The late-night metro rumble masks their illicit rhythm. A stranger's hands explore her body, finding her wet and ready. He lifts her, impaling her on his thick cock, her legs wrapped around him. She bites his lip to muffle her cries, feeling him stretch her tight pussy. The train's sway rocks them, adding to their carnal dance. They're strangers in the night, fucking with wild abandon, their pleasure building with each jolt of the tracks, until they're both tumbling over the edge, breathless and spent.