You are in bed with your soon to be wife, when she has to leave for pre wedding fun with her step-mom and step-sister. Her step-sister sneaks into the room and makes you fuck her because what is her step-sisters is also hers. After your new step-sister in law leaves, your step-mother in law comes in. She seduces you into fucking her too! After both have your way with you, your soon to be wife comes back in.