Awesome art by: Kendryzak
Things could have been a lot better. But they could have been a lot worse as well. Fen wasn't ready to call it a failure by any stretch of the imagination, but it didn't quite resemble a success either. More work was greatly needed, and this would be a huge step forward in doing that.
Oscar remained in his transformed state for about a week by this point. The mouse wondered if he couldn't potentially cause him to revert back to his original canine form, but at this point there was a greater need to control the beast he made before it got even more out of control. And he had to do so fast, because the constant need for powerful tranquilizers was beginning to raise questions from his superiors.
This had been one of the greatest breakthroughs in biology and he didn't need his fun and fame to be ruined by some prying eyes.
So far Oscar had been kept in a constant stupefied state, allowing the mouse to move and manipulate him as he saw fit. Luckily the handy laboratory robots could keep secrets and were strong enough to heave the now seven hundred pound body up onto a new, much more sturdy, operating table.
The thick metal bands that secured the lizard beast's arms, legs, and tail were custom made for the job and would hopefully be enough to restrain Oscar once he woke back up. The last of the tranquilizers had been administered over an hour ago, and in all that time Fen had been hard at work implementing his new method of control.
The mouse was by no means a medical doctor, let alone a brain surgeon, but a crash course on the subject over the past couple of days made him fairly confident in what he was doing as he carefully cut away a section of Oscar's skull at the back of his head. It was a small enough portion that allowed him access to this lizard's brain to implant his control device.
The little object wasn't any larger than a box of matches with a small antenna sticking out of it. During the course of this surgery Fen came to realize how powerful Oscar's healing factor had become and on top of racing to complete his task before he woke up, he now had to fight the bone and scalp from sealing off his work before he was done.
Luckily he was a better surgeon than he thought, and as soon as the lengthy wires were maneuvered into place within the lizard's brain, he was able to sit back and let the beast's regenerative abilities clean up.
No later that Fen hopped off his chair and began to put away his tools did the giant reptile begin to move. Oscar uttered a low growl and grimaced. His limbs gave experimental tugs at their restraints but found them to be quite immobile.
At the sudden animation, Fen gasped and dashed to his nearby computer to run through the device's operating system. He hoped he had enough time to run an initial diagnostic but it seemed as though he wasn't going to be given that chance.
A guttural groan emanated from the lizard's barreled chest and his eyes slowly came open. The rest of his faculties returned quickly as abrupt panic and rage took hold. A hissing snarl tore through Oscar's mouth and he threw himself against the thick steel bands that secured his body. A deafening creaking and groaning emanated from the table as it sounded as though it might collapse from the strain.
Fen's fingers raced across his keyboard accepting prompts that appeared across his monitor. “Just hold on, big guy,” the mouse said under his breath as various lines of code and diagnoses popped up. Everything seemed to be connected and working, all he needed to do was turn the device on and see how things went.
With a swift click of his Enter key the device went to work. As soon as it did, Oscar let out an ear splitting roar with his back arching as high as the table would let him.
The mouse reeled around and stared with wide open eyes at the pained expression across his experiment's face. But there was something more there that wasn't before: recognition. It took a few seconds for the initial outburst to die down, soon followed by more, albeit less loud. It was a good thing that they were in the basement of the facility otherwise this entire experiment would have just been found out.
To Fen's pleasant surprise, the lizard cooled his aggression to be released from the table and its snarls slowly turned to a volume that didn't make the mouse's blood rush with adrenaline. Oscar still looked profoundly pissed off though, or maybe that was his natural expression.
“Oscar?” Fen said as he took a couple steps closer.
At the sound of his name, the beast turned its head as best as it could to look over at his friend. Recognition bloomed within those primal, slit eyes and he let out a pained whine.
“F-f-fen..” the lizard gurgled as best he could with his oddly shaped mouth and forked tongue.
“That's right, it's me. How do you feel?” the mouse asked, now coming to stand directly by the table.
“What...happened...?” Oscar asked slowly, as if finding words was painful.
“It was the experiment. Do you remember?”
Oscar huffed and hissed for a moment and then fresh anger bloomed across his face. “You...did...this...!” Oscar growled angrily.
“You're right, I did. But look at you! You're beautiful!” Fen said earnestly and reached a paw out to stroke it over the beast's powerful arm that was easily triple the size of his own. “You're a scientific marvel, a break through in biology!”
“I...am...monster!” Oscar snarled.
“No, you're not!” Fen snapped back defensively. “You're a work of art, and I will not have my work insulted as such.”
“Fuck...you...!” the lizard roared.
“I promise I will help to try to restore your cognitive faculties but you have to work with me here. Please?” Fen sighed and looked the beast in the eyes. Oscar hissed angrily and glared but he at least seemed to realize that he had no other options. His reply was relaxing back as best he could against the table.
“Thank you,” the mouse said and made his way over to his computer once more to check what the device was doing. It didn't take him long to realize that while his method was correct, his accuracy wasn't. The device that he had once used before to control a trio of other subjects like puppets was planted on the wrong part of the brain. A simple oversight given that Fen didn't really know how much the dog brain had changed when the transformation took place.
“Looks like we're just gunna need to do some surgery again. But once I'm done your thought processes should be back to normal,” the doctor concluded confidently and nodded. He returned to the side of the table once again and gave Oscar a reassuring smile. The lizard wasn't set at ease by it as well as Fen would have preferred.
“I...don't...want...surgery...” the lizard struggled out.
“You don't have a choice in the matter. Plus, it'll be good for you because you should be back to your normal self once we're through.”
“Normal?” Oscar asked, slightly hopeful.
“Well...normal on the inside at least,” Fen chuckled and made his way around the table. He'd need to procure more sedatives and make a stronger saw than the one he used before. It took him a minute to get through the beast's thick skull and when time was of the essence, every little bit counted.
“No!” Oscar roared suddenly, startling the mouse and making him turn around. “No surgery!”
“Honestly! Oscar, be reasonable,” Fen huffed and set his paws on his hips.
“No! Return...normal!” Oscar snarled and began yanking at his restraints again.
Such a brute, Fen thought to himself before he turned back and continued on for the exit of his lab. Certainly he would see the light of his situation once he could think coherently enough.
Fen had just begun to think of the next few steps he would need to take once he had returned Oscar's mind to its proper place when he heard a loud, metallic clang echo through the room. He recognized the sound right away and whirled around in time to see the thick bands holding the beast's left arm to the table suddenly explode from their place. They showered the nearby computer equipment in chunks.
“No! Normal!” Oscar continued to roar as several other bands popped free of his other arm and legs. Fen was stunned to find that the failure of the restraints wasn't so much because of the lizard's immense strength, but because something had caused him to grow even larger than he already was. In mere seconds the last of his shackles failed and he leaped from the table in a blur of motion.
The mouse was so startled by the sight that he barely had any time to react. He turned and dove for the door but found that Oscar had somehow beaten him to it and now his hulking body stood in the way.
Fen stared with wide, terrified eyes at the looming beast who had now grown a foot taller since the two had last been in this same kind of situation. “O-Oscar...be reasonable now. You can't hurt me. Without me then you can't be returned to normal,” he pleaded pitifully as his mind raced to find a solution to this unfortunate predicament.
Oscar didn't seem too bothered by that idea at the moment. In a flash he lashed out with his hand and wrapped his scaled fingers around the mouse's neck. Fen barely let out a squeak before he was lifted from the floor and then thrown across the room. He landed with a crash against his computer equipment, knocking it all to the floor with a series of static pops and snaps as circuits shorted and sparks flew.
The mouse struggled to catch his breath as he lied there on the floor. He didn't feel that anything had been broken but he was certainly bruised all over. It hurt to move, but all that pain fell by the wayside when he heard and felt the lizard approach. Each footfall shook the floor that sounded like a side of beef slapping concrete.
“Please don't hurt me,” Fen managed to whimper out and rolled onto his back to look up at the beast. While malice and rage still held a firm place in Oscar's eyes, something else had begun to take root amid his slightly recovered memories and thoughts. At some point in the struggle to get free of the table and his attack on the scientist that had done all of this to him, the urge to mate had settled.
Oscar's thick, scaly cock had become erect and stood straight out from his lap. With every step he made, it gave a slight twitch with fresh precum dripping from its tip. The thick bulb at the base had also swelled, and the closer he came, Fen was able to see that his entire manhood had grown larger just like the rest of him.
Fen realized that to get to this beast's heart, he'd have to play to his more animalistic needs. Nothing he hadn't done before, of course.
The mouse struggled into a bit more freed up state and shakily pulled his lab coat from his shoulders. The crash through his equipment had done a great deal in undressing his bottoms, as his belt was snapped and his pants hung somewhat loosely midway down his thighs. He sank his paws down to push them the rest of the way but by that point Oscar had reached him.
The beast reached down and grasped mouse's belt and gave it a savage yank. What remained of his bottoms were literally torn away, underwear and all. Now naked with nothing at all keeping him from Oscar, the mouse readied himself for what promised to be a particularly rage infused sexual experience. And for whatever reason, that thought appealed amazingly to him.
The lizard grabbed Fen by the knees and lifted him easily into the air before pulling him close. The mouse thudded against Oscar's chest with his arms splayed wide to hug around the other's muscular torso as best he could. The powerful, reptilian cock throbbed just below him, his small butt resting it in a way that caused it to grind between his cheeks.
From the corner of his eye, Fen caught sight of one of the helper robots that were present in his lab through the whole ordeal. He gave a frantic wave to catch its attention. “You there. I need fifteen milligrams of Carfentanil immediately!” he shouted. The squat, bipedal machine that most resembled a trashcan, lit up and gave an affirmative beep before racing off on stumpy legs.
Please hurry, the mouse added in his head as Oscar gave an indignant hiss. Fen felt himself get lifted and brought back down, this time finding the tip of the massive, reptile cock waiting for him. He reminded himself to relax as best he could but that was better said than done.
A surprisingly pleasant memory came to the mouse when he felt the cock end push under his tail and force past his tight little asshole. The first time that Oscar had fucked him so mercilessly while in this state was an experience that Fen had often found himself thinking about. Though aggressive and rough, he enjoyed being used like a toy intended only for the pleasure of one beastly individual. Now that it was happening again, he couldn't hide the pleasant grin on his face.
“M-maybe go a little slower-” Fen began to say but his words caught in his throat when he was abruptly yanked down. All those thick, throbbing inches plunged into his ass in an instant and he was overwhelmed with an intense surge of pain and pleasure. He gasped with eyes strained wide, his stomach bulging from the massive insertion straining his depths.
“Oh fuck...” the mouse whimpered before Oscar began savagely thrusting up into him. He tried his best to simply hold to the sides of the lizard but it turned out to be a much harder thing to accomplish when being bucked into. He fell partially away from his friend's massive form, held aloft almost entirely by his cock and hold.
Oscar huffed pleasantly as the femboy's insides constricted him like a voice. Precum spewed from his tip to paint Fen's depths with enough lubrication to make the whole ordeal more bearable. The mouse was incredible gracious for this, even though it wasn't a conscious effort on the beast's part.
It took a minute or so of aggressive use, but eventually the intense pressure in his stomach gave way to pleasure. The substantial cock, about the size of an equine shaft, pounded at his prostate upon every entry. Pleasure rocketed up through his core an he found himself whimpering not from discomfort but from bliss.
Oscar's guttural snarls echoed through the empty lab as he pulled the mouse down every time he would push his hips up. His girthy dick would go from tip to base with every insertion, spewing more precum and causing the slippery liquid to gush from the femboy's abused ass. The only thing that wasn't going in and out was the grotesquely huge knot at the base, though Fen could feel it strain at his hole every time it would drive up to meet him.
Through hardly any effort on his own, the mouse's cock began to swell from the repeated abuse. As soon as it filled with an appreciable amount of blood, the lizards motions caused it to grind between their bodies. Though he didn't have much control over his situation as he'd have liked, it was a pleasant enough sensation, though greatly eclipsed by everything else that was going on.
Fen sucked in shuddering breaths as he endured the brutal thrusting. He felt like a rag doll with how often he found himself bashing against the lizard's chest. His legs were strained as far as they could go and their muscles were fatigued to the point that he felt like they were going to tear off. If not for the intense ecstasy of his ass being used like it was, he'd have been hating the situation.
The first time Oscar had taken advantage of the femboy like this is was such a new and frightening experience, now it was exhilarating and the mouse was having a hard time not loving it. Getting stretched to his limit was one of the best sensations he had ever experienced, greater than when he earned his doctorate or even when he was accepted to this institution. He would never admit it, but he was becoming addicted to the pleasure.
Time and time again, the mouse's cries of ecstasy mixed with the beast's deep, thrumming huffs. Fen could feel his mind slipping away and going blank, his stomach brimming with such ecstasy that he felt like he was going to pass out. He could barely focus as his eyes had begun to steadily roll up in their sockets. He even tried to churn his hips little by little but the lizard's grip was so strong it barely allowed him any movement.
Right when he felt like he was going to pass out, a deafening roar snapped Fen back to reality. He startled and looked up at Oscar with concern but found that the beast was gritting his teeth and shaking his head, spittle flinging from his pink gums.
At first he wasn't for sure what was happening, perhaps afraid that his monstrous lover was hurt, but in reality it was just the opposite. The sound marked the heightened bliss that the mouse's tight insides provided, and he was now spurred to go even faster to chase what promised to be an amazing climax.
Fen screamed as his body churned into a blur of motion. Being yanked up and down like a jackhammer made him terrified for his life, that the beast could get carried away and really hurt or kill him. Getting fucked to death didn't sound like that appealing of an obituary.
But then again, the mouse could almost care less. He continued to shout pitifully as he clung desperately to the lizard's front in an attempt to hold on to anything. The fat knot at the base of the monster cock was grinding into his hole so hard that he felt like he was going to be split open. The precum that gushed into him was nearly a constant, messy stream that spilled out of his loosened hole and spattered the floor.
When Fen thought there was nothing more that could happen, Oscar bellowed deeply and yanked his small body down as hard as he could. That thick knot pushed inside and swelled to the size of what felt like a melon and locked the two together. It was the catalyst that caused his own cock to flex and begin painting the lizard's belly with a few spurts of cum. He whimpered feebly at his sudden climax, but it was nothing compared to what was about to happen.
When the two were comfortably tied, a deluge of cum erupted from the lizard's tip. It surged within Fen's bowels and made his stomach expand like a water balloon. The pressure was even greater than before, and instead of being torn in half he felt like he was going to burst. As those huge, reptilian orbs emptied into his small body, Oscar continued to wiggle and buck, as if expecting the knot to just pop free so he continue his vigorous fucking like before.
The volume of that gooey, lizard cream got to the point that the mouse was sure he was going to start vomiting it out, but before it got that far the flow eventually tapered off. That didn't mean he looked any less pregnant though.
Once the gushing had truly come to an end, Oscar huffed a sigh of sexual relief and then looked down at his captive fuck toy. Fen breathed hard and still couldn't quite get his eyes to stop seeing double, but when they did finally focus he found himself staring up into those menacing yellow slits once again. This time they weren't filled with hate as much as they were with hunger.
“O-Oscar?” Fen squeaked out softly.
“Food,” the lizard bellowed and opened his mouth, giving the mouse a view of his double rows of needle sharp teeth and a pink gullet that would have no problem swallowing him whole.
“Fuck,” Fen whispered. He had no energy to fight or beg for his life, he supposed the best sex of his life would do that to someone. But then again, it wouldn't exactly be the worse way to go out, at least his last memory would be a nice one.
Resigned to his fate, the mouse watched as the beast leaned down, ready to chomp his toy's head. With inches to spare, Oscar let out a pained roar and yanked his head back while reeling around. Fen startled back and looked around as to what could have caused the reaction and found the little robot he had ordered to bring a dose of tranquilizer had stuck the beast in the flank. The poor thing had just administered the full dose before Oscar backhanded it with such force that it was catapulted all the way across the laboratory.
By the time he turned his attention back to the mouse, he was already feeling the drug's affect.
The first wave of exhaustion came on suddenly and the towering lizard swayed. He gave a low, tired groan and stumbled back a half step. His own vision blurred and he could no longer concentrate on the tasty meal that was still tied down to his cock. Though his mind and stomach fought to still take a bite, every muscle in his body failed at the same time.
To Fen's luck, the beast teetered backwards, probably saving his life. The mouse rode the lizard down until his back collided with the floor with a crash that shook the whole room. Though jarred and with a frantically beating heart, he was safe. At least for the time being.
“Well then,” Fen sighed and absently stroked a paw down over his cum swollen belly. It gurgled slightly to the touch. “I certainly hope this doesn't take as long as the other times to resolve itself,” he mumbled absently to himself, reminded again of the many times that he and Oscar would spend the night together fucking each other's brains out. Each time would often result in a half hour break as they waited for his knot to deflate.
The more the mouse thought about those past time, the more he felt bad for his former lover. He looked down at what he had become, the contently snoozing beast that he was. Though certainly a scientific marvel worthy of praise from the greatest minds of the century, there was still some humanity left in there. And Fen was determined to get it out at any cost.