Mad Scientist In His Own Mad Experiment

Story by Rudiel on SoFurry

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This story was a request for a good fan of mine. It's taken quite awhile to complete, but I'm glad it's finally done.


Masterson University was well-known for its scientific teams and their elaborate experiments. The state government seemed apathetic to all of the strange stories that came out of there. But some of those stories were so unbelievable, it was expected for the government to ignore them.

Professor Cartwright was conducting his own experiment within the vast underground facilities. He had set up his experiment within the biggest laboratory, where Frederick the gorilla was kept in a cage dressed up in a mind-reading helmet and an extra large diaper. Meanwhile, Cartwright was attending various controls and panels around the room.

Cartwright was a 52-year-old lion. He had a large build hidden underneath whitening fur. He wore a grey T-shirt underneath a white labcoat, and a pair of black pants. But underneath that pair of black pants he wore an adult diaper, a safety tool for his upcoming experiment.

Frederick the gorilla walked around his cage impatiently. The annoying contraption his captors put on his head was very uncomfortable, but was too strong to take off. The leather straps around his face kept it on tight. However, he trusted his captors would eventually remove the contraption for the sake of his comfort.

He didn't mind the diaper, though. He had used it a few times, but no one came by as usual to change him. It was still secure around his waist even with all the fecal matter inside.

"Mm-hm!" said Cartwright triumphantly, "Looking good!"

He turned around and walked towards the seat in the middle of the room. It has a large console of mechanisms behind it, and at the top of the seat rested a helmet similar to Frederick's.

As he approached the chair, a strong smell hit his senses, "Ugh! Maybe it was a bad idea to do this in the laboratory."

"Sheesh!" said Cartwright aloud as he walked away from the control panels, "You smell terrible. Maybe I oughta get Gena in here to change someone's diaper!"

Frederick didn't seem all that interested in Cartwright. He quietly kept to himself.

The lion sat upon the seat and took the helmet in his hands. He gently lowered it onto his head, and wrapped the leather straps around his head.

"Alright, Frederick." Said Cartwright, "Let's see what I can teach you."

There was a start button on the side of the seat, towards the back. Cartwright clumsily started to finger around and then finally found. Taking a large breath, he pushed the button.

"W-w-w-hoooa!" said Cartwright. It was the only thing he felt he needed to say as a transcendent feeling ran right down to his toes.

Frederick was yelping loudly. A strong and strange feeling had taken over his body.

But something was wrong. A cloudiness was overtaking Cartwright's mind. Meanwhile, Frederick's mind was giving shape, and building upwards. Complexities were forming behind his feral thoughts.

Cartwright's intelligence wasn't being copied--it was being transferred! At a steady rate, Cartwright was losing himself in oblivion while Frederick was growing his existence in the world. The professor's knowledge and understanding of the world around him was caving in.

"Emmm..." murmured Cartwright, "... some-thing..."

Frederick was starting to understand words and sounds while Cartwright was losing all sense of his. Slowly his memories creeped out of him. The professor's personality was disintegrating slowly, revealing behind it a feral lion.

The professor was a professor no more. His last few faculties were just basics, the simplest understanding of things. He did not know what to make of the loud noises around him, and the heat going through his body stopping.

Frederick rubbed his head gently, "Oh my... That was intense."

He then noticed something. He looked down at his diaper, and after a second of hesitation, poked it lightly, "Very, very intense..."

Frederick could hear Cartwright murmuring incoherently on the other side of the room. As he took off the helmet, he looked over at the electronic locks at the front of the cage. The lights were out- the experiment much have short-circuited the locks.

Frederick walked up to the door, pushed up on the lock through the metal bars, and pushed the door open. Stepping out of the cage, he looked around the room to get a good look at the place, then looked over at the drooling lion known as Cartwright.

Cartwright had no idea where he was. As he tried to tug himself out of the helmet, he began to pee into his diaper. He didn't even notice wetness crowding around his genitals, he just wanted out of the helmet.

Frederick chuckled as he approached the chair that Cartwright was struggling to get off. The professor didn't seem to mind the huge gorilla approaching him. As the lion tugged on the helmet, Frederick took his dextrous hands and unbuckled the leather straps around Cartwright's chin. The lion flew off the chair, but seemed okay.

"Professor?" called a female voice from outside the room, "Is everything alright?"

"Uh-oh," said the gorilla, "I better leave here before security arrives."

The gorilla then began running towards the other side of the room, quick to get out the door opposite of where the female voice was coming in. And from the other door came in Cartwright's assistant- Eugena Worpa.

Eugena was a quiet rabbit. She had brown fur, was about 5'7, and wore glasses. She was dressed in her normal workplace outfit, a blue T-shirt with a white labcoat and a pair of black pants. She stood upon digitigrade paws.

"Professor?" she called again. Suddenly, she saw the lion on the ground moaning. She began running towards him, "Professor!"

The lion professor was squatted over trying to shoot out a log into his diaper. A face of blissful relief was trying to find its way on his muzzle. A big exaggerated smile emerged when that first shot of fecal matter escaped from his sphincter.

"What the hell are you doing?" she asked, "What happened in here?"

As she got close to Cartwright and saw a dull look in his eye. Worry came to her eyes, "Professor Cartwright?"

She ducked down close to him. The lion barely noticed her presence. Seeing him in the squatting position concerned her, "Are you... are you pooping!?"

His dumb expression, his inability to talk, his disregard for proper bowel relief... Eugena knew what was wrong with him. She had heard of people falling into a primitive trance, and the phenomenon had come to Cartwright.

She took a look at the test chair in front of Cartwright. There was a helmet with psychic emitters on the inside.

"Oh, fuck!" she said, "Oh fuck! Oh fuck!"

She turned back to Cartwright, "Professor? Can you understand me? Say something!"

The professor just murmured blissfully as a giant brown snake pushed its way out of his anus and landed gently on the base of his adult diaper. More fecal matter was coming up behind as a string of drool swung down from his maw.

Eugena walked around front and tried gazing right into Cartwright's eyes. He looked back into hers with a feral gaze.

"...Damn it..." Eugena whispered tiredly.

Feces spread out all over Cartwright's buttocks. The diaper subtly pushed out as the mass around Cartwright's bottom grew.

Eugena reluctantly walked on back to Cartwright's tail and tugged out his black pants cautiously to take a look inside- expecting a mess.

"A diaper?" she said aloud.

'Did the professor plan this?' she thought to herself. She hoped so, because that would mean there'd be a good chance there'd be some way to get him to snap out of his feral funk.

She could smell the rich aroma of lion feces and knew that Cartwright needed to be changed. She was cursed with the disgusting job of changing diapers at the lab, a job that had too much activity, and had the duty of changing Frederick the gorilla.

Her head struck up, "The ape!"

She looked at the cage. He wasn't inside. The door was open.

"Oh shit!" she said aloud, "Better call security."

Eugena then ran off leaving the feral professor in confusion as to where he was.


While the security team went searching for Frederick, Eugena took Professor Cartwright to the nurse's office. It wasn't the first time she had to bring someone to the nurse's office to get changed.

Cartwright was surprisingly obedient, and could still walk upright with Eugena leading him with her hand.

As the two entered the nurses office, Eugena sighed. She walked him over to the cupboard, and opened it up. She took out an adult diaper, only looking for a second to find the size.

"Alright," said Eugena to herself more than Cartwright, "let's get these pants off."

She took hold of the waistline of Cartwright's pants, and slowly pulled them down his legs, revealing his bulgy diaper. Getting them down to his feet, Eugena gently tapped Cartwright's legs, signalling him to step out of his pants. The rabbit girl tossed his pants aside.

She stood back up and proceeded to open the tape on the diaper. As he brought the diaper down, she could see that he caked his fur. Brown muck was all over his ass.

She also got a nice look at the professor's long, furry lion cock. Just looking at it filled her with dirty thoughts, but she shook them off and stuck to the task at hand.

As the diaper dropped to the lion's feet, Eugena once again tapped his legs to get him to step out of his soiled padding. She took the dirty diaper and through it into the trash behind her.

Eugena now had a primal lion-man standing half-naked in the middle of the nurses office with bits of poop falling off his ass. She walked over to the sink and picked up the bucket of water she had one of her coworkers ready for her. Taking it with a washcloth, she walked back over to Cartwright and got behind him.

The professor didn't flinch as the warm and wet washcloth started wiping down his dirty ass. At least not at first, but as Eugena shovelled crap off of his butt, his dick started to rise. The instinctual desire to mate was coming over him, and he had a perfectly good female to breed with.

"If the pay wasn't amazing," said Eugena aloud, "I wouldn't be doing this shit!"

She wiped away more feces in anger but was- deep down- scared for the professor's mental health.

"Okay..." she said finishing off the cleaning, "That's good enough."

She walked the bucket back to the sink, and looked back to see the professor looking at her with the biggest hard-on she had seen in awhile. Even as she poured the dirty water into the sink, she couldn't help but stare at the dumb lion's erect shaft. More dirty thoughts consumed her.

'I guess Kara was right.' thought Eugena, 'Professor really does have a huge dick.'

Eugena couldn't help but think of having sex with the professor. There were no cameras in the nurse's office, and it was obvious the professor was up for doing the rabbit. Eugena finished dumping the water then walked over to the office door and turned the lock knob. Taking a deep breath, she turned back around to the professor.

The only reasonable place to do it was on the floor. As she walked to the center of the room beside the professor, she undid her belt and pulled down her pants. She stepped out of them, threw them aside, and then proceeded to pull down her pink panties.

As Eugena let her vagina out to the world, Cartwright got a big smile on his face. He looked at her sex and started to drool a little bit. Tossing her panties aside, the rabbit got down on her hands and knees and looked back at Cartwright.

"Do your stuff, professor." Eugena said, "Come on, let's go."

The lion got down to the floor with Eugena. He climbed atop her- Eugena was quick to realize how big he was, but could only worry about it for a split second when she was interrupted by a large piece of flesh entering into her body.

"Ooooh..." she cooed.

Then the thrusting began. He pushed into her again and again and again. Eugena's heartbeat raced as the lion began to moan in mating euphoria. She knew it was going to be quick, but she didn't care. It was already phenomenal.

His cock was stretching her vag wide. It felt wonderful as his big meat rubbed up against the insides.

It felt like a few beautiful minutes. A big dumb beast was laying it into Eugena hard and fast. The occasional drop of droll landed on the rabbit's face, but she didn't mind. She was halfway to begin drooling herself.

The grunts coming from the lion began more vicious and stronger. An orgasm was coming up from within him. Eugena bit her lip as the lion roared and started pumping his seed into her. She tilted her body just slightly so she could take in the orgasm better. It was a little disappointing, but still felt great.

The orgasm was over quickly, and Cartwright unplugged himself from her almost right after. Eugena rested on the ground for a minute, then got up. She looked for her panties, snatched them from under the sink, and slid them up. While the lion sat still with a deflating cock, the rabbit got her pants.

"That was a lot of fun." she said, sounding pretty sincere.

Her pants back around her waist, Eugena walked over to Cartwright, "Alright..."

She grabbed that diaper and brought it down to the professor. She netted it around his feet and slid it up his legs, poking the tail through midway.

"Stand up." ordered Eugena.

The lion professor clumsily got on his feet; Eugena helped him and got him to use the table for balance. With the professor up, Eugena pulled the diaper up on his waste and fitted it well before taping it closed.

"Alright..." she said again, looking around the room for the professor's pants.

She took the professor's pants, but then turned around. It was too much work to dress him up in pants to, even if it did somehow hurt his dignity. She placed the pants back down and sighed with relief. Her duty was complete.


It was later on Eugena made a phone call to some professionals in the business. She had heard of phenomena like the one Professor Cartwright suffered, and pulled every resource she could.

"So, what are our options?" Eugena was done beating around the bush. She just wanted to know how to make the professor better.

"We'll see what we can do when we get there." explained Dr. Fetzer, "This is a very unusual case. Have you located the monkey?"

"The gorilla?" Eugena corrected, "No. He got away."

A groan was heard on the other side of the phone, "That's unfortunate. I heard that the gorilla displayed signs of intelligence... he might hold the key to re-educating the professor."

"I know that, damn it!" Eugena snapped, "Listen, do you have any ideas what could be done?"

She could almost hear Fetzer nodding as he spoke, "I have some ideas yes. Compared to some situations, Professor Cartwright's ordeal is very hopeful."

'Compared to some situations...?' Eugena echoed mentally.

"I'll be there in about a day." said Fetzer, "Take good care of him. Primal sentients can get very out of hand if you're not careful."

"I know." she paused, "She you soon."

"Goodbye Dr. Worpa." the phone hung up.

Eugena let out another sigh of relief and began focusing on hoping for the best.