The other morning, Mommy asked Luke to "entertain" Harper while she ran about like a crazy woman. She stopped to snap this picture - if you look closely, you can see that he's saying "Chooooooch." Harper seems to find him to be nothing short of mesmerizing.
A few minutes later, Luke called out, "MOMMY! Look! Chooch and I are holding ha-yands!" When asked if he wanted a picture taken he said "yeah!"