Scientific Changes - Stegosaurus TF

Story by WyraachUr on SoFurry

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A TF commission for :Theo_Wintersicon: of himself into a feral Stegosaurus, based upon an art piece he got a while back.

Posted using PostyBirb


"All right, let's see how things are going with this little project of mine..." Theo said to himself as he swiped his lab entry key card through the reader, the device beeping as the doors opened up for him. "By now it should be approaching the point where it's near completion, surely!" He continued, walking through the doors, stepping into the sterile laboratory.

He walked up to his desk, booting up the computer, going straight to his project files. He entered in the passwords to access them, having encrypted them so that prying eyes couldn't access them - he had really gone to great lengths to keep this project secret from prying eyes, and it showed.

"OK, let's take a look..." He dug up the progress information, and to his joy, he saw that it was complete. "Well alright!" He grinned, not hesitating in starting up the sequence to create his little 'project'. The machines next to him whirred to life, liquid filling the chambers as it was mixed up alongside various different samples and other fluids. After a few short minutes, it was ready to be used, pouring out into a variety of syringes.

"Perfect!" He beamed, looking over his work with a giant smile. He had honestly lost count on the amount of sleepless nights that he'd spent working on this project, as well as having to keep it hidden from other people, but it was worth it to see it finally reach fruition. Of course, it'd be better still if it was to work, and he'd find that out very soon.

"And now for the hard part... deciding who to test this out on..." He picked up one of the syringes, looking at the reddish-brown fluid inside of it. If he had told anyone before he had started working on this that he was working on a serum that could turn people into dinosaurs, he probably would have either been laughed out of the building, or had been put away for trying to play god. He had to stay silent about this for a long, long time, and now that he had it in his hands, he didn't know who he could test it on - he'd have to hope that they wouldn't try running out of the room and reporting him to the higher-ups, after all.

"Hrm... I guess I should have thought of this part BEFORE I had started work, to see if I could have found at least one person who would have been cool with this..." He pondered - he did know a couple of friends from outside of work who liked to roleplay animal transformation, so it would have made perfect sense if he had tried to contact them before all this, but it hadn't crossed his mind then. He could try and call out to them right now, but at the same time, he didn't want to risk leaving his work unattended. This WAS mad science, after all.

"Well... if there's no-one else I can turn to at this specific moment..." He prepped the syringe, rolling up the sleeve of his shirt. "I guess I can make MYSELF the test subject!" He placed it cautiously against his shoulder. He had made sure that the serum had been tweaked to a degree that some of his humanity was retained, mainly his mind and speech - given a few variations had been made based on different dinosaurs, the last thing he wanted to be held responsible for was if someone was turned into something like a T-Rex and went on a rampage - granted, if he had made this based on normal dinos, he wouldn't have his own mind to worry about it, but then he'd have to worry about not becoming said T-Rex's lunch. He also knew that this was a one-way trip - he wouldn't be able to return to being a human being after this, not unless someone was to make a serum to make animals into humans, but the chances of that happening were slim to none.

"OK, here we go!" He braced himself, jabbing the syringe into his shoulder, wincing as he pressed the plunger inwards, injecting the serum into his system. He tossed the needle aside, waiting around in hopes of a reaction. It didn't take too long for an odd yet pleasant warmth to start spreading through him, signalling that something was working as intended.

He ran his hand over where he had injected himself, feeling the flesh around there rise out into a slight bump. From there, dark brown scales started to grow out across the skin, his arms throbbing. He could see his arms swelling wider, the muscles developing, beginning to put pressure on the sleeves of his shirt.

"It's actually working..." He couldn't help but smile, the scales slowly working down his arms whilst they progressed further along his back and sides. His shirt strained against him thanks to his muscles growing broader, as well as his bulk slowly increasing, causing him to slightly lean against the counter so he could take some of the pressure off of his back. "Uhfff..." He groaned, feeling pressure against his back and spine. He knew that before too long he'd probably have a hard time standing on two feet if he was to become something quadrupedal, and it seemed increasingly likely that it might be just the case.

"I... actually didn't think that it'd feel this intense... ghhh...!" He huffed, his chest slowly barrelling forwards with each breath that he took, cream-coloured scales now working their way across his front. The sounds of tearing fabric filled his ears as his shirt started to split down the middle and sides, the clothing unable to keep his growing form contained for too much longer. He reached up to tug at his top, aiding in its removal and causing it to shred further, yet not enough to completely cast it aside.

He could feel the scales working their way across his legs, the limbs swelling with muscle and girth, steadily being pushed apart by his widening torso. His shorts were already beginning to strain thanks to the increase in mass, but it definitely wasn't helped by the sudden erection he gained, a rush of heat flowing through him. "H-haaahh!" He bit down on his lip, feeling the front of his pants bulge. He had made a few more tweaks to make the transformation more enjoyable, but he hadn't anticipated that it'd be pleasurable.

"Oooooh damn..." He huffed, feeling his cock throb, starting to grow longer, the head pushing out past the beltline of his shorts. It grew thicker, swelling to the size of a human arm as the added pressure caused his shorts to tear, his cock bouncing free alongside his much larger testicles. He knew that dinosaurs were built differently, but he didn't have a visual reference for every single one that he worked on, meaning he had to improvise in some cases. A dinosaur with a near-human cock looked out of place, but thankfully it'd be hidden internally when he wasn't excited, though he knew he wouldn't be calming down for a little bit. "That's quite the improvement~" He smirked, reaching down to stroke it, struggling to get his hand fully around it.

As he started to pleasure himself, his spine protruded out past his rump, a long, thick tail working its way out of his body, brushing up against the floor as it formed, new sensations filling his body. His feet ached inside of his shoes, the fabric struggling to contain them as they were next to alter, his toes protruding out of the front of them. He wriggled his toes as they became smaller and stubbier, the small toe shrinking away completely whilst massive claws sprouted through his toenails, the rest of his shoes giving up the ghost as his feet expanded wider, all but destroying them.

He kicked off what remained of his footwear, his feet thudding against the floor thanks to the new weight behind them. He continued to stroke his giant cock further, a groan leaving his mouth as he felt the pressure along his back and spine build up further, soon relieving itself as two lines of broad, sharp spikes grew out along the length of his spine, the tip of his tail gaining two pairs of spikes, all of the new growths serving as a defense to ward off predators. Thankfully, given the modifications, they shouldn't be needed, but it was always better to be safe than sorry, especially when he didn't know just what kind of dinosaur he was going to turn into in the first place, but everything he was now left no doubt in mind that he was becoming a stegosaurus.

"Mmrrrhh... mmrhrrffhh..." He grunted, finding it increasingly harder to keep a good grip on his shaft as the changes took to his hands. The fingers shrank, becoming stubbier, the middle fingers fusing into one as they dwindled, short, thick claws sprouting from his fingertips. "Urf, damn it... had to become one without useable hands..." He huffed, the pressure in his back returning as he was forced down onto all fours, his dick rubbing against the floor. "Mmm... although..." A devious smirk crossed his mouth, the changing human beginning to thrust himself against the floor of the lab, the smooth surface working well at simulating his cock, the friction and movement also causing it to slap against his underside at times, drawing more moans from him.

"Oooooh yeah, this is goood~" He panted, continuing to thrust. A small part of him wished that he was thrusting into a female stegosaurus right now, but with no-one else around, he was left to his own devices. Who knows, maybe he'd find some way to turn one of the female lab assistants into a partner, although it'd be hard to do so without any hands, not to mention the random nature of the serum - she could end up as a raptor or a pterodactyl for all he knew.

Whilst he continued to make sweet love to the floor, his neck stretched longer, carrying his head away from his shoulders whilst it became thicker and broader, the thick scales working their way up it. His hair fell away from his head in clumps, landing on the floor in front of him, his ears shrinking away into small holes on the sides of his head. He hadn't noticed just how much bigger he had been growing through this, his body having gained several feet in height and length, his form towering over the desktop surfaces.

"Ooohhh..." He trembled, his nose sinking into his upper jaw as his face pushed forwards, his eyes moving to the sides of his head, causing his glasses to fall to the ground. His teeth fused together within his mouth, pushing out past his lips to grow into a solid, beak-like mass that merged with the rest of his new snout, his eyes taking on a yellowish-green hue to end his transformation. He was trying to keep his tail from thrashing about too much, not wanting to cause any damage to the lab (not that he'd be able to pay for repairs or replacements anymore), and he was trying to keep quiet about it, but when the orgasm hit, he couldn't help but throw his head back and let loose a low, powerful...

"RRRRRRRRROOOOOOOOOOOOOOOOOOOOOOOAAAAAAAAAAAAAAAAAAAAAARRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR!!!"

He cried out in bliss, his body trembling as his massive cock spurted cum all on the clean floor, pooling around his thick feet. His dick jerked up and down as it unloaded, some of his seed splattering against his underside whilst the rest went elsewhere, creating one giant mess around him.

"Ooooooohhhh.... Oooooohhh... ooohhh..." He huffed and growled, the orgasm slowly dying down as his shaft fell limp. "Ooooh WOW..." He chuckled, coming down from his blissful high as he took a look around himself... well, as best as he could, anyway. "I really wasn't expecting it to work so well, but look at me now!" He grinned, or at least he tried to, his new lips and beak would take some getting used to. "All that noise I made at the end, though.. I really hope I didn't attract any..."

"What in the blue HELL is this?!" A voice cried out.

"...attention..." Theo winced, turning towards the door, spotting one of the other scientists who were assigned to the same lab as him.

"Why is there a god damn DINOSAUR in the middle of the lab? And what's all this mess around it?!"

"Er, I can explain..." The stegosaurus spoke, causing the scientists eyes to bug out of his head momentarily.

"You... you can talk...? And you sound like Theo..."

"That's because I AM Theo... this was an experiment of mine... surprise?" He chuckled nervously.

"How... how did you even do this?" The scientist asked. Theo, unable to keep his front legs up high enough for too long due to his top-heavy nature, glanced over at his workstation, looking over the many jars and vials filled with the dinosaur serum he had worked on.

"You made a serum that turns people into stegosauruses?"

"Technically, there's a few dinosaurs in there, it's just a bit random on who'll end up as what. I'd try to fine tune it to remove the lottery aspect, but that's not gonna happen any time soon."

"Can't we just turn you back, or will the serum wear off?"

"Nope, it's a one-way trip, something I was fine with when I injected myself with it."

"Great, just great.." The scientist sighed. "We hire someone to help us with our work, and they go off making something that could, with enough people's involvement, create a real-life Jurassic Park..." They paused for a moment. "Although, come to think of it..."

"I'm sure there are a few people who'd pay good money for that, and given they'd all be sentient, there'd be no risk of any murderous rampages... I might even know a few people who'd be up for the experience, too~" Theo attempted to wink, but again, he couldn't pull that off just yet.

"Theo... you've given me a lot to think about with this..." They smirked, looking over at the many vials sitting in the machine. "A lot to think about indeed..."