In a daring display of self-control, a man sets out to block his cum from escaping. With a glint in his eye, he lubes up a urethral plug and inserts it, his body tensing as it slips into place. He strokes his cock, the pleasure heightened by the restriction, his balls swelling with pent-up cum. He's a sight to behold, his body glistening with sweat as he fights the urge to orgasm, his face a mask of concentration. The plug pops out with a wet squelch, and he finally lets go, his body convulsing as he releases a torrent of cum, the force of it coating his chest and dripping down his abs.