Sporty's Secret Soiling

by Odlaw

Rating: mature
Tags: Sex, Profanity, My Little Pony: Friendship is Magic, Original Character, Porn, Fetish
Length: 2188

A teenage stallion finally gets the opportunity to try out one of his more kinky fetishes when finds himself home alone.

Warning, this story contains: (Scat, Watersports, Light Crossdressing, Masturbation)

Sporty is a young teenage stallion with a secret fetish for wearing panties...and then doing dirty things in them. He has always wanted to try his fetish for real but has never gotten the chance to. However, when his parent's leave him home alone for a while, he is quick to take the opportunity.

Another Requested / Commissioned story. OCs featured in this story belong to the requester.

Published 2018-11-02 14:40:01 UTC
Last updated 2018-11-02 14:40:01 UTC

The Chapter

Author's Note

My first go at a male-focused scat story. They likely won't be too common of an occurrence from me but I hope you all enjoy!

The Chapter

This was it, this was the chance he'd been waiting for!

As soon as Sporty could no longer hear his parent's hoofsteps through the front door, he dashed from room to room in the house, making sure they hadn't forgotten anything. Once satisfied with the knowledge that he would indeed be left home alone for the next couple hours, he quickly galloped into his bedroom. Slamming the door shut behind him with a flick of a wing, he allowed an excited grin to spread across his muzzle.

'Im finally gonna do it!' He thought, a sort of nervous excitement building up within him. His parents would only be gone for about an hour, or two at the most, but that would hopefully be plenty of time for what he has planned.

Closing the blinds on his bedroom windows, Sporty trotted over to his closet. Still feeling a bit paranoid, he looked back to his bedroom door before opening the closet. Inside, he fetched a small cardboard box which he had cleverly hidden deep under a wrinkled pile of old clothes.

Sporty gulped audibly as he held the box in his hooves, taking it to the center of his bedroom. This was his secret box, it's contents known solely to him. This was far from the first time he'd ever held it like this, but as for what he was planning to do today...

Tossing the lid aside, the box's contents were revealed. It appeared almost empty, aside from a single lone pair of grey-ish panties that lay at the bottom of the box. They weren't anything fancy, but they were all Sporty really needed. He'd obtained them almost a full year ago when he noticed mother about to throw them away while doing laundry. He hadn't been too sure as to why at the time, but that didn't matter to him, he'd seen an opportunity. While she wasn't looking, he'd snatched them from the laundry basket. He would only later that night discover the reason they were being thrown away. The cotton fabric had developed a few small holes in the front.

Reaching into the box, he lifted them into the air in front of himself. He sighed sadly as he realized that this would likely be the last time he would ever see them like this. After what he had planned for them, they would definitely need to be thrown away.

Now, many might assume that he, like many other teenage colts around his age, only wanted these panties for the oh-so-alluring smell mares had a tendency to leave on them after use. But that was not why Sporty wanted them. He had no particular interest in that kind of thing.

With a little help from his wings, he was able to slip his back hooves through the leg holes before pulling them all the way up. They seemed like an almost perfect fit, though not quite as form-fitting in certain areas as they would be on an actual mare. Now that he thought about it, that was probably another reason why his mom had been throwing them away.

Sporty trotted back to his closet. As he did so, he enjoyed how the soft fabric felt the panties tightly hugged his flanks. Peering into the large mirror attached on the inside of his closet door, he inspected himself.

First, he stood facing the mirror, his folded wings making it hard to tell he was even wearing anything at all. But then, as started to turn sideways, his new apparel became more obvious. His face flushed red like they always did and his wings ruffled impatiently.

Finally, he turned one last time, his flanks now facing the mirror. Looking back over his shoulder and lifting his tail, his wings instantly shot out from his sides like coiled springs. Though the panties were a little loose under the dock of his tail, the panties gripped his crotch tightly, resulting in a visible bulge where his balls and sheath hung down between his back legs.

He was already getting excited. Slowly, the length of the bulge started to grow as his shaft emerged from its sheath. It wasn't very long before his cock stiffened to its full length, the head and a few inches of his shaft peeking out the front. Reaching down with his wings, Sporty pulled the panties back over his cock, though that did very little to conceal his raging hard-on.

Normally, this was about as far as he went. Next, he'd start stroking himself with his front hooves, eventually coaxing himself all the way to a blissful orgasm while he watched in the mirror. And while Sporty certainly intended on doing that very thing, it would be after he did something else first.

*Pwwwffpt*

Sporty shivered as a long and gassy fart slipped through his anus, blasting the inside of the panties with warm and smelly air. His ponut puckered and twitched, the movements visible through the fabric that was held tightly against it. He continued to let loose the occasional burst of gas, warning him of something much bigger that was on the way. At the same time, he started to take notice of the urgent pressure building in his bladder.

In preparation for today, he'd eaten a very special breakfast. Among other things, he'd eaten a large serving of prunes, drank multiple full glasses of water, and even took a small dash of laxative powder he'd secretly taken from his parent's medicine cabinet. With all these things put together, he had the perfect recipe for a massive and messy bowel movement.

Just thinking about it, Sporty very nearly lost control right then and there. But thankfully, he was able to regain control at the last moment. The fabric stretched over the tip of his cock was already stained a little from a few sneaky drops of urine that took the opportunity to escape. His sphincter has also started to spread apart, offering a small window through to the brown mass lying within.

Sporty sighed, relieved that he'd been able to stop himself in time. While he had every intention of giving his bladder and bowels the relief they so desperately desired, he didn't want to do so all at once. Dipping briefly back into his closet, he took out a large towel. He spread it out over the carpet, covering the whole area in front of his closet door.

'I can't risk anypony finding a stain...' He thought.

Once done with that, he looked back into the mirror again and stood sideways on to it. Looking down under his barrel he spotted the telltale bulge made by his erect shaft. It throbbed under his gaze, allowing yet another tiny spurt of urine to squirt out. It quickly soaked into the fabric, turning it a slightly darker shade of grey.

Taking a deep breath, Sporty carefully lifted his right leg, allowing him to get a better view of what he was about to do. Then finally, with one last full-body shiver of nervous excitement, he relaxed his tense bladder muscles.

He gasped as immediately hot piss began gushing from his shaft, with some of it passing through the fabric and stream down to the towel below. The rest flooded the front of his panties in a matter of moments and small waterfalls of yellowish liquid started spilling out over the hem and down the inside of his back legs. A glistening wetness spread backward, washing past his balls and working its way upwards a little.

"I-im pissing myself in a pair of g-girly panties." He mumbled quietly, his voice trembling from a mixture of excited arousal and relief as his bladder emptied itself.

Eventually, the constant flow of piss began to slow, becoming nothing more than a steady trickle from the tip of his cock. It was only once the dripping stopped completely that Sporty heard his own heavy breathing. Just from this display alone, he could easily cum with just a few strokes from his hooves. He was very tempted to do just that, but no, a prodding reminder in his rectum reminded him of what else he had planned.

Taking a deep breath to calm his still somewhat shaky nerves, he turned and bent down, raising his flank high into the air. Then, while craning his head down to peer through his legs, he spread his rear hooves apart. A sudden spike of doubt lanced through his mind as he watched himself in the mirror. For just a moment, he felt as if he was forgetting something very important.

But that thought was quickly forgotten as a sudden surge of urgency redirected his attention elsewhere. Sporty watched in the mirror as the outline of his ponut began widening of its own accord. Just as he felt like he was being stretched to his limit a small bump appeared under the dock of his tail, pushing out the fabric. Without really realizing it, his tail had already started flagging, raised high into the air and providing him with a perfect view of his impending 'accident'.

Accompanied by a series of faint crackling sounds, the thick log continued its exit. While small at first, the bulge grew rapidly, pushing the fabric further and further out as it attempted to accommodate for the new addition.

He felt himself pass the point of no return. There would be nothing he could do to prevent himself from filling his panties now. So of course, it was right as he crossed this tipping point that the log suddenly stopped moving. It just sat there, keeping his ponut stretched wide as the turd fought against the tight fabric blocking its exit.

"C-come on, get out of there!" Sporty grunted, trying to push past years of experience preventing exactly what he was now attempting to do on purpose.

His ponut quivered impatiently, threatening to clench and snap off what little of the log was sticking out. Holding his breath, he pushed as hard as he could.

He was met with success as the bulge suddenly grew another inch before bending down coiling up behind his balls. As more and more of the log slid out, it built up more and more. The thick, mostly-solid, pile felt warm and wet against his balls. The sensation tickled him in a way he had trouble describing, making his already rigid shaft throb hard.

"Haa~ whoah..." Sporty moaned, relishing in the warmth of the manure piling high inside his panties. The bulge was huge now, bumpy and brown as the mess stained through the fabric. Seemingly the only thing preventing it all from escaping was how tight the panties were. "I did it, I pooped myself in a pair of girly p-panties" He mumbled to himself, his face bright red from intense arousal and excitement.

Taking a few moments to enjoy the feeling, he smirked and began slowly moving his hips side to side. Sporty bit his bottom lip as he watched the massive bulge follow his movements, swaying hypnotically behind him. This was all it took to ignite an intense heat in the base of his shaft. He was incredibly close to cumming, without even touching his cock with his hooves or wings.

*Pfplarpt!!*

Another wet fart effortlessly slipped out of him, signaling a second, even larger, which immediately followed the first. Already agape from the previous one, his messy ponut provided no resistance as it was spread apart again. The second log was far thicker than the first, causing fireworks of pleasure in Sporty's to shoot through him. Yet again, the fabric of the panties was pushed outwards, even further than it had been before.

*Riiiip*

There was a shift as, suddenly, the small holes in the fabric that had seemed trivial at first, grew larger under the weight of his load. Sporty heard another rip and watched as the panties fell apart, dumping his entire load between his legs with a heavy *Plop!*.

This, in combination with a wave of cool air that met his now exposed filthy flanks, caused him to finally lose control. Instinctively thrusting his hips forwards, he moaned loudly as ropes of cum began spurting from the tip of his cock. His hot cum penetrated through the already piss-soaked fabric with ease, coating the moist towel beneath him.

Bathing in a pleasure high, Sporty failed to notice the sound of hoofsteps that were nearing his bedroom door. It was only once the doorknob began turning that he suddenly remembered what he'd somehow forgotten.

*Creeek*

"Hey Sporty! Im here for...the...sleep...over..." His friend, Heat Wave, said, trailing off as the two locked eyes.

"Uhhh, It's not what it...looks like?" Sporty whimpered sheepishly, completely paralyzed from embarrassment. Worst of all, was that he was still pooping.

However, it was only after this horrifying realization that he finally noticed his friend's raging wingboner at the sight before him.