She knows what she has to do to protect her boy from you. There is only one way you'll stop terrorising her step-son and thats if she gives you her body to use as you please. First you make her squirm by making her spread her pussy for you so that her step-son can see it as well. She obediently opens her legs for you so that you can squeeze your fat cock inside her hole and fuck her right next to her frightened step-son... but she isn't prepared for what happens next- you tell her step-son to come closer and touch his step-Momma. You carry on fucking her as she begs her step-son not to listen to you, but he's so scared of you that he does as he is told. You then instruct him to take his trousers off, get himself hard and push his dick inside of his own step-Mommy. He ejaculates inside her after just a few thrusts and then you put it back up her to leave your load inside of her, too... God, your such a sick fuck! ;)