In this taboo tale, a brother and sister, both horny and frustrated, find themselves alone together. They start by masturbating separately, but their voyeuristic urges get the better of them. Caught in the act, they argue, but soon their mutual desire boils over. Naked and aroused, they explore each other's bodies, the sister's tight pussy and the brother's thick cock aching for release. Just as they're about to cross the final line, a sudden intrusion forces them to abort their heated encounter.