I shared this with a friend recently - liked it so much I'm going to tell it again

Little Johnny was about 7 and came into the living room and said "where did I come from?"

Well mom and dad were in the room and mom said to dad "this one is all yours"

so dad clears his throat and assures him that his interest in the topic is quite normal and while he is a little surprised by him asking so soon - well he went into a very thorough discussion of the mechanics of it and also how it should be respectful and the best comes with love.

So after about a 10 minute lecture he felt pretty proud of himself for handling it as well as he did and asked Johnny if he had any questions..

"Well...Bill came from Cleveland...where did I come from?"