Control Group

Story by Jeeves on SoFurry

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A jackal attends a medical testing facility for what he thinks is a simple masturbation exercise to earn a few bucks. Soon however, he learns he has signed up for much more than just a 'little' of anything. ^^


This story was written for Serling as part of my February patreon request days. It contains M/Solo sexual acts with a consenting adult male involving multiple kinks.

Control Group

Dane couldn't believe he was here. The jackal squirmed and blushed, feeling the cool leather of the chair in which he was seated against his bare ass, intensely aware of his near complete nudity. The hospital gown in which he was draped barely covered his thighs, just managing to keep his genitalia hidden from view but leaving little else to the imagination. Everything about this place, from the rather exotic and adult natured images of 'art' plastered on the walls to the eager familiarity of the staff with whom he had dealt so far made him nervous. In fact, what made him most nervous of all was how particularly nice they had been to him. Of all the guys sitting out in the waiting room, ready to begin playing their part in this experiment, why should he receive the most warm and pleasant welcome? After all, what he was here to do... embarrassing as it may have been, wasn't exactly challenging.

All he had to do, all he was required to do for the one hundred dollar participation fee, was play the role of the control group. The supremely vanilla article in this study on sexuality and fetishes. All he had to do, while those around him were subjected to all the other various kinks upon the contracts they'd all signed, was fulfil the sole box that he had ticked. Masturbation.

A gentle click echoed through the room, signalling the door locking. The jackal whimpered, but relaxed slightly in his chair. He'd been told this would happen, more to keep other people from wandering in than to keep him from leaving early. Slowly, nervously, Dane began to remove his pale green smock. To strip off the one article of clothing defending even a fraction of his modesty, and render himself wholly nude in preparation for the test commencing. He looked around, blushing as he made eye contact with one of the many cameras recording him. His hands instinctively covered his crotch, member already erect with anxious excitement, but he forced himself to place them back upon the arms of the chair. At least until he was informed he was allowed to do otherwise.

It took perhaps two minutes of waiting before a patch of wall in front of Dane's leather chair lit up, and a large screen hidden within flickered into life. A soft, calm voice, clearly a recording, rang in the jackal's ears.

"Welcome. Thank you for signing up for today's experiment. You have opted for a range of the following fetishes and kinks to be applied to you."

A long list of fetishes appeared on the screen, and Dane waited for the ones he hadn't selected to be greyed out or to simply vanish.

Instead however, they remained. They flickered for a moment, but remained. A short while later, the voice spoke up again.

"As you are the only participant to have selected all possible options, a further disclaimer is required. Some of the following actions that will be performed upon you-"

Dane raised a nervous eyebrow, and a hand up into the air.

"Um, wait... I didn't.."

Unfortunately for him, the machine recording continued without any thought for his communication.

"-are more extreme than many of the conventional fetishes more commonly selected by participants. These may involve some degree of restraint and control of your motion, and freedoms. You have signed your name upon a legal document agreeing to be subjected to each and every one of these fetishes, however as-"

Louder, more urgently, the jackal sat upright in the leather chair and waved at the nearest camera with both hands, a rather stunned look on his face.

"Hello? I didn't sign up for all the treatments. I signed up for the control group! I specifically went through the kink list and ticked select none."

It was then that a horrible thought crossed Dane's mind.

He had ticked the select none box. He was certain of it. Well... ninety nine percent sure. But, that one percent worried him. It worried him because there had been another box directly beneath select none. One that read select all.

"-you have gone above and beyond, we are pleased to offer you a cash bonus if you complete the experimental process at your chosen level. Based on the number of fetishes you selected, that bonus will be as follows."

A number flashed up on the screen.

Dane choked.

Ten thousand dollars.

Ten. Thousand. Dollars.

"If you wish to revoke your permission, please exit the room within the next minute. You will be able to re-select a lower level of participation, or leave. Otherwise, please remain seated and still, and your experimentation will begin shortly."

Dane readied himself to stand up as the door clicked unlocked once again. To get up, walk out and leave. To call this whole thing off as a terrible mistake.

But...

Ten thousand dollars.

But he couldn't! All those kinks that had been on that list. They were so overwhelmingly extreme. Some humiliating. Some so extreme he couldn't even conceive of how they would be achieved safely, never mind how someone would be turned on by them.

And yet...

Ten thousand dollars.

On the screen, a number flashed.

Thirty. Thirty seconds to go. He had to make a choice. He had to.

Twenty.

Ten.

Oh god. He was still sitting down.

Five.

Why...

Four.

...was...

Three.

...he...

Two.

...still...

One.

The door clicked one more time, and immediately metal manacles sprang from small hatches that opened up in the arms of the leather chair. They wrapped tightly around Dane's wrists, locking him in place within the chair even as he felt two similar metal straps reaching up from the ground somewhere before him and wrapping around his ankles. He yelped, immediately convinced that this had indeed been a mistake and trying to stand. Trying to make his way to the door with the intention of knocking. Surely, someone would understand. Someone would realise he hadn't been thinking clearly.

The voice returned.

"Bondage and restraint fetish testing commenced."

For five minutes Dane was left to strain and fight in the chair, locked in place incapable of moving. He howled, he yelped, he called out that this was a mistake and he wanted to go home. But the more he felt himself going unanswered, the more he struggled and fought, the more he felt his heart racing... and his cock throbbing.

"Heat fetish testing commenced."

A nozzle emerged from the ceiling, and Dane gasped as with a hissing sound he felt gas being sprayed at him. He tried to hold his breath, but given how violently he had been thrashing around his heart rate was too high to retain what oxygen remained in his lungs for very long. Soon he found himself gulping down fresh air, and his eyes bulged as he did so. Once or twice in his life Dane had been subjected to the presence of a woman in an unmedicated heat, and on those brief occasions the rampant, desperate masturbation that had followed had been spectacular. But this... this was no passing whiff on the sidewalk. This was potent, concentrated pheromones belonging to a female jackal. He knew it by instinct. The smell. The mental trigger implanted deep in his most primal mind, now activated.

His hips began to buck up from the seat. His eyes bulged, and he howled, calling to his mate. Calling to the woman who had to be close by, just waiting for a man like him to sate her needs and fill her with a belly full of puppies. Pre-cum soon began to ooze down the twitching underside of his shaft, and the more his cries of desire went unanswered, the more frantic Dane's attempts not just to seek out this female, but to satisfy his own urges became. He humped wildly at the air. He reached helplessly for his own crotch with hands bound as ever by metal manacles. He even craned his neck towards his crotch, tongue extended and muzzle wide open, hoping to somehow lick and suckle himself to rapture.

"Exhibitionism fetish testing commenced."

Still overwhelmed by the scent of the female's heat and locked within his chair helpless to escape, Dane wailed in bashful dismay as his ongoing and uncontrolled humping was suddenly made public. Three screen images of three other rooms filled his monitor, and within them two guys and a lady stared in delight. Their overlapping voices rang out through speakers and into the jackal's ears.

"O-oh my god... is this happening in one of the other rooms? That's so hot."

"Holy shit, look at that guy go. Fuck."

"Mmmh... ohh... oh please, l-let me watch him cum..."

They watched. They masturbated. They described in lewd and voyeuristic detail what they wanted to do to or with him, and all the while Dane continued to thrash and buck and yelp in desirous glee and humiliation all rolled into one.

"Spanking fetish testing commenced."

Dane howled in pained excitement as the rear of the chair dropped out from beneath him, and suddenly a whirring motor began to hum into life. He barely had time to brace himself before a firm paddle comprised of some sort of rubbery material slapped him across the cheeks of his ass. The motor continued to whir as whatever the paddle was attached to span round, and soon it spanked him again, a little harder. Then harder. And harder still.

Within a few minutes, the jackal was drooling and groaning in pained ecstasy as he listened to the near constant slapping of the paddle making contact with his ass over and over again, provoking such extreme sensation that it was driving him desperately close to orgasm. Before that in combination with all the other fetishes piled onto him so far could do the job though, another added itself to the list.

"Electro-stim fetish test commenced."

A strange purple dildo-like device with a bulbous tip rose up from the ground towards the jackal's balls. As soon as it touched itself to his flesh, a hum followed by a discharging snap of electricity tore through the room, and Dane screamed as a surge of cum arced high into the air from his straining cock. Another loud hum followed, and as he howled in pain another jolting wave of his seed surged skyward. By the time it happened a third time though, Dane didn't need the power of the electro-shock device to pleasure him further. He let loose one long, ear-splitting yelp, and much to the joy of the trio of voyeurs still watching his increasingly complex and kinky actions, he began to cum.

"Ohhhgodyes! Aaahhhyes! Yesssaaahhhhhhhfuck!"

Dane wailed as thick ribbons of cum lashed out and sprayed themselves across the length of his torso. He saw stars as he imagined filling his heat stricken lover's pussy with fertile cum. He tugged at his restraints, whimpered happily at the moans and cries of his voyeuristic viewers, yelped and squealed at the spanking and shocking which continued throughout his peak. And then... then it all stopped.

The screens went silent. The spanking and shocking ended. Even the room's air was cleansed by a powerful rush of cold and obviously fresh oxygen being pumped in from elsewhere as the old, pheromone laced air was drawn away. Only the bondage holding him in place remained as he shuddered and gasped, stained by his own cum, sore and sensitive, but so overwhelmingly satisfied in a way he hadn't believed possible before today.

He lay limp in his chair, gasping, blushing, grinning uncontrollably.

Until...

"Over-stimulation fetish testing commenced."

By Jeeves

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