It may be a "Brave New World" in Season Five of Grey's Anatomy for Meredith, Cristina and Izzie, but there's still time for some lighter moments. In this case, sitting on a couch!
Meredith: You keep a diary? Have I not known all this time that you keep a diary? Don't be shy, I think it's cute! Derek: It's not mine. Meredith: Who's is it? Derek: Your mother's.