Bernadette: Oh, and, Penny, she kinda threw up on your stuffed bear.
Penny: Oh, that's okay.
Leonard: Hey. That's an Ewok and it's mine.
Penny: Yeah, which is why it's okay.

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

Raj: [to Amy] If you were having Sheldon's baby, would you really want him in the room?
Penny: Yeah, if he's in the room when they're making the baby, I'll give you $10.

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?

Penny: No, I've been reading Bernadette's parenting book. It's like the answer key to the Sheldon test.

Leonard: It's fine, I've been driving him for years. What's one more day?
Sheldon: Oh, and I've got a new car game we can play. It's called "What siren am I?"

Raj: This is great, the two of us hanging out. Why didn't we think of this earlier?
Sheldon: Agreed. I don't need Amy to watch a movie. I can not hold your hand just as easily.
(Sheldon starts the movie)
Sheldon: In the book this is based on, that man's the killer.