Jake was already sweating when the straps locked his wrists and ankles to the steel frame. Naked, spread wide, his cock hanging heavy between his legs. The dom circled once, checking every cuff, then taped the conductive pads right onto his shaft and balls. Two more went under the head of his dick. Wires ran from every pad straight into the black control box.
"Ready to get milked, boy?" the dom said, flipping the first switch.
A low buzz hit Jake's cock. His shaft twitched and started to swell. The second dial went up and a sharper pulse rolled through his balls. He grunted, hips jerking against the straps. The machine didn't care. It kept feeding current in steady waves, making his cock throb and leak.
A clear tube slid over his erection and locked in place with a rubber seal. Inside the tube, soft silicone rings began to stroke up and down while the estim pads fired in time with every stroke. Jake's cock was forced hard in seconds, veins standing out, the head already dark and shiny.
"Fuck," he growled. The first real shock hit right under the crown. His whole body snapped tight. Cum spurted without warning, thick ropes splattering the inside of the tube. The machine didn't stop. It kept stroking and zapping, dragging the orgasm out until Jake was shaking and swearing.
The dom watched the readouts and turned a knob higher. The pulses got meaner, shorter, more frequent. Jake's cock stayed rigid. Another load was already building. His balls drew up tight against the pads. Electricity danced across the sensitive skin, forcing another hard spurt. Cum pumped out in messy pulses while the tube kept milking him dry.
He lost count after the third orgasm. The machine just kept going. Every time his cock tried to soften, the estim kicked harder and the sleeve stroked faster until he was rock hard again.
Sweat ran down his chest. His thighs trembled in the cuffs. The dom added a thick plug in his ass wired to the same box, so every pulse in his cock was matched by a deep throb against his prostate.
By the fifth load, Jake was hoarse from yelling. Cum dribbled steadily now instead of shooting, but the machine didn't slow. It milked whatever was left, electrodes firing in random patterns so he never knew when the next jolt would hit. His cock looked swollen and angry, shiny with lube and cum, but it stayed hard because the current wouldn't let it rest.
The dom finally shut the main power down after what felt like an hour. Jake hung in the straps, chest heaving, cock still twitching inside the tube. Thick white cum coated the inside and dripped from the end. His balls ached, emptied.
The dom leaned in close. "One more round tomorrow. Same machine. Same settings. You'll take twice as much."
Jake's spent cock gave one last weak pulse at the words. The straps held him tight. The wires were still connected. He knew the machine would be waiting.
