Chemical Enhancement

Story by danath on SoFurry

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The needles glistened, all in a row. Jerry grinned, purring to himself as he walked down the row. There were six needles, each packed with enough chemicals to more than rival the average college chemistry class.

Jerry spent months researching, reading, testing... the average-looking cougar spent nearly every waking moment since discovering his love for science his freshman year. Now a graduate student only a few weeks from graduation, he was confident he'd found his holy grail.

He smiled as slid his fingertips down the sleek tubes of the needles. Several were green, and glowed lightly in the darkened room. Another two were bright orange, and the last, containing the largest load of chemical stew, was a deep, crimson red.

"Finally..."

Jerry purred loudly as he carefully checked his results one more time. All the tests... all the simulations... this was it. This was what would work. And now... finally... it was time.

Jerry's long, golden tail waved behind him slowly, the anticipation growing within him. He checked his surroundings again. It was late at night, almost 10 p.m. Nobody was around on Friday evenings, so he had free run of the lab. It took him hours to cook up his special recipes. He was exacting and unforgiving - the slightest wrong measure and he started completely from scratch. The cougar took no chances with his ultimate creation.

The formula was specific and incredibly secret. Most of the concoction resided in his head - all his notes were destroyed soon after being created. A few lonely files resided on his computer, heavily encrypted in case he was discovered, but none could reveal the entire story of what he was attempting tonight.

His fingers shook, just perceptibly, as he reached for the cart of needles and wheeled them over to one of the wooden counters lined up in the room. He wheeled the cart next to the counter as he hopped on and picked up the first syringe.

The couger slowly brought the needle to his fur. The point barely pressed against his neck, the site of the first injection. He paused only momentarily before the pushing the needle, using his thumb to push down on the plunger and inject himself with the first solution. The green liquid disappeared into his body, swirling into his bloodstream.

Almost immediately, the cougar tensed. A feeling of warmth spread into his head and upper chest. He reached for the second and swiftly brought it to his chest, on the right side. He injected himself for the second time just below his right nipple, then did his other chest very quickly.

The warm feeling spread more quickly as he picked up the orange syringe. He was breathing heavily as the chemical storm raged through his upper body. He quickly moved to stick the bright orange syringe into his balls, carefully filling his scrotum with another potent mixture.

He let out a deep moan as his cock grew instantly erect. The spent needle clattered to the floor as he picked up the final injection. The crimson contents glowed more than before, it seemed, illuminating the cougar's fur. He shivered as he injected the contents into the base of his painfully erect shaft, between the skin and his sheath.

"Oooooh... oooooooh!"

Fire shot through his body as the serums began to mix, changing his genetic structure. The cougar's muscles spasmed as he yeowled, claws extending and retracting rapidly. He wasn't expecting it to be so violent, but as soon as the thought crossed his mind, the spasms went away.

He breathed hard and sat up slowly, groaning. His body felt like it was coming out from under a massive dose of anesthesia. Feeling began to return to his body, especially in a select few areas.

Jerry shuddered and hopped off the counter. He didn't have much time now... he needed to move fast.

After dumping the syringes into the burner and spraying down the area with a strong cleaner, he left the lab - it was as though he'd never been, though his body was starting to suggest otherwise.

Jerry shivered as his shirt rubbed across his nipples. They were swollen and large, larger than they'd been before. He was expecting this, though it felt much better and was happening more quickly than he expected.

He left the science building and made his way across campus. He lived in a dorm nearby. It was odd for a graduate student to live on-campus, but he didn't like being too far from his work. Now, though, none of that mattered.

Jerry nearly broke into a run. The chemical was affecting him quicker than he'd planned. Already he could feel his throbbing shaft poking against the top of his underwear's waistband. His nipples felt painfully hard and poked through his shirt. He even felt lumps starting to form under the nipples, growing larger and rounder by the moment.

Jerry's breath came quickly as he broke into a half-run, half-waddle up the steps to his dorm. The reason was obvious - two large spheres pushing out against the front of his pants. He rushed past the RA on duty at the front desk before the startled raccoon could notice anything out of the ordinary, then down the hallway of the first floor to his room. His fingers shook as he shoved his key in the door and wrenched it open, then jumped inside, slamming the door behind him.

He had the room to himself, having specifically requested not to have a roommate. He was glad he did, considering what was happening to his body now. He groaned and ripped off his shirt, moaning in the dark as his fingers stroked over his chest.

The cougar shivered and purred as his fingertips came away wet. He blinked, surprised. The lactation was factored into his equations, of course, but he was sure it wouldn't have happened for at least a few days. He must have made an error somewhere...

But the implications of his mistake were lost on the cougar. He couldn't focus on anything but the wonderful feelings running throughout his body. His heavy balls were straining at the front of his jeans as he leaned against the wall, shuddering with pleasure as he started stroking and squeezing his growing breasts.

As the chemical potions continued to rush through him, he purred deeply and smiled. Soon, he knew, he wouldn't be a "he" anymore. He'd be a shi, and shi couldn't wait.

It came sooner than shi was expecting, though. As hir fat shaft pushed up past the waistband of his pants, Jerry tried to unbutton them. But he couldn't - they were stretching too tightly. The legs of the jeans felt tighter as well. Hir thighs and calves stretched the taut fabric as hir paws gripped hir huge cock through hir pants, moaning with pleasure.

Thick cream started to drip from hir black nipples as hir breasts grew to A-cup size. Each nub contrasted nicely with hir lush golden fur, which shimmered in the pale moonlight of the mostly-dark room. Shi panted, shuddering again, as a thick dollop of pre-cum squeezed out the tip of hir cock and drizzled down over hir pants.

A long moan escaped the cougar's lips as shi lay on hir bed, shaking lightly. Hir feet pushed past the end of the bed, something shi'd never done before - shi realized shi was already growing taller. That was odd as well, but Jerry couldn't focus on the problem for more than a few seconds.

Hir pants grew tighter and tighter as hir heavy shaft and balls continued to swell. Grasping hir cock at the black glans, shi shivered, feeling the new sensations make hir buck against hir paw. It felt so good, and shi was only half-hard, shi realized. All that pleasure... and not even hard yet? Shi moaned, muzzle hanging open, as the moonlight played across hir half-naked body and hir new, now B-cup sized breasts.

Hir thighs tenses, straining the fabric of hir jeans further, until the seams began to give way. Thick cords of furry muscle burst through the pants a few moments later, and the cougar eagerly tore the rest of the tattered pants away, throwing them down next to the bed as hir freed shaft flopped heavily against hir belly, landing with a wet smack. Hir heavy balls rolled down over hir thighs, huge and out of proportion to hir growing body.

The cougar's tail tip twitched back and forth quickly as shi thrust hir hips up into the air. One paw squeezed a growing breast as the other stroked hir thick shaft, sending bits of cum and milk flying over the bed.

Hir changed weren't stopping, or slowing. In fact, shi was pretty sure they were accelerating. It was too much - this was supposed to just be the first treatment, something to get started, and already shi was bigger than shi planned. It felt so good, shi wasn't going to complain, but still... the little feeling of panic was soon drowned out by the rising flood of pleasure as the cougar squeezed both hands down around hir massive balls, each bigger than one of hir fists.

The cougar's cock glistened in the moonlight as it grew fatter and harder, still only half-hard. The only sounds in the room were the heavy breathing from the bed and the occasional noise from outside in the hallway. Jerry's paws slid up hir hard belly and over hir large breasts - they were at least C-cup now, and still going strong.

Jerry arched hir back, thrusting hir hips up into the air. Hir cock was still only half-hard, and hir fingers dug into the flesh, dimpling the slick shaft as more thick pre-cum oozed from the tip, dripping onto hir belly. Soon shi realized how big shi was getting as the heavy head pushed up between hir breasts. By the time the tip of the glans was a few inches past hir nipples, shi could feel it slowing.

Instead of growing further, however, it started to completely harden. Shi let out a long hiss of pleasure, feline body arching again as shi used both paws to stroke the long, thick length. The cougar's new shaft wasn't proportional. It was thick, all the way from the base of hir stretched sheath to the tip of the ebony erection, and hir heavy balls were far too large for hir lithe, long body.

Shi didn't care hir experiment was starting to fail, however, as hir fingers dug into hir breasts, now at least DD-cup. Shi pushed hir heavy breasts around hir throbbing, rock-hard erection, moaning as shi pushed hir hips up, sliding the thick shaft up through hir cleavage.

The fat areolas of hir thick nipples pushed upwards into the air as shi stroked and caressed hir new body. Hir powerful, thick thighs, together nearly as thick as hir hips, and hir strong calf muscles pushed hir hips upwards. The cougar's arms, as powerful as hir legs, hugged hir massive shaft tight to hir body.

As the chemical surge started to peak, Jerry gasped for breath, shuddering as hir shaft spat thick streams of thick pre-cum, soaking hir breasts and mixing cum with the milk shi stroked out of hir nipples. The chemicals were hitting their high point, making hir woozy. Shi knew this would happen, but still, the effects were overwhelming hir senses.

Every nerve in hir body screamed with pleasure as shi finally came. An amazing load of hot, sticky cougar-seed splashed across hir muzzle and chest, then another, and another, farm more amounts then shi ever could have produced before.

Hir nipples throbbed as shi stroked them eagerly, milking them. Thick bursts of milk splashed up a few inches before melting into hir thick, luscious fur, mixing with hir cum.

Shi moaned loudly and bucked, gasping as more and more seed pumped out of hir oversized cock and balls. The formerly male cougar thrust and pumped, until the very last drops escaped the head of hir shaft, and shi collapsed back onto hir bed, awash in sticky cum and warm milk. Hir breathing slowed as shi rolled onto hir side, tired and exhausted from hir rapid transformation.

Shi fell asleep quickly, with one paw still wrapped around hir constantly-oozing cock. The monstrous shaft was still half-hard, despite the gut-wrenching orgasm it recently produced.

As the cougar drifted quickly to sleep, shi shivered, and a slight moan escaped hir lips. As shi slumbered in the darkened room, hir breasts rose and fell with every deep breath. They were massive now, larger than double-D, each a slight bit larger than hir head, capped with thick ebon nipples.

Shi had pleasant dreams that night, but the best surprise would happen upon waking the next morning...