Alex waited to be released from his belly stretching bondage and as he heard the handle on the door click he knew that Brian was coming in. He was almost in ecstasy as he knew the fill would be released from his abdomen.
But Brian pushed a contraption in so that Alex could see the rolling drum.
Brian took a couple of hoses from the contraption and hooked them up to his pecs and strapped them around him.
He took another hose and hooked it up to his cock.
Brian took the plug and plugged the drum in and flipped a switch.
It wasn't a constant suction more of a pulse as his cock and pecs became more and more stimulated.
Back in a couple hours Brian said and with the lights being shut down Alex came for the first time in days.
The pressure in his belly surged as he convulsed from the orgasm. This stimulated him even more.
Hours later the milking machine took several loads from Alex when Brian returned and emptied Alex's belly preparing the slop to feed the pig.
Alex's nipples had grown larger and longer as did his cock. And they would grow longer with every treatment.