step-son help to cum step-mom in share bed after handjob

The step-son can't rest in his room and comes to his step-mother to lie with her. She allows, but she didn't expect him to start jerking off. She wants to help him cum so that he doesn't prevent her from reading the book, but when she realizes that he doesn't cum for a long time, she decides that he will help her cum and sits on his big dick.