In the quiet of his room, a curious 18-year-old discovers the pleasure of his own body. His big, uncut cock twitches in his hand as he explores its length, marveling at the sensation. He pumps his hips, pushing into his own grip, his breath coming in ragged gasps. The room fills with the sound of his hand moving over his slick skin, the wet sound of his palm slapping against his tight balls. His body tenses, his abs clenching, as he feels the familiar heat building in his loins. With a final, shuddering stroke, he comes, his cock pulsing as he coats his hand and stomach with his warm, sticky cum.