The Insane Transformations of Dr. Marlowe [Anthro Cheetah TF]

Tier Reward for Loud Virus

Dr. Marlowe has a formula—a groundbreaking, dangerous concoction that can reshape a person's very essence. Gender, abilities, even the merging of human and animal traits. Nothing is beyond his reach. The university might have dismissed him, but Dr. Marlowe is far from finished. Now set up in his secret lab beneath the campus, he's just begun.

Prologue

The hum of machinery echoed through the dark, subterranean chamber beneath the university campus. What had once been an empty maintenance corridor and bunker had now been fully transformed into a research facility straight out of an old science fiction film. The lab, cobbled together with stolen equipment and salvaged tech, flickered with the dim, cold light of fluorescent tubes. Beakers bubbled on a counter while vials of swirling liquids sat on a rack, glowing ominously in the half-light. 

Dr. Marlowe, once lauded as a brilliant geneticist, now muttered to himself as he leaned over his workbench, a wild grin on his excited face. His once-pristine lab coat was now frayed and stained with remnants of his past experiments, but he wore it like a badge of honour, every rip and burn was a reminder that he was getting one step closer to achieving his dream. They called him mad, unethical, and dangerous, and they even threw him out. But he knew better. He knew that humanity was broken and flawed in its primitive, stubborn ways. And he was going to fix it, no matter what it took. A thrill went down his spine at the thought; he was about to make history. 

He held a syringe filled with a shimmering, green liquid in his hand—his first successful serum. "Geni-X," he called it, a cocktail of genetic modifications that could rewrite a person's very essence. This serum would do more than just alter DNA; it would create a new kind of human free of the limitations imposed by nature, society, or tradition. His face flushed as he imagined using it for the first time, watching a person transform slowly into something new: men transforming into big-titted women, people growing fur or tails or who knows what else. No, not God, him. He had surpassed God now! He was taking control of the evolution of the species, one person at a time. Marlowe’s eyes gleamed with excitement as he gave the syringe a gentle shake, watching the liquid inside swirl. 

"Perfection," he whispered to himself, a manic grin spreading across his face. "They said it couldn’t be done, that my work was unnatural. But they’ll see. Oh, they’ll see."

His hands trembled with anticipation as he carefully placed the syringe in a sterile case. The preparations were complete. All that was left was to find a test subject—a catalyst to prove that his theories were sound, that his work could change the world.

Turning to his makeshift control station, Victor tapped at the keyboard, bringing up a wall of hacked security footage from across the campus. Dormitories, lecture halls, cafeterias—the university’s digital eye network was now his. He scanned the feeds, searching for the perfect candidate. It couldn’t be just anyone. He needed someone...worthy of transformation. Someone with traits that needed correction. Of course, everybody would one day take some form of Geni-X and evolve, but he wanted the first one to be special. He needed everything to go perfectly if he was going to convince the scientific community that he wasn’t crazy.  

"Somebody who will be grateful…somebody who needs my unique kind of help." he mused aloud, fingers drumming impatiently on the console. His eyes narrowed as he paused on a particular feed—the bleachers around one of the main stadiums. The track team was practising and dashed past in a crowd, only for one lone woman to lag behind. She stopped, leaning heavily against her knees, breathing heavily, and watching as the rest of the team dashed ahead without her. She sighed sadly and walked off, sitting down on the bleachers with a depressed look on her face.

“An aspiring athlete…too slow to make her dreams come true.” Marlowe grinned, he looked over her, with her dark blonde hair and bright green eyes. Her body was fit and beautiful but not getting the job done. “Perfect…”

All he had to do was wait until she walked close to one of his secret traps; he’d worked tirelessly in secret to cover the campus in trap doors and tunnels that would deliver his victims, or rather test subjects, directly to his lab. While waiting, he searched for her details in the college database: Tina Lenette, Twenty-Two, English Major and, judging by his expert eye, a double D chest and suitably wide hips. Marlow felt his whole body tingling with excitement as he set about preparing Tina her own special shot of Geni-X. 

Chapter 1

Tina’s legs and lungs burned with exertion. Despite the cold night air her skin felt hot and flushed as she finally crossed the finish line. The grounds were silent save for her breathing and the slap of her sneakers against the hard track. A quick glance down at her smartwatch made her grimace, even slower than last time. It was one thing to know you were one of the least skilled members of any team but it was another to know that you were the worst. More than once, the college coach gently encouraged Tina to try another sport, but she refused. That had been her problem all through high school, she jumped from one club to the next and when she wasn’t a savant by the end of the month, she gave up. No more, she was sticking with track and field, even if it killed her. On nights like this it almost felt like it would. 

Still gasping for breath, she decided to throw in the towel for the night and gather her bag to head back to the dorm. Tina couldn’t help but pout; in the movies, when the protagonist stayed out all night practising, they miraculously became the star of the team. The cold air instantly had her shivering as she finally cooled down; she didn't have much coverage in nothing but a skin-tight pair of running shorts and sports bra. All she wanted was to get back to the dorm and have a warm shower but her legs had turned to jelly after all that late practice; even jogging back to the dorm was too much. She cut across the green garden beds that separated the walkways, wanting to cut down on her travel time when suddenly she felt a sting in her ankle.

“Ow!”

Tina looked down, expecting to see a pointed stick or maybe a bug bite, instead, she saw:

“A…claw?”

A metal class, like one of those ones in arcade machines. She only had a moment to think about its absurdity before suddenly the ground gave way. The class pulled her back, and a hidden trap door opened. She yelped as she was pulled underground, but instead of dirt, there was smooth metal. 

“Aaaaahhhh!” 

The slide seemed to go on forever until finally, she exited the dark tunnel with a heavy thump, landing on the floor of a strange room with glass walls that looked out into a laboratory. 

“What the hell?”

“Congratulations, Tina!” A voice boomed, “You have been selected to be the very first person to experience evolution thanks to my precious formula.”

“Wha-? What do you mean formula?”

A man stepped out of the shadows. He was unkempt, with wild hair and even wilder eyes. He had what looked like a dart gun in his hand and a small, sharp dart in the other, which he loaded into the pistol. What on Earth? This had to be a dream, right? She exhausted herself running, and now she was dreaming about crazy scientists! 

“This Geni-X will make you the athlete of your dreams!” 

“...Like performance-enhancing drugs? This is the weirdest pitch I’ve ever heard.” Tina said. “Now let me out of here!”

“Don’t worry, you’ll see the light soon enough.” The strange man grinned, pressing a button so that the glass windows opened slightly for a moment. Tina didn't have time to move before he pulled the trigger, and the dart shot into her arm. 

“Ouch! What the hell is wrong with you!” She cried, grabbing the dart and ripping it out. 

It was too late, though. A burning sensation was already spreading through her veins, along with an ominous heat that began as a dull ache and quickly intensified. Her back arched violently, her spine twisting and lengthening as if it were being pulled taut by some invisible force. Her muscles bulged and tightened, sinew and tendons stretching to accommodate the sudden growth. The flesh on her arms and legs rippled as new muscle fibres formed, layer upon layer, expanding her limbs and making them leaner, more defined.

It was a terrifying, primal sensation, raw and slightly intoxicating. Tina felt like she could run a marathon. As her body reshaped itself, she could feel her senses sharpening, her reflexes quickening. Once rapid and chaotic, her heartbeat began to slow, each pulse becoming steady and deliberate. Her previously ragged and strained breaths became deep and controlled, filling her lungs with cool, crisp air that seemed to fuel her transformation further. Tina flexed her fingers, the muscles in her legs tensed, powerful and coiled, ready to spring at a moment’s notice. Her senses were alive, every sound, every scent, every subtle shift in the air around her suddenly magnified.

“This…feels incredible!”

“Yes, yes!” The scientist was practically bouncing on his toes. “It works! I knew it would!”

He was cackling maniacally, but Tina wasn't paying attention. There was a strange pressure at the base of her spine that forced her to double over. Her body undulated as it tried to push the pressure out. 

“Oh….Oooooohhh!”

All at once the pressure released, and suddenly, a tail burst forth, extending behind her with a smooth, fluid motion. She gasped in shock, her hand trembling as she reached back to touch the sleek, spotted appendage. It was silky, covered in smooth fur that she could rapidly feel spreading up the small of her back.

“W-what? No! No, what are you doing to me?!”

As she gawked at the tail, a tingling sensation spread across her scalp. Her ears, already sensitive, began to twitch involuntarily. She felt them shift, moving upward and rounding into two small ears atop her head. All at once her hearing expanded even further. The sound of her seams tearing, the distant hum of machinery, even the quiet breath of the scientist watching her—all of it reached her with startling clarity. Her clothing was starting to buckle now. The tight sports bra was unable to handle her muscular shoulders. The straps tore apart as the fur rapidly covered her entire body, breasts and all. Soon, her whole body was coated in the silky, sleek pelt patterned with dark spots. 

She watched, entranced and horrified, as her hands and feet transformed. Her fingers grew slightly longer, her nails sharpening into retractable claws. Her feet, now digitigrade, shifted subtly, the soles padded like a cat’s, built for silent movement.

“Beautiful,” the scientist whispered, his eyes wide with awe. “You’re more magnificent than I could have imagined.”

“I’m a freak!” Tina cried. “You’ve turned me into some sort of cheetah woman?!”

“Yes! Can’t you feel it? Your strength and beauty have increased tenfold, nobody could ever hope to beat you in a race now! Isn't that what you wanted? To be the ultimate runner, now you can be!”

“Not like this!” She snarled, feeling her fangs bear. “You-! You-!”

She lunged at him, but her balance faltered, and she ended up slamming into the glass, sharp nails leaving scratch marks on its surface. The changes to her body were so sudden and overwhelming they left her disoriented.

“How am I supposed to be a track and field star when I look like this! Even if people accept me, which they won't, they’ll say it’s not fair!” 

“Soon, you won’t be the only one. I will use my Gen-X to transform the whole campus into their ideal selves, you may not even be the only leopard girl! Isn’t it exciting?” 

Tina flicked her tail in irritation; she had to get out of here. And when she did, she would use these new claws of hers to teach that mad scientist a thing or too. A low growl rumbled up her throat and through her chest; Tina did her best to ignore how primally satisfying it felt. The crazy man seemed like he was about to say something else when one of the computer screens nearby lit up and so did his eyes.

“Wonderful! The algorithm has found somebody else!” He said gleefully, “I have set several parameters, I have quite a few Gen-X prototypes to test, yours was the first. I wanted the first transformation to be a reward.”

“Reward? Some reward.” Tina huffed, he might think turning her into a track and field star like this was a reward but she certainly didn’t. 

“This one, is a show of what Gen-X can do to teach a lesson.” The scientist continued as he swivelled the computer screen around to show her.

It was a frat party, several guys were hitting on women around the beer pong table and Tina sighed; she could have been there tonight. Instead she decided to practise and look what that got her. She recognised one of the guys on screen, Brad, a notorious hound dog; he had his arms around a less than enthused looking woman who was constantly trying to wiggle out of his grasp. 

“Gen -X will make him think twice about behaving like this in the future.” The scientist said ominously.

“What are you going to do to him?”

“I shall turn him into the thing he desires most, maybe walking a mile in a woman’s shoes will teach him a  thing or two…”

“You’re going to turn him into a chick!?”

“No, my Gen-X will. It will be glorious, the most extreme change so far!”

Tina looked down at her furry body; more extreme than this? She would never admit it out loud, but she was actually curious to see what would happen. 

Sequel can now be found here.