Raj: Hey, can I ask you a favor? Would you mind taking Cinnamon for a walk?
Leonard: Sure. You're living here for free. I guess I owe you.

Sheldon: Yeah, I picked it up without thinking about it. Which raises a neuro-scientific question, when did I decide to pick it up?
Raj: The bigger question is, what are you gonna eat with that spoon? You didn't get any food.

Amy: You know, we've never collaborated professionally before. Are you worried it might affect our relationship?
Sheldon: That is a valid point. Perhaps we should establish some ground rules.
Amy: Well, that would make me feel better.
Sheldon: All right, let's start right now. Uh, rule number one, no using sexuality to get your way.
Amy: That's a ridiculous rule.
Sheldon: Is it? (Sheldon flaunts his posterior as he walks away)

Penny: Okay, how is that?
Raj: I can actually feel the toxins being pulled out of my skin.
Penny: Well, this is a moisturizing mask.
Raj: Oh, well, then I can actually feel the moisture going into my skin.

Sheldon: Number two: when we publish, my name goes first. Oh, subsequently, if we win any awards, I speak first. I don't want to be talking when the orchestra plays us off.

Leonard: I mean, they didn't say anything, but I just kind of felt like I was being a weird third wheel.
Howard: Huh, so you can tell what that feels like. Interesting.

Amy: So, shall we get to work?
Sheldon: Biology and physics coming together. This is like the peanut butter cup of the mind. Ooh, I know what I want my treat to be.

Leonard: I mean, I'm glad they're getting along, but it's starting to make me uncomfortable.
Bernadette: Well, are you worried he's like another man in her life?
Leonard: A little, until I saw them in matching tops.

Sheldon: Can you stop breathing so loud? I can hear your nose whistling.
Amy: I can hear your face talking, so we're even.

Leonard: You know, it's nice to spend time with people who don't talk about work like it's some kind of soap opera.
Bernadette: Jennifer still trying to sleep her way to the top?
Leonard: (deflated) Yeah.

Howard: You should be happy someone wants to do the stuff with Penny you don't want to.
Bernadette: Yeah, I wish I had that with Howard.
Howard: Wait. What? What do I make you do?
Bernadette: Let's see: the magic store, the Doctor Who convention, the National Belt Buckle Collector's meet and greet.
Howard: It said right there on the invitation, "Buckle up for fun." It's not my fault you didn't listen.

Sheldon: Can you read them back?
Amy: "Revised ground rule number one: We are on the same team, but it is a competition."
Sheldon: Excellent. Excellent. And on a related point, you're going down, punk.

Amy: "Revised ground rule number two: There are definitely stupid questions. And those who ask them can be told so right to their stupid face."
Sheldon: I love that one.
Amy: Thanks, babe.

Amy: "Number three: Fair topics for insult include educational pedigree, scientific field, intellectual prowess, and mamas."
Sheldon: Yeah, that list is strong. Like your mother's urge to be promiscuous with sailors.

Amy: Did you say you guys are working on the guidance system tomorrow?
Leonard: Yeah, why?
Amy: Well, Sheldon said that he was gonna work with me on our quantum perception project.
Leonard: We've had this planned for a week.
Amy: Well, he reconfirmed with me this morning.
Raj: Guys, before this gets ugly, remember, the winner gets Sheldon.