He Finally Clued In

Waiting for a table at Chili's today. Noah sitting next to mommy on a bench:

Noah: (rubbing mommy's tummy) Mommy, are you going to have another baby?
Mommy: Yes, I am. Is that ok?
Noah: Yeah, it's ok. What is it?
Mommy: We'll have to find out. What do you think it is?
Noah: It's a girl baby.
Mommy: Would you like to have a baby sister?
Noah: No, I don't want anymore.