Hot brunette milf is blackmailed and facefucked by her husband's son

So I and my dad's new wife have always gotten along, but everything changed when I caught her on the phone telling her sister how the only reason she married my dad was for his money. I confront her about this and tell her the only way for me to keep this secret is if she would allow me to face fuck her. She agreed and I face fucked her till my cum choked her.