One of the girls new favorite thing to do is to pretend to change each others diapers. They each take a turn laying down on the diaper changing pad while the other one changes the diaper. Then the switch. LOL They are both so fascinated when I change one of their diapers too. I will say, "let's go change your diaper Lucy" and everyone comes running like there will be an ice cream cone waiting or something. Then of course they have to say bye bye to the dirty diaper as I throw it away. These kids sure are funny! To bad they won't really change diapers.