A daring exhibitionist takes his kink to the streets, inserting a urethral sound into his engorged cock, the metal glinting in the sunlight. He moans softly, pushing the sound deeper, feeling every ridge and bump. His body trembles as he reaches the edge, pulling the sound out and replacing it with his own throbbing flesh. He lets go, pissing freely, the warm liquid cascading down his leg, leaving a trail on the pavement. Finally, he strokes his cock, cumming in the open air.