Best friends, or is it "only" friend?

This is my best friend, Kris, she and I have done shelter, foster for nine years together. Infact that's where we met. We have a lot of fun together and most of our kids are the same age. Except for the newest little Weeks and there won't be a Pace that age, sorry, Kris. We are best friends, but sometimes we just have to draw the line! Our kids tease us about the fact that we are each other's only friend, but I wouldn't care if that was true, because she really is my best friend.