Mattie and Matthew initiate the most taboo of incestuous relationships: Mattie is Matthew's mom. He has no idea how complex the relationship really is, though, until the morning after.
She slowly rubbed her swollen head, and vaguely saw a figure in the corner of her eyes. When she looked closely, she found that it was a naked boy, and this boy was her own son. The scenes of yesterday finally appeared in the beautiful woman's mind. Although she didn't want to believe it, the fact was right in front of her. She was raped by her son.