Lina watched hazily as the men all bent down into sieza and happily inserted their dick and balls into plastic tubes. She felt like the display was all for her enjoyment. She liked watching them obey the Gravax, it brought her pleasure too.

The devices flicked to life with a rhythmic hum. The boys all seemed to be enjoying it. Their cocks that had been softening post coitus all thickened and went rock hard again at the physical stimulation of the vacuum tubes. They audibly groaned their approval at the sensation.

They all came in short succession, shooting their creamy wad into the greedy machine. It gobbled it up, and spat it into a waiting semen container. But it didn’t stop there. They orgasmed over and over again, more times than a man would normally be capable of. It was like a never ending stream of cum. The Gravax devices stimulated enough semen production to empty out all of the sperm in their balls.
The teen was the first to be emptied, his balls making a small popping sound as they caved in. He ceased gushing semen like a firehose, and went limp with a dumb satisfied look on his face

Lina watched quite happily as her bull winced when his own balls imploded and wrinkled up, completely emptied of his seed.his tortured penis stretched and bruised purple by the overstimulation. He came one last time and then was dry. Lina bit her lip as she squirted in response to the sight. She thought it was sexy when a man obeyed the Gravax.

Sensors on the drones registered the completion of the act.
“You are u-unneeded extra weight .. for a-chieving orbit… you will be disposed.. of.” The braces girl coldly explained as their drones arced with red bolts of energy that crackled down the men’s heads and torsos. They screamed as the light intensified to the point their skeletons could be seen through their skin, and then they were vapourised. Their skulls remained attached to the drones, but the rest of their bones bounced off the metal floor.

The Gravax mercenaries pushed the bones to the disposal hatch and opened it, to shower the growing crowds of new livestock below with the bones of those now unneeded by the Gravax. Lina felt no compassion for the dead men, she was incapable of that now. The sight of fellow livestock being exterminated just made her semen addled brain horny again.