Forbidden incest is not so difficult with a step-sister who is not related by blood, so it didn't take long for me to cross the line. If the "woman" closest to me is a step-sister, I can only think of her as a sexual object. From the moment my parents introduced me to my step-sister, I fell in love at first sight and was waiting for a chance to embrace her. "I'll take full responsibility, so it's okay to cum inside, right!?"