Little Tommy runs into the bathroom one day to find his mother taking a bath. He points at her bush and asks, "What's that Mommy?"
A little embarrassed, she tells him that is is her sponge. Tommy is satisfied with that answer and goes back to playing with his toys. Some time later, Tommy catches his mother in the shower shortly after she has shaved her bush for bikini season. Tommy asks her, "Where is your sponge mommy?"
Again embarrassed she tells him that she lost it but will probably find it soon. Tommy is a little worried and promises his mommy that he will help her find it. His mother says okay, and goes back to showering. Soon, Tommy comes running back in and says that he has found his mother's sponge. "What do you mean you found my sponge? Where?"
"The lady next door has it and she's washing Daddy's face with it!"