Keep in mind that Laura is pregnant, so Simon has babies on the mind.

Me (as I'm getting out of the shower, and therefore shirtless): Hi, Simon.
Simon: Hi, Dad. Big belly? (points at my belly)
Me: Hmmm... yeah, I guess so.
Simon: Have a baby? (still pointing)
Me (to Laura): (doubles over laughing) Did you hear what he just said? I don't know whether to laugh or cry.