Grey's Anatomy, Season 5

[Izzie knocks on Meredith's door and Derek answers half naked]

Izzie:
Where's Mer?

Derek:
She's not here.

Izzie:
Oh. So you're just in there by yourself?

Derek:
I'm not. I'm--I'm waiting for her.

Izzie:
Love the outfit.

Derek:
What do you want?

Izzie:
I need cash. I ordered a pizza and Alex owes me 20 bucks, but he's not speaking to me because I saw him crying over his crazy girlfriend and there was a minute a week ago that I actually thought he was gonna be a human being and now he won't open the door.

Derek:
Run into the bathroom. Just go. Go! [Izzie hides in the bathroom] Karev! Give me a twenty.

[Alex grudgingly comes out of his room hands him a $20 note and leaves.]

Derek:
Thank you. [hands the $20 to Izzie]

Izzie:
That was so awesome. Very cool. Not that I didn't think you were cool before, but, you know, I did not. I kinda just thought you were all hair and... [looks at Derek's lower half] you know. Now, cool. [Derek snickers] You want to share some pizza?