BIO 3

by darf

Rating: mature
Tags: Profanity, Violence, Sex, Twilight Sparkle, Gore, Anon, My Little Pony: Friendship is Magic, Dark, Death, Human, Porn, Second Person, Fetish
Length: 2726

Twilight Sparkle uses her magic to manipulate Anon's organs internally... WITH SEXY RESULTS?

When Anonymous and Twilight Sparkle are alone, they come up with all kinds of weird fetishy stuff to try together.

Like using Twilight's magic to manipulate your organs from the inside while she bounces up and down on your cock.

Sounds fun, right?

Maybe.

Content Warning: Anonymous, second person, weird semi-guro stuff, potential BAD END

Dedicated to Uziga Waita and Shintaro Kago. Oh, sure, why not Junji Ito too. Enjoy losing a chunk of your sanity meter if you dig into any of those wormholes yourself. Or maybe we should say 'spirals'.

Also with huge thanks to the members of our Patreon, with shout-outs at the end of the story. If you'd like to support us in writing pone-fiction, please give a click.

Published 2020-04-21 23:10:02 UTC
Last updated 2020-04-21 23:10:02 UTC

Gnash your teeth like a flamingo swarm

"Hey, Anon. Do you wanna try that thing today?"

You're lying in bed with Twilight Sparkle, all floof and purple princess over the side of the bed. She's lounged out like a cat on the sofa, kicking her hind-legs idly, eyeing you from less than a foot away. You can see her squishy, lilac butt from this vantage point very nicely.

"Yeah," you say. You turn over on the bed so you're lying on your back, propped up on your elbows behind you. You put away the Pony Penthouse Monthly you were reading in the desk drawer.

Twilight is turned around too, and smiling at you.

"Shall I do the opening honors?" she says, grinning with a wink.

"By all means," you say.

Twilight's horn glows, and you feel your clothes being lifted off by magic force. Shirt over your head, pants unzipped and buttoned and dragged off your legs, thrown into the laundry bin in the corner of the bedroom. Underwear follow, until you're totally naked.

Twilight giggles when she sees you're already half-hard.

"What?" you say. "I've wanted to do this for a while."

"Lay down then," she says. From underneath the bed, she levitates out a pair of sciencey-looking goggles, and straps them on her head over her eyes. They're not necessary, but it does add to the experimental illusion all the same.

"Arms up, behind your head," she says, prodding one of your arms with her hoof.

You move as instructed, stretched out from end to end on the human-sized bed also fit for a pony.

Twilight hops up onto you, mounting your stomach and pressing the cheeks of her butt into your erect cock. She wiggles from side to side, slapping your dick back and forth between her cheeks and getting a glob of precum stuck in her fur. She giggles and prods the spot on her lower back with her hoof, then brings it to her mouth and licks the tiny bit of clear fluid from it with her long, extended tongue. She licks her lips afterwards, gives a satisfied-sounding moan, and smiles devilishly at you.

"Ready?" she asks.

You nod.

"As ready as I'll ever be."

Twilight lifts her butt up and hovers just above the head of your cock, swaying back and forth and dripping little droplets of her mare-juice onto your head and shaft. The heat and wetness are palpable from inches away, then centimeters, then you can feel her lips touch the tip of your cock and begin to slide over it, letting it in and squeezing the whole way down, until you're buried in her cunt, and she's planted firmly on your crotch and moaning and clenching you with her pussy, and this is only step one, keep in mind.

"Fuck that feels good," you say, almost involuntarily. Twilight bobs up and down a little on your dick, just an inch or two, rocking back and forth and making soft slapping noises when her butt bounces.

"Ready for the next bit?" Twilight says. Her face is flushed, and her goggles are beginning to fog from the inside. She takes them off and wipes either side with her hoof, but a few patches of smog and sweat still remain.

You nod. You're not sure you can say you'll ever be ready for something like this. But a nod is doable.

Twilight nods back at you. She lowers her eyebrows and begins to concentrate, clenching harder around your cock as her body seizes with focus. Your cock twitches inside her, and you watch as her horn begins to glow, brighter and brighter, until the translucent purple has bled into an almost pure white light, so overwhelming you have to turn your head and look away before the final flash happens, and the whole room lights up and then goes dim, back to the single lamp-light overhead, and Twilight's horn back to a dim, lilac glow.

"There," she says, panting slightly. "I should be able to do it now."

The tip of her horn shines, and you feel it. Like a hand inside you, gripping from a place poked between dimensions. You feel it reach up through your ass and grab your prostate from the inside, and squeeze it like a tiny, pent-up walnut full of delicious juice—which is technically what it is, anyway. Having it squeezed directly feels like being punched in the dick through your ass, but in a good way, and if that isn't a miracle of description in some capacity we don't know what is. It feels like an assgasm starting in your entire body. And you really have to think about 'assgasm'.

Words come out of your mouth, but you don't recognize or remember them. It takes a few seconds for you to remember how to navigate the remainder of your body while your walnut's being squeezed in a magical vice-grip. And while the pony on your cock is still rocking herself back and forth on your shaft and squeezing you there too. Something like 'Fuck me, that feels...' and then nothing besides incoherent mumbling and groans.

From her observation post on your cock, Twilight seems to take your enthusiastic response as a good sign. Her horn glows brighter, and she starts moving in earnest on your cock, pulling herself up at least half the length and then slamming her butt back down onto your pelvis, the 'smack' sound getting louder, along with Twilight's panting and moans.

And the incomprehensible primal groan coming permanently from your chest through your mouth.

Twilight giggles as your cock twitches rapidly in her pussy.

"Don't cum yet," she says, and runs a hoof over your chest. "We're just getting started."

"Unnhnnnggh...." is a rough approximation of your response. Something intended to be 'go softer' but translated as 'oh fuck i'm gonna cum so hard i die'. And then spat out through a human mouth. Twilight's grip on your prostate finally loosens slightly, but as soon as it does, you can feel another invisible, inside hand begin to wander on its own.

This one travels up the shaft of your cock, and when it travels, you can feel it from the inside out, each time it passes a nerve ending, tickling it and lighting it on fire before moving on. The throbbing sensation coming from your ass through to your dick is dulled, but now the new hand is moving up, inside your stomach and into your chest... you can feel the fingers around your rib-cage, poking and tingle in a way only living through it can allow you to understand, and then you feel the final placement, the slimy tracing of the fingers around the outside of your still-beating heart. Inside your body, Twilight has a hand around your heart.

"I'm gonna squeeze it," she says, and grinds her pussy hard down on your cock.
"Are you ready?"

"Hnnn," is all you manage, and meek thrust upwards to give your cock just a little extra poke into the outside of Twilight's womb.

"Ahh! Mmmhm, that's really good... let's do me next time, so I can feel you squeezing my womb from the inside."

You nod and tap Twilight on the leg with an insistent pace. You're not going to work up the courage to do this again any time soon.

"Right," she says. "Here we go..."

When Twilight's hand tightens around your heart, each of your senses screams in overdrive. You become able to smell and hear everything instantly, then lose the ability the next instant, replaced only with white hot flashes and screaming from the dark, inside place of every pore: help. stop. get us out. anything. please / let / it / stop.

"I'm gonna cum," Twilight says. "I'm gonna cum on your dick."

Squeeze. Lungs no longer in cooperation. Air portioned and rationed long ago. Drowning in a pool of oil. Drowning in a lake of salt. Drowning in thin air, above the mountains, underneath a thousand oceans. Choking, sputtering, head seizing and veins throbbing to explode.

Twilight's hand, clutching your heart, squeezing it tighter with each pulse, bruising the veins with each beat. Each tap on the side of a giant glass window. Tap. Tap... tap...

[GOOD END] [BAD END]

Author's Note

Big thanks to our patrons: Sorden, Jake, infernap12, David Griffin, and carcinoGeneticist, for their ongoing support. Also huge thanks to our commissioners for allowing us to continue living and writing for so long. <3

[BAD END]

You can feel it coming. The final breath. The final flash of white. The final gasp of air.

You tap three times on Twilight's leg with the last strength you can muster. The safety signal.

But the clench goes on. Twilight's eyes are closed, her hooves are roaming frantically across her own body, rubbing her chest and occasionally darting down to slap hungrily at her clit. She either didn't feel the taps, or felt them and didn't stop.

You barely have the strength to raise your hand again. But you manage the first tap. You manage the second. Your vision is blurring into black as your hand falls for the third time...

"Oh!" Twilight says. She stops bucking her hips up and down, but continues to rock back and forth gently, grinding the head of your cock up against her womb. "Sorry," she says. "I almost didn't notice."

Your heart can beat unrestricted again. Your brain comes back to life, one molecule of oxygen at a time.

Twilight's pussy is pouring juices over your dick and balls, soaking the bed as well. Her eyes look delirious, and her hooves are back to work on her chest and clit again.

"Can we do the one we talked about? Please?" She looks at you with pleading eyes and a clenched pussy.

You groan, only half-aware you're even still awake. Twilight's words are rattled through your skull, pierced with a constant ringing so you can't even pull the letters apart... but you know the tone, and you can tell a 'please', and there's nothing you want more in the world than to make Twilight happy... so you nod, even if you're not sure for what, and the look on Twilight's face, though you can barely see it through the blinking stars and blurred edges, is all the reward you could ever ask for.

"Yes," she says, and gives you and extra hard bounce of her butt, slamming it down onto your cock and soliciting another confused but happy-sounding groan. "Yes, fuck, I wanted to do this so much... thank you, thank you thank you thank you so, so much..."

You nod again. There were definitely words in there. Happy Twilight. Everything was a-ok.

Then you feel the hand inside your skull.

You feel the finger, poking your right and left eyeballs from the back.

You feel the simulacrum of human digits rifling through the bundles of nerves like tangled headphone wires, yanking them apart and looping them together. Each pull sends a lightning jolt somewhere else, blots out a different section of the body before jerking it back covered in kerosene and lit ablaze.

Twilight's tongue hangs out of her mouth, she starts slobbering like a demented filly in estrus, her pussy a mess of mare-juice, dripping and sloshing all over your cock.

"Yeth," she says, her voice high-pitched, oblivious. "I love thex tho much... I wanna make your brain have an orgathm!"

The fingers are around every side of the squishy grey mass. They're squeezing, and all of the pieces of memory and open awareness of smooshing into a pile. A ball of hotel soap being rolled up over and over again. So small you could make it a molecule. Poking through pieces of paper, water raining on your high school year-book.

Your tongue hangs out of your mouth too. Your heart only remembers to beat half the time. Your limbs start counting the seconds left for the muscles to know how to respond.

"Uggghnnhth..." is the sound that comes out of your mouth.

Twilight's hand squeezes down around your brain like she's using a stress-ball. Her pussy clenches around your cock like a velvet vice as her pussy squirts mare-juice all over your crotch and chest.

"Fuuuuck, I'm cuuuuumming," Twilight says, rocking her head back and forth deliriously. "I'm cumming, I'm cumming so good, I'm squishing up your little human brain like a stale peanut, fuuuck..."

A light blinks on in the back of your head. On, then off. Off. Then on. Then on. Then off again.

When it blinks on for the third time, you close your eyes.

Your brain explodes out of your skull, squirting through your eye-sockets, ears, nose, and mouth like the insides of a marshmallow peep when you smoosh it. Or that guy from that one movie with Arnold Schwarzenegger on the planet Mars. That was a scary movie.

When Twilight comes down from her orgasm, she throws your body into the dumpster and uses a convenient magical spell to clean the room while she goes downstairs and makes herself a delicious BLT sandwich for lunch. And it tastes really good.

BAD END

Author's Note

When I was a kid playing Final Fantasy VII, another friend and I used to speculate on the effects that the 'Bio' spell physically had on opponents or monsters. Our combined theory was that the highest level would rearrange your internal organs, which was the most messed-up sounding thing I could think of at the time. It still sounds pretty messed up today, and I've always wanted to write a story based around that premise somehow. The kind of fetishes you accumulate growing up in the post-internet era are a little out there sometimes, I guess.

Have a blessed day~

[GOOD END]

You can feel it coming. The final breath. The final flash of white. The final gasp of air.

You tap three times on Twilight's leg with the last strength you can muster. The safety signal.

Twilight squeals and clenches around your cock as she releases the hold on your heart and switches back to the walnut in your butt, squishing and pressing it like a diamond under the earth's natural compression.

A sharp jolt the size of your entire body makes your hips jerk up and hold in the air. Twilight's bouncing and bobbing on your cock as she squirts mare-cum everywhere, and your hips keep her held up in that make-shift yoga position as your balls begin to squeeze every last drop of cum out from your insides and then some. If you have pipes, they're not only clean, but pressure-washed, shot through with a thousand reservoirs' worth of water in a hole the size of a peanut. Your dick feels like it's going to explode because of the velocity and viscosity of the semen surging up your shaft and exploding into Twilight's pussy. It's so thick, so creamy, it drips down your dick looking like melted ice cream, mixing with the purple of Twilight's fur and pooling underneath her cunt on your stomach and balls. Your balls, which are still tight, seizing, refusing to let go as long as Twilight keeps her hold on your prostate and squeezes it relentlessly.

Three more taps, and she lets go of that too. Your body feels like it's been built up out of Lego, broken apart, and then repaired with scotch tape. You have to limply bat at Twilight's shoulder with your other hand a few times before she comes down and opens her eyes, then picks herself up your cock and lays down beside you. Your cock is still so hard you could cut glass with it, but even the idea of touching it makes your body seize with over-stimulation. You don't even let it touch the blanket, and lay down on your back, making sure to keep Twilight's hooves away from your member as she lays them over your chest.

The glow on Twilight's horn finally subsides, and with one last sparkle, she flicks the bedroom light off, bathing the two of you in darkness and the smell of each other's sex.

"We have to do that again," Twilight says.

"Thank goodness for safety signals," you say.

Twilight nods.

"You said it," she says, and kisses you.

GOOD END