Me: Jonas, look- here you weren't even born yet!
Jonas: I was in your tummy drinking you?
Me (Laughing): Well, yeah, kind of!
Jonas: Oh, I know- you were like a cow, and I get drink from you.
Me: HA! Yeah, kind of. See you were in my tummy and you grew from very small to big and then you came out.
Jonas: I went in your leg? (He might have said 'out your leg')
Me (deciding we'd covered enough this morning): Well, um... want to go play a game?