In Buenos Aires' seedy underbelly, a busty Latina transsexual, hungry for more than just a vaccine, finds herself in the clinic of Alberto Fernandez, a notorious pijudo with a penchant for tranny anal. He slips her the "vaccine," a thick, veiny cock, and she greedily swallows it, her ass clenching around his length. He fucks her raw and hard, her cries of pleasure echoing through the clinic. Her own cock bounces, leaking pre-cum as he stretches her wide. The "vaccination" ends with a facial, her face dripping with his hot, creamy "serum," leaving her wanting more.