Marty, alone and horny, finds solace in self-pleasure. He slowly strokes his shaft, feeling the heat build as he imagines a forbidden encounter. His fingers tease his tight hole, pushing in and out, matching the rhythm of his hand. Pre-cum leaks from his tip, making his grip slick and smooth. He lets out a low groan, his body tensing as he nears climax. Marty's breath hitches as he spills over, his seed coating his hand and abs.