My stepsister is a brat. She thinks that she is such hot stuff just because her Step-Mom has my Step-Dad convinced that I’m not responsible, and put her in charge when they are away. I’m 20 years old for fuck’s sake, and she’s only a year younger than me. Who the fuck does she think she is? I was pissed as hell when I walked into my room to find her sitting in my chair. The parents went out for a movie date, and here she was, “in charge” of me again.