Bernard, a curious and adventurous teen, decides to explore the city's public transportation system, his curiosity piqued by the thought of the thousands of bodies that have passed through the same seats. As he sits on a crowded bus, his mind wanders, and his hand finds its way into his pants. He strokes his cock slowly, his eyes closed, imagining the countless people who have left their mark on this very seat. The bus lurches, and Bernard's grip tightens, his breathing becoming ragged. He's close, his body tensing, when he feels a hand on his shoulder. Startled, he opens his eyes to find an elderly woman staring at him in disgust. Bernard, embarrassed but exhilarated, quickly zips up and steps off the bus, his heart racing from the close call.