A thick, uncut cock strains against denim, its owner's breath hitching as he scans the crowd for potential witnesses. He pops the button, revealing a massive, veiny shaft, and begins to work it with expert urgency. The street's noise fades as he focuses on the sensation of his rough hand against his sensitive skin. His body tenses, and with a final, powerful stroke, he spills his hot, sticky cum onto the pavement, a secret offering to the city's rhythm.