Conversation with Addison

This morning as I pulled away from J.J.'s house(she is the lady that takes Avery and picks him up from school) Addison and I had the following conversation.
Addison: Is that my new brother?
Me: No, you only have Avery and he is old.
Addison: Me want a new brother.
Me:Why?
Addison: Me want a baby for home.
Me: Who have you been talking to?
Addison: Papa
Me: Papa?
Addison: No Hamma(Grandma).
Me: Thinking to self-sounds more like his teacher Ms. Alice.