CSI S5E16 Big Middle

Grissom: "A little technical reading, Greg?"
Greg: "Just wanted to see what the big deal is."
Gil: "Attraction is subjective; it can't be analyzed."
Greg: "I consider myself to be pretty open-minded.

 I find other people's predilections very intriguing. 

What do you like? What gets your juices flowing?"
Grissom: "Someone who doesn't judge me."