baby in my belly

Evan plopped down on my lap, a little too close to my growing belly.  I reminded him to "be careful around mommy's belly so we don't hurt the baby."  He stood up and looked at me, actually at my belly, and asked to see the baby.  So I lifted my shirt and pointed, "Here's the baby in mommy's belly."  He stared for a minute and then lifted up his shirt and pointed, "Baby in my belly too!"