You just don't have conversations like this with any other age:
Sophie: Mom, Dad is your brother.
Me: No he's not... that would be gross. He's my husband.
Sophie (laughing): No he's not!
Me: Yes he is. That's what you call the man when he gets married. He's my babe.
Elliott: I'm her Prince Charming.
Sophie (turning to me): You're not a princess. You don't have a skirt!