Catherine: Definitely a crime of passion.

Grissom: You think a female did this?

Catherine: I could have.

Grissom: I'm scared of you.

Catherine and Grissom are in the break room
Sara: "Grissom can you come and tape me up?"
Grissom: I love my job."
Catherine: "It shows"

Oh. Now, how much time and effort went into this? I'm gonna guess five days a week a the gym, low carb, low fat, slow burn, and for what, Nicky? For what?

Do you want to suck it? Just to be sure.

Blood. Coke. Semen. These people were doing everything in this kitchen but cook. '

Gil Grissom: Did you hear the one about the cop and the monkey who walk into a bar?

Catherine Willows: I'm not in the mood.

Gil Grissom: Neither was the monkey.

Catherine: I'm the senior CSI here

Grissom: Uh-uh. I'm the senior CSI here.

Grissom: "I come here for calamari"
Catherine: "Alone?"
Grissom: "No, sometimes I have a beer with it.

Catherine: I'm to busy to play favourites. Duke it out.

Nick: Duke it out? Ok.

[Nick turns to face Warrick, fists raised and ready to fight]

Nick: Boy, you better flip a coin. I'll hurt... more

Well, you ever try shaking your ass in four-inch heels? Wait, don't answer that.