Rusty, a hairy, weathered granddad, finds solace in his unique fetish. His small cock twitches as he sits on the edge of the bathtub, a glint of mischief in his eyes. He unzips, his wrinkled, uncut dick popping out, already semi-hard. He grips it, stroking gently, feeling the familiar rush of urine building. His face contorts in pleasure as he lets go, a warm, golden arc filling the tub, the scent of ammonia filling the air. He's not alone in his perversion; the camera captures it all, his secret pleasure laid bare.