Stress Testing: Phase One
By, Sharako


Featuring:
Dr. Jake Yeager
Demitri




Demitri, a virile male king cheetah, walked down the street past the local medical facility. Animals possessed by demons often get mistaken for being sick, and end up at the hospital, being a demon hunter, Demitri knew this quite well. He turned to look at the entrance of the hospital, it seemed average for a mid size medical facility in the smaller neighborhood of a large city.  


Demitri walked in casually seeing an empty waiting room, with a bored receptionist sitting behind the check in desk. To his side he saw a billboard with several fliers and advertisements, but one caught his attention. It was in large print and had some interesting images. At the bottom of it was contact info and some stubs that could be pulled off, a few were missing. 


The flier read “Stress Testers Needed!” in bold letters at the top. Below it it said “Seeking Healthy Adult Males aged 18 - 40, must be intact. Stress testing of male body parts. Participants will be well compensated, $1,000 per test. All species welcome.” Seeing how much was being offered, Demitri did a double take.  $1,000 was a lot, and for what, seeing how much he could cum, or last. This was way more profitable than Demon Hunting he thought. Looking at the contact info, it seemed like the location was the Andrology clinic just at the end of the complex and a Dr. Yeager as the person conducting the experiment. 


Demitri took one of the contact stubs and went down to the clinic at the end of the complex. The sign in front of the smaller building read Andrology Clinic. Demitri walked into the small building. There was a check in desk and no receptionist, just a bell to call for some assistance. The clinic was empty except for Demitri. He walked over and hit the bell. “Ping!” The sound ran through the small clinic. In the back a voice replied. “Be with ya faster than you can say Kangaroo, mate.” 


Demitri was a bit taken back by the accent he heard from the back of the clinic. Not many in the area had Australian accents. From down the hallway came a tall thylacine. He was lanky but the doctor's coat gave him some fullness. On the name badge read Doctor Jake Yeager.  The thylacine walked over to Demitri. “G’day to ya, What can I do ya for mate?” 


Seeing a thylacine was a bit of a surprise to the Demitri, but then again a King Cheetah wasn’t really native to the United States. Nonetheless , Demitri looked Dr. Yeager in the eye. “I saw this flier in the main lobby. I’d like to see if I qualify for the stress testing.”  


Dr. Yeager was a bit surprised that a virile male like Demitri would come in, and when he had the clinic to himself. This was perfect luck for Dr. Yeager. “Oh, well ye’ came to the right place. A bloke like you is something we could definitely use. Follow me and we’ll get you set up.” 


A smile came to Dr. Yeager’s face as he led Demitri to the back and an empty exam room. It was a bit larger than a normal room as it had some extra test equipment in it. In the corner was a chair. “ You can set your things there mate.” said Dr. Yeager as he pointed to the chair. He went to gather a consent form for Demitri to fill out. “Er we are. A consent and info form. Fill it out as best ya can. I’m gonna warm up the equipment.”  


Demitri looked over the consent form. It was pretty standard, the $1,000 crossed his mind and he signed away at the bottom of the document.  On the second sheet were some personal questions. Height, Weight, Medical History, Age ECT. He filled it out as best as he could. When he finished he set the papers on the chair behind him. “All finished. So what should I do now?” inquired the handsome king cheetah. 


“Well Strip naked and come over here.” Dr. Yeager said as he pulled over a large device. It was odd as it was a flat wall with a hole that was at crotch level. It looked like the hole was adjustable. On the sides were straps that looked to hold the subject in place. It was an interesting contraption for sure. 


Demitri took off his large black jacket, followed by his shirt, pants and underwear. He stood there naked. His large balls and sheath, exposed to the thylacine in the room. “Now just right over here and we’ll get your donger through the hole and then the machine will do all the testing.” 


Demitri walked over as Dr. Yeager aligned the hole to the correct height of Demitri’s testicles and sheath. Having done that, Dr. Yeager grabbed the safety straps and secured Demitri securely to the board. This made him feel extremely vulnerable as he was unable to remove himself from the device or see whatever was about to happen to his manhood. 


“Just relax, It’s gonna take some measurements and then start the stress test.” said Dr. Yeager as he pressed the start button and sat at the other side to watch the show. Everything was automated so there was no need for Dr. Yeager to do anything else.  


The hole started to close around the hefty king cheetah bits. His testicles pushed forward and his sheath pushed down. A scanning laser dropped down and started scanning precise measurements of the cheetah’s male parts. The scanner glinted off the scrotal piercing and included that in the information. The scan finished with a click as a probe exited from the side of the machine. The probe moved to the tip of the tan sheath. It pressed against the black lips of the sheath and endered inside of it. It continued to push in calculating the depth of the sheath and how much space it could hold. It then started to rotate around the penis inside to see the resistance the sheath had with the slick feline penis inside. 


Demitri feeling his sheath being probed felt a bit uncomfortable but it wasn’t too bad. He made a face of discomfort a bit but pressed on wanting to get that $1,000 he was promised.  It was good money. 


The probe retracted a bit and centered at the tip of Demitri’s black feline cock. It slowly entered inside of it. Demitri let out a gasp of surprise as his urethra was penetrated by the bendable rod. It sunk deeper and deeper until it hit the prostate buried inside. “Hey!” Demitri growled as he tried to move, and pull off of the machine, but he was stuck.


“Easy there mate, just let the probe do its thing.” Dr. Yeager said as he watched eagerly, knowing the prize he would soon get. The words seemed to calm the predator as the probe started vibrating, causing the manhood to become erect. It reached a full erect length of 9 inches. Quite impressive for the average feline male. 


“Crikey, I think ya donger is the biggest feline donger I’ve ever seen mate.” clearly the thylacine was very impressed by what he was seeing. “And no barbs. Interesting one that is.”  As Dr. Yeager continued watching the stress test, a ring lowered and inflated around the erect member. It slowly slid down the shaft taking measurements and pressure readings from the well endowed cheetah. He might truly be the King of his species with a manhood like that. 


The ring started stroking faster and faster, the pleasure was very intense for Demitri. He started to gasp and thrust into the hole. He was expecting this and started to purr and let the machine do its thing. As the stroking intensified, Demitri’s cock started to leak pre, but it was sucked up and the probe stuck inside him. It was collected in a sample vial that was labeled semen specimen, king cheetah, subject 28.  


Demitri let out a loud gasp as his orgasm rushed over him. His white balls pulled up releasing his sperm into the seminal vesicles and prostate fluid. The hot creamy and thick fluid gushed up the tube, quickly filling the one vial and moved on to the second and third. Feeling his orgasm slowly wane, Demitri started to pant, catching his breath. The restraints kept him very tight against the metal wall. 


The tube extracted from the still rock hard manhood and left it there erect. The tools went away as something else came out. A hoop moved its way over the tip of the erection and went down to the base. It pulled the inverted foreskin like sheath back as far as it could go and then clamped on really tight. Numbers could be seen as to how tight the ring was. It was enough for it to start to hurt and Demitri could feel something was wrong. “Hey, that’s really starting to hurt, can you loosen that up” Dr. yeager smiled a long grin on his thylacine face. “Oh, I'm afraid I can’t stop it. It has to complete everything it’s gonna do to your donger. You signed up for this, just like all the other blokes.” 


Demitri was now very worried at hearing this. A second ring descended down and stopped an inch in front of the other ring. It started to tighten just as the first one had. Demitri’s manhood would have been starting to turn colors if it wasn’t jet black already. The flesh however was very tight and filled to the brim. 


“What do you mean it won’t stop. I want out of this thing NOW!” demanded Demitri, but Dr. Yeager had completely ignored the test subject. He was well secured and wouldn’t be going anywhere. This last part was really fun. A little platform shot out and under the throbbing penis. It sat right between where the two metal rings were. The platform pulled the metal hoops to it with magnetic accuracy.  From the top came a flat piece of metal, the edge pointing to the trapped manhood had a v shape to it. 


Slowly it came down and was positioned directly in the center of the two rings. Demitri would have felt this if it wasn’t for the discomfort by the rings on him. The PSI gauge on the machine started to go up as the metal started to press down harder. The manhood started to buckle some, but pushed back as the PSI increased. How much pressure could the member take? Just as the PSI started to plateau, there was a sudden thunk, and the metal severed the manhood cleanly from its former owner.  


Demitri gasped as he heard something clunk. He couldn’t tell what it was, but it didn’t sound good. “ What was that?!?” Demitri shouted as he had no idea or felt anything that his manhood had been removed from him.  “Oh it just does that. It’s almost done now. Just take it easy.”  The words were not very calming at all. 


The machine picked up the severed penis from the platform and plopped it in a specimen jar with preservatives in it. The label on it was entered “Adult male king cheetah, 9”, Barbs absent, pierced at unknown time. Collected 12:46 pm Wednesday, April 6th 2023.” 


Having finished collecting and labeling the sample. It hid inside the machine. The ring at the base started to send out some metal of some sort and started to repair the end of the severed penis. It looked as if that’s how it had always been. Having finished the repair to the stump of a former manhood, the ring loosened and fell off to be gathered by the machine. All the little gadgets retracted into the tall metal wall and loosened its grip on the trapped bit. 


The release of his testicles and sheath was a relief to Demitri who quickly pulled them out of the hole. It had been a mistake, but things seemed to be fine, unaware there was something missing from his plump sheath. “ That was extremely unpleasant.” Dr. Yeager released the straps and let Demitri collect himself. 


“Not too bad I hope. Sorry for the discomfort. Here’s your dollarbucks.” Dr. Yeager handed over the $1,000 and let Demitri get dressed. It was a few minutes before the cheetah was ready to head back out to the street, $1,000 richer and none the wiser. Dr. Yeager escorted Demitri to the door. “Thanks for participating, and tell your friends about the easy money.” 


Demitri nodded and went on his way to continue looking for demons to hunt, and $1,000 richer. He can finally get some of the upgraded equipment he needed, and none the wiser that all it cost him was his fabulous feline phalli.




        Dr. Yeager went back to the machine and collected the nice specimen Demitri had unwittingly donated and put it on the shelf in his office with the 25 other specimens he had collected this week. “Turns out offering counterfeit dollarbucks is a good incentive for blokes to come by and add to my collection.”


The End. 😈