In the quiet of his cell, the prisoner's thoughts turn to the carnal. His cock, already hard and aching, receives welcome attention as he begins to stroke. The rough texture of his calloused hands provides friction, sending jolts of pleasure through him. He pictures the woman he desires, her curves, her moans, her tight, wet heat. His strokes become more urgent, his grip tighter, until with a final, guttural groan, he releases, his hot cum splattering onto the cold floor, a testament to his pent-up lust.