Does Daddy Know This?

Conversation between me (mom) and NayNay:

M:  NayNay, your so big!  Are you going to be a daddy some day?

N:  Yes.

M:  What do you have to do to be a daddy?

Naynay ponders this for a moment.

N:  Have a big head.  Daddy has  big head.  

Hmmm.  I wonder if daddy knows this.