Kynodesme2's apartment transforms into a private dungeon as he prepares for his most daring solo session yet. Donning a leather harness, he lubes up a thick metal sound, his heart pounding as he inserts it into his urethra. The initial burn gives way to a satisfying fullness. Next, he attaches weights to his balls, the pull intensifying as they stretch and swell. With each movement, the sound and weights send shockwaves of pleasure-pain through his body. He grunts, his cock throbbing, as he teases himself closer to the edge, his body coated in a sheen of sweat, the room echoing with his ragged moans.