HUNTA-455 What!? Seriously? My slutty sex friend of my slutty senior was my sister! My senior at my part-time job showed me a photo of his recent sex friend, and the person in the photo was my sister!? My sister grew up in a school with strict school rules from elementary school to high school, so she's super strict and damn serious. She always nags me about how sloppy I am, and to be honest, it's annoying...