Sally, my only full sister, and I don’t have a lot in common. We both share fairly intense blue eyes, but otherwise we barely look related. She’s fair-skinned, blonde, and short. She looks just like our mother, Kathy. I’m darker, olive-skinned and brunette. I look Sicilian, just like my father. I’ve always been a little bit of a brute, big and aggressive. Sally and I have spent a lot of time together. For our whole childhood, we shared a room and sometimes a bed—and, for a short time when we didn’t have a bed, just space on the floor under a single pink blanket. Despite all of this time together, and despite the fact that I’m only a year and a half older than her, our relationship has always been strained. She’s more sensitive, analytical, and optimistic. I’m more quick to anger, more reactionary. She’s prone to posting inspirational quote memes on Facebook and I’m prone to rolling my eyes. Once, when we were teenagers, she made me angry and I shoved her hard, sending her flying into our closet. She was nothing in my hands. Seconds later, I felt horrible. I had wanted to hurt her, badly, and it had been so easy.