My Beautiful Dark Twisted Fantasy

by greydoran

Rating: mature
Tags: Random, Main 6, Gore, My Little Pony: Friendship is Magic, Dark, Other, Sex
Length: 3960

A magical treadmill causes extreme fetish trouble in Ponyville.

This might be the worst thing I've ever written. Reread Fattyville or something, just steer clear of this mess.

Twilight Sparkle, perfect pony princess, has decided to get fit. She's been hearing about this great new invention, the 'treadmill', and decided to give it a try. A series of strange events follows.

Contains: Weight gain, farting, scat, transformation, mind rape, lactation, and anything else that pops into my head.
No relation to the Kanye West album.

Published 2015-02-09 18:20:02 UTC
Last updated 2017-05-14 23:14:53 UTC

Chapter 3

Fluttershy was so terribly confused! Twilight had put on weight, and decided to go to the bathroom on the floor… Lightning Dust was so big she couldn't fly if she wanted… Applejack had sent her to get some help bucking the last apples of the season, she hadn't expected this…

*braaaap!*

The blast of warm air caused Fluttershy to fall back on her haunches. It wasn't a very strong blast, or even particularly smelly, but there was something about it… Fluttershy sniffed deeply, not realizing what she was doing. She didn't know that the same magic that affected her two friends was contained in every expulsion

Her whole body started to ache, like that time she and the girls helped Applejack buck apples. 'Oh, that was a lot of exercise,' she thought as her belly began to quiver. Lightning Dust's powerful burp not only increased a pony's weight, but, like herself, caused mind and body to become intertwined, if only for a moment. Like with Twilight, Lightning's memories of flight and athleticism invaded Fluttershy's head. Fat piled onto her frame, yes, but muscle built up over years of hard work layered on top, causing her body to seem soft, yet firm. She gained an extra foot of height, making her the tallest of her friends, and deep inside, her metabolism speed up enough to maintain her strong-fat form.

Her mind changed as well. Shyness was incompatible with loud, boisterous Lightning Dust, and her mind settled on proud confidence in herself. After all, she was a pegasus who could buck like an earth pony! Now she remembered, she needed to help Applejack buck apples! She bid adieu to her friends and hurried out, hoping there would be snacks waiting at Sweet Apple Acres.

Fluttershy walked off, mares and stallions alike staring at her firm, round plot. The confident mare let off a loud fart in their direction, ignoring the moans and shrieks as the ponies behind her began to change. She was strong…

Flutterstrong!

Chapter 4

Flutterstrong trotted on, savoring the foul air she spread as she went. Behind her, a mare cried out as her physique rebelled against her. Above, a pegasus began to swell not with fat, but with gas, and screamed in pain and panic as a fart propelled him further from the ground.

She noticed none of this, of course, living happily in her own little world of flatulence and muscle. Even when the wind changed and gas was propelled onto the fleeing ponies in front of her, she paid them no mind. For she was Flutterstrong, and a little pony turning into an immobile ball of flab was normal in her magic-addled mind.

Applejack was used to strange events. She lived in Ponyville, after all, and with her position as the element of honesty, she was usually at the center of them. But when Fluttershy walked through the gate to Sweet Apple Acres, even she had to double take. Here was her friend, tiny, pathetic little Fluttershy, jiggling with fat yet clearly stronger than most stallions she knew!

"Fluttershy? Th' hay happened t' you?" She asked, incredulous at her friend's size, "Twi cast some sort o' strength spell on ya?"
Flutterstrong didn't reply; Applejack was talking nonsense to her, and she responded in the only way she knew how. By burping.

Once again, magic began to take place, invading Applejack's every pore and causing her insides to churn painfully. She groaned and placed a hoof on her belly as it began to swell like so many others had done. She couldn't even utter a word as her entire body began to tingle. Her fur and mane began to grow longer and more unkempt, and black spots formed across her bloating body. She moaned as her breasts began to gurgle, suddenly seeming fuller than ever before. They quivered and shook as they began to bloat outwards, pressing tightly between her thighs. No matter how wide she opened her legs, her tits were just too big!

With a yelp, fell backwards onto Fluttershy, the muscular pegasus quivering, but ultimately collapsing beneath her heavy friend. Applejack's hips felt on fire as they stretched out, giving her a backside perfect for bearing foals. Her hooves cracked and snapped as they became cloven. She could barely think as she pressed a hoof against her swelling crotchtits. Another moan escaped her lips, this time sounding a lot deeper, with a clear -oo sound at the end.

The next time, it was definitely a moo. Milk began to drip from AJ's breasts, and she swished her tail in pleasure at the relief. Down below, Flutterstrong could barely comprehend what was happening. Since when was Applejack a cow? And more importantly, since when was she, the strongest of her friends, pressed into her blubbery buttcheeks? Applejack farted, letting off a satisfied moo, and Flutterstrong began to feel woozy, both from the lack of oxygen and the swirling magic of Applejack's fart. She wasn't a seat, was she? Sure she was. Flutterstrong's short existence ended, and in her place was a new pony.

Flutterseat!

Intermission: Thunderthighs

A black pegasus looked over the porch of his cloudhouse at the chaos in the town below. A mare was dragging enormous, mattress-sized breasts behind her, followed closely by a pair of dragons trying to latch onto her nipples.

"I sure am glad I'm not out there," Thunderlane said, happily tempting fate. He was sure whatever was happening would soon be fixed by Princess Twilight, and if not, he had a stocked pantry and enough survival gear to last through any disaster. His brother was fast asleep in his bedroom. 'Might be trouble when he wakes up,' he thought, knowing how he'd worry about his friends.

"Thunderlaaane!"

He recognized the voice and turned, seeing two ponies flying towards him.

Flitter and Cloudchaser. He used to date them, well, one of them, then the other, then both… Threesomes are awkward, they decided, and broke off amiably. Now here they were, wings beating irregularly, eyes open wide, with a peculiar smell hanging about them...

"Thunderlaaane!" They cried, "We neeeeed you!"

Thunderlane immediately turned around, realizing they were being affected by whatever was going on, and began to bolt inside, only to be thrown to the ground as the two mares glomped his perfectly toned backside.

He struggled to get up, but the two seemed to be stuck fast. Their hooves massaged his ass, and he had to admit it felt pretty good… Turning his head, he gasped at what he saw. The light grey mares had begun to darken, turning to his own dark shade. They also seemed rounder, plumper… Their features were shrinking and melting together!

He tried to scream, but nothing would come out. He could barely think straight, and the mares-cum-ass weren't helping as their thoughts flooded his mind. Unlike the other victims, he was invaded by the full consciousness of two ponies at once, and even a great mind, which he most certainly was not, would have trouble fighting off this assault.

The twins' desires overwrote his own hobbies. Weightlifting was replaced by cardio, cloudbusting by sculpting, and the love of beautiful girls with a burning desire for a big, strong stallion to ride him like there was no tomorrow.

Thunderlane stood up shakily, hooves unused to the massive weight of his backside. Between his legs, his turgid manhood throbbed. He needed a colt, now!

"Big bro?! What the hay happened?!"

Author's Note

I just realized that I'm probably going to lose a lot of followers for this. Let me just make clear that this story does not reflect any possible future continuations of Golden, Princess Blubberbutt, or Fattyville, nor, most likely, any other future writings. I just had some sick shit I needed to get out.

Chapter 5

When Rarity started to sweat, she turned on the air conditioner. When her stomach started to bloat, she took some gas pills. But now, monstrously obese, transparent, and apparently made of some sort of pony-shaped pile of goo, she couldn't think of any solutions. The only pony she knew who could help was Twilight, and she lived all the way across town!

Rarity slicked the jelloy blob that was her mane and made a sound vaguely similar to a sigh made underwater. She had to get her friend, it was the only way to fix this. Being a unicorn, her mind wasn't as easily affected as earth ponies and pegasi, so she still had a vague sense of how the world should be. As she oozed through town, passing bizarre and perverted displays of mutated ponies, she began to realize just how odd this entire day really was.

"Twrbgglbt?" Gurgled the slime pony as she oozed under the door. She looked around, only to see the bloated, living corpse of her friend on the floor. "Trrgt!" She gaked as she moved as quickly as possible toward her, only to run across something brown, chunky, and... Delicious. Rarity's body was essentially one giant orifice at this point, and the shit was absorbed almost instantly. It took a moment for her to realize what had happened, but in a moment she didn't care. The feeling of adding to her momentous body was simply too much!

Suddenly, she had an urgent desire for more. More slimy, disgusting diarrhea for more slimy, disgusting Rarity! She oozed across the floor, cleaning it spotless as she went, until she found the source. Twilight's anal ring was as thick as a pony's hoof, and could probably fit one or two inside it, making it no problem for the obese goohorse.

Twilight's body stretched to make room, but even the treadmill's curse had limits, and soon, even as the last of Rarity's slime was sucked in through her gaping anus, Twilight's impossibly obese form was covered in burning red stretch marks and areas where the skin was almost tearing, but just barely hanging on. Her bones were tightly compressed, and broken in some areas, but her organs continued functioning, barely, constantly threatening to fail, which several nonessential ones already had, despite the immense pressure of goo baring down on them. They were lucky that Twilight couldn't comprehend pain, and Rarity's body made it impossible to feel it.

Deep inside Twilight's head, two sides were struggling for control. Rarity's mind was trying desperately to merge with the empty brain, but the magic still affecting it wanted to fight her off. Just when it seemed like Rarity would have to vacate this body, a faint glimmer of Twilight bubbled to the surface of her mind. The brain also had some suppressed recollection of Twilight, and the two bonded as quickly as possible, utterly crushing the magic that destroyed Twilight's mind and body. Rarity's personality merged with them freely, and her body managed to heal Twilight's body to a healthy level, at least for a 1000 pound blob of a pony.

"I simply must find a solution for this... This... Travesty!" Shrieked Raritwi. "Who was that stallion, and why would he do this?"

Author's Note

Just so y'all know, these are all basically rough drafts. No editing, no nothing, completely glossing over things that would otherwise be multiple paragraphs long. It's unlikely that I'll ever bother expanding this whole thing into a proper story, but apparently 12 people like reading my shitty chapter drafts, so...

Chapter 6

Raritwi wracked her brains for ideas. Who would be twisted enough to do this? Sombra? Too uncreative. Tirek? He'd want slaves, not twisted sex creatures. Suddenly, she realized who it was.

"Discord!" She shouted.

"Speak of the Discord and he will appear!"

Raritwi leapt several inches off the ground in shock, wings beating uselessly. Discord stood in the center of the library, an innocent shit-eating smile spread across his twisted features. Slowly, the grin melted away, leaving a grey puddle on the floor, and replaced with a look of utter confusion.

"Princes... Her... Rarity... What the-" He was cut off as Raritwi zapped him with her horn. "What is this?!"

"Just a shrinking spell, dear. I'm afraid I know all about your little game, and I'm giving you one chance to fix it before I use you to fix it myself," She gave him a dead serious glare, "And I will USE YOU, make no mistake."

Discord groaned and clutched his gut as he shrunk several inches. "What? Does the fatty want a fat friend?" He chuckled, feeling his claws sink into his slowly bloating belly.

"No, no, that's just your waste. I do hope you haven't eaten much today, because you're about to expel it all at once, and Spike just cleaned this floor yesterday!" Raritwi glanced at the drying pool of shit near the ruined treadmill, "Actually, go stand over there. I've no idea whether you'll burst, but I shan't allow you to further sully my #1 assistant's hard work!"

Even as she levitated Discord's shrinking, rounding body over to her own mess, his anus began to slide open. Discord grimaced, obviously not wanting to debase himself. Suddenly, after losing another foot of height and gaining another around the middle, he bent over and screamed. A slurry of neon pink and orange shit spewed out, along with two intact rolls of toilet paper.

Raritwi's horn lit up again, sealing his anus shut. "Now, now, I'll be needing samples if I'm to cure this," she said, summoning a number of buckets and sample trays, as well as a jar. With a simple spell, she separated his expulsions by color and texture, along with the blood beginning to leak from his ears. Perhaps she should've prepared more beforehand.

"P-pweesss!" Discord shouted, distorted by the rush of air flowing from his lungs, "I dii'n do i*uurrp!"

He was cut off by a burp, the first of many as his lungs struggled to expel excess air. He couldn't scream as his insides, at long last, began to rip open and flood his body with filth that simply couldn't fit his decreasing size. His arms and legs bloated, his cheeks became overfull as shitty vomit spewed forth from his mouth like a firehose.

Blood and bile leaked from every orifice. What few alien organs inside him that still worked, shut off one at a time. Finally, his body could take it no longer, and with a cartoon explosion, he burst. The top of the jar popped off from the sheer force, spraying the walls and ceiling with multicolored filth. Bits and pieces of his crushed skeleton shot out like bullets and embedded themselves in the walls around the room, but Raritwi paid it no attention, even as the window behind her shattered.

"Eugh," She gagged, "Spike! Where are you?!"

Author's Note

I wanted to write about a shit explosion, and Discord was never my favorite character, so...

Chapter 7

High above, Backfire, Captain of the Wonderblimps, was farting her way through the air towards Ponyville. Her mission was simple: Find Lightning Dust, and offer her a new position at the Academy. The obese pegasus had caused her share of problems, but her superiors saw potential in the brash blob, so they dispatched the very gasbag that expelled her to bring her back.

This wasn't her original plan, of course, but when she hit an unexpected, foul-smelling headwind, she found that her orders didn't make much sense. After all, who is Rainbow Dash, and why would they need a personal invitation to the next show? And who are the Wonderbolts, anyhow? The Wonderblimps are the biggest, gassiest pegasi in Equestria, and anypony who disagrees can suck their farts!

As she gazed below, she saw the library where she knew Lightning's friend Raritwi lived. Surely she could help locate her! But just as she began her descent, angling herself so her farts would propel her downwards, a window was blown out! She tried to burp herself backwards, but a small, white object was flying towards her at enormous speed which she couldn't hope to counter!

Suddenly, she felt a prick in her side. Her eyes opened wide in shock as her insides were penetrated by something small and hard, thoughts racing in panic before... Kaboom. In an instant, her body was blown to pieces. Her uniform was torn to ribbons, wrapped around shattered bones as they crashed to the ground with the rest of her body.

Chunks of flesh rained down on the ponies below, sending their orgies into overtime as they greedily cannibalized the former flyer. The chaos magic that permeated her remains was quickly absorbed by the depraved beasts, causing yet more changes in them...

"Wh-what the fuck! What the fuck is this?!" Screamed a stallion with a ten foot cock, while a nearby mare gasped at the sight of her enormous, basketball-sized anus, and the two almost spherical fillies greedily eating everything expelled from it.

All across Ponyville, the lust-filled fog lifted from the minds of its inhabitants, causing panic and horror at the changes wrought upon them. Even those who didn't eat Spitfire's remains were affected as the partially cured windbags farted and the hyper-endowed came all over them, feeling no pleasure as they discovered their new, alien forms.

At Sweet Apple Acres, Fluttershy shrieked in horror as she discovered herself drinking milk from her friend's swollen udders. Rainbow Dash stared blankly into a puddle of her own urine, her mind refusing to acknowledge what she looked like. Rarity and Twilight fought their way along haphazardly, each trying to do something different with their shared body. And in the basement of Sugarcube Corner, a perfectly normal pink pony sat on a swivel chair, trying her hardest to look sinister.

Author's Note

Might be another chapter after this. I'unno.

Chapter 8 - The real deal this time

Sugarcube Corner's dark basement

"You see, Mrs. Cake?" Pinkie said, tapping her hooves together, "This town is diseased. Ponies trotting about, wasting away their days with friendship, eating ungodly amounts of sugary foods while consuming an endless supply of media drivel... This is what they deserve."

"B-but Pinkie!" Cup Cake cried from her cage suspended from the ceiling, "They're just ponies! You can't judge them from what they eat, or what they watch on TV!"

"Oh, can't I?" Pinkie cackled. She pressed a button on her desk, and a dozen screens behind her came to life, "As you can see, THIS is what happens when you loosen the restraints! THIS is what happens when the bottomfeeders are allowed to do as they wish!"

"You're insane! What about the... The transformations! The growth, and the mutations?"

"It was all in their minds already. I gave them their disgusting dreams, I stripped away the boundaries, and this is their true form!"

"So why give them their minds back? Why not keep them trapped in lust for the rest of their lives?"

"I didn't give all of them back. Carrot!"

With a mechanical grind, a section of the wall opposite Pinkie slid away, revealing a darkened room. For a moment, everything was silent, then... STOMP. Something was in there. Something big. Cup Cake waited with bated breath as the sound grew closer, and closer... She couldn't wait for... Whatever this was... And whatever it might do to her...

Finally, the monster stepped out and into the light. Cup Cake gasped, "Carrot?!"

Her husband was 7 feet tall, more muscular than Hercules, and bore a penis at least three times his usual size. He snorted lustfully at the sight of his wife. Deep in his enchanted brain, he recognized her as his mate. His dick twitched at the thought.

"Yes, Mrs. Cake. You see, I'm not just planning the end of ponykind, I'm planning for its rebirth. And you," She pointed at the caged mare, "Are going to be it's mother!"
Carrot neighed dumbly. His wife gulped.

Chapter 1

"Guhh…" Twilight moaned. The salespony she bought this treadmill from said it was enchanted to make her body perfect, but at this point she was pretty sure that was a lie. Better go find them sometime. What was their name again?

Twilight was at a loss. How could she forget? She only bought this thing two days ago! Was it-

She couldn't think, because at that moment, her stomach churned painfully, and she let out a massive burp. "Bwa?" She muttered stupidly. She didn't notice her belly bloating up again, this time pressing against the edges of the treadmill. Yes, it was enchanted. Her mind had leaked down to her stomach and was being expelled with every burp and fart that exited her growing body. Her memories, her friends, family, everything she ever learned, was being blasted out of this pony foghorn. By the time she realized what was happening, it was too late.

"N-nuh, gotta find help! G-gotta get offa dis ting-" She cried inarticulately as she tried to waddle backwards, but her body was already wedged so tightly between the rails that the only way she would be getting off was by bursting through.

A brown trickle began between Twilight's legs, then it expanded to a stream, then, with a deafening fart, chunks of diarrhea flew from between her flabby ass cheeks and splashed across the bookshelf behind her. Priceless books were now covered in hot, slimy princess shit. With it, all remaining signs of the pony who once inhabited this body were gone. With a *snap*, the railings gave way to its growing flab, and the mindless body fell to its side. With no control over itself, a yellow puddle formed beneath her backside, mixed with logs of shit and more diarrhea. Princess Twilight was no more.

Outside, Rainbow Dash knocked on the door to the library.

Chapter 2

It had finally happened! Rainbow Dash was accepted to the Wonderbolts' main flight team! She was so excited, she had to tell all her friends, she had to tell Twilight-

She stared in horror at the obese body that lay in a pool of its own filth. Rainbow recoiled as she stench hit her nose.
"What-No! Twi! Gotta… Get… Help…" Rainbow's movements became slower, clumsier as her mind relinquished control of her body.

"Oh Celestia, I don't feel so good…"

Rainbow screamed internally as she lunged at the brainless ball of flab that was her friend. She splashed down face first in a puddle of liquid shit, and couldn't help but taste a little that landed on her tongue. It was... Weirdly good...

Her mind was torn apart as she gulped down the brown filth, which still contained Twilight's mind and thoughts. Only the strongest emotions could be absorbed, however - Anger, hunger, lust. Who was she angry at? Lightning Dust! Rainbow's mind recognized that name and accepted it as her own. Hunger for food, lust for anything willing to touch her filthy body. Her chins doubled as her belly expanded, causing the suit to creak as she lost all control over her mind.

The colors of her mane began to fade, changing to a soft blonde while her body turned a few shades lighter. Finally, the bulk of the shit was ingested, and she took a loud burp as she licked her dirty face.

Rainbow Dash was gone. In her place, Lightning Dust let off a brassy fart as she stared at the remains of her filthy meal and the pony who created it.

"Princess Twilight? Looks like she took a few lessons from the ol' LD!" She playfully slapped the mindless body's belly, eliciting a fart from the other end, "Sexy bitch! Woo!"

"Um," Fluttershy said, knocking on the open door, "Miss Lightning Dust? Wh-what are you doing here?"