My son's interesting questions

Last week during our vacation my kids took advantage of our time together and asked a lot of questions.
One day we were all three in bed playing and talking and my son asked me:

He: Are you going to have more babies?

Me: I don’t intend too, why?

He: I would like to have another brother and another sister.

Me: What? Two more?

He: Yes

Me: And where would they sleep? Flower's room is small for two beds.

He: You buy two bunk beds, one stays in my room for me and my brother and the other one stays in Flower’s room for her and the new sister.

Me: You have all figured out… You are always fighting with your sister, are you really sure you would like two more around the house?

He: (thinking)…hummm better not.

Maybe we won't have this conversation again!