Penny: All right, Sheldon, this is over the line.
Sheldon: That's true, but had I done something under the line, there wouldn't be a man in your kitchen who can't produce a single form of ID.
Theodore: Oh, oh, I have a receipt from a blood bank. I'm O-negative.
Sheldon: And now you know as much about him as I do.

Raj: Oh, hey, Bernadette, the swing comes with two different mobiles. The giraffes are pretty cute, what do you think?
Bernadette: Great, go with the giraffes.
Stuart: Although the high contrast of zebra stripes might provide better stimulus for a developing baby.
Bernadette: Yeah, you're probably right, go with the zebras.
Stuart: Good choice, boss.
Raj: At least my nose is naturally brown.

Bernadette: Hey, could you please go to the market for me?
Howard: Get Stuart or Raj to do it.
Bernadette: Howie, they've been doing everything for you.
Howard: Mm, I know. It's really making me lose respect for both of them.
Bernadette: Please just go to the store.
Howard: Fine. (shouting) Who wants to drive me to the store?
Raj: (off-screen) Me!
Stuart: (off-screen) I'll do it!
Bernadette: Take Raj. Stuart is supposed to paint my toenails.

Penny: What do you think? Should we go to a hotel?
Leonard: And just leave him here alone?
Penny: Okay, I'll go to a hotel. Text me in the morning if you're still alive.

Leonard: Uh, Theodore, how long are you planning to stay exactly?
Theodore: Oh, thanks to the coins I found in your couch, a day longer than I thought.

Leonard: Sheldon, get out here!
Sheldon: Will you keep it down? What kind of vengeful bed and breakfast do you think I'm running?

Theodore: Excuse me. It's none of my business, but it sounds like a lot of this anger is coming from love.
Leonard: Yeah, thanks, but nobody asked you.
Theodore: Well, I'm just gonna keep on talking. Seems like, with Sheldon moving out, you're in a new phase of your lives and it's easier to fight than to face the feelings that you have for one another.
Amy: I think he might be right. Also, who is that?

Sheldon: I have to admit, leaving you to move in with Amy has been harder than I thought it would be.
Leonard: Well, for me, too. It's not the same with you gone.
Theodore: If you're looking for a new guy to live with-
Leonard: No!
Penny: We're good. Thank you.

Sheldon: Leonard, I would like us to stop fighting about our possessions.
Leonard: Well, I'd like that, too.
Sheldon: In fact, I want you to keep the apartment flag, and I'm not just saying that because it touched your genitals.
Leonard: You promise?
Sheldon: I do. And to show you that there are no hard feelings, I am willing to rub my genitals on it as well.

Theodore: Well if we're rubbing genitals on things, that's where I shine.

Penny: Little lower to the left. A little more.
Leonard: Is it good?
Penny: No, still hideous.
Leonard: Well, I'm sure at some point, we won't even notice it's there.
Penny: Yeah, you'd think that, but after a while it starts showing up in your dreams.

Howard: Hey, tomorrow who wants to paint the nursery?
Raj: I'll do it.
Stuart: Why do you get to do it? I'm the artist.
Raj: Just because you're starving doesn't make you an artist.
Stuart: Just because I look sickly doesn't mean I'm starving.

Bernadette: (off-screen) Howard!
Howard: Guys, you heard her, go see what she wants.
Bernadette: (enters the room) I think I'm in labor.
Howard: Oh, oh, okay. Okay, uh, uh, uh, I can do this. We have a plan. Somebody please tell me the plan.
Stuart: I'll get the hospital bag.
Raj: I'll pull the van up.
Stuart: Meet you outside in 2 minutes.
Raj: Team Baby, go!
Howard: I love you.
Bernadette: I love you, too.
Stuart: Are we hugging or having a baby? Let's go!

Amy: Bert is studying the way microbes in rocks can survive in extreme environmental conditions.
Leonard: They say it could be a potential indicator of life on other planets.
Penny: You know what, I've met Bert. Isn't he an indicator of life on other planets?
Sheldon: You used to make those jokes about me. Now everything's Bert, Bert, Bert.

Sheldon: Everything is stupid and I want to go home.
Leonard: That's Sheldon's way of saying he's proud of Bert, too.