of little brothers and dogs

Here's a story recounted by a friend from church:

"I was talking to Elijah about having a little brother, and that my little brother is now so big that he has his own baby. This is what followed:

Elijah: Was he in your tummy?

Me: Who? My brother?

Elijah: Yeah.

Me: No, he was in my mommy’s tummy.

Elijah: Oh. (thoughtful pause) What about your doggy? Was she in your tummy?

Me: (suppressing laughter). No, she wasn’t in my tummy. Baby dogs come from mommy dogs.

Elijah: Oh. So nothing was in your tummy?

Me: Nope. Nothing was in my tummy.

He seemed truly disappointed that I couldn’t have puppies. Maybe he was hoping for one of his own?"