Brother/Sister

Last night, before bed, Libby was talking about how cute one her friend's brother is. I asked her if her brother was going to be cute (because she still insists she is having a brother) and she answered that yes, her brother was going to be cute. Then, I thought, maybe I should prepare her for the possibility of another sister so I asked, "What if you have a sister, will she be cute?" Libby paused for two seconds with a look of disgust on her face, then she smiled and said, "My sister is already cute!"