The metro car is a furnace, the air thick with the scent of sweat and steel. A man, his ass on fire from the train's relentless heat, finds his thoughts consumed by the throbbing need in his cock. He leans against the window, the cool glass a stark contrast to the inferno behind him. His hand, hidden from the other passengers by his body, begins a slow, steady rhythm on his crotch. The train's jolts and jostles send waves of pleasure through him, and he can't help but grind his ass against the hot metal, seeking friction, seeking release. The train screeches to a halt, and he's left panting, his cock aching, ready to burst at the seams.