Greasy

Story by Zwoosh on SoFurry

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#16 of Shorts

So when I got asked to do something fisting-related, you know my kinky ass just had to go the extra mile here. I love doing fisting stories, I hold back on them as I know it's not everyone's cup of tea, but I would honestly write fisting stuff all day long.

Commission by FA: Cocoronut


"Dirty fucking pig," Justin shivered as he allowed his face to be scrutinised so roughly by the fat rat, "Oink for me, piggy!"

Without even thinking for a second, Justin squealed, letting loose shrill, needy cries,

"Oink, oink, oink!" Shame burnt on his face in a baking hot flush, prickling under his cheeks with his eyes clenched shut, not daring to look the brute in the face as he felt fingers hook into his nostrils and push his nose backwards, up into itself so that it flattened his already squashed snout.

"Yeah!" The rodent snarled with a giddy sneer, "Fucking piggy likes being my little bitch! Gonna make you squeal so much louder piggy, gonna hollow you out and get you deep, make you beg to be ruined by me!"

Justin shuddered. Some small, lingering rational part of his mind told him to just say no, but it was drowned out by the quivering yet alarmingly loud voice that pleaded him to let the rat have his filthy way with him. So he stayed rooted to the spot, pinned to the wall, as a black rat stinking of bourbon manhandled his body like a toy, squeezing at the bulk of Justin's gut, prising at his nose until the cartilage stung, and kneading his knee against the boy's crotch. It was roguh, it was inelegant, and it had no direction other than the thug satisfying whatever whim crossed his mind, but it was such a turn on that Justin could barely contain himself. He humped the rat's knee as if he'd never been touched in his life, he mewled whenever he felt his chubbiness get groped, and he allowed the man to shape his face however he pleased. He was very much putty in this rat's paws.

His name was actually Ronnie, a greaser from the local garage. As having just freshly turned eighteen, why he was spending so much of his time idling around a mechanics was already impossible to answer without revealing too much. Justin suspected Ronnie knew that much too, hence why he'd allowed the kid to stay, why he had so brazenly stripped to just his overalls, bearing his beer gut and spattering of tattoos across his grizzled stature. He was grooming the kid, whittling away until Justin let down just enough of his guard for the rat to shove a paw down his pants and grope his ass cheeks whilst shoving a sweaty, pickled tongue down his throat and kissed the boy in what could only be described as a one-way make-out session. Much like Ronnie's way of showing his interest, it was heavy, it was hot, and it was enough to make any man's stomach turn.

But not Justin. Justin only got harder the more he let the randy rodent have his way with him. After all, months of loitering around the garage would not be spent in vain.

"You gonna be a good lil piggy for Ronnie?" The rat was practically biting in his ear, words hissed against his skull as the male groped his face, "Gonna let me in you, turn you into my greedy ass pig?"

"Yes sir!" Justin felt the words leap from his mouth with shrill panic, the flames of his arousal stoked by growing disgust at not just himself but the vision of the rat just degrading and reshaping him into this unrecognisable thing, just a toy to be played with, to dump a load in and walk away or to make squirm and squeal like a feral farm animal.

"Good pig!" He found himself released from the rodent's embrace, but still he shivered. In the absence of his rank heat he was cold and alone. He longed already to feel Ronnie's sweaty weight flush with him again and those paws snatching and clawing at every piece of his chubby flesh. "Strip then and show me that piggy hole. Let's see what I'm workin' with."

His clothes were thrown off as if Justin had been well prepared for the order. He threw away the baggy sweatpants, his shirt was practically ripped from his torso, and any underwear he had been wearing was dropped and kicked into the dark of the garage, forgotten and lost amongst the scrap. Stooping down, Justin got onto all fours on the cold, dusty concrete, absently squatting in the old stain of oil slick across the floor leaving vibrant if not muddy streaks of black and colour. With a coiled tail and fat, fuzzy ass, he lifted his rump into the air and spread his legs apart as best he could to give Ronnie exactly what he wanted; perfectly clean and smooth down to the faint peachy skin, Justin's puckered hole ebbed in the exposed chill.

Justin half-expected a little foreplay, something to prolong the dirty lust he was feeling churning away in his stomach, but slick fingers already prodded and probed at his ass, three bursting in roughly to his gasped surprise. It took the wind out from him, but the boar was too experienced to have found it difficult. The rat snickered as he slid those three digits in and out of his hole, greased with some lewd shine of slickness as Justin found his ass surrendering to the rodent's graceless touch.

"Slutty pig," Ronnie said between pants, "I ain't your first cock, am I boy?"

"N-no sir!" He stammered back, "I've never had a real man inside me before..."

"Oh-ho!" Immediately fingers sunk in deep. Four fingers, not three. When had he even added the extra one? Was the rodent really that good or was Justin just caught in the throes of his fantasy? He could feel his hole clench around the rat's paw, "You've only had toys? You're full of surprises, pig." His paw felt so fat in his ass, thicker than Justin had been imagining, he felt so full already, "What's the biggest thing you taken? Tell me how greedy you are."

"Titan..." Justin could feel the surge of excitement bristle through the rat's arm, and when he spoke his voice had lit up with perverted joy as if he had won some dirty lottery,

"That draft? My, my, my... You are such a pig, boy!" Four fingers were suddenly becoming four fingers and a thumb, as Ronnie ramped up his insistence that he stretch Justin to his limits, "I've seen the size of that guy, and his cock is magnificent. I bet you won't mind me doing this then."

Squealing as he felt his ass open up to swallow the rodent's paw, the slick lube farted rudely as his rim suckled down on Ronnie's fat wrist. His muscles swelled and convulsed around the fist inside him, feeling every bump and digit as they writhed in such small ways, like creatures in their own right working their way into his guts. Justin panted, snorting the air with such frantic breaths that he was sure to border upon hyperventilating were he to go any quicker, but there had been no warm up, no foreplay, no warning. His paws clenched into fists of their own as his body tried to adjust to the sensation of being full, the rat's paw squirming around inside him.

"There we go, greedy boy, took my fist in one go, I bet you want more, don'tcha?"

Justin whimpered, the paw slid deeper,

"Go on, answer me pig, you want my fist in you?"

"Mmm-y-yes sir!" He could hardly control himself, his whole body shuddered as he felt the fist driving into his innards, "I wanna be your pig boy, sir!"

"Atta boy."

His submission, finally vocalised, seemed to urge Ronnie on to some more depraved state. Though he would work his fist back, stretching it against the rim until it was just about to slip free, only to ram it back in, he would push deeper with every thrust of his arm. The sound of more lube, slick and juicy, erupted in the air each minute as Ronnie applied more and more to his arm, as if coating the very limb itself until it was sloppy and dripping. Justin's ass felt so wet and loose, yet his stomach felt full, feeling the weight of the rat's presence sagging inside him. It was like a worming entity, alive and throbbing, sliming a pathway into his guts without a means of defence. Justin squatted there on all fours as Ronnie rode his arm back and forth, easing his fist in deeper with every chance he got until Justin's blood ran cold.

"Look at that, already down to the elbow." His cock hardened at the words, his stomach lurched, but he found himself hanging his head low and leaning all the more back onto Ronnie's arm. There came the rough lump of his joint sliding past his rim, his paw working inside to navigate the twists and turns of his anatomy, and he whimpered in wild surrender as Ronnie pushed in. "Oh quit your moaning, you know you love it!"

Justin grunted, he felt his hole stretching wider, maybe wider than the Titan dildo had been, as he felt Ronnie sliding in his arm. They were up to the bicep now, a limit he'd never thought he'd ever be able to reach, but sure enough as the rodent took control he could feel the paw moving inside him, slopping around his guts until it carved a straight route through his body. Fisting he had thought about before but never like this, this was something else altogether and though he trembled with the sheer intensity of the moment he knew, deep down, that Ronnie was right as much as it scared him.

He loved this.

The rat's arms were thick, much like the rest of him. Caught between fat and muscle, Ronnie's arms had the density of steel and the girth that exploded into double digits when measured. Justin writhed as he felt the rat moving those final inches inside him, the arm twisting to compensate and adjust as the boar's body accommodated whatever the rat fed him. His mind was burnt at the thought of what was happening, somehow separated from himself he floated absently, knowing full well his ass was being stretching to the point of no return and his guts, from his bowels to his intestines, were being gorged open by the rodent's invading limb. He was being ruined in the most intimate, depraved way possible and it was happening not just to the videos he had found online that spurred his teenage masturbation fantasies, but it was happening to him. In real time, he fought to focus, becoming the very boy he had dreamt of being, the arm and fist pushing into the chub of his belly now, obscenely bulging out what was already the pudge of his gut, and slipping around inside.

"Nearly there now," Ronnie gnashed, his voice so shockingly close to Justin that it seemed almost surreal that he could possibly be this deep inside, "Right up to the shoulder, I'm gonna treat you good, pig. Make your whole world light up, my little ass pig."

His breathing was laboured, his ass under so much strain that he could barely make sense of the feeling. Was it pleasure or pain? His mind told him it should have been most definitely the latter, but everything else screamed pleasure to him. Justin was lost to the strange ecstasy as his body convulsed around the limb, his cock feeling tight as his ass was stretched open around the bicep. Ronnie's muscles twitched with every movement, Justin could feel every single time the rodent had to bend or straighten his arm, and like a cascade the sensation ran along the whole of his guts. He was going to cum, or had he already? Justin couldn't tell, but he was certain he was body was somewhere in that range, slick on the inside, heat running through his gut, and his cock feeling like it was about to burst from the pressure. Maybe it was the weight bearing down on his prostate, or the paw reaching so deep inside him he swore it was going to touch his actual stomach soon.

"Almost there... deep breaths for me, pig, let me in."

There was no choice as, with jubilant cries, Ronnie snickered aloud. Justin could feel it, pressing up against his wrecked hole, the shoulder joint of the rat smeared against his rim. He truly was as deep as he could be inside the boar and Justin lost control of himself, squealing loudly as his bladder and balls emptied themselves at the same time onto the greasy concrete floor, adding to the pool of leftover lube as Ronnie writhed his arm inside the boar's guts.

The rat grabbed the lube again, slathering his shoulder and the boar's rim, and then began to douse his other paw and arm until they ran slick with pouring rivulets. Fingers began to stroke at Justin's much too taut hole, prising at the ripe purple-pink fleshy folds

"Good pig. Now let's see if we can get another arm in there."