Bedtime conversation

We were all four laying down last night during our bedtime routine...Daddy lying with Caitlyn and Mommy with Caroline. Most nights there is much talking........part of last night's conversation was funny and I wanted to remember it.
Caroline: "Mommy, did you have us when you were being married?"
Caitlyn: "NO, Caroline! God was still working on making us."
Caroline: "How does God make us?"
I was lying there pensive, trying to think of a very spiritual answer that would explain things on your level....when Caitlyn said very confidently.. "Out of water."
Caroline (taking her word for it) "Oh."