Brother broke his hand and cannot masturbate a member and therefore he asks his younger sister to have sex with him. At first she does not agree to incest with her brother, but then she enters his position and gives a positive answer. As it turned out, the sister has sex perfectly and the brother does not understand why he had not fucked her before. Now his mistress will be a young sister, ready to help his brother in difficult moments. Only now, during their incest, the mother constantly go and they have to hide under the blanket.