In the fourth installment of his series, Stuffguy, a burly bear with an uncut cock, indulges in a unique form of self-pleasure. He sets up a camera in the bathroom, donning a catheter for a peculiar twist. As he takes a leak, the sensation of warm piss flowing through his tube sends shivers down his spine. His cock twitches, and Stuffguy realizes this is turning him on more than he expected. He strokes his growing member, the sound of his own urination providing ASMR-like pleasure. Soon, he's fully hard, his cock throbbing with need. He removes the catheter, pumping his shaft furiously until he reaches the edge. With a grunt, he cums, ropes of semen splattering onto the bathroom floor, leaving him panting and satisfied.