Physical Attraction, Chemical Reaction Photo

Physical Attraction, Chemical Reaction Photo

A picture from the episode "Physical Attraction, Chemical Reaction."
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You're Not Attraced to Me

You're Not Attraced to Me

Erica Hahn puts Mark Sloan in his place awfully quickly at Joe's when he tries to act upon his "thing" for her.
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I'm Here For ...

I'm Here For ...

... the sex. That's what Alex tells Lexie Grey. But in the end he ends up on Team Meredith. Of course, she backs off her bitchiness a little bit as well.
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Three Docs Consult

Three Docs Consult

Drs. Shepherd, Yang and Grey (the younger) consult with a man about an important medical decision to be made. From "Physical Attraction, Chemical Reaction."
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Lexie Labors

Lexie Labors

Lexie does everything she can for a small patient ... but will it be enough? We will have to wait and see.
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Derek, Lexie, Cristina

Derek, Lexie, Cristina

Derek Shepherd (Patrick Dempsey), Lexie Grey (Chyler Leigh) and Cristina Yang (Sandra Oh) in the episode called "Physical Attraction, Chemical Reaction," from Season Four of Grey's Anatomy.
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Derek, Lexie Look On

Derek, Lexie Look On

Derek and Lexie discuss a case with a patient and other staff members. We like these two together... so long as there's no romance involved!
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An Expression of Concern

An Expression of Concern

This new visitor to Seattle Grace wears an expression of great concern... and for good reason. Will his situation be resolved for the better?
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Sad Shepherd

Sad Shepherd

Derek Shepherd (Patrick Dempsey) constantly desires more than Meredith (Ellen Pompeo) is willing to give. How long until he reaches his breaking point.
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Cute Lexie

Cute Lexie

You can't deny that the younger Grey sister is a cutie ... even if you don't approve of her flirtations with other characters! Lexie Grey has made an impression on viewers in Season 4.
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Meredith and Alex

Meredith and Alex

These two don't seem to interact much, but we love Drs. Alex Karev and Meredith Grey. One of the few pairings not to have hooked up on Grey's Anatomy!
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Alex Contemplates

Alex Contemplates

Alex Karev (Justin Chambers) without the familiar arrogant look. How will he handle the fallout from hooking up with Lexie Grey?
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Grey's Anatomy Season 4 Episode 7 Quotes

Meredith: [narrating] Before we were doctors, we were med students, which meant we spend a lot of time of studying chemistry. Organic chemistry, biochemistry, we learned it all. But when you're talking about human chemistry only one thing matters: either you've got it or you don't.

Derek: What's new with you?
Meredith: I saw my half-sister half naked.