In the solitude of his cell, a prisoner surrenders to his carnal desires. His hand wraps tightly around his stiff cock, jerking it furiously. The room is filled with the sound of his quickening breaths and the slap of skin on skin. His body tenses, and with a guttural moan, he releases, his hot semen splattering onto the cold floor. He looks down at the mess, a wicked grin spreading across his face, satisfied in his private, forbidden indulgence.