C started asking about a year ago, "where do babies come from?" and we told him that God sends you one, to your belly. Not the most anatomically accurate answer, but I don't see the need for the sex talk yet, so it's the answer that has been perfectly accepted in our home. Once he had that down, C wanted to know when God was going to send us more babies; C thinks we need 4 more! I explained to C what a little miracle he is and he is more than enough, but if God wants us to have another baby, we just need to see if it is part of His plan. After that, bedtime prayers have consistenly ended like this:
"Amen. And God bless Nonna, Poppy, [a whole litany of others]...and please send me a sister AND a brother. Amen!"