming her cock through the other's cervix, right into her womb, filling her to the brim, drowning her ovaries and flooding her uterus, a massive spray back washing out of the penetration point. Dash pulled out, still hard as a rock and throbbing as she turned to the others.

Pinkie tackled her, the pair rolling head over hooves, ending with Dash on her back and Pinkie rubbing her well used party pussy against the shaft. "It's my turn, Dashie!" she declared, writhing excitedly, "Get it on in my foal factory, I wanna feel your spermies dripping down my legs! You've got one hell of a baby batter launcher, now show me heaven!"

Dash obliged, grabbing the sluts hips and feeling the muscles under her hooves flex as Pinkie bounced on her cock. "Yeah that's right, you little cumbucket, even you won't have had as much cream in you before as you will when I finish in that cock socket!" Pinkie giggled, encouraging it as she bounced. "That's right, this premier party pony prostitute has had a looooot of cream, but never as much as you gave our friends! I want a cream filling to rival my own cream buns!"

Dash redoubled her efforts, enjoying the dirty talk. "Awh yeah, gonna cream you so hard you'll look ready to birth already!" She was surprised she wasn't done yet-the stamina wasn't a surprise, but this cock just wanted to keep going, and the artifact throbbing in her pussy just seemed to increase her libido after every orgasm instead of allowing it to fall.

She thrust up as Pinkie slammed down, splashing the pink slut's juices all over the others who'd gathered to watch-those that weren't still fucked senseless, at least. Twilight licked her lips as she watched, anticipating her own furious rutting with the magicock. Pinkie noticed, a good friend that she was, and lifted her poofy tail so Twilight could have a better look at the massive cock stretching out her fun canal.

Rarity and AJ were watching out of the corner of their eyes, eating the others excess creampie. Fluttershy was senseless, still balanced on her bloated belly, apparently simply enjoying the feeling of being stuffed with cum. Twilight used her hoof to rub her pussy lips, panting, almost impatient for her own turn, watching Dash do all of her friends first making her hotter-she'd be railed with liquid friendship from them all on Dash's cock.

Just as the thought aroused her, Dash let out a cry, filling Pinkie's cum depository of a pussy, the party pony gripping Dash's hips with her thighs, doing her best to keep the cock deep and the cum inside. It made her balloon up more than any of the others, none of it escaping. Even when she finally, literally, rolled off, she had one hoof against her pussy to stop it from spilling.

Dash let out a happy sigh, getting up and looking to Twilight, who, now both aroused and under the artifacts influence, lifted her tail immediately. "Alright, egghead...your turn for this insatiable cock!" Twilight agreed, turning around, tail already flagged and pussy dripping and desperate for cock.

Dash nibbled at the royal pussy lips, teasing her at first. She nuzzled against the thick, swollen clit, letting the cunt honey drip down her face, enjoying it almost as much as Twilight did. She paused only to push Twilight gently to her belly, and then rolled her onto her back, hind legs splayed for an unobstructed view.

Dash rubbed her cock and sheath against the godly heat, noting with satisfaction and glee Twilight was still, somehow, a virgin. "Awh yeah, gonna be the first to pop this cherry, Twi..hope you're ready to go right from virgin to pregnant, cuz I ain't pulled out yet, and I don't plan to!"

"I don't want you to, I'd hold you in myself while you orgasm if you tried to pull out!" Twilight announced, to Dash's delight. "Then let's make us a royal rainbow!" she announced in turn, her hips a blur as she pounded the Alicorn into the floor, precum, femme cum, and old cum flung about from the intense pistoning of their hips.

Dash's cock took long, deep strokes within the soaked pussy, enjoying every inch of hot goddess puss. Twilight, in return, kept her hind legs wrapped around Dash's hips, hugging her with every bottomed out thrust. She moaned, gasping, lost in the influence of the artifact and her own, newly awakened sexuality. Dash moved to sit on her haunches, still thrusting, but now able to massage the teats pressing into her, tweaking them and looking forward to seeing them swell.

Twilight seemed to think the same, as she used her magic to grab hold of the artifact in Dash, only pulling it out enough to thrust it back in, hard and deep, the magicock it had made throbbing in pleasurable response. Twilight worked it harder and more excitedly as her own orgasm began in earnest, making her and Dash orgasm simultaneously.

Dash thrust deep, filling up that virgin, godly womb, bloating Twi as easily as she had the other girls-finally beginning to feel her libido slake. She actually filled Twilight much more than any of the others, orgasming even longer than usual, each sudden spike another outpouring of filling, fertile semen. Once she'd finished, and pulled out, letting some cum flow, and sat on her haunches and panted, looking very pleased and satisfied, as did her friends.

Dash looked over casually, asking, "So Twi...when does Celestia come back from her trip again?" as her pink eyes twinkled.