The steel door clanks shut behind him, sealing him off from the chaos of the prison yard. Alone in his cell, the inmate strips off his orange jumpsuit, revealing a body honed by years behind bars. His cock, already half-hard, throbs as he wraps a fist around it. He leans back against the cold wall, feet planted firmly on the ground, and begins to stroke. His movements are slow, deliberate, each one sending a jolt of pleasure through him. As he nears the edge, his strokes become faster, more urgent. With a final groan, he comes, his cock pulsing as he spills his load onto the cell floor.