Cristina is motoring in this photo from "No Good at Saying Sorry," the April 30 episode of Grey's Anatomy. Where do you think she is headed?

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!

Drs. Webber and Yang in a photo from the October 6, 2011 episode of Grey's Anatomy.

Cristina Yang in a photo from "Stand By Me," the 18th episode of Season Five.

Cristina and Meredith in a moment from "New History." We're glad they are interacting again for us to enjoy!

Cristina and Mer at work on Grey's Anatomy.

Cristina didn't give him many reasons to be. Her antics are out of control.

Meredith and Cristina step out for some coffee on Grey's Anatomy.

Lexie Grey might be onto something with this new look. But seriously folks - that's a lot of blood Nick lost. The doctors tried in vain to save him but it was a lost cause at the end.

In a photo from "Brave New World," from Season 5, Cristina and Meredith share a lighter moment. These two have always been close, which we love.

Callie, Cristina and Owen are ready to get their operating on in "These Ties That Bind," from the fifth season of Grey's Anatomy.

A concerned Mer and Cristina on the 4/4/13 episode of Grey's Anatomy.