In the heart of an Australian family, Audrey Grace, the cute and kinky stepsister, sets out to dispel her stepbrother's notions about her sexuality. After being caught with her fingers deep in her wet pussy, Audrey decides to prove she's not a lesbian. She seduces her big stepbrother, her American family taboo playing out in a steamy, horny encounter. Audrey's beautiful body and big booty drive her stepbrother to fuck her hard, with her cheating ways and kinky nature pushing them both to the brink of ecstasy. But can they keep their American family sex a secret?