One or Two Children?

Kids ask the darnedest things in the strangest of places. Pulling through the bank drive through today, attempting to extract money for a pricy plumbing job, Kenzie (now 8 years old) decided to ask a question. "Mum, I've wanted to ask you for a while. If you have one child, do you have to do it to have another child?" It took me a while to clue in as my brain is in too many places. "Have sex?" "Yes." Taylor pipes in, "not if you have twins." Kenzie, "ew." Taylor, "I'm only going to have one child if I have a lazy husband like daddy used to be. I'll have two if I have a husband who helps."