Powertool (1986)

Sentenced to thirty days behind bars and stripped of all personal possessions, Jeff finds himself locked up in a sexually charged penal institution. Distracted from sleep his first night by the cell facing his, Jeff can't help but watch as fellow prisoner John, worked up over his ex-girlfriend's dear john letter, aggressively and abusively takes it out on whimpering cellmate Michael. Seeing the need to play to his strengths, Jeff soon puts his massive endowment to adventitious use. As other inmates find sexual relief amongst themselves (such as Tony and Tom soaping up in the shower with Gary), Jeff first allows smoking inmate Jeff C., then Warden Bravo, to trade up for the privilege of experiencing his massive schlong. It gains Jeff early release, but upon returning home, he walks in on his not-so-faithful boyfriend Danny having a hardcore liaison with twink Brian in their bed. Disappointed, Jeff quickly and quietly packs his things and leaves, never to return, but a new young man in the street may mean he won't be out of a relationship for long.