In this adult family role-play, my timid stepsister feels safe enough at home to lounge around braless in revealing clothes, but I cannot stop seeing her as a woman. When I finally touch her, I expect anger—only to find her squirming with pleasure. I tease her nipples every day until she becomes increasingly horny and hypersensitive, then move on to the rest of her body. She writhes, drools, and soaks her pussy before I finally push my cock deep inside. From that day onward, my adult stepsister becomes my regular sex partner.