Twins?

The time has finally come. Since Katelyn is catching up so quickly to Sara in height, I was wondering when people would start asking me if they are twins. Well it happened all at once... two people asked me in the same day.. then several since then. They were laying on the couch today and I was just struck by how they do sometimes look to be the same size. They even share shoes and shirts now! I love how convenient sharing clothes is!