I'm my own Grandmaw!

Max told me today that when he grows up into a man, I will have two Daddies. When I asked him why, he told me "When I'm grown up into a man, I will be a Daddy, and you will have Daddy, so you will have two Daddies." I told him that when he is a Daddy, I will be a Grandma. Wouldn't it be great if I could remember what his response to that was? Maybe I'll try to re-create the conversation to get the punch line. :)