Your Aunt comes into your room while visiting. She sits on your bed and tells you she thinks your mom is jealous of the bond you have with your aunt. Your aunt tells you casually that her and your mother used to fuck your grandpa. She tells you "everyone likes to keep it in the family". The dirty taboo talking quickly turns to undressing and sex. She takes the lead at first and fucks you gently. Then she allows you to fuck her until you cum. She lets you cum inside her. She remarks that you should fuck her and your mother next time.