Howard: Well, you know World of Warcraft?
Penny: Um, the online game? Sure.
Howard: Well, did you know that the characters in the game can have sex with each other?
Penny: Oh, God. I think I see where this is going.
Howard: Her name was Glacinda the Troll. Bernadette walked in on me while we were doing the cyber-nasty under the Bridge of Souls.
Penny: Oh, you're right. That is so embarrassing.
Howard: Would you talk to her?
Penny: Bernadette or the troll?

Leonard: If I take it off, Sheldon wins.
Penny: Sweetie, every night you don't kill him in his sleep, he wins.

Penny: I mean, who even reads Scientific American?
Leonard: It's kind of a big deal.
Penny: If it's such a big deal, how come the biggest celebrity they could get for the cover is a molecule?

Sheldon: Woman, you are playing with forces beyond your ken.
Penny: Yeah, well your Ken can kiss my Barbie.

Leonard: Sometimes your movements are so lifelike I forget you are not a real boy.

Raj: Oh, you're so arrogant. If you were a super hero your name would be Captain Arrogant. And do you know what your super power would be? Arrogance.

Sheldon: Oh, Penny. Penny.
Penny: What's up?
Sheldon: Nothing. I just wanted to make Raj stop talking.