The clatter of the lock echoes through the empty cell block, signaling the start of the nightly ritual. Inmates, deprived of human touch, retreat to their showers, their hands automatically reaching for their cocks. One, lean and wiry, leans against the wall, his ass cheeks clenching as he frantically jerks off. Another, broad and muscular, sits on the cold floor, his hand working his long, thick cock, his other hand cupping his heavy balls. The sounds of wet, eager masturbation fill the air, a symphony of loneliness and desire.