We Don't Say Sexy

Picture this:  Tyson is leaving for work:

Tyson: "Bye guys!  Bye Honey!"
Me: "Bye Sexy!"
(door closes)
Caleb: (laughing) "Bye Sexy!"
I roll my eyes thinking I have got to stop using that word.
Josh: "Caleb, we don't say sexy."
Caleb: "Why?"
Josh: "Little kids don't say that.  Only mommies and daddies call each other that."
Caleb: "Oh."
Josh: "I can't wait until I am old and married and my wife calls me sexy."
Caleb: "Me either (sounds like ee-der).  My wife is gonna call me dat all dee time."

Yup.  Gotta love having kids.