So Elise was walking up the stairs a few days ago. I was following behind her. She was, as she often is at the end of the day, naked. I saw her little tush in front of me and I lightly tapped it. She stopped quickly and turned around with a very serious look on her face. "Mommy. You cannot touch my privates. Only me and the doctor can. " Pause. "But you can touch your privates! In the shower...that is where I touch mine!" Then she turns and happily continues her way up the stairs.