What Happens in a Dorm...

Story by Serathin on SoFurry

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A commission for Dark-Anthro over on FA


It was a rather chilled day on the University campus, snow had fallen not more than a few hours ago and as the temperatures continued to drop the bundled up students quickly returned home to their warm dorms for the night. Such was the case for Nightpony, the young anthro hurrying into the lobby of their building. As the anthro pony acclimatized himself to the warmth of the inside he took off his winter jacket and hung it on the steel relief of the Sibergon Labs logo, the nearby testing facility that paid for several of the buildings on campus. "That cold is brutal." He said to no one as he rubbed his hands over his midnight black horsehair.

As Nightpony got into the elevator his jacket started to buzz, grabbing his cell phone out of it as he set his backpack full of books on the floor. "Hey Leo." He said as he pushed the button for the third floor. "Yeah, I just got back for the day. Dinner? Sounds lovely. Alright, I'll see you when you get back, I'll leave the door ajar for you."

By the time the pony had finished the call the doors opened, leading into the hall that housed the students' individual rooms. Normally he would have had up to three other roommates that he had to share the space with, but thanks to the new buildings a number of students, including himself, had been moved to private rooms. Even though they were a bit on the small side they still had little nooks for kitchens and their own bathrooms. As he got to the door he slid his identification card through the door, which made a happy chirp before the mechanism unlocked and allowed him inside.

"Do I have time to shower..." Nightpony mused to himself as he looked through the mini-fridge of food he had to make sure he had something for him and Leo to eat when the alicorn finally arrived. Most of the stuff he had was college food, which meant he could just pop it in the oven or microwave and do other things until it was done cooking. After a bit of mental back and forth he finally decided upon the lasagna, pulling out the frozen dinner and tossing it into the microwave to cook.

With the food situation under control Nightpony decided to at least slosh around in the shower, not only to help warm up his still cold body but get rid of the grime of the day. He grabbed one of his towels and left a note on the wall in case Leo showed up right away, then went into the bathroom and popped on the water. Steam began to pour out as the water quickly reached the desired temperature, Nightpony stripping down to nothing before stepping inside and letting the streams cascade down his obsidian mane. It was a good way to quickly unwind after a hard day of classes, he realized as he stood there for a few minutes, the stress washing away so that he could more fully enjoy his time with the alicorn.

Unknown to the pony he was not alone in the shower, something oozing out of the drain next to his feet. The unknown creature was about eight inches in length, its shiny body a tube that looked a lot like a slug. The strange creature had been wandering unchecked through the plumbing of the building ever since its recent escape from the nearby facility, finally happening upon a living creature as it felt the warm water push against his hidden body. Now that it had emerged it could sense the life force of the pony, the creature eager to carry out its preprogrammed task as it began to slither up the unsuspecting man's leg.

Nightpony stopped in the middle of washing his mane, turning around behind him as he thought he had felt something brush up against his calf. But when the pony looked back he saw nothing, though anything other than a cursory look would have seen the shiny black thing hiding out in his fur. When he went back to his shampooing the creature slowly moved again, trying to move with the streams of water that raced down the naked fur's body as he inched closer and closer to his goal.

Finally after fifteen minutes Nightpony finished the last of his shampooing, moving to rinse the last of the soap from his mane. The alien creature had patiently crawled forward to not arouse the pony's suspicion, finally resting just underneath his tail. Before the water was turned off the latex snake made its move, pressing the tip of his slick body against the tight ring of muscle of the black pony's tight tailhole.

"What the..." Nightpony muttered, bringing his hand to his flank as he felt a strange discomfort in his backside. The creature had nestled itself into his fur though, and his initial sweep found nothing as the black snake-like body continued to push inside. With every inch of progress it made it secreted a slime that helped eased the passage inside, though as it got to the thickest part of his center the intrusion was impossible to hide.

As Nightpony made another pass over his rear he let out a gasp as he felt the alien creature wiggle inside him, which turned into a scream as he became keenly aware of it. By the time he figured out what was going on it was already halfway inside him, pushing into him relentlessly as he slammed against the shower wall. His hands tried to grip the creature, but with the water still cascading down his body and the slick nature of the latex skin made grabbing it next to impossible. The pony let out a loud gasp as he felt a wave of pleasure permeate his body, the creature sensing his new host becoming fearful and seeking to placate him.

Nightpony struggled to catch his breath as his knees buckled slightly, holding onto the wall as another spasm of pleasure wracked his body. His equine member pressed against the wet surface as the stimulation caused it to grow erect, sliding up and down as he felt his insides begin to shift. His weight shifted and he fell backwards as his hands slid to his bloated stomach, which began to recede as the latex creature assimilated his insides. As his back slid down the stall he watched as his already erect member began to throb even more, and right before his eyes it began to swell and grow even bigger.

"Someone... help..." Nightpony said weakly, the pleasure intensifying as his six inch cock swelled to eight inches, then a foot... swelling so wide that as he put a hand on it he could bearly touch his fingers together. As his hips bucked up involuntarily a small spurt of clear pre dribbled down his thickening length. Inside his body the latex slug had begun to perform its preprogrammed task, tendrils burrowing and assimilating the nearby flesh as it immediately began to grow towards one point in particular. When they reached their destination the black equine let out a gasp, digging his fingers into the wet floor as his balls began to swell.

All Nightpony could do was keep conscious as the rubbery creature continued to pleasure him, his chest heaving as his cock continued to leak an increasingly thick ooze. Right before the horse's eyes his pre turned from clear to grey, then to black as it continued to dribble down and coat his tool. His back arched as his face was frozen in a gasp of pleasure, feeling something crawl underneath the skin of his back, the expanding creature's tentacles nestled just underneath his shoulders and on either side of the small of his back. They pushed against his hide, Nightpony's body shuddering as the black latex tentacles merged with his flesh as they pushed outwards and slithered up against the wall.

"Gah..." was all the equine could gasp out as he tried to get up, instead only sliding down to the shower floor as his huge member continued to leak black fluid onto his body. His cock was so sensitive that every drop of water on it made him shudder in pure bliss, causing more of the corrupted seed to rain down on his body. Every glob of latex cum that fell on his fur stuck, absorbing into his body and coating it with a shiny layer of black. It dug into the layer of fat in his body and burned it away, transforming it into pure muscle as his body began to alter his basic frame.

As the black latex began to spread down his legs both inside and outside his body he could see his calves and thighs expanding, almost inflating as new 'muscle' and power filled them. The stall was quickly becoming cramped, the still lengthening tentacles on his back wrapping around to the front of his body. Nightpony's already pleasure-filled psyche was pushed to the limit as two of the tentacle tips began to play with his nipples, coating them in black latex as the one of them began to slide and stroke up his latex-covered cock. Even though they were connected to his body the equine had no control over the lustful tentacles, especially as the last one began to take the excess latex that had pooled on his now washboard abs and began to spread it all over his body.

Nightpony felt his chest heave with every breath as the alien material slid up it, a low gurgling noise coming from his throat as he felt his pleasure coming to a peak. His hands, guided by the tentacles, stoked faster and faster over his cock as black latex began to leak from his mouth and nose. The tentacles that were no longer needed to pleasure his cock found other targets instead, one of them causing the equine to let out a watery gasp as it slid into his tailhole while the other one slid into his mouth. His latex coated rump and mouth stretched easily around the thick tentacle, the strange appendages equally as sensitive as his cock as the intrusion caused more of the liquid latex to flow out of the orifices to coat his body even further.

His rubbery hips slapped rhythmically against the wet shower floor as the last of Nightpony's flesh was assimilated, the black fluid dripping out of his ears and eyes as it coated the inside and outside of his skull. As the latex coated his brain his body shuddered, his inhumanly long tongue wrapping around the tentacle halfway down his throat to stifle his scream as he came. The thick latex cum fired out of his huge cock in jets, the blackened seed running off his already corrupted body and washing down the drain.

After a few minutes the creature stirred, its shiny black body shuddering as the tentacles embedded deeply in his body began to withdraw. His solid back eyes slowly opened, an alien intelligence gleaming behind them as the rubberized equine slowly stood up. One of the now free tentacles went over and turned the knob on the wall, causing the water that had been rinsing his latex covered skin to cease. As the creature walked over to the mirror he turned his head and looked at himself, his solid black eyes gleaming with alien intelligence as well as the old personality that was there before. He smirked, then walked out into the main room to prepare for what was to come next...

**************************************

Several hours later a black alicorn walked through the halls of the dorm, managing to get past the initial security of the front door by entering the same time as someone else. While he was excited to see the other equine he was also a bit concerned, he had tried calling the dorm several times as well as Nightpony's cell but got nothing in response. When he got to the door he found it slightly ajar as well, though that part wasn't too strange as the pony had told him he would do as much.

"Hey... Nightpony?" Leo asked the empty space as he stuck his head into the door. Nothing seemed out of place, except for a few puddles of water on the floor leading out of the shower. He slowly walked in and closed the door behind him, moving over to the tiny table in the corner and setting down the bags of snacks and sodas that would serve as their after dinner treat for the night. As he unpacked the food he couldn't help but wonder where the other male had run off to, especially since he was providing the sustenance for the night.

A sudden touch against his right thigh caused the alicorn to spin around, startled by the sudden contact as he looked around the floor for the possible perpetrator. When he saw nothing he began to wonder if perhaps he just imagined it, thinking that way for a few minutes before he went back and turned his focus on the food once more. A few seconds after he started though he was touched once more, this time on his outer thigh as he whipped his head around once more. "Who's there?!" He demanded, looking just in time to see the curtain of fabric around the bed shift ever so slightly.

"Heh, nice one Night." Alicorn said, his fear draining away as he knelt down beside the bed. "You really had me going the-"

The black alicorn didn't even have a chance to finish his sentence as something black and shiny darted out from the bed, hitting him square in the face and pushing him back onto his butt. He tried to scream out, but it only allowed the thick tentacle to push into his open mouth, effectively gagging him as the shiny substance began to creep over his muzzle. In no time his entire face was covered, Leo's eyes widening as he felt two small tendrils push into his nostrils and provide him with air.

Once the initial shock wore off Leo tried to pull the tentacle off of his face, his body thrashing around as it was slowly dragged back towards the bed and lifted into the air. Two more tentacles came out from below the bed and quickly wrapped around the struggling alicorn's wrists, pulling them to the sides as he was brought down onto the bed with a soft thud. By this time the alien material, which smelled faintly of rubber musk, had covered his head all the way to the ears, blocking his sight as the tight material suctioned itself to his head. The tentacle had also caused his throat to bulge as it continued to travel down into his body, the already black fur of his neck beginning to turn glossy.

Leo could feel a weight on the bed next to him, as well as several more of the shiny appendages slithering along his body as they made short work of his clothing. As his vision began to return he could see the vague outline of an equine shape with shiny skin hovering over his body. The creature looked vaguely like Nightpony, he realized even in his terrified state, and seemed to possess the same knowledge that he did as the tentacles rubbed over his most sensitive areas.

The alicorn tried to speak to the creature, but with his mouth sealed by the thick latex the most he could manage was a muffled moan. He could feel the creature's thick cock press against his stomach, his own beginning to react despite himself as one of the latex tentacles began to rub and stroke it, coating it with a thin film of the shiny black substance. As Leo stared into the solid back eyes of the alien equine he suddenly felt the latex that had coated his ears begin to push into his skull, a strangely painless process as the invasive substance slithered passed the bone and began to coat his brain.

Suddenly Leo's eyes widened as he saw images flash before his eyes, seeing a room with bright white walls and being surrounded by clear plastic. It appeared to be a lab of some sort, and as he watched the image suddenly shifted as though whatever he was looking through was being moved. There was a sudden fall, he could hear someone shouting as the vision suddenly moved away from the broken plastic to a nearby vent. From the vent it moved to the bathroom, falling into one of the drains and moving through a nearly endless maze of pipes before Leo saw a vision of a black pony in the shower, slithering up his leg before entering his body to begin to the process of what it was created for...

By the time the images faded Leo found that the creature had become rather insistent, feeling one of the tentacles prodding against his backside. He looked down and let out a muffled grunt of surprise to see that it had grown, jutting out proudly at nearly a foot in the air and completely coated in a layer of the black latex. The material did nothing to dull the sensations he felt, in fact as a tentacle curled around his shaft he found the pleasure to be moreso then anything he had ever felt before in his life.

The latex equine that had been Nightpony looked down at his prey as he watched the alicorn's body posture turn from frightened to slight enjoyment, his hands and tentacles hitting every pleasure spot he could to ensure that the newest conversion would be a pleasurable one. The black latex 'mask' had completely surrounded Leo's head all the way down to the neck, the tentacle still pushing further and further into his body as it stretched the muzzle unnaturally wide. The alicorn's chest had also begun to puff out, the latex assimilating the muscle and adding to it until he had a set of pecs and abs that most athletes would kill for. But the process was not nearly complete, the creature realized, there was still a bit of resistance left and that simply would not do for his plans at all...

Leo's hips arched as the tentacle that had been pushing in between his cheeks finally decided to make its move, pressing against the latex coated ring of muscle and pushing up into his insides. There was nothing the alicorn could do as he felt the rubbery appendage fill him, his legs were pinned by the weight of the latex pony and his arms were still bound by the tentacles that had wrapped tightly around him, the fur underneath them turning shiny as the muscle began to swell from the corruptive fluids it absorbed. By this time Leo's head was swimming in lust and pleasure, his overstimulated body making it hard for him to even think full sentences much less any means of escape. A growing part of him didn't even want to escape anymore, basking in the rich feelings of pleasure he got from the tentacles and creature as his body and mind were converted by the black latex. The appendage inside him felt so good, rubbing deliciously against his insides as his cock throbbed every time it rubbed against his prostrate.

There was a small pause before the tentacle that had been inside his tailhole was slowly withdrawn, Leo moaning against the tentacle in his mouth as he found himself with a feeling of emptiness inside himself. It did not take long for that to be rectified however, Nightpony shifting his body down and positioning his huge, rubbery cock against the already stretched opening. At this point Leo's will had become so eroded by the constant assault of pleasure that he no longer cared what was happening to him or what happened to his mate, all he wanted was that creature's huge tool filling his body. The creature seemed to sense his newfound eagerness and obliged him by pushing his hips forward and popping the flared head inside him, causing Leo's cock to spurt a small jet of black seed that landed on his still shifting abs and created a shiny patch of fur that began to spread outwards.

The two tentacles that had bound Leo's wrists slowly unwrapped themselves from the alicorn's latex-coated arms, no longer needing to bind him as they moved to his nipples and began to rub against them. Leo's entire body shuddered as it succumbed to the rubber, feeling nothing but pleasure and ecstasy as the pony between his still fleshy legs began to slide in and out of his tailhole. As Leo began to buck his hips back to try and fill himself even more he felt something squirming under the skin of his back, four spots of fur turning to latex before spreading outward as lumps began to form there. The corrupted alicorn gasped into the tentacle in his muzzle as four slick rubber appendages sprouted from his back, just as sensitive as his own cock as they slithered out into the open air before latching on to Nightpony's body.

Nightpony was too focused on his cock spearing the alicorn beneath him to see as the newly formed tentacles wrapped around his bicep and waist, though he definitely felt it as two of the more adventurous ones poked around his empty orifices. A knowing grin crossed the latex creature's face as he opened his mouth and wrapped his long tongue around it to draw it in, rewarding it with pleasure so that it will instinctively seek out the muzzles and tailholes of others in the future. At the same time the second one took the cue from the first and pushed its way into his tailhole, causing the rubber-covered pony to buck forward and bury his own cock deeper into the alicorn.

Black fluid began to drip out of Leo's mouth as the thick layer of latex around his mouth split, his tongue stretching out as it twined around the tentacle that he suckled on. He was no longer the creature's prey, his body and mind had been fully corrupted and now they were merely two rubberized equines with their tentacles in each other's bodies. As the last of the latex assimilated Leo's feet he could feel the body above him begin to tense up, the twin pleasure of thrusting into every orifice of the rubberized alicorn and having completed its purpose pushing him over the edge. The torrent of fluids pumped into Leo's body were quickly absorbed, adding to his mass as his muscles thickened even more.

As Nightpony slowly withdrew his back tentacles from the new creature underneath him he took a second to admire his handiwork. What was once a decently-sized alicorn before was replaced with a ripped latex equine with a huge cock and several tentacles writhing from his back that were still wrapped around his body. As the equine slid his own member out from Leo's hole he suddenly found himself lifted up, the solid black eyes of the alicorn staring up at him as Nightpony found himself pushed up against the wall. The tentacle that had been content to push around the pony's mouth suddenly pushed down deeper, causing Nightpony's throat to bulge as he tipped his head back to allow more of the tentacle in.

"My turn." Leo said, his voice deeper as he got up from the bed. There was a grin on both their faces as their original personalities began to bleed back through, the need to convert and spread temporarily satiated. The alicorn withdrew its tentacle from the pinned pony's tailhole, using it and another to keep Nightpony up against the wall. It took a few seconds for Leo to get used to his new stature, his body at least several inches taller as he pressed his sculpted pecs against the pony's and nibbled against his neck. Once he had gotten the height right Leo slid his massive member into Nightpony's tailhole, both of them letting out a moan as he easily penetrated the already stretched latex hole.

Nightpony gripped the latex shoulders of his mate as his insides were spread open by the huge cock while Leo reached around and grabbed one of the pony's flailing tentacles. The pinned equine let out a stifled grown as the alicorn guided the tip to his own mouth, Leo's tongue slithering out of his maw and wrapping around it before drawing it in. The pleasure caused them both to shudder, their remaining tentacles wrapping and stroking each other's slick latex bodies as Leo grabbed Nightpony's cock and began to pump up and down as he thrust his own into the pony's hole.

As the two began to succumb to the sheer bliss of their new forms, Leo rhythmically pounding his entire rubber tool into Nightpony's tailhole as their bodies and tentacles rubbed and prodded each other, a nagging desire began to resurface. They knew there were others in the building, more viable candidates to enhance and convert. Their own lusts could stifle the urge for now, but they knew it wouldn't be too long before they would add to their brood. As their black eyes looked at each other, muzzles stretched wide with the other's squirming tentacle, they realized that the prospect was perfectly fine by them...

**************************************

Anthony grumbled as he clamped the headphones he had been wearing, trying to drown out the noise from the other room as he attempted to focus on his studies. While he knew that living in the dorms wasn't exactly going to be a sanctuary of peace and quiet, the two that had been going at it in the room next to his had been going on for what seemed like ages. While there had been a few instances before this when his neighbor had been rowdy, but usually they kept it down enough for him to concentrate. When one particularly loud bang nearly knocked his computer over the horse decided that enough was enough and got up to walk outside.

"Can't believe this..." he muttered as he walked out of his dorm room in his pajama pants, moving over to the next door. At first he had considered getting the RA involved, but he decided it would be quicker if he just handled it himself. At 6'3" and nearly two hundred and fifty pounds of muscle, the horse figured that his statue would be enough to drive the point home to shut the hell up as he knocked on the door. "Hey! Will you two-"

Anthony was slightly surprised when the door swung open from his first series of knocks, which quickly turned to shock as his jaw dropped from the sight. He stood there frozen in the threshold of the door for a second, then when he recovered himself turned to bolt out of there. Before he had even managed to take a step several black tentacles wrapped around his wrists and ankles, bringing him down to the floor in less than a second. He tried to yell as his hands gripped the doorframe, but another, thicker tentacle took advantage of his open mouth as the horse struggled to stay out of the room.

The last thing that could be seen from the hallway was Anthony's hands as they let go of the wooden frame, the door slamming shut behind him...