Ode to a sister

As we drove in the car today Sarah sang a song to Allison that went a little like this:

Allison, you are my best friend.
Allison, I love you.
You are a pretty girl.
You are my child.

I corrected Sarah and told her that Allison was her sister, not her child. And so the song went like this:

Allison, you are my best friend.
Allison, I love you.
You are a pretty girl.
You are my chi- sister.

I love that Sarah loves her sister so much.