Baby Brother or Baby Sister?

I asked Wyatt if he would like a baby brother or a baby sister. He said, "Another one?" I said yes. He said,"Elliot needs a friend?" I said yes. I asked him again if he would like a baby brother or a baby sister. He said,"A brother." I asked him what should we name the baby. He said, "Walk. That one crawls *points at Elliot*. We need one that walks" *moves his fingers in a walking motion*.