Sinful Servitude

Story by stinkin_weasel on SoFurry

, , , , , , , , , , , , , , , ,

This is a commission I did for sindragon about his human OC Sin and the MLP characters Spitfire and Rainbow Dash. Neat little idea where his characters is trapped in Equestria and forced to become a toilet slave for the Wonderbolts. Actually had a lot of fun writing this. If scat or MLP ain't your thing, this ain't your story, if those are... enjoy :)


Sin yawned as he stretched out both his arms, the only human of Equestria starting what would be a very unusual day. He had been living in Cloudsdale for a year and a half now, after being brought to Equestria from a misfired spell, done by a soon punished group of unicorns. Despite having to relearn everything about his life to adjust to his new surroundings, he had found a way to be happy. His new life had been made to be all about Spitfire, the Wonderbolts leader having taken to him upon his arrival.

As time had went on their bond had quickly grown and they found themselves somewhat in love, the two becoming a very oddly matched, but very happy couple. Everyone supported the two however and Princess Celestia had even put a permanent cloud spell on the human, allowing him to walk on clouds and live with his new found mate. All in all he had grown quite fond of his new life, but there was one troubling truth about his new home, that always was in the back of his mind.

Despite all the other wondrous inventions and magical prowess, Equestria still did not contain any real plumbing or toiletry. With that drawback, several areas were often covered in manure and there were plenty of ponies who made a living as personal toilets. The very idea was frightening and obscene to Sin, but being the only human in the land, he was forced to learn to live with these rather odd habits.

The charity that had been so thoughtfully given to him this past year was slowly running out, the rest of the town quickly beginning to leave the strange human to his own devices. With the need for work, and the lack of skills of a regular pony, Sin was running out of options, and with the Wonderbolts having been forced to use each other for servitude for quite some time, had turned to the human for the task.

Sin left his house, naked as always, the weather was warm today and living in this new society there was no shame of one's body. He had to admit, even though the whole toilet situation left him apprehensive of the ponies' lifestyle, the shameless outlook on one's body was rather refreshing. Almost immediately upon leaving his home he was bombarded by his girlfriend, the beautiful mare pressing her muzzle to his lips as they shared a short but loving kiss. "Morning handsome," she said with a smile, cocking her head to the side as he looked a little disgruntled, "What's wrong hon?"

"Your breath sweetie, it's a little... bitter..." he replied, looking away for a moment.

"Oh..." she blushed, "Yeah, sorry had some work to take care of earlier, so my breath is a little ripe right now..." She fiddled her wings anxiously as she tried her best to find break the awkwardness, "It's no biggie though, gotta do it and-"

"No," Sin interrupted, "No, it's not ok, you shouldn't have to do that, it's my job now and... hell or high water, I'm gonna learn how to do my job, starting today."

She smiled sympathetically at her mate as he spoke with pride but clearly with a little bit of fear as well, "Ok hon, listen Rainbow Dash is taking care of some business right now, but if you're sure this is your decision as soon as we're... y'know," she looked back at her flank, "'Ready', then we'll train you."

Sin nodded silently as he thought about the taste that lingered in his mouth after his short kiss, deep down thinking, 'It's really not that bad... I'm sure I can handle it.' Spitfire patted the human's side with her hoof as she motioned behind her, absently looking off in the distance towards the direction that would lead them to their friend, "C'mon, let's get it over with hon!"

...

When the pair had arrived to a cloud, just a short flight away, they both took a seat, comfortably relaxing as they watched their blue furred friend prepare to do her side job. They watched eagerly as Rainbow Dash got into position under Soarin, the stallion stretching out his legs as he got himself comfortable. "Ready there Dashie?" he said brightly as he wiggled his tail, a little rasp sounding out of his pucker.

Rainbow shook her head in mild disgust as she smelt the rich odor seep out of the stallion's rear, "Just get it over with!" She was met with a round of laughter from Soarin as he knelled down a little, another fart escaping his rear as his smooth button began to bulge out, stretching open to let out a long cylinder of thick, pungent manure. Despite the offensive smell and taste, Rainbow made surprisingly quick work of it all, her muzzle catching most of the mucky mass and chewing it down before the stallion had a chance to make any more.

The mare took out a deep breath as she finished the first bundle of waste, looking up at Soarin's butt as she let out an exasperated, "Well?"

Soarin grunted as he pushed a little more out, the second lump of musky manure, all he had left to offer her. He listened closely as he heard he chomping down on it, turning to drape his cock over her face as she swallowed. "Fine, you got lucky this time Dashie!" he called out, "...but next time," as he spoke urine began to pour out, a little hitting her chin before she opened up gulping in a frenzy to keep up with the pace of the hose-like jet of urine, "...next time, you won't be so lucky!"

She gulped down the last little trickle of horse piss before it all sputtered out to nothing, the last drop caught on her tongue as for a brief moment, she sucked teasingly on the head of his cock. It flared out as Soarin groaned out in surprise, the words "D-d-d-dash wha-" stuttering out right before she smacked him with her hoof, laying him flat on his ass. "Alright your business is done, get out of here!"

He laughed louder than ever as the feisty mare kicked him away, his wings flapping him up into the air as he called out one last thing upon leaving, "Oh Rainbow, you're so cruel, don't be too hard on the new guy ok?"

Sin's heart raced as he thought over the stallion's words, nervousness and tension welling up as he tried his best to mentally prepare for the same treatment Rainbow Dash had just been given. He couldn't help but blush as the mare flew over to the two of them, shaking her head and stamping her hooves as she spit out a few little globs of brown. "Yuck, Soarin's gotta change his diet, his dung is just too bitter!"

Spitfire nodded as she related to her friend, "I hear ya girl, I took care of Fire Streak this morning, man dose he make loads!" The two ponies laughed as though they were talking about something so simple, everyday and ordinary. Sin still felt completely out of place in his new surroundings, especially when it came to their rules of toiletry. As he stood there silently stewing, a low grumble rumbled out of Spitfire's tummy, the mare looking over at Rainbow Dash, before turning back to give a weak smile to her mate, "Well, sorry hon, but it looks like it's just about time to teach you how to serve."

The human nodded as he let out a long anxious breath, "Well... at least I don't have to wait and worry any longer..."

...

Several minutes later both ladies had decided who would be served first, based on who had the greater urgency to relieve themselves. Sin took a deep breath as Rainbow Dash adjusted herself above him. The way her wings gently waved kept her almost levitated in the sky, Sin's hands able to easily hold her cheeks as he reached his tongue up. He had no troubles with his first action, his tongue sliding over the smooth rippled flesh, the pink tailhole nestled between the blue rump musky and inviting. He lapped his tongue over the bright pucker until it opened for him, allowing his slippery muscle to probe deep inside the female's rear.

"Jeez, your boyfriend has one hell of a tongue!" Rainbow Dash said enthusiastically to her friend, the Wonderbolts leader waiting patiently for her turn. "How about you tease my pussy a little before we get started?" the sparky pony said as a blush filled her cheeks.

"Yes mam!" Sin obeyed, taking his submissive stance seriously as he dragged his tongue over her damp folds. Rainbow moaned out as her pussy was teased by the human's tongue, her pink folds getting wetter as he searched out her clit. He managed to find it without much hassle, sucking on it firmly before continuing his loving licks.

"F-fuuuck Spitfire, I may be a tad jealous!" she admitted, flapping her wings a little so she could bounce her pussy over the man's face. Seconds later she nipped her bottom lip, whimpering out, "Ah damn, I can't hold it anymore!" Sin's ears twitched at her words as suddenly a bright jet of yellow began streaming out, filling his mouth with her rich urine. It was sour, salty, and a bit bitter but he all in all he didn't really mind the taste.

He gladly drank it down as emptied her bladder, Rainbow sighing out as she gave herself much needed relief. It took a very long time for her to finish her pungent pee, the stream getting darker and richer the more she emptied herself.

For a moment or two Sin was unsure he could swallow it all down, but just before coughing it out, she began to slow her jet to a trickle, sighing as she finished. "Ahh, that's better," she breathed out, a moment later pinching out a little fart, "Better get your lips back Sin, it's not gonna wait any longer."

Sin nodded as he sensed the pony's urgency, his mouth moving back to her rump as another little fart rasped out, the bitter scent causing Sin's eyes to water a little. He managed to work up the courage to tap the now pungent backside with his tongue though, honoring his duty as he waited anxiously for Rainbow to begin. With another sigh from the mare, her button began to spread, the smooth hole erupting out a thick pile of green sludge. The male managed to catch it with his mouth, and his body shook a little as he struggled to ignore the gag that lurched up in his stomach.

The smell and taste were overwhelming, bitter and greasy as he began to chew. The rich muck broke way to solid chunks of apples and other fruits, the remnants of the digested fruit lingering on Sin's taste buds.

Occasionally he would find some leftovers of hay and would need to chew an uncomfortable amount to get it down. Rainbow Dash groaned and sighed as she relieved herself, both ponies getting a giggle out of the sloppy chewing and gurgling they heard beneath them. "Looks like you're a good shit eater after all huh?!" Spitfire commended her mate, trying not to hide the blush on her muzzle or give away the fact seeing him do this excited her a little.

Sin tried his best to place his mind elsewhere, the embarrassing nature of the act and the awful flavour beginning to get the better of his psyche. Just when he thought it couldn't get any worse a second little piece plopped out. The moment he bit into it he nearly threw up, the stench that radiated off it was gag-worthy and the taste it contained was downright offensive. He soon realized that this was the result of Rainbow's own service earlier, the stallions' shit digested a second time and now leaving the incredibly dark and disgusting blob that now sat in his mouth.

Despite the horrendous assaulting flavour he managed to chew it all down, and after giving the rump a quick lick clean, he dropped back against the cloud floor, gasping for breath, his lips now stained brown as he finished his first task. "Whew, man I had to go, thanks for the save Sin!" Rainbow Dash called out appreciatively, sitting herself down on a nearby cloud as she allowed Spitfire her turn to use the human loo.

Sin looked up to his mate with a weak but noticeable smile as her rump came into view, he knew his feelings for the mare wouldn't make his task any easier, but somehow it just felt right with her. "Don't worry hon, I won't lick ya back there with my lips like this." Sin said thoughtfully as he knelled up closer to his girlfriend's pretty little pucker.

The mare blushed as she cleared her throat, trying to sound tough as she stuttered out, "Umm, w-well you can if you, you want, I mean, it-it'll wash out anyways!"

Sin chuckled as he nuzzled his nose against the pony's tailhole, inhaling the intoxicating musk, "Read you loud and clear babe!" He tickled his tongue against her pretty button, his brown saliva lathering her rump as an inch or two of the muscle slid into her backside. She let out a low moan, almost like a purr as she felt the soft, enticing tickle, her tail flickering over his head from the brush of his warm breath escaping his nostrils.

Spitfire let out a low murmur as she enjoyed her boyfriend's attentions, speaking softly as she felt the heaviness in her belly, "Sorry to break the mood dear, but I still gotta take care of some business..." She could feel Sin's head moving in a nod before latching back onto her rear, the pony sighing as she relaxed her bowels a hissing fart seeping out of her.

Sin let out a muffled grunt as her pucker let out a little rasp, her musky fart radiating over his mouth. He had no trouble getting used to this one, although strong in odor, it felt better to him mentally, knowing who it belonged to. He even broke a smile briefly when a second fart squeaked out, her pretty button spreading as the tip of a rather slimy looking log began to curl out.

He caught the tip of it with his tongue as it fell, guiding it into his open mouth until it filled all available space. He chewed slowly and sensually, sampling all the flavours hidden in the detail of his girlfriend's shit. Little bits of her meals slid over his tongue and teeth, the human chomping down with purpose.

Spitfire sighed as she let out another rippling fart, the gassy expulsion quickly followed by another volley of manure. Sin had just barely finished the first amount when he was forced to start on another, this one so dark green it was nearly black. He could tell it was her portion of the stallion's business, the thick lumpy crap bitter like nothing else.

He tried his best to grin and bear it as he slid the double digested muck around his mouth. Each bite cause him to gag and cough, nearly lurching up everything he had already ate. "It's ok hon," Spitfire suddenly spoke as she heard her lover struggle, "You'll get used to it, first couple of times are hard."

"It's, o-k" Sin replied as he gulped the mess down, panting desperately when he was finally finished.

"Well as impressive as that was, I'm starting to get a little bored now," the voice rang out suddenly behind them, Rainbow Dash hopping back into the air to speed off, "I'll be back later lovebirds!"

Sin was about to get to his feet to speak with his love before a gentle hoof pushed him back down, she awkwardly placed her folds over his head as she whispered almost embarrassingly, "S-sorry hon, not quite done yet..." Sin made sure to open his mouth as Spitfire relieved her burning need to pee, a yellow trickle dripping out into the human's waiting maw.

He kept his mouth wide open as she emptied her bladder, the trickling shower of urine gushing down into his throat. He kept gulping down as it seemed to course out endlessly, his taste buds almost entirely free from the earlier dung as they were now filled with sour mare piss. He didn't mind the flavour in comparison though and happily accepted the salty mare mouth wash.

"Mmm, that was wonderful hon!" he half told the truth as he licked his lips, dragging his tongue along her damp pussy lips.

She blushed as she dropped herself to the cloud next to him, rubbing his legs with her rump as she looked behind her, seeing the aching hard on he had acquired. "Looks like I may need to help you take care of something there stud!" Sin grinned as he took the hint, grabbing both cheeks of her rump gently as he teased his shaft over her swollen lips. "God, you must have really gotten worked up eating all that mare manure!" she teased him.

Sin chuckled as he blushed, readjusting himself so the first few inches of his cock could sink into the mare pussy, "What can I say babe, I'm crazy about ya... even eating your shit kinda turns me on!"

Spitfire let out a gentle coo as she felt his cock probe just an inch or two into her, moaning out as he prepared to mount her. She was about to go all the way with him when suddenly voices rang out above them, the mare moving forward so Sin's cock could drop out of her.

Before the two could engage in any further sexual activity Rainbow Dash returned, eagerly followed by two other members of the Wenderbolts team. "Here he is girls," she called out in her usually loud and cocky demeanour, "Ready to initiate this newbie?!" Spitfire couldn't help but chuckle as Rainbow Dash jeered on her companions, ready to serve her mate a rather 'warm' welcome.

"We'll take care of that later hot stuff!" she winked as she looked back down at Sin's hard on, flying over to a nearby crowd with Rainbow as they prepared to watched the show about to take place. Sin gulped anxiously as he looked up at the two plump rumps above him, Fleetfoot and Surprise standing over the human on either side as their tails flickered in anticipation. Sin close his eyes as he heard little rumbles of gas burst out from both mare's rears, the bubbling air quickly turning to a pinching squirt as piles of mare manure piled out onto the human's chest.

Sweat poured down his forehead as he felt the slick muck covering him slowly, his cock still achingly hard despite the gross humiliation. "Looks like he likes it!" Surprise giggled out as she squeezed tightly, another chunk of digested hay splattering over the human's erection.

"Why don't you rub it in you furless toilet?" Fleetfoot said a little cruelly,"Mark yourself with our scent and prove you're one of us!"

Sin shivered at the thought as more of Fleetfoot's dung spurted out of her, cascading down over his neck. "O-ok" he whimpered out as he began to slowly lather the muck covering him into his skin. His right hand pumping manure over his cock as he began to get off to the mare's nasty torture.

"Good toilet!" Surprise said in a mock lust pushing out the last little log she had left, it dropping square into the human's mouth. After all he had been forced to eat so far that day, the texture and flavour of manure barely even phased Sin anymore. Slowly he bit and swallowed the log down as with a gentle sigh, Surprise began to piss all over Sin. Fleetfoot joined in soon after and before Sin could even utter a word of protest he was left soggy and muck covered, both ponies emptying every bit of waste they had stored in their body over him.

They giggled and chattered as without another word, they flew off, Sin slowly getting up to his knees as he looked down at the mess they had made of him. Before he could decide what to do next, his mate dropped down in front of him again, wiggling her butt out to him as she showed off her wet pussy lips, "So, where were we before being so rudely interrupted?"

"Mmm, hon I'd love nothing for than to fuck you but I'm so dir-" he began before he was cut off.

"Well then what are you waiting for you Sin," Spitfire interjected, clearly unphased by her boyfriend's appearance, "Act like a stallion and get yourself some flank!"

Sin's smile got wider as he heard those words, giving a gentle thrust into her, so his cock could plunge deep into her needy pussy, "Yes mam!" He let out a low, lust filled grunt as he smacked his entire length into the lovely mare cunt, her pussy lips soaking wet as he began to thrust away.

Spitfire let out her own passionate moans as she was mated, the vicious thuds of the human's cock enticing the pony. She didn't mind the feeling of manure hitting her rump as the smelly body thrashed against her, Sin's palms messing her back slightly as he gripped her for support. Their thralls of passion were made much lewder as they decided to go through with the act, despite how dirty it was making one another.

Sin kept humping against the beautiful mare, his balls bouncing against her rump as he slid in and out of her. After all the tension of the day had been cleared he was near ready to burst. He grabbed onto her tail as he drove on home, the mare's pussy clenching and squirting as she neighed out a loud climax, the human also reaching orgasm as quite suddenly he filled her inside with rope upon rope of thick white cum. As soon as he had finished the two collapsed, taking a good amount of time to catch their breath as they both felt a warm wave of afterglow overtake them.

When they had finally regained enough strength they embraced each other in a firm hug, Spitfire's wings curling over Sin as their tongues danced against each other. When their kiss broke, a single strand of brown saliva kept the two connected, Sin wiping it away with a chuckle as he soon looked down at his own body, realising how dirty he really was. Spitfire smiled as she nuzzled against him, asking half-jokingly, "Rough day at work?"

Sin nodded with a smile as he watched Spitfire suddenly summon a dark cloud over them, "A little rough, but I think I can get used to it."

The mare jumped up to smack the cloud with her hooves, water raining down upon the two until they were good and clean. She turned to Sin and motioned him to follow her back to their home, chuckling at a pun that suddenly hit her, unable to hold it back, "Well honey... at least you don't let your troubles cloud your day..."