Do u really love your sister or not?

I love my sister, but we hardly ever talk and we have nothing in common! I don't think it's possible for two sisters to be more opposite. We share our upbringing though and I think that's a bond that will always be there. I've heard of the bond between two non-related women being so strong that they consider each other a sister. It sounds great, but unfortunately I've not so far experienced it!