He stood, balanced, though just barely. By force of will, the naked young man tried to remain absolutely motionless. But to do that was almost impossible. It was the point of his bondage, of course.

He stood erect, his legs spread wide by a metal bar strapped between his ankles forcing them apart. His arms were pulled behind his back, strapped together at his elbows and wrists, forcing his well-defined chest forward.

Sweat dripped down his torso and his bound arms all the way to his slim waist. He was gagged, his mouth stuffed with a ball gag and covered by a thick leather strap. Otherwise, he was completely nude.

That was the standard stuff, in and of itself arousing as it silenced and commanded his naked body, offering his shaved and bound cock and balls in wanton invitation. But he had asked his mistress to grant him an evening of consensual torment which he would not forget, and so there was to be more tonight — much more!

On each of his erect nipples was a small spring-clamp. These connected to a thin leather strap, which then connected together in a heavier strap. This went up to the ceiling rafter and over a pulley there. At the other end of this strap from his nipples, dangling just a few feet in front of the young man, was a metal weight. It rested no more than an inch above a box with a metal plate on its top. In fact, if he weren’t leaning back and away, his sore and distended nipples pulling at the strap, the weight would rest on the box. The young man arched himself backward, trembling, struggling to keep the weight away from the box. He had good reason to.

From the box ran a wire that wound along the floor until it reached the spreader bar that was forcing the young man’s legs apart, exposing his tormented cock and balls. The wire then continued up from the spreader bar, and was attached to a strap that was wrapped firmly around his bound scrotum. If he slumped forward, relaxing his pose, the weight would drop down onto the box, completing an electrical circuit. When the circuit was completed, the box would send a mild shock to his balls — just a few volts but enough to make him squirm from its fiery bite. If the weight stayed on the box, the current would continue for twenty seconds, stop for twenty seconds, then start again, and so on, until the connection was broken.

So he had a choice, this young man in bondage. He could yank at the strap, causing the clamps to bite at his nipples, or relax and send the shock ripping into his tormented balls. When that happened, he found that the sensation brought him to the edge of orgasm.

He would buck and squirm, and the weight would bob up and down and nick the plate, and then the shock would hit him like a whip lash. But he couldn’t take much of the shock, so, in spite of his arousal, he would strain his muscles and arch his naked body, pulling the weight away from the box. Back and forth he would sway, slumping from exhaustion, moaning into his gag when he heard the clank of the metal plates making contact, then steeling himself for the shock to his balls. His tensed body glistened with sweat.

His tormentor stood in the doorway watching him. The young man looked up in fear when she entered, then lost his concentration and slumped forward. Then he arched beautifully and wailed in desperation as the current pulsed through his balls. He was wild with passion, naked and bound and tortured into a frenzy by this clever scheme. And the fact that he himself determined what happened, in a helpless, tormented way, only added to his stimulation.

His mistress was contemplating a new addition to his bondage predicament. She rummaged through a dresser and came up with two small boxes, also dangling wires. She connected these wires to two small jacks in the bigger box, then bend down between her captive’s splayed legs.

“Up on your toes,” she commanded. The young man moaned but obeyed, arching up on his toes until his heels cleared the floor. The mistress slipped one of the smaller boxes under each heel. Each box had a small button on its top, no more than a half inch from his young victim’s foot. If he dropped down from his toes, his heel would push the button.

“Better stay as you are,” she teased. “If either heel touches those buttons, it’ll up the voltage to your balls another notch. Keep your feet down and it’ll keep upping the current.” The young man groaned deeply in frustration and agony as he heard this. Even though he was an athletic guy, it was hard to stay on his toes with his legs spread so wide and with his torso arched. But he would try. He didn’t want the shocks to get any worse.

“It’s ten o’clock,” his tormentor said. “What do you say I leave you here until — oh, I don’t know — how about midnight?” The young man looked at him in horror and moaned into his gag. He wasn’t watching the weight as he did this, and it dropped and touched the box. The shock hit him, and he snapped to attention and arched backwards in response. Too far backwards. He got his weight back and dropped off his tiptoes, and his heels — both of them — hit the buttons. He squirmed anew as the current surged a little higher until, after twenty long seconds, it stopped. He was panting, his breath ragged and nostrils flaring. Even though the current had stopped, he kept squirming, aroused, his cock twitching, so hot he didn’t care for anything except the orgasm about to burst through his loins.

His writhings took him forward again, and the weight touched down. This shock pushed him over the brink. He would not be denied. Eyes wide, wailing into the gag, fingers clawing at his ass, his hips thrust forward, he came with an all-consuming violence. Wave after wave rippled through his body, which bucked and writhed in erotic abandon as seemingly endless streams of cum spewed from his engorged cock.

The mistress admired the naked young slave spasming before her. His head was thrown back, and he shook it back and forth as he came. Insistent moans came from his gagged mouth. His muscles strained against his bondage, the weight scraped along the box, and his torso writhed delightfully. His balls tensed and his cock a deep red, his juices dripping down its shiny thick length. He was a spectacle of unchecked eroticism.

When his climax subsided, he slumped again and fell heavily onto his heels, only to arch upwards again when yet another shock hit. He looked up through frightened and exhilarated eyes, his mind and body saturated with the intensity of his pain and pleasure.

His mistress smiled at him, flicked off the lights, and closed the door, leaving him to his frenzy of torment.