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Awaking with a start, Casey bolted upright in his bed and glanced around frantically, not immediately recognizing his surroundings. The last few days had been incredibly tumultuous what with his recent transformation and because of the possibly contagious nature of his condition he had to flee the normal population to avoid possible quarantine. The doctors had determined that he wasnt contagious through a number of tests, and this was fortunate because it made him much more employable to those who wished to experience the exotic without fear of irreversible transformation.

At this point Casey more or less had the hang of talking around his immense cock-tongue, at least when it wasn't erect, like it was becoming now along with his thick horsecock through a serious case of morning wood. The doctors had said that it was mostly useless to try to repress his arousal, and that the only way for temporary relief was to give in to his new, primal needs.

Casey bustled to the shower in his room, clopping loudly on powerful equine hooves. Inside the bathroom, Casey saw himself in the full length mirror and marveled at his incredible new physique. Standing at nearly seven feet tall, his powerful black furred frame providing a stark contrast to the mottled pink horsecock sitting proudly between his legs, about a foot and a half in its partially erect state.

His blocky equine muzzle was partially parted by a rapidly growing horsecock, his cock-tongue beginning to emerge and reach an astonishing foot in length. It just felt so damn good, he moaned softly around his cock-tongue, and the slight vibrations encouraged it to spit out a fat dollop of precum. There was no turning back now, the only hope to diminish his raging erections and restore any amount of vocal freedom was to give in.

As water rained down on him from the shower head, Casey began frantically stroking both of his shafts, only a few more minutes passing before the already white walls of the bathroom got a serious touch-up on their paintjob.

--

Emerging from the shower some while later, Casey heard a knock at the door to his room and quickly threw on some clothes, a comically skimpy pair of latex briefs that could do nothing to conceal his enormous member and a thick rubber collar serving as the work uniform for his new occupation.

Casey's new caretakers had offered him quite a simple proposition; free room, board, food, and incidentals in exchange for his participation in a wide range of carnal acts with wealthy clients eager to for sexual experiences that the normal human population could not provide.

It wasn't a bad setup at all, it was incredibly rewarding work and without the sexual outlet taking care of his new body's needs alone would be quite the ordeal. So far he had only had a couple clients but from what he had been told so far his impressively sized cock-tongue was all the rage.

Hurrying over to the door in his work outfit, Casey opened the door to reveal a tall, brindle female hyena sporting a pair of hefty, pornstar quality tits that were threatening to burst free from the, frankly, ridiculous black latex bikini that she wore. It was Aimee, one of the other transformed individuals who was watching over him as he got acclimated to his new living situation.

"Casey!" she exclaimed, her bountiful breasts bouncing heavily and she hopped up and down excitedly, giving him a big hug. Just looking at her wonderfully curvaceous, womanly body made his cocks start to firm up again but he pushed the thoughts away and returned the hug. He wasn't as adept at controlling the urges of his hyper-sexualized new body as some of the others yet but nobody seemed to mind him sporting his magnificent two foot equine member at any time. In fact, it had already resulted in several favorable encounters.

"Hope you're settling in well," Aimee continued, "remember to let me know if anything in your quarters isn't to your liking and I will see that it is sorted out! We take care of our own here, and spare no expense!"

"Ah, sure thing," Casey replied, averting his eyes so that he didn't get all riled up looking at Aimee's body.

"Oh, and we have a very special client coming in for you today!" Aimee started as she grabbed Casey's large, semi-hoofed hand and started leading him down the hallway out of the living spaces and towards the heart of their business.

"It's going to be quite the experience," she continued, "You have been stabilized and are no longer contagious, but since your transformation was so recent there is a chance that we will be able to make you temporarily contagious with a new drug that we've been working on. It isolates the mutagens in your body and causes them to concentrate in your sexual fluids."

They turned a corner and came upon a long hallway of what looked like medical examination rooms.

"Your client today is paying top dollar to go through a transformation of her own and her first choice was, coincidentally, a mare!"

Aimee opened a door to one of the doctors offices, and inside was a tall, lean, and very twinkish looking snow leopard dressed in scrubs.

"Now, as a warning, this drug is highly experimental and there may be some strange side effects during your client's transformation but she has been briefed on the situation and is willing to go through with it. What do you think?" Aimee asked as the snow leopard began taking Casey's blood pressure, temperature, and other vital signs.

"I mean, sure," Casey answered, "I'm not going to change any more am I?"

Aimee breathed in loudly through her teeth "Well, it is unlikely, but there is some transfer of genetic material between the person transforming and the person transforming them. It is possible to catch a secondary infection of the virus but it shouldn't alter you very much even if it does happen."

Casey shrugged. "Then yeah, I'm up for it." He didnt really care at this point anyway, his employer would take care of him and there didnt seem to be much else that could change-- he was already half horse with a two foot equine shaft and another one taking the place of his tongue.

"Great!" Aimee exclaimed giddily, before abruptly pricking Casey's arm with a syringe and injecting a dark colored liquid. "There we go! You should be contagious again in about an hour, and itll last for 4 or so more hours so I would suggest just staying in the room with your client till we determine its safe for you to come out. Now hurry downstairs and get to room 212 before it kicks in!"

With that the voluptuous hyena sauntered off down the hall and the snow leopard who had given him his rudimentary physical followed suit.

Standing up and feeling slightly dizzy for a second from the shot, Casey left the room and headed quickly for the elevators to get downstairs to the private rooms. On the way he ran into a silver dragon man by the name of Mark that he had had a steamy encounter with the day previous.

"Casey!" Mark shouted out to him across the hall, "Heard you get to transform someone! Enjoy, there's nothing like it! That's a very coveted duty that they gave you, have fun I'm sure you'll do great!"

Casey smiled back and muttered a thank you that was slightly muffled by his cock-tongue which and started to thicken as he reminisced about his experience with the dragon the other day. The dragon had a twin pair of ridged draconic shafts that had driven Casey absolutely wild.

Finally Casey came upon room number 212 and hesitated briefly before he reached for the knob and opened the door. These were the VIP rooms, and plush purple silks and other finery adorned the entirety of what might have been the nicest bedroom Casey had ever seen.

His client wasn't here yet and the drug probably hadn't kicked in all the way, so Casey just laid down on the bed and waited for his client to show up, cupping his equine cock that was already starting to strain against his latex undergarments as he anticipated the events to come. His member was almost entirely erect and his cock-tongue was sticking nearly a foot out of his mouth when the doorknob finally moved.

In walked a short, inconspicuous, slightly mousey looking human girl with brown hair. She couldn't have been more than five foot and her small A cup breasts were nothing to look at. She looked timid, almost like she wasn't sure if she was in the right place. When she saw Casey laid out on the bed, all black fur and muscles, his enormous cock busting out of his latex undies, and foot-long cock hanging out of his muzzle her eyes went wide.

"Y-y-you're Casey?" she asked, voice shaking.

"Yesth," Casey mumbled as best as he could around his cock-tongue. Precum dribbled heavily out of the tip, an unusually musky aroma rising from it that Casey took to mean that the drug was working.

"I'm, uh, Jen," she said, fidgeting with her fingers. "I'm the one who wanted to, uh... become like you."

Casey just nodded and climbed off the bed, walking up to Jen on his powerful black hooves. She practically trembled as he approached, his massive frame towering almost two feet above her. He picked her up into the air, his mammoth shaft tearing apart his underwear as it came to full attention.

Jen gasped in surprise at the sie of his member, straddling it with her legs as he held her tight against him. She was then face to face with Casey's cock-tongue, the musky odor of his precum wafting into her nostrils and beginning to make her aroused. She grabbed on to his latex collar for support and pushed her face forward, stretching out her tongue to tentatively lick his dripping tip.

The second Jen's tongue came into contact with Casey's contagious precum she let out a soft moan, her eyes rolling back in her head as the virus began to affect her almost immediately. Holding tightly onto Casey's collar, she took the first couple of inches of his cock-tongue into her mouth, suckling hard on his cock-tongue tip to try to get as much of the sweet bounty within as possible.

Casey was taken aback for a moment by how quickly the formerly meek little woman dove onto his tongue cock but once she began to suck on his length he could just moan around his cock tongue as it leaked more and more corruptive pre into Jen that she swallowed eagerly.

As Jen consumed Casey's infectious precum and continued to suckle on the last couple inches of his cock-tongue, her face started to push out into a short equine muzzle, allowing her to pleasure even more of his tongue with her new mouth.

Ears migrated to the top of her head and a short coating of dusty brown fur began to spread across her entire body.

Casey carried her over to the bed, laying her much smaller frame down underneath him as he thrust his tongue cock in and out of her eager mouth. His massive equine length down below had no hope of fitting in Jen's smaller, mostly human body but he hoped that problem would be fixed before long.

Jen was nearly choking on Casey's cock-tongue but her longer equine muzzle finally allowed her to fit it's entirety and she met with Casey's muzzle for a kiss around his tongue.

Casey's massive equine shaft ground against Jen's lower body, and after a couple minutes of having his cock-tongue stimulated so fully he let out a loud, muffled moan as he felt his tongue cock begin to ejaculate.

Her mouth already so full of tongue cock, Jen could barely handle the sudden flow of infected equine spunk that began to shoot down her throat but she clamped down on the cock-tongue invading her muzzle and gulped down everything at she could.

Her entire body began to tingle with change, the sudden deluge of infected cum sending her transformation into overdrive. Her modest A cup breasts ballooned out quickly, reaching a DD in no time which looked almost comical on her tiny frame. But that frame was growing quickly, her hips widening and body lengthening.

Jen's feet began to shift, black toenails quickly overtaking the rest of her feet and turning them into large, broad black hooves. With slight discomfort, a long brown-haired equine tail extended from her rump that grew and expanded into much more womanly proportions.

His cock-tongue spent, it slowly began to retract back into his mouth but the massive equine length rubbing against Jen's body, smearing her new brown fur with his cum had different ideas.

They looked into each other's eyes, Jen licking the remnants of his last climax from around her cute muzzle and nodded slightly to him.

With permission granted to finally try to attempt to fuck her properly with his regular shaft, Casey pulled his hips back and placed the head of his two foot member at the already surprisingly wet entrance of Jen's desperate new equine pussy.

Slowly he applied pressure, and Jen cried out as she began to be parted by his mammoth cock.

Unknowingly, Casey was also under the effects of a strong female pheromone that was being emitted from the newly corrupted sexual fluids that Jen was producing. His body began to tingle slightly, a sensation he was familiar with from his own recent transformation, and as he began to work his cock into Jen inch by inch, making her wriggle desperately for more underneath him, Casey's firmly muscled pectorals began to fill out with more supple flesh.

Within moments Casey had a pair of breasts that rivaled Jen's own and showed very little sign of stopping. Casey moaned out in pleasure as Jen tweaked the nipples of hir new breasts, hir cock-tongue finally flaccid enough to allow for normal speech. "Dear god, what's happening to me?" shi gasped in wonder.

"Hopefully the same thing about to happen to me, Jen replied simply as another 3 inched of thick equine cock entered her tight pussy abruptly. Casey was encouraged by Jen's eagerness and willingness for the transformation, and began to rut furiously with hir new partner, making Jen go limp with unbounded pleasure as her cunt was pummeled by Casey's thick shaft.

Jen was speechless, unable to utter a sound as she was mated so furiously, only letting out the slightest gasp of pleasure as a large bump began to form above her abused netherlips. From nothing to something in seconds, an enormous horsecock erupted from hir groin, reaching a foot and a half within moments.

Casey was astounded by the sudden growth of Jen's cock, and the impressive size of the testicles growing in to accompany it. Thankfully, even as Casey fucked Jen's pussy ragged shi was able to lean hir muzzle down and take the tip of the new cock into hir mouth. Hir cock-tongue provided some obstacle, but the feel of equine cockflesh on equine cockflesh was indescribable.

Crying out as hir brand new cock was stimulated for the first time, Jen bucked hir hips into Casey's muzzle as shi continued to thrust mightily into hir. Unable to handle the dual stimulation of being fucked by Casey's enormous two foot pole and having hir own gargantuan length sucked, Jen let out a loud whinny as shi climaxed simultaneously from both of hir sexes-- pumping hir infectious seed like a firehose down Casey's throat and a deluge of corrupted female ejaculate from her sopping pussy around hir shaft.

With a surge, Casey's bottom expanded dramatically and hir waist narrowed to dimensions that would have screamed 'woman' were they not belonging to a seven foot horse.

The taste of Jen's seed and the feeling of it being forced so suddenly down hir throat made Casey climax as well, a veritable bulge forming in Jen's otherwise well muscled, furry abdomen as she was filled to the brink with a couple gallons of horse cum.

Both panting, Casey finally let Jen's cock fall from his mouth, only a couple drops of seed remaining on it as he had been very diligent in cleaning it off. Jen's own female productions coated his shaft, eliciting a strange tingle from the area behind hir balls.

With a lewd slurp, Casey pulled out from Jen as shi felt changes finalize between hir balls and anus. Shi turned hir back to Jen and leaned down, legs spread wide and glossy black horse tail lifted to expose hir rump. "Is it what I think it is?" Casey asked curiously, afraid to touch it and find out for hirself.

There was no answer required, as Jen leaped off the bed at the sight and promptly plunged hir still raging, nearly two foot horsecock into Casey's brand new pussy.

It was nothing like Casey had ever felt before, and shi whinnied loudly as her virginity was taken suddenly and forcefully. The new stimulation caused hir cocktongue to come to attention again, and as the foot long length emerged from hir mouth Jen grabbed onto it with one hand, jerking it off wildly.

Casey bucked and whinnied helplessly as shi was taken for the first time, suprised at the formerly demure woman's quick transformation into a powerful, authoritative lover.

At that rate it was not long before Casey climaxed, both her cocktongue and fresh pussy throbbing as they expelled their bounties. After they were emptied, Jen pulled Casey back onto the bed where they lay waiting to the corruptive nature of their bodies to wear off.

"Sorry transforming me messed with your gender," Jen said meekly.

"Really," Casey said as shi began to drift to sleep, relishing in the feeling of Jen's massive equine prick still being buried in her pussy, "It's absolutely no problem at all."