Who made the moon and sun?

This morning's conversation with my 3 year old son:

Him: Who made the moon and sun mama?
Me: God did.
Him: God did?
Me: Yep, he did.
Him: Wow! That's nice that God did make the moon and sun.
Him to his sister: Hey! Did you know that God made the moon and sun for us?
His sister: Ya, that's pretty cool.
Him: Ya! God is nice to make the moon and sun for us.

So sweet.