In the dimly lit room, a lone figure, his face obscured, lies back, legs spread, inviting exploration. He's an amateur, but his hunger for hardcore pleasure is evident. With a gloved hand, he lubes up, then slowly, tantalizingly, inserts the tip of a metal sound into his urethra. His breathing hitches as it slides deeper, the sensation intense, bordering on pain. Yet, he's committed, pushing it further, feeling every millimeter as it stretches his sensitive opening. He gasps, his body tensing, then relaxes as he finds his rhythm, fucking himself with the sound, chasing the taboo thrill of urethra play.