Your mom enters your room late at night, she's noticably tipsy and she starts coaxing you to let her stay in your room because she's just had a fight with your dad. During the night she somehow forgets all about taboo and rides you, in her tipsy state she even lets you cum in her. When you tell her the morning after, she doesn't fully believe you, but admits that she has kind of a full feeling in her cunt. As if someone has stuffed her good. After she's come to terms with the fact that she has already fucked her son, your mom figures it's a good way to get revenge and keep you on her side by fucking you again, even asking you to impregnate her so you can start a new family together.