Skull, a seasoned solo performer, explores the intense sensations of urethral sounding in this intimate Japanese masturbation session. He tantalizingly inserts a 3-inch urethral probe, geared with a special curve for prostate stimulation, into his geared-up urethra. With each gentle push and pull, he moans in delight, the pleasure building as he strokes his rock-hard cock. The combination of prostate stimulation and handjob sends him over the edge, leading to an explosive cumshot.