Beat Until Soft
by Withania Nightshade, extra credits by Gizmo

The Yoke & Reins wasn’t the most sophisticated bar in town. In fact it was one of those venues where most of the regulars agreed that it was a dump and they weren’t sure why they frequented it. But it was the kind of place to see interesting ponies - and sometimes, an interesting spectacle. A murmur of chattering voices filled the air over the background of music playing from a solitary speaker behind the bar somewhere, and a few ponies glanced up as the door opened.
A charcoal-gray unicorn walked in, his fur coat contrasting with silver mechanised legs. Catching the eyes of a few ponies looking his way, he headed over to the bar. One seat in the corner caught his particular attention - it was apparently empty, but a half-empty drink was on the table next to it.
Kick Pacer smirked at the ‘empty’ seat and brushed his light-grey mane back as he reached the bar. He ordered a beer and took a few satisfying gulps, savouring the refreshing wheaty taste. It relieved some of the tension in his body, but his flanks were going to need more than just a smooth drink to loosen up, and he knew just who could fix that - and how.
He sauntered over to the corner seat with his foaming drink. There were less people over here, it was more out of the way, but had an excellent view of the rest of the bar. Which was why a certain pony had chosen it as his accustomed spot, Kick knew. Pretending not to pay any attention to the bench seat he put his beverage down and backed up to the corner, tail up in the air.
There was a rustle from behind him - but too late as he sat down on an apparently invisible mass occupying the corner spot.
“Ooof!” came a muffled voice from under him, “Dammit Kick! You knew I was here!”
“Quiet, Ace, chairs don’t talk. You’re incognito, right?” said Kick casually, taking another gulp of beer and leaning back to settle his weight on the invisible pony he’d sat on. He could feel Ace’s muzzle wedged between his ass cheeks, unable to twist out the way.
“I’m observing!” complained the voice from under him, “And you’re going to blow my cover!”
“Oh I’d hate to do that… Tell you what, let me put you somewhere you definitely won’t get found,” murmured the unicorn with a devious grin. He swallowed another mouthful of beer and put his drink down next to Ace’s, then braced his cybernetic forelegs against the back of the corner bench.
With a deft wiggle of his rump, he aligned Ace’s muzzle directly onto his dark asshole and pressed his weight down into the seat. The incognito spy had nowhere to go, and his face was forced into a tight, but quickly expanding pucker. The thighs pinning his body in place spread wide, multicoloured cutie marks sinking over his unseen torso. His muzzle was greeted by the fresh smell of Kick’s rectum, stretchy, slimy, and quite eager to accept new mass from either direction.
Kick sighed under his breath, deflecting the curious glances of some other patrons wondering what was going on in the corner. Already he felt Ace’s twitches and jerks turning into a perfect internal massage for his rump, the relaxing ministrations making it all the easier for his asshole to envelop the pony wedged half-way into it.
Ace’s forelegs were pinned to his font as he was forced into an impossibly tight passage that stretched around him while compressing him into a uniform shape. The air was hot and harsh, but breathable - although his mind raced, speculating how long that would last. He wriggled and jerked his hooves to try and dislodge or discomfort Kick but succeeded only in assisting the tube of flesh sinking down over his body. Within minutes Kick’s behind was filled up with enough of him that natural contractions where pulling in Ace’s effeminate hips and rump.
Kick spread his mechanical hind legs wide in a slouch, flanks suddenly twice as wide as they were when he walked in, and took a long draught of his beer in satisfaction, feeling his innards reorient themselves around the pony trapped inside his lower gut. Black sheath and balls hung over the edge, jostling slightly from Ace slipping under them.
“Oh that’s right on the money…” he said, feeling his anus close over the tips of Ace’s hind hooves, “I’ll take the rest of your drink since you won’t be finishing it…”
Ace didn’t bother replying. It was taking all of his energy just to push back against the fleshy walls pressing into him on all sides. He could feel the damp spongy membrane softening up his body already - he’d have to think of something fast or else he’d get reduced to mush in here, and that would see him out of action for the rest of the week. Not good for somepony keeping tabs on the comings and goings of the seedy underbelly of society.
Oblivious to his meal’s concerns and focused on his own pleasure, Kick slouched with his swollen belly on display and metal legs hanging out on both sides while he drank both drinks from the table. He looked up to see a pale gray stallion in front of him. A zebra body with the forelegs of a griffon, turquoise eyes appraised him with a familiar but assertive gaze.
“Well well well, you’re looking comfortable. Something to share with me?” said the stallion, looking down his muzzle. From the bar and a few other tables and booths some other patrons were looking over, familiar with him and interested who he’d picked to give attention to. Or rather, who to demand service from.
“Ahh, evening Cairbre,” said Kick as casually as he could muster, his rump twitching slightly, “I’m just relaxing - fancy seeing you tonight!”
“I’d say,” Cairbre remarked. His tone was sultry with a hint of mock annoyance. He was taking charge here, and the whole bar knew it. “Although for someone relaxing you’re all quivering from the waist down. Eager to get rutted again are we?”
I guess it’s my lucky night, dinner and some action… thought Kick to himself. He could feel Ace intermittently moving about in the bulging expanse of his lower gut and rump. It felt like he was up to something - but he certainly wasn’t going to escape, so he could sit and stew for all Kick cared.
“You just gonna get on the floor or do I need to call Stoic over to set you in position?” prompted Cairbre, out of the loop on quite why Kick was nursing a balloon butt. As far as he was concerned, that ass was ripe for a pounding, and doing it in the bar in view of everyone who cared to watch - perfect for building his reputation around here.
Kick didn’t fancy sharing tonight, so quickly did as he was told in order to keep Cairbre all to himself. He slid off of the seat and turned to offer up his round and swollen ass, tail lifted to one side expectantly. Cairbre approached and placed a claw on Kick’s ass cheek to test the softness.
“What have you been up to?” he said, giving the bulging rump in front of him a gentle smack to illustrate his confusion. He inspected the goods, noting that Kick’s own cock was already out on show.
Thirsty boy, I give him way too much - I’m gonna have to get tougher on him at this rate.
“Haa, I uh, just ate too much today,” replied Kick, averting his eyes, “I hope you like it though?”
“I like you toned, but plush will do just fine.”
Cairbre put his fore claws on either side of Kick, whose upper body rested on the seat while his rump was presented to the room, and spaced his hind legs to reveal an already growing cock that matched the pale colour of his coat, twitching with anticipation. But he was controlled, he touched his tip to Kick’s aching sphincter, teasing the unicorn with the impression that he was about to split him wide, but then just backing off to the slightest of touch.
Deep inside Kick’s depths, Ace was scrunched up into a sausage, pressed in from all sides by the end of Kick’s intestine that seemed to be deciding whether to try and pass him upriver or down. The slime and smell was taking its toll by virtue that he was becoming accustomed to it - and Ace knew that the more he acclimatised to this environment, the more he would become part of it. Already his body was pressed far further into a conforming shape that what it should have been capable of.
I’ve got to get out of here soon or I’m coming out in a pile! he thought critically, as he braced himself against the intestine’s attempts to move him further still up Kick’s rump.
Before he could think of a plan, his world turned upside down as Kick moved from a sitting position into what felt like standing, and Ace heard a muffled voice from outside. It was too faint to make out through Kick’s padding, but Kick’s voice was loud enough, vibrating through the very walls that pinned Ace.
Oh great, now he’s getting action from the zebragriff…
And just to illustrate this realisation, he felt a mighty press from the direction he’d come in, Kick’s entire ass getting compressed toward his torso as Cairbre penetrated the unicorn with a full-standing cock. As everything around him squeezed in all the more, he waited for a moment of respite - but Cairbre held his position, a murmur of voices that were no doubt taunting Kick into begging Cairbre to getting on with it.
There was no room to breathe, there was no space to expand his lungs, for a moment Ace thought this was the end - and then like a wrung sponge being plunged back into water, Kick’s ass relaxed as Cairbre withdrew his length. Ace sighed in unison with Kick, and felt himself move slightly back toward open air and freedom. But just as he thought the motion of Cairbre ramming Kick’s rump might work him loose, he realised that his situation had worsened.
The pale gray zebra cock plunged into Kick’s ass again with no regard for comfort, and this time it began to piston in and out in earnest, moving with half strokes that kept Kick in place and unable to move his hind quarters in either direction. Ace settled a bit more inside and found himself being nudged by a flared tip, kneading him and squashing him against the tight walls even more than his initial abuse.
In his already softened state Ace was now in real danger of getting pasted there and then, and with nowhere else to go, he decided that anywhere was better than here. He straightened his hind legs out as best as he could manage, making himself as thin as he could, pointing his hind hooves. And as Cairbre’s steady and powerful shaft plunged back into Kick, Ace angled himself and felt his hocks plunge into Cairbre’s twitching dickhole.
Outside, Cairbre’s eyes widened slightly as he felt something twitch inside the unicorn ass he was plundering, but he hid his reaction, not wanting to look bad in front of Kick or their audience, who watched from shaded eyes across the room.
He adjusted his stance slightly to press deeper into Kick, feeling the unicorn squirm slightly to settle himself more absolutely onto the spear inside his ass. Cairbre began to press hard, not withdrawing an inch, just pounding his cock home inside the meat at his crotch. Something squirmed inside Kick and Cairbre felt his cock engulf that something entirely, expanding the end of his cock so much that pulling out would actually be difficult.
“That ‘too much’ that you ate,” he said, bearing down over Kick so that his weight pressed on top of the black pony, “It wasn’t alive and going up your ass was it?”
“Ahh, huff,” panted Kick, raising his head to rub against his partner, “It… it might’ve… he should be just a load to dump later on by now though…”
Cairbre withdrew, feeling a very undigested object lodge in his shaft.
“Well, out of the frying pan and into the fire with him then…” he purred, and without warning he stepped back and yanked his swollen phallus out of Kick with an audible pop that had the unicorn clenching his teeth.
Cairbre produced a condom, sitting back with his huge cock waving in front of him and a distinct bulge somewhere in the middle. Slipping the lubricated wrap over his length, he gave the bulge a gentle prod and said: “If you think you were escaping, you’ve just fallen into a much deeper pit.”
Before his cock or Kick cooled off, he assumed the position once again and poked the flare of his cock back inside the now suspiciously smaller charcoal rump. Kick’s asshole had clenched back up, and it was enough to ask it to accommodate Cairbre’s shaft, let alone the bulge resembling a knot at the medial ring.
But the half-griffon knew exactly what he was going to do now. He slowly, teasingly slid his throbbing cock into Kick until the bulge touched the unicorn’s cheeks, and then just as Kick thought that bulge was about to split him open, Cairbre began to ease the lump toward his own crotch, using Kick’s tight asshole to squeeze the unwilling payload toward the bulging sack hanging between Cairbre’s legs.
Ace realised that he might’ve made an error in judgement as he was now trapped in an even tighter space. A less hostile one, granted, but with even less room to maneuver. A contracting wave was pinching the crest of his head, nudging him toward the back of the thick and unyielding shaft he was lodged in, toward a brand-new destination that his previous fate.
As Cairbre hilted once again inside Kick, Ace found his confines stretch and grow slick, and before he could act to hold himself in place he slipped into a sack that spread around him and flooded his senses with the masculine scent of Cairbre’s seed, boiling and churning, ready to pump into Kick’s ass.
His legs now found room to move, but the walls were so slick that he could do little other than wallow in a bath of slippery goop that clung and matted into his coat. To add insult to injury, his face was now being repeatedly squashed between Cairbre’s crotch and Kick’s rump as the zebra-griffon resumed pounding the unicorn for all he was worth, grunts and gasps sounding closer now with the thinner enclosing walls.
Great, safe from turning into Kick’s manure I’m now going to end up as Cairbre’s jizz, thought Ace indignantly. His mass was already diminished, making him wonder if he was already past the point of no return - but if only he could escape! Medical aid from this ordeal would sure still be better than letting either of these two finish him off and leave his consciousness flying in the grid for the next several days - or wherever he got dumped.
“Well Kick,” whispered Cairbre into his partner’s ear, “Whatever or whoever you had tonight's mine now… Maybe I’ll give them back, but I don’t think you’ll have much use for them.”
“Heh- heheh- serves the tricky pony right, you- you can have him, just don’t stop, I’m so close…” huffed Kick, tensing up.
Kick could feel Cairbre’s swollen ball sack pressing against the back of his thighs, lumpy and twitching from within. The thought of Ace stuck in there, drowning in cum as it soaked him to the core was too tantalizing to resist. He pressed back against Cairbre’s dick, feeling Ace get squashed between their crotches, helpless to do anything about it as he wallowed in stallion musk and seed. And he felt his own shaft tense up in sympathy, with no intention of waiting for Cairbre’s direction.
“Don’t you dare-”
But before Cairbre could even start warning Kick not to cum first, the unicorn shuddered and his bouncing cock below squirted an arc of milky seed into the kick-board of the bench he was crouched on.
“You tart, I can’t take you anywhere,” scolded Cairbre. But he was ready anyway, and now he was annoyed that Kick had just stolen his thunder. He upped the ante by giving the last minute all he was worth, pounding his crotch against Kick hard enough to knock his muzzle into the back of the bench seat.
Finally, he felt the drawstring of tension at the base of his cock pull tight, and he clenched his dick and teeth alike, feeling the pressure build, and then release a massive glob of cum and the poor sod they’d both had a share of squeeze through his length and into Kick’s rectum, inflating the condom like a balloon.
In the moment of lubrication Cairbre pulled out of the condom, and with a smirk he used his flare to shove the end of the expended package into Kick’s rump, past his clenching pucker.
For a moment Ace thought he was about to escape, his softened and marinated body rode the wave of musk out of his stretchy prison - only to feel himself reenter the hind-quarters he’d previously escaped. Only now he was surrounded by slippery latex, and still submersed in Cairbe’s potent mix.
Squeezed, partially melted, and trapped, Ace lost all reference to where he was other than knowing he was now stuck in a filled condom left inside a unicorn’s rump - and knowing Kick Pacer he was going to be stuck here.
There was a muffled exchange of words between the two ponies outside, and then Ace felt Kick straighten himself and stretch out his legs, settling the bulk of the swollen condom in his rectum and letting his asshole close properly with the end of the rubber peeping out, hidden under tail.
“You did me a favour Ace,” boomed Kick’s voice around him, “I thought I’d be spending all night in the bathroom getting rid of you, but now I’ve just gotta pull out whatever’s left when I get home. Let me know what it was like when I see you again… whenever that’ll be…”
Kick chuckled and downed the last of his drink before strutting out of the bar, giving a few choice winks at the ponies watching him leave. It was a three-quarter mile walk home now, twenty minutes of steady pacing, his hips alternating back and forth, kneading and massaging the latex-wrapped pony stuck between them into a huge wad of Cairbre’s excessive load.
Ace tried to wriggle his way toward the back of Kick’s tight passage, but everything was now so slick and lubricated that he no longer had any control over his position, and could do nothing but let himself get rubbed and pressed over and over with every step that Kick made. He felt himself softening up to the point where he was now elongated, squished into the shape of his prison, bubbling and squelching in a translucent blob of cum that overloaded his senses.
Kick was grateful for the quiet streets, the constant and shifting pressure in his rump of Ace slowly getting moulded into paste was enough to keep him at at least half-mast all the way home, having to carefully balance his step to avoid catching his dripping cock on the road.
Ace couldn’t hold his form any longer. The tang of Cairbre’s soup around him had soaked to his very bones, and with one last feeble attempt to press the crushing walls of Kick’s ass away, Ace felt his legs bend and crumple, softened to a jelly-like state. A few feeble bubbles escaped him as his surroundings caved in, flooding every part of his body until his was nothing more than a goopy lump that continued thin out as he was diluted by cum.
Without any hint of fatigue, Kick reached his home and sat down feeling as though he had a water balloon stuck inside him. The stretch and press was mesmerising to feel. Even half-an-hour after Cairbre had savaged him, it felt like he was only just coming down from that high, the condom lodged inside preventing any of his acquired weight from spreading through his body.
Spreading his hind legs, Kick reclined on his back and gently pinched the end of the condom between his forehooves, and slowly pulled it out. The slick and taught wrap slipped through his sphincter with ease, its contents swirling as it flowed through the pinch point, until at last he had an obscenely filled balloon to hand with the sorry remains of Ace inside it - nothing more than milky spunk.
Somewhere in the musky and soggy remains of Ace’s mind he felt new movement. His shapeless mass that was no longer confined by his limbs, but by stretchy walls holding him together. But before he could try and gather himself, what remained was squeezed through a tiny gap and then suddenly rounded out. The wobble and swirl of fluid destroyed any centre he had left. His field of vision bubbled and went fisheyed, a three-hundred-sixty degree view in all directions through a smudgy lense of latex, held aloft by a huge pony next to him. He was in a bathroom, and the mirror showed a reflection of Kick inspecting a massive filled condom that was now his world.
With a deft movement of his hooves, Kick tied off the end of the condom and plapped it down on the window sill.
“Don’t go anywhere Ace, we’ll find a nice ejaculating dildo to put you in, and then maybe you’ll still end up back in someone’s ass after all!”
Ace was past any thought of escape. Now all he had was the thought of how long he was stuck this way, a waste by-product of Kick and Cairbre’s quick romp at his expense - and a view of himself with an unblinking eye.
Kick wasn’t away for long, he returned with a huge brightly-coloured cock that would’ve dominated the best of stallions. He detached a thin tube leading to a syringe that poked out the hefty weighted base of this toy, and then with a sly grin he poked the tube through the top of Ace’s condom, swiftly pulling the plunger of the syringe before any leaks could spill out.
Ace felt himself stretch out like a noodle, aware of both the centre of his fluid mass in the condom and a long strand spiraling through the tube into the plastic syringe. There was no time to contemplate the strangeness of it as he was transferred out of the sopping condom and now stuck in a plastic tube where the walls were ridged and formed him to a new shape.
After all of this, after everything he’s done to me tonight, I’m still going to end up in his ass! the unfortunate pony agonised. His hazy worldview had shifted, and he was positioned between Kick’s thighs as the unicorn got to work with the silicon shaft, the earlier activities at the bar providing ample lubrication leaking out to moisten the huge toy.
Kick was free to use is forelegs now, and pleasured his own length as he bobbed his hips up and down, glancing down at the waiting syringe, and even waving his length over it, as if to illustrate how Ace had been reduced to a mass even less than Kick’s cock.
“You ready Ace?” he said rhetorically, “You’re going right back where you started, and like this, you’ll mix in quite nicely… can’t wait to see you again after I’ve shat you out as steamy pile!”
Ace had no eyes to roll, and couldn’t even fume, all he could do was watch as Kick gasped and press down on the end of the syringe. Ace saw his cock throb and twitch just as everything rushed back through the tube and back into the dark and musky heat of Kick’s rectum. He splashed across the throbbing walls, losing all shape and stirring into a slurry of waste pushed back by the neon dildo stretching everything open.
Kick sat back to catch his breath for a moment, and then shakily stood up. I am going to be sore in the morning, but totally worth it... he thought. Bending down slightly, he pulled out the dildo so that his ass was pointing up, and as little as possible would spill out. Once he’d stretched out and settled his rather abused rump, he decided it was time to dump Ace for good. The backyard would suffice for that - give him somewhere nice to sit and contemplate his existence as a pile of shit. Spent as he was though, he nodded off to sleep there in the bathroom. Augmented legs kept him stable in position as he snoozed. For Ace, it was anything but stable. The earth herm was already liquid, but he found a new form as Kick slept. The gut let him fall in, down deep into the bowels as gravity sloshed him about. There Kick finally got something from him. Bits of protein and sugars from the load of cum were seeped away, the mass of Ace reduced from cum into digested waste. Pearly white became yellow and then tan, the manure pocketed with a few tufts of fur that had survived it all. Soft and creamy, Ace was left to stew through the night, the bowels quietly massaging him into Kick’s night soil.
It was a fitting end to the unicorn’s evening as he sighed with satisfaction, clearing his bowls into a not-insignificant pile on the chilly earth. Kick walked out his backdoor and flipped on the outdoor webcam with a cast of golden hazy magic. He wanted to make sure Ace knew just what happened to him in the end. Looking around, the cyborg debated on the spots to put him. A tree was boring and might leave the pile lopsided. The garden was already rambunctious enough without adding such potent fertilizer. He tapped a metal hoof to his chin, but Ace got to choose in the end. Kick felt the pressure building, the shitty spy pushing back with a desire to be free. Kick just grunted and took to an open spot by the crushed oyster shell path. Ace would just be a smelly monument on it for a bit. Hind legs spread and silver tail flagged, Kick nickered as he relaxed the little bit. His well used tail hole barely rippled as it bulged apart and freed Ace with a light puft of tan hairs. 
Ace ran over in his head how he would get back at Kick for this. His stakeout lost, the fine single malt wasted, and now he just smelled of ass and cum. And he was stallion shit to top it off. What else could make this worse he thought. The sudden crush of the bowels pushing his world smaller gave him the answer. Oh yeah, I still get to be pooped out. Ace was compressed, the light beige golden gut nugget he was had finally been moved into something solid after all the time spent as liquid. Clumps of fecal matter cracked apart and melted together on the way down the colon. Ace was molested once more by the walls, the dmanable interior teasing him in a way that he couldn’t finish on his own. Don’t leave me needy, don’t leave me need fuck you’re going to pay for this as well Kick. Ace went to the bottom of the bowels. And paused at the first barrier. A bit of him passed through, Only to be portioned off from the rest. Outside, the first horse apple sloughed out of Kick’s ass and wavered as the edge, Another came behind it and the pair fell as one to the ground. Steeped in ass juice, they steamed a muggy cloud that smelled like Cairbre into Kick’s nose. 
He flexed involuntarily, and his ass compiled, the remains of Ace sloughing out quickly as more clumps of shit. The pile grew, smooth and soft as nothing to really show that it had been Ace survived the night. All that was left were a few hairs from his coat. The pile rolled and grew, its inner core compacting under the wight and sliding into the fresh soil.  Once he was done he turned to admire his achievement for the night, smirking at the faint steam that wafted in the breeze.
I’ll see you again Kick, muttered Ace in his head, feeling himself seep into the earth as the pile he’d became settled, Plenty of contacts, and now at least I’ve got time to plan. Almost glad you’re not even thinking about this because it’ll make it all the sweeter when you don’t see it coming.
Kick Pacer gave a satisfied shake of his tail and walked back in, leaving a steaming pile of shit to the elements.