A friend of mine said he and his son were at the grocery store
when his son (about 9) asked him what "Oriole sex" was.  I
told him the store wasn't a proper place to talk about it, but 
I'd explain it to him on the way home.  On the way, I decided to 
tell the truth and explain it fairly graphic and clinical.  I thought
I did pretty good until my son said, "Oh, you mean like a blow
job, huh?"