Kid Conversation

Overheard: while Lucia was playing in the dish soap bubbles:
 R: "Lucia, wanna pet my cat?"
 L: "No, I'm busy. I have to make snowman cookies for my Aunt Grandma."
 R: "Aunt Grandma?"
 L: "Yes, that's my aunt and my grandma."
 R: "Oh."
 L: "Yes. And she has two heads!"
 R: *repeating incredulously to me* "Mom, Aunt Grandma has TWO HEADS!"

(Where do they come up with this stuff?!?!)