In the heat of the moment, a horny gay man can't resist the allure of a used, semen-stained bikini bottom. He slips it on, his hard cock straining against the fabric, before pulling it down to reveal his throbbing member. With a thick, steady stream of pre-cum dripping from his slit, he strokes his length, the filthy underwear rubbing against his skin, heightening his pleasure. His moans fill the room as he speeds up, his balls tightening, ready to explode. With a final grunt, he unleashes a torrent of hot, sticky cum, coating the already dirty underwear in a fresh load.