The clanking of keys and the heavy tread of boots signal the guard's approach. The inmate, caught off guard, quickly turns, but the guard is already upon him, her hands gripping his hips, pushing him roughly against the cold, hard wall. The inmate's heart races as the guard's strong fingers trace the curve of his ass, then suddenly, a sharp, stinging smack. The guard's hand comes down again and again, each blow echoing through the cell, leaving reddening welts on the inmate's bare skin. The inmate's breath comes in ragged gasps, his body tensing and relaxing with each impact, a strange, forbidden pleasure building with each stinging smack.