Biflatmate, the exhibitionist and water sports enthusiast, spots his step-son, Shyflatmate, in the pool's public showers. Egged on by his 'gay-encouragement,' he strips down, his circumcised, fat dick tenting his shorts. He begins to piss, aiming at Shyflatmate's white, naked body. The shy twink, initially taken aback, soon finds himself jerking off, his cock hard under the stream. Biflatmate, pleased, continues his piss play, soaking Shyflatmate's body, encouraging him to embrace his bisexual desires in this public, voyeuristic setting.