The room throbs with the bass of hardcore techno, setting the rhythm for these gay men to grind and rut. They're strangers, their faces mostly obscured in the dim light, but their bodies speak a universal language. They fuck hard, their sweat-slicked skin slapping together, the sound of flesh meeting flesh drowned out by their grunts and moans. They switch positions, the top pounding the bottom's ass, making it jiggle, before pulling out to spray thick loads of cum, the bottom greedily licking it up.