Zero Gravity: Chapter 1

This story contains sexual activity that could be unsafe in real life - be aware and use condoms/protection to play safe!

The doctor and his assistant floated across the zero-gravity holding facility to the next chamber. "Notice anything different about this one?"

The young assistant looked through the glass. He saw the writhing and moaning figure, muscles straining, naked, sweating, thrusting his hips back and forth. The man's cock was encased in a tight plastic tube that seemed to pump a rig of rubber up and down, up and down the shaft, not quite fast enough to cum unless it continued for hours. Thick metal cuffs held the man's wrists, elbows, thighs and ankles spreadeagle, leaving the man floating in mid-air. A similar thick metal collar kept his neck locked securely. He was also gagged with a feeding tube that the assistant knew would stretch his jaw and conpletely prevent any speaking. "Hmm, he's shackled up like the other guys. But why aren't his cuffs connected to the walls?"

"No need," the doctor replied. "His cuffs are held in place by the magnetic fields. It's ingenious really. Look at how he struggles to pull his arms in, only to have them firmly pulled away again by the magnets. Mmmmm... Oh my, it looks like Mr Roberts' cock milker has a blockage in the tubes. It must have been sucking the poor guy all night! Let's go in."

The assistant reached for the door lock, but a tap from the doctor stopped him. "You're forgetting that the magnets will get us too if we have our uniforms on. So we'll need to strip before we go in. Oh look, he's seen us. Let's give our boy a show!"

The doctor peeled off his uniform, revealing a broad muscular chest with a thick layer of hair, while the assistant was lean and muscled with a treasure trail that made the prisoner's cock throb even more in its plastic tube.

"Good morning Mr Roberts!" said the doctor. "Looks like you had a rather uncomfortable night," he said as he disconnected the milker. Putting on a glove, he carefully extracted the prisoner's swollen cock, sticky with precum, and held it firmly while inspecting it. "Mmmm... looks good. Very good. But of course we'd better make sure there's been no lasting damage. Let me check his file... Ah yes, I remember. You're a kinky fucker aren't you Danny boy? Loves being talked to like a dumb jock slut, being whipped, having the cum smacked out of his monster dick. Mmmm... Shame we didn't bring the crop with us. Oh well. We can take care of him like we did with the other guys."

The doctor released the man's cock from his grip and pulled himself round the prisoner to hover behind him, while his assistant sandwiched the prisoner from the front.

The prisoner moaned as he felt his hard cock pressed up against the assistant's belly, trying to grind against the young man, but the man simply moved with his thrusts, teasing. He struggled as the doctor's own cock found his asshole and pushed its way in, making him gasp. He felt the doctor's hands grip his hips and pull him back and forth onto the doctor's cock, pounding him hard, each thrust making his cock spurt out more precum and making him groan in a haze of lust. Meanwhile the assistant in front of him had him wrapped in a right embrace, hands holding his head back so the guy could kiss and suck on his neck even while making sure his trapped cock didn't get any friction at all. He could feel the assistant's legs wrapped around his own, stopping him from thrusting his cock against the warm body in front of him. The doctor was speeding up now, ramming his thick cock into him harder and faster. "Moan for me slut. You love being used like this don't you? Cuffed and milked for hours and hours, then fucked until you cum so hard it'll feel like your balls are emptying the biggest load you'll ever shoot, you'll cum so fucking hard you'll faint and even then I'll still be fucking your hole, ahh, here it comes, AAAGH, UGGH, UUUUGH!"

With a final vicious thrust, the doctor slammed into the prisoner's hole, sending the man over the edge into his own massive cum. His cock swelled and erupted, shooting a hot thick load of cum up and all over the assistant's chest and his own, some of it hitting his chin. It seemed to go on forever, the man's cock firing shot after shot, over and over until finally his balls were empty.

He didn't notice as the doctor and his assistant locked his cock back into the milker and left him chained and sticky with cum for another day-long cycle of milking...