You ever see two people and wonder how those two are possibly friends? I once saw a black guy hanging out with a white dude wearing a confederate flag jacket. I don't mean to make any big assumptions about people who sport the confederate flag, but it seems like someone might be confused in that situation. It's kind of like when you see a cat and a dog sleeping together. Good on you two for getting along, but I'm still shook.
In this case, these two girls are clearly friends for a reason. One of them thinks that every cat is their best friend, the other thinks they are a cat. That's the good thing about cat people. We aren't afraid to wear cat apparel, and when we do we make tons of other cat friends.