On a deserted late-night train, a horny young man can't resist the urge to pleasure himself. He unzips his pants, revealing his hardening cock, and begins to stroke it slowly. The rhythmic motion of the train against the cold, hard seat beneath him adds to his arousal. He picks up the pace, his breath hitching as he nears climax. The doors open, briefly revealing an unsuspecting passenger, but the thrill of public exposure only fuels his desire. With a final, shuddering stroke, he releases his load onto the train floor, leaving a sticky mess for the next passenger to discover.