Clay- Male anthro pony. Gray fur and mane, buff with a muscle gut.
Troy- Male anthro cat. Orange and white tabby fur. Lanky and scrawny.

Dr.Schisser ran Aspen hill apartments, it wasn’t the worst complex in the world. Though It was nowhere near the best, he kept the rent somewhat below average, and managed to the complex well maintained, at least, as far as the government was concerned. His actual income stream was finding, and tuning individuals for certain wealthy and influential furs. The complex was his hunting ground, a way to scout subjects and observe the results of his experiments. The low rent and high demand allowing him to be picky about whom ends up residing in the complex, weeding out those who would attract too much attention if they were to suddenly change behaviors or disappear entirely. With a few well-placed bribes to certain local officials ensuring that any prying eyes would be redirected before they stirred up any extra trouble.
Dark room:
“They should be ready within the week sir… Yes, a bonded pair, as you specified. Thank you for your generosity…. Oh no sir, I couldn’t join you on the island. Far too busy here you know… Certainly, I’ll let you know when they are ready for pickup.” Dr Schisser hung up the phone and turned to the squat anthro rat poised infront of a great wall of monitors. “Max, you did do the necessary maintenance to apartment 304 I trust?” The tall anthro weasel raising an eyebrow. The rat nods, “Yes, sir. Pumped in the gas last night to ensure they didn’t wake up. Dosed all consumables as instructed… And ummm… redirected their water to the special reservoir. I opened the valve myself.” The weasel smiles, “Excellent. And the letter?” Max’s eyes widen, “Oh! Yeah. Slid it through the mail slot, like always.” He gestures towards a video screen just as a short, broad anthro pony bends down to pick up an envelope.
Troy and Clays apartment:
Clay picks up the manillia envelope, frowning before opening. Then grinning broadly as he reads through the letter between setting up coffee and breakfast for himself. Leaving the coffee to brew, and cereal half eaten, he gets up and charges towards the bedroom of his wannabe streamer roommate. Barging in without knocking, startling Troy at his desk. “Hey man! The landlord left a note for us,” Tossing folded paper and an USB stick onto the cat boys desk, “here’s your part. I already read it since I’m sure you’d just toss it in a pile and forget.” Nodding his head towards an obvious stack of mail already in the room. “Seems he’s willing to give us a break on rent this month if we do some stuff for him. Gotta review some game his nephew wrote, should be on that.” Pointing at the USB stick.
Troy gestured lamely at the ‘you died’ prompt on his screen, “But I’m in the middle of…”.
Holding up a hand, “Stuff it, look, you’ve got what? Five viewers? One of them is me… and you know I just leave that on so you get more traffic. Of the other four, pretty sure two of them are bots, one is your other account and the last never engages. Fairly certain they subscribed on accident.” The pony staring down at the seated cat in pity.
Indignantly Troy starts in, “HEY! I’ve got some ad offers, and…”, petering off, out of steam as he scrambles for a believable lie.
Clay shakes his head, “What have you got to lose? If its good, you’re in on the groundfloor of some new world sweeping game. Make some hints and tips video, and you’d be set. If its bad, at least you can use your rent to put some food in the fridge and stop all eating mine…”
Troy looks sheepishly at the half eaten frozen burrito on his desk… “Err… sorry. I...”.
Clay looks around the room with pity, eyes sweeping through the piles of detritus then landing back on his friend, “Its okay man… I know, just.” *Sigh*, “Maybe take a shower sometime today man, and please do some laundry, clean up your room a little? I would like to bring a date here sometime… anyway, I’m gonna hit the apartment gym for a bit. Please at least think about it, okay?”.
The cat boy watched Clay turn to leave, gaze lingering a little longer than needed on the pony’s tight ass and muscled back. Then peers around his messy room, muttering under his breath, “Like you’ll ever get a date, Clay, you work on a garbage truck.” *Sigh* ‘Maybe he is right... I have let it go a bit.’ Eyeing the USB stick for a moment like it was a dead bug, letting out another heavy sigh before slotting it into his PC, “Fuck… I hate when he’s right.” Hitting the install prompt before turning to tidy up his room.
Clay grabbed the coffee and sat down to finish breakfast, putting in his earbuds and hitting play on the MP3 player provided by the landlord. Shrugging inwardly as the repetitive beats of some distant cousins EDM track washed through his mind. 
Dark room:
The anthro rat turns away from the grainy video focused on the pairs apartment, looking up to the much taller anthro weasel “Dr.Schiesser, isn’t the cat some kind of game streamer. Won’t others be affected by the visual ques we put in the game?” The weasel rolls his eyes at the comment, “It’ll be fine Max, both treatments are specifically tailored to those two, and you know it won’t work unless they already have the inclinations towards the behaviors… That aside without the chemicals you put in there make them more suggestable any who might catch some of the visual or audio stims would have an easily ignored momentary thought. Like when you stand at the edge of the train platform.” He waves dismissively, turning his attention towards the paper in his hand, “All that aside I’m quite certain that those spam bots are unable to do anything close to what is being implanted in the cat’s mind. And the pony’s, well, they might be slightly more assertive. Now shush. I must make a few calls. Keep me apprised of any major changes to their behaviors.” The doctor walking out as the rat turns back to the monitors.
Back at the apartment: 
Troy finally sat down at his PC again, his room noticeably cleaner and fur smelling of soap. Feeling better about himself now than he had in a while. Figuring that he didn’t run a webcam, the tighty whities he was wearing should be fine, it was a bit warmer in the apartment than usual anyway. Releasing a breath he didn’t realize he was holding as he woke up the screen and sees the install complete box. ‘Here goes nothing… He clicked ‘Run now?’ then turned to start up his streaming program.
“Hey gamers its your boy Troy! And I’ve got something new here sent in by a fan! I’m the first to review it, might be good, might be terrible! Don’t forget to hit that like and subscribe button to keep up with any updates. And so, without further ado, lets get into it.” With the intro out of the way he falls into stream of consciousness chatter, describing exactly what he was doing on screen. Reading out any prompts, intentionally doing the obvious wrong thing at times. All while running through what was, at least on the outside, a fairly generic click-based adventure game.
Guts churning as he absently burped and farted far more regularly than normal, and frequently failing to mute himself before doing so. His active mind dismissing it as the side affect of Clay’s bean burritos. His body reacting, and cock slowly stiffening as the stink of his bowels invade his nose. Absently sliding his free hand into his underwear, caressing his stiffening cock, digits slipping down around his sweating ballsack to slick source of the smell his asshole. Only pulling it back out to sniff and suck the foul muck off his digits, then going back for more. His mind focused on the game and keeping the one-sided commentary running. Body running on autopilot playing with himself and his stink throughout the morning.
The Gym:
The small room contained a treadmill, stationary bike, a set of freeweights and bench and one of those multi-machine ‘home’ gyms. All in all, maybe three people could use it comfortably at any given time. Clay entered, setting his protein shake down next to the weight bench and settling into his workout routine. His body going through the motions as his mind was unknowingly warped by the hidden audio tracks.
‘I know losing his job was a blow, maybe I should be harder on him. His streaming attempts aren’t going anywhere… boy needs a dose of reality.’ Sipping at the tainted shake between reps, while the musical stims massage his brain. ‘When I’m done I’ll go talk to him… yeah, maybe take him outside for a bit. Get some beer and burgers or something.’ Another big swig, ‘talk to him a bit, I mean, lying to his parents? Eating my food?… I mean I know I said it was okay at first. But that was months ago. He just sits around doing nothing.’  
Grunting and farting loudly as Clay completed his set, the noisome vibrations drawing the attention of a lone cheeta girl on the treadmill. She frowns eyeing the flatulent ponyboy, her eyes widening in distress as the foul gas fills the room. Deciding to cut her workout short and leave rather than be stuck in here with the sweaty, gassy boy.
‘Doesn’t even keep the apartment clean… the least he could do, being there all day. Instead of parading around in his underwear.’ *Pffffffttttttt* ‘At least he does look like a girl from behind, those wide hips… Fuck its been too long since I’ve had a date… why am I even considering that… Although, maybe those looks I caught weren’t nothing… bet he jerks off thinking about me.’  His own cock stiffening as various lewd scenarios run through his head. Scenes of punishment, payback, and sex.
He finishes his workout, stalking out of the empty gym room and clambering on the first available elevator. Deliberately Ignoring the stares and frowns from the other furs already onboard as he focuses on the goal in front of him. Eyes idly settling on the exiting rear of a spandex clad anthro elephant lady. ‘Damn, wonder what her asshole tastes like, bet she shits a ton.’ 
Troy’s room:
A boss goes down, the screen flashing brightly over the hunched cat boy. He leans back from the screen, lowering his headset, “Alright gamers, gonna take a break here. I’ll be back in with more later.” He ends the stream and pulls off his headset. Before looking down his thin body, finger circling the tip of the tiny pink cat cock poking from waistband of his sweat stained briefs. A semi pleasurable pressure in his bladder reminding him of other needs, he stands and heads for the bathroom.
Standing over the porcelain water bowl, forcing his dick to relax enough to piss. The golden liquid tinkling in the light mesmerizing him. Only cutting off as he pushes out a fart, the bassy roar echoing in the small bathroom. Mouth watering as the sharp scent of cat urine fills the air, almost unconsciously he puts a hand in the way of the stream, splashing the salty yellow liquid back onto his own body. Lifting the drenched hand to his muzzle as the stream peters out. Sniffing at the hot, briny piss, filling his nostrils with his own scent, gradually extending his tongue, pressing it against drenched fingers. Tasting his own liquid waste and slurping it from his fur. ‘fuuuck, what a filthy boy am I… wait. What?’ He blinks in confusion, pulling his hand away from his mouth and instinctively rushing to the sink to wash. ‘What the fuck was that about?’  He shakes his head as he scrubs, looking up at his reflection in the mirror, and dismissing it as an errant thought. ‘gotta stop watchin so much porn.’
His belly grumbles, and heads out towards the main room and kitchen. His mind slowly fogging into a lustful haze again, one paw slipping into his underwear again rubbing and fondling at his groin. Pausing only to unwrap and toss a few more frozen burritos into the microwave. His digits slipping down past writhing nuts, their tips petting sensitive taint, then dipping into his filthy tailhole. Slick with ass juices and sweat, the taught orifice seeming to suck on his probing fingertips. Interrupted by the beeping of the microwave. 
He grabs the plate and heads back towards his room, only to pause at Clay’s open door, a heavily stained jockstrap sitting ontop of the laundry catching his eye. A quick sidetrack, and Troy continues his journey. The elastic waistband hanging from his mouth as he sucks the grime from his roomates jock. Grinding his semi-erect cock against one palm and balancing his warm lunch on the other, as he treks back to his room and plops down in the computer chair.
Dark room:
“Yes yes, he pays rent here too… Well, we haven’t had this problem before… Okay… Tell you what, I’ll put out some info to start a committee about rules for the complex. Would that suffice? Well, as he is also a paying tenant he has the same rights as you to the common areas… Fine, I’ll leave a note for him at his apartment… Okay? Okay… thank you… yes and have a nice evening. Misses? oh, miss Trunksworth, my apologies.” Dr.Schiesser hangs up the phone, rubbing his temple, “Max? Look up what apartment a miss Trunksworth is in and put it on screen ten, I believe she might be good candidate for one of out clients.”
“Ummm, Trunk… trunk… here, Ellen Trunksworth, lets see…” The smaller rat clicks through a few things on the video bank, pulling up the interior of an apartment with a spandex clad elephant lady pouring some kibble into a dog bowl for the feral boxer-mutt at her side. “Here ya go boss. Dogs name is, Brusier? No kids, no husband, family in the midwest, works at a call center of some kind.”.
“She has a dog? Oh good… that’ll be perfect, I believe we do have a client looking for a kennel slut. Pull up her info so I can do an analysis against our known triggers. Now, how are the two boys doing, everything going well I hope?” The tall weasel turning his attention towards the main three screens, one displaying Troy’s room, one tracking Clay in the elevator, and one the main apartment. 
“Yeah doc, as far as I can tell. Troy, the cat, has been sucking on what appears to be Clay’s Jockstrap and edging himself. As far as Clay, the pony, chemical analysis of the air in the gym shows a high concentration of your concoction being expelled from his, err flatulence. Both appear to be uhhh…  ex… whatsit, err ex…” He smaller rat fumbles for a word. “Exhibiting behaviors previously unseen, in these subjects?” Prompts the doctor, he nods to himself, “Good. As expected, carry on.”.
The boys apartment:
Clay walks into the apartment, frowns at the empty box of burritos sitting on the counter. His empty box of burritos, which as far as he knew was just opened. He looks to Troys room, then back to the box. His eyes narrow, and he storms towards the scrawny gamer boy’s door. 
Troy looks up as Clay throws his door open, eyes going wide as the broad pony boy grabs him from his chair, before unceremoniously tossing him onto the bed. Unable to speak around the ball of fabric in his maw as his roommate climbs up over him. His own body betraying him as his cock tightens, stiffening as the fresh sweaty musk rolls off Clay. Was he into this? His body certainly seemed to think so. Being roughly manhandled by the buff smelly pony, thrown about and used as a sweat rag. Letting out a slight moan as a moist taint was ground into his chest.
Clay pauses his grinding, “Did… did you just moan?” he frowns, his own arousal making itself known. The flared head of his cock pulsing against his shorts. He leans over, staring down at Troy with a glint of cruelty and arousal in his eyes, “You like this? Little freak.” Grabbing hold of the gamer boy’s wrists in one hand and holding them above his head. Leaning over so his armpit is suspended right over Troy’s nose. 
The cat boy pants as he struggles to breathe with the heavy pony on his chest. The droplets of salty sweat catching the light, mesmerizing him as they sway at the end of the long fur under Clays arm. As they drop down onto his extended tongue, he realizes that he wanted nothing more than to serve as his roommates sweat rag sucking and licking every little drop of salty liquid from the deepest crevasses. Unable to catch enough of a breath to talk he simply licks his lips and nods in affirmation.
Clay squints at the submissive cat boy, then smiles deviously, “I worked up a good sweat in the gym today, how’s about you pay me back for the burritos by wiping me off.” Clay gets to his knees, lifting himself off the trapped cat boy. “Good, sit up.” He lifts one arm above his head, watching Troy expectantly, “Well, get to it.” 
Troy swallows nervously and follows directions, his mind reeling. Pausing to cast his gaze around, before reaching for a blanket from his bed. Stopping short when Clay grabs his wrist and turning his attention towards the dominant pony boy. “Nope. With. Your. Tongue.” The cat boys cock pulses with each word of his roommate’s deep voice, fresh precum wetting his already stained underwear. He nods and swallows again, failing to hide his excitement as he plunges his muzzle into the warm moist crack of Clays armpit. Mouth open, tongue out, pressing the pink muscle deep into the salty, hairy pit. Sniffing, filling his lungs with the scent of stale sweat. Eyes closed, mind reeling as his world collapses into nothing more than the need to engulf all Clay has to offer. Sucking, swallowing, snuffling, and moaning the sour salty sweat and hot moist heat of Clays underarm filling his senses. 
Clay relaxes into the tongue bath letting himself be pushed over. His free hand dipping down into his gym shorts, digits caressing the flared tip of his hardening cock. Sliding through the precum and sweat, his shaft pulsing with his quickening heartbeat. Closing his eyes, letting the sounds of the eager cat boy fill the silence. 
Troy pulls back to swallow, opening his eyes, panting and gazing down on Clays prone form. The sight of his cock poking out only exciting him more. He swallows nervously then scuttles around to the other side. Pressing his nose into the other armpit, wedging it open with his muzzle in search of more of his stink to consume. 
Clay smiles to himself, lifting his arm to oblige, continuing to massage his steadily emerging horsecock with his free hand. “Good little sweat rag. Get good and deep in there.” He grins as he grinds himself against his palm, shifting his shorts down further with each hump releasing a foul miasma of musk and body funk from between his legs. “That’s enough there. I got a better place for you.” Grabbing Troy by the scruff and dragging him unceremoniously down towards his groin. Smashing the slighter cat boys nose against his exposed sack, “Dry sweat was making my ball itch, clean em good, boy.” 
Troys heart stops as the scent of Clay’s sack overpowers the sweat already caked inside his nose. Heady virility and man stink rolling off the hefty orbs inside. Saliva fills his mouth in hunger, tentatively he extends his tongue. Pressing it flat against the taught sack, almost cumming as the flavor coats his tongue in new foulness. 
‘Damn, I shoulda done this sooner’ Clay presses the cat boys muzzle deeper into his sack. Forcing his nose to wedge apart his roiling nuts. Wet tongue wrapping under taught flesh, the tip seeking his taint. He obliges, shifting up his hips, shorts and jock falling down to his ankles at last. His free hand encounters something wet. Lifting the offending object to inspect, ‘wait… is that my other jockstrap?’ He looks down at the catboy eagerly polishing his nuts.
Troy kneels between Clays feet, sucking on the flesh at the base of the ponys heavy nuts. Swallowing down the salt and grit of his taint. He moves lower, tracing the ridge of flesh between his thighs. Probing, tasting, sucking, until he hits Clays asshole. He pauses, sniffing at the unwashed rim of the pony’s tailhole. His pause doesn’t last long, pressing his slobbery tongue against the filthy orifice. Coating his tastebuds in fart juice and evidence of Clay’s poor wiping.
The pony groans as he feels his most intimate of places touched by the cat boy’s tongue. A large dollop of pre welling from his cocktip and running down his erect shaft. “Ooof, you’re good at that but I got a better place for you right now.” He grabs Troy by the scruff, pulling him out from his shithole, a long thin strand of brown tainted slobber glistening in the light hanging from his mouth. Clay smirks, “I think it’s time for kitty to get some cream.” Pulling him down towards the thick, pulsing horse shaft. 
Troy gulps, struck by the enormity of the flesh pole stuck to his nose. Eyes crossed as they try to focus on the stream of pre flowing down towards his muzzle. Tilting his head to take the pearly white drip into his maw, the creamy, salty precum flowing over his past his teeth and coating his tongue. Kneeling to follow it up to the source, pink tongue pressed against the pony’s hot, pulsing shaft. Rimming his urethra and swallowing down the pearly gift from within.
The cat boy wraps his hands around the massive shaft, steadily massaging the towering pillar of flesh while sucking every jet and spurt of cock lube from the flat head. His eyes meeting Clay’s as he drools and jerks on the ponys cock. Ignoring his own painfully erect cock tenting the stained briefs he is wearing. His entire being dedicated to milking out every bit of his roommates seed.
Practically pissing precum into Troy’s eager mouth, he moans. Feeling his orgasm approach, each soft tug, each wet lick, every excited moan and suck from the cat boy dragging it closer and closer to the zenith. He humps himself up against Troy’s muzzle, grabbing him by the back of his head and forcing him down against the flared head of his cock. Gasping as the cat boy opens his maw to take it inside, the tight hot mouth finally tipping him over the edge. 
Cumming himself as he swallows the first large jet of cum, the second catching him off guard and he spits out the pony’s cock. The third and fourth arch over his face, coating his forehead and muzzle in pearly white cum. He puts his mouth back over the still spurting cock, managing to swallow down the gradually lessening jets of batter. Looking up through cum dripping eyelashes towards Clay’s panting face as the pony’s orgasm ebbs. Aftershocks of his own further moistening his already stained underwear. 
Dark room:
“Phase one seems to have been a success.” Max nods towards the video screen displaying the two boys panting and staring at each-other. “Humm? Oh yes. Good. They should sleep shortly, set the ambient suggestion emitters, phase two will begin tomorrow. You may leave.” He waves dismissively, “Oh and, Don’t forget to check the levels of gas before they wake in the morning.” Turning his attention back to the bubbling chemicals and papers in front of him as the rat practically runs out.
Apartment, morning:
Troy sleepily sat on the toilet of the shared bathroom, taking care of his morning business when Clay walked in. The pony’s eyes gleaming with wicked new ideas planted in his head while he slept. He picks up the cat boy, bodily moving him to the bathtub. “Open up kitty.” Unceremoniously exposing his cock and aiming towards the prone orange boy. He blinks in surprise, but obeys, coming to his knees in the tub, maw opening, eagerness and lust quickly replacing the sleepiness and confusion in his eyes. 
“Ahhhhh. Here, drink up.” Releasing an arc of piss onto Troy, the heavy scent of hot morning urine filling the air as the kitty struggles to keep up swallowing the torrent. Wasted piss overflowing his cheeks and washing down his body. Parting over the base of his rapidly swelling cock, to pool before flowing down the drain. 
The cat boy cups his hands under his chin to collect the golden bounty of pony piss he was being showered with. Swallowing the torrent as he is able, the salty liquid swiftly washing the taste of toothpaste from his teeth. Leaning forward to follow the dwindling stream to the flat head of Clays cock at the source. His tongue darts out to lick up the remaining drips, laying a quick kiss over the urethra before he starts to lick up the pooled urine from his cupped hands.
Clay grins, “Figured you could use a shower, let me give you some gel to go with that.” His hands slowly massaging the blood into his hardening shaft. ‘Eager little prick, fuck.’ 
Troy lays down in the tub, watching Clays bouncing fleshy shaft, eyes glued to the precum slowly welling from the tip. One hand grinding against his hardon, the other pressing digits against his tailhole. Working them in concert, unwiped shit lubing his digits entrance. Licking his lips as the pony’s pre starts to drip down onto his piss wet fur. 
Clay leans over, holding himself arched above the damp kitty by one hand on the opposite wall. “Wet pussy, my favorite.” His aching nuts roiling after the deluge of dreams while he slept, of which Troy featured heavily. “Sick little freak, show me how much you want it piss boy.” 
Troy had dreams of his own, and now they were becoming a reality. Used as a urinal by the big, strong pony, masturbating while being degraded. “I want it so bad… please. Cum on me, piss on me. Use me. Please, I need it… I, I, I deserve it. Please. Please.” He humps into his hand and plunges the depths of his asshole as he speaks. “I’m a dirty kitty. Please.”
The pair already overstimulated by their lurid dreams it doesn’t take long before they moan out. Cum spraying onto the prone form of Troy. Nearly simultaneous orgasms plastering already wet fur with pearly white jism. 
Dark room: 
“Well, phase two seems well underway doc.” Max says, not looking away from the monitor displaying the pair panting and staring at each-other in the bathroom. “Excellent, everything is proceeding as scheduled.” The weasel claps his hands together, watching Clay zip up and turn to brush his teeth as Troy lays in the bathtub continuing to play with himself. “The client should be pleased with the progress report.” He frowns, “I do hope that there are no setbacks when the pony goes to work.” Watching as the pony finishes up and heads out the door.
The apartment:
Troy lays panting in the tub, after masturbating to several orgasms. The cum and piss coating his body long sense cooled to room temperature. He stares up at the showerhead, all thoughts gone in the wake of post orgasmic bliss. 
Eventually he resumes his day, shower, breakfast, Clays sweaty jock from yesterday on his muzzle, digging the horsecock dildo from his bedside table. Lubing it up so he can sit on it all day while he streams. Grinding the rubbery shaft with his insides, stopping himself short of cumming. His second monitor displaying a rotation of the most raunchy porn he can find. His brain fried on lust as the subliminal messages do their work.  
On the garbage truck: 
The morning went by smoothly, Clay was unusually focused but still quite capable. His earbuds pumping suggestion laced jams directly into his brain. The actual work quite mindless, his body almost automatically working. Pick up the can, check for valuables, dump it in the hopper, onto the next. Absently stuffing interesting bits into his pockets and transferring them to a backpack on long stops. No one said anything as long you split your haul with everyone at the end of the route. It wasn’t until later in the morning that his other crew member noticed anything amiss.
“Hey man, you okay? Whatcha grabbing baggies of dogshit for?”, his partner called out. Clay blinked, catching himself stuffing a hefty bag into his pocket from the park cans, “What… Oh…,” ‘filling a bathtub with dogshit and fucking Troy into it’ “Thought it was something else.” He shakes his head, tossing the bag into the compactor, “Never mind, lets get going. I got some important stuff to do after work.” Climbing back onto his step and waving the driver on. The other guy shook his head, dismissing the odd behavior, they all had off days.
Dr.Schiesser’s Lab:
“Yes, yes. They should be ready by the end of the week… Changes? Well… depending on what I may be able to oblige within the timeframe... No… I’m afraid that I am unable to do a full transformation without adding at least another month… of course that is a lot of zeros sir. Well sir, these things take time lest we completely break the psyche of the subject… I might be able to program in a basic key phrase or two with little delay in the process… No sir, I’m not saying that it can’t be done, maybe a partial transformation? No, we can’t give either of them a vagina in that time without compromising what has already been done. Breasts? Maybe, let me run some numbers and get back to you, I can not promise on the size however… Yes, you will be hearing from me by this evening at the latest.” Dr.Schiesser hangs up, the phone, pinching the bridge of his nose, “Why do they always ask for last minute changes?” He sighs, “Max! Put in an order for the usual… extra estrogen this time. Oh hells, testosterone as well. I believe the last batch expired.”
Apartment late afternoon:
Clay returns from work, thankfully for the other tenants the elevator is empty on the way up to his floor. He stalks into the apartment, heading straight for the Troy’s room. “Hey sweat rag, I’m back from work… better get ready. Abruptly pushing open the door, he sees Troy already on the bed, mouth open, cock at attention, his chair still spinning. Clay grins, “Good little slut.” Unzipping his jumpsuit, releasing a miasma of pent up musk from inside the cloth. He climbs onto the bed, pushing over then squatting above Troys eager face.
Troys heart flutters as his nose is assaulted by the collected funk of Clay’s workday. He gags upon the fumes of stale sweat and ambient filth radiating from the pony’s crack. Lust driving him on, stretching his tongue out to lick at the ponys ponderously hanging nuts. The taste of sour, stale, salty sweat, coating his tongue, the sheer maleness of those seed churning orbs taking root in his mind. He lathers them in saliva, eagerly sucking the miasma of filth from the tender sack. 
He shudders pleasurably as Troy licks and kisses his nuts, “Mmmm good boy, get deep in there… it was a looong day.” Relaxing as the cat boy spit polishes his balls, “Fuck you’re good at that. Ohh...” He spots the base of the dildo in Troys ass. “Whats this?” He taps his fingers on the black rubber base a few times, smiling wickedly as he grips it in one palm. 
Troy shivers as the dildo vibrates with each tap, precum welling from excited kitty cock with each shudder. Moaning around the hefty orb laying against his maw, whining as he feels Clay grip the base. Humping almost involuntarily, the silicone shaft slipping slightly from his tight tailhole. Panting as it slips back in, mouth working overtime between thrusts to suck off and swallow down old sweat from Clay’s nuts.
Clay grins, “Aww, are you stretching yourself for me?”, slowly pulling the dildo from inside the cat boy, watching as the black rubber steadily gets more of a brown sheen to it. “Fuck that’s nasty… You forgot to clean yourself first.” Nostrils flaring as the scent of churned up shit wafts up from the uncovered shaft, “Or maybe you did that on purpose. Stink boy.” Releasing his rumbling gut, farting down onto the nut polishing cat boy as he reburies the dildo into his sphincter. *BRAAAAAAAPPPPP*
The cat boy moans as the dildo penetrates him, his open mouth catching the nuclear wave of hot gas from the ponys winking tailhole. Lungs filling with, moist, warm, somehow slimy gas. Mind at war with itself in arousal, and just how WRONG this was. His ignored cock jumping and spurting dollups of precum with each vibrating rapturous horn of gas blasted from Clay’s slimy shithole down towards his face. The stink getting earthier and earthier, progressively heavier waves of slimy wet, brown tinged gas threatening with what is to come. Stomach fighting his mind, wanting to retch with each snotty fleck of sphincter detritus ejected from the ponys intestines. And all he can think of is how much he wants more to come. Running his wet nose along the ponys rigid taint, tongue tailing behind until it bumps against the muscled ring of his asshole. 
Clay teases him, pulling and thrusting the rubber horsecock in time with pushing out more and more farts from his rumbling guts. Blasting ass down onto the eager cat boy. Watching Troy’s cock jump and flex with each release. He runs a finger idly along the cats tiny hard dick, pulling up a wave of precum along his fingertip. Sniffing at the slimy white substance before he takes an experimental lick. *BRAAAP, PFFFFFTTTTTT, BRAAAAAATTTTTT*
He backs off, staring up at the winking flesh ring in lust. Mesmerized as it flexes above him, pink and brown skin giving way to reds deeper in. Catching glimpses of a dark brown claylike mass in the dark depths of Clays shithole with each progressively wetter bassy roar. He shifts, pressing his nose up against the base of the pony’s tail, tongue extended to lay across the surprisingly soft doughnut of gasping flesh. Snuffling at the caked sweat in the fold of Clays tail, tight mounds of ass flesh on either side of his muzzle. The only breaths he can take, tainted with moist musky sweat and dirt or heavy foul shit. He braces himself mentally, as his heart pounds, ‘I need this, I need to taste his shithole, to eat his waste. I, I, I… I Need, NEED, NEED, HIS SHIT IN MY MOUTH!’  Worming his brown coated tongue into the slimy, flexing tailhole. Sticky, slimy butt mud immediately pasting the intruding muscle, coating it in snotty filth the texture of melted tapioca. 
“Here it comes mooch, least this way I get to eat my food first.” He bears down, asshole tenting as it bulges out under the pressure of contained waste. The rounded tip of excrement slowly eking out from his pursed doughnut. “Uggghhh, fuck, it’s a big one.” 
Troy gags as the slimy butt butter coats the inside of his mouth, slipping between teeth and down his throat. Swallowing the heavy dollup of mucusy shit butter before it chokes him. Feeling the dense  rounded tip from the torpedo of shit press into his tongue, its passage slicked by saliva and ass slime, and stop. Pinching the cats the brown stained muscle between it and Clays flexing shitring. The bitter earthy flavors of the Ponys protein rich diet fully flexing on his tastebuds. Mind awash in lust, breathing through his nose, saliva welling from deep within his throat as he purses his lips around the tube of shit and begins to suck. 
Clays cock pulses with each tug on the dense tube of shit hanging from his ass. The already heavy sweat, musk, and cum tainted air mixing with the overwhelming shit stink into a new morass of foul stench. Filling the nose of the lust drunk, shitting pony. One hand slowly massaging his own leaking precum over the titanic fleshy shaft of his hardening cock. The long wobbly sausage of dick meeting the cats own tiny pink cock with its broad flared head. Practically pissing precum from his urethra onto Troys already slick penis. All the while attempting to relax his sphincter enough the pass the football of fecal waste into the eagerly sucking maw of the cat boy below him. 
As the turd slowly slips deeper into the vacuuming maw of Troy. Stretching from Clays tented asshole down to Troys pursed lips, he reaches his hands up, digits prying at the thin flesh of the ponys clinging shitring from around the pillar of waste he was currently deepthroating. Humping his cock against the ponys own fleshy rod. Stomach recoiling at the monstrous mass of impacted scat forcing its way into his throat but mind afire with need, to be dominated by this massive shit, to have his throat fucked by it until it cums foul brown corn kernel sperms into his belly. To swallow and be sustained by Clays waste, inside and out, he was a cocksleeve, a urinal, a sweat rag, a shit hole, whatever Clay needed. 
With agonizing finality the turd is finally sucked from his rectum, followed by ropes of steadily softening crackling butt mud. Stomach visibly deflating as the pile of foul impacted shit coils on the cats neck and chest. He sighs in relief as a barrage of gas shoots a scattering of shit sprinkles and gut slime ontop of the mudslide, his aching turdcutter gasping as the deluge comes to an end. Catching his breath before turning to view the destruction wrought by his titanic shit, marveling at the eight or so inches of turd jutting from Troys mouth like a foul cartoonish cigar. He grins, shuffling around to point his cock at the jagged broken off end, “Looks like the toilet is clogged, let me plunge that for you.” Pushing down onto, and gradually into the hot, dense, fibrous pillar of gut brownie. The warm sticky, slimy noxious waste clinging to his shaft as he forces it towards where Troys stuffed mouth and throat should be.
Stomach roiling, mind whirling, his entire being at war with itself over how repulsed he should be, and how turned on he is. Troy breathes ‘fresh’ air through his exposed nose, unobstructed by the dense fur at the base of Clays tail. Ears and eyes covered by sloppy, sticky coils of scat, his senses of taste and smell overwhelmed by the sheer magnitude of the pony’s stench. Feel, his only functioning sense, warm, wet sticky. The pressure of Clay’s cock forcing its way through the cesspit of his face. Keeping his throat open as the heavy tube of shit slowly makes its way to his stomach. He wipes a hand across his face, collecting a palmful of the thick creamy shit. His other reaching down towards the horsecock dildo still embedded in his sensitive tailhole. Cramming the handful of shit against his aching cock, ribbons of crackling butt batter squeezing from between clenched digits. Pulling and pushing on the rubbery phallus, medial ring rubbing over his prostate as he feels Clays cock plow through shit into his maw, worming his tongue through the mud to press against the flat head of the Pony’s cock, the slimy texture of precum a welcome change to the silt like mass. Swallowing as he is able, clearing his muzzle with the aid of Clay’s plunging cock.
The warm slick shit embracing his cock as he thrusts it into Troys mouth, fucking himself into the fibrous swamp obstructing the cats maw. Silence, except for the slick squelching of the sticky shit as Troy is spitroasted by horsecock. Feeling the vacuuming mass loosen as it slides down the cats throat, filling his belly with used food. He thrusts a few more times, then pulls out. Cock still very much coated in his own spackled on shit. Troy gulps air below him, finally able to breathe through his mouth again. Clay moves around the filthy cat, slapping his hand away from the rubbery dildo. “Time for the real thing.” He pulls it out, marveling as it emerges, the black rubber coated with more and more sandy brown as it reaches the tip. Grinning as he measures it against his larger cock, “Bit small, well, lets get you molded to mine.” Lining the tip of his cock up against the cats gaping tailhole, and pressing in. Passage aided by their combined shit. 
Troy exists in a state of bliss, whimpering as he feels the dildo removed, moaning as its replaced by warm flesh. His cock pumping out a long spurt of pre as Clay pistons his own inside, flared head and medial ring slipping past his prostate in order. Cumming as the pony hilts himself inside, feeling more full than he ever before. This is what he was made for, to be used, to be fed, to be FUCKED. Moaning as his overstimulated prostate is mashed with each thrust and pound of Clay using him. Spurts and jets of brown tinged cum shooting uselessly into the air from inside the clenched fist of his shit filled hand as Clay finishes inside him, overburdened pony nuts emptying buckets of cum into his intestines. 
Dark Room:
“Well, they aren’t getting their security deposit back.” Dr.Schisser smirks, “I’d say this was a success, they should still need a few days for their new arrangement to settle in completely.” He turns away from the monitors to the rat, “In the meantime Max, continue to monitor the levels of agent.” Rubbing his forehead, “And remind me to contact the client this evening with the new time table to adjust for his… requests.” Taking a moment to peer down at his phone, “Apparently, I have to take a meeting with our Ellie about this AoA, as she’s calling it.” Tutting, “Please take care of the ponys work, a simple letter of resignation should suffice… As for the cat, arrange the police to contact his parents sometime soon. Have them make up an excuse to delay sending his effects for a few months so they can be decontaminated.” He smiles, apparent mirth failing to reach his eyes, then turns to exit the room.
The End