Sexilia ("Sexi") is a pop star and sex addict; Riza is the gay son of the Emperor of Tiran (a fictional Middle Eastern country). Both are strolling around Madrid's flea market, aiming to pick up lovers. Sexilia takes two men for an orgy, where she is the only woman. In the hope of curing her nymphomania and her fear of the sun, she is undergoing psychotherapy. However, her psychoanalyst, Susana, is far more interested in sleeping with Sexila's father, Doctor de la Peña, a Gynaecology specializing in artificial insemination. As the doctor is frigid, Susana does not have a chance with him. One of Doctor de la Peña's patients is Princess Toraya, the ex-wife of the former Emperor of Tiran. Flicking through a magazine, Toraya discovers that her stepson Riza Nero is also in town. Thanks to treatment by Sexilia's father, Toraya is now fertile for the first time in her life. Since the emperor's sperm is currently unavailable to her, she will settle for that of his son, Riza, whom she attempts to track down.