Babysitter

Mom: "LG, we need to clean the house because a babysitter is coming tonight."
LG: "Oh, who?"
Mom (not remembering her name): "One of the girls that ran track for Daddy last year at FPD."
LG: "Oohhhh, you mean, one of Daddy's girlfriends?"
Mom: "uuhhh, yeehhh????"