A young man arrives home after serving in the army and when he arrives he finds his little step-sister in a red bikini, who receives him very warmly. The young man wants to take a shower, but what he doesn't know is that His little step-sister has always been in love with him and she will take advantage of the fact that her parents are not there to show her step-brother how perverse she has become, asking him to mistreat her, use her anus and her face as a vagina, as well as a toilet.