"Physical Attraction, Chemical Reaction" Sneak Previews

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Below is a funny sneak peak at tomorrow's show, Episode Seven of Season Four of Grey's Anatomy, entitled "Physical Attraction, Chemical Reaction." Meredith and Alex discuss his hooking up with Lexie, while George and Izzie confide in Mer about their sexual problems with the other. Mer's facial expressions are priceless...

[youtube]http://www.youtube.com/watch?v=Vc3R9z1tchM[/youtube]

Follow the jump for another video clip from Thursday's new episode, in which Cristina lectures intern Lexie about not talking to her about her personal life, right as a baby and her mother both arrive, in need of urgent care...

[youtube]http://www.youtube.com/watch?v=Df61Vq2woXA[/youtube]

Looks like a good one tomorrow. If you're interested, you can always see more Grey's Anatomy clips, promos and fan videos in our video section. If you are so inclined, use our Contact Us form to suggest one that we don't have!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.

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Grey's Anatomy Quotes

CRISTINA: "There's a club. The Dead Dads Club. And you can't be in it until you're in it. You can try to understand, you can sympathize. But until you feel that loss... My dad died when I was nine. George, I'm really sorry you had to join the club."
GEORGE: "I... I don't know how to exist in a world where my dad doesn't."
CRISTINA: "Yeah, that never really changes."

MEREDITH: "You don't get to call me a whore. When I met you, I thought I had found the person that I was going to spend the rest of my life with. I was done! All the boys and all the bars and all the obvious daddy issues, who cares? I was done. You left me. You chose Addison. I'm all glued back together now. I make no apologies for how I chose to repair what you broke. You don't get to call me a whore."
DEREK: "This thing with us is finished. It's over."
MEREDITH: "Finally."
DEREK: "Yeah, it's done."
MEREDITH: "It is done."