"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

[narrating] "At the end of the day, when it comes down to it, all we really want is to be close to somebody. So this thing where we all keep our distance and pretend not to care about each other, it's usually a load of bull. So we pick and choose who we want to remain close to, and once we've chosen those people, we tend to stick close by. No matter how much we hurt them. The people that are still with you at the end of the day, those are the ones worth keeping. And sure, sometimes close can be too close. But sometimes, that invasion of personal space, it can be exactly what you need."

MEREDITH

Did you say it? 'I love you. I don't ever want to live without you. You changed my life.' Did you say it? Make a plan. Set a goal. Work toward it, but every now and then, look around; Drink it in 'cause this is it. It might all be gone tomorrow."

Meredith (closing voiceover)