Alone in his room, a man bares his shaved cock and balls, ready for a masochistic solo session. He takes a whip to his sensitive skin, lashing out in painful, satisfying stripes. His urethra begs for attention, so he inserts a sound, twisting and pushing deeper, gasping at the intense sensation. His balls swell as he whips them, turning them a dark shade of red. The pain is exquisite, pushing him closer to the edge.