Leonard: Penny. We are made of particles that have existed since the moment the universe began. I like to think those atoms traveled fourteen billion years through time and space to create us, so that we could be together and make each other whole.

Officiant: Is that the song from Toy Story?
Penny: He loves that movie.
Leonard: (emotional) I do.

Leonard: Hey, if you're hungry, there's a breakfast buffet at the strip club next door.
Penny: Thanks, but I don't like glitter on my scrambled eggs.
Leonard: I don't think the strippers prepare the meal, but okay.

Leonard: And you promise you're okay with everything from the car?
Penny: Oh my God, Will you stop bringing it up?
Leonard: You're right. I'm sorry. We have the rest of our lives to dredge up stuff from the past and fight about it.

Penny: So what package are you thinking?
Leonard: This one comes with music and flowers. Oh, they even stream the whole thing live on the Internet.
Penny: Why would we want that?
Leonard: Because, there's a lot of gorgeous blondes out there who don't believe they can land a short, near-sighted scientist. Let's give them hope.

Penny: No, I want to. Look, we've put this off long enough. Let's do it.
Leonard: Oh, that's exactly what you said the first time we slept together.

Leonard: Hang on, uh, uh, roommate agreement. Ha! Um, no hootenannies, sing-a-longs, or barbershop quartets after 10:00 p.m.

Raj: Why do you put six sugars in your coffee?
Leonard: Because the cafeteria doesn't offer little packets of methamphetamine.

Leonard: I have to get a lock for my door.

Penny: Anyway, you want to make out?
Leonard: I thought because our relationship was in a beta test, you wanted to take things slow?
Penny: Okay. Do you want to make out slow?
Leonard: I can go so slow. It'll be like there's a snail in your mouth.

Leonard: Our babies will be smart and beautiful.
Sheldon: Not to mention imaginary.

Penny: Sheldon, we're getting married.
Sheldon: But you've been engaged for over a year now, and you don't even have a wedding date.
Penny: Well, we will. We're just not in a rush.
Sheldon: Okay.
Leonard: We're gonna set a date.
Sheldon: Okay. If you say so.
Penny: Yeah, it's just, things are good right now.
Leonard: Really good.
Penny: I'm focusing on my job.
Leonard: And we've been busy with our paper.
Penny: So busy.
Leonard: Yeah, we'll pick a date when we pick a date.
Penny: Yeah.
Sheldon: Okay.
Penny: You know, I can see why Amy's mad at you!
Leonard: Yeah, shut up, Sheldon!

Penny: Look, I'm not happy this happened, but I think I can get past it. I mean, we weren't engaged at the time, and it was just kissing.
Leonard: Right. Just kissing. It wasn't even very good. She was a smoker. I'd just been seasick...
Penny: Okay, that's enough. Stop talking.

Leonard: I can do that. From now on, this mouth, you and food. That's it.

Penny: Thanks for cooking.
Leonard: My pleasure.
Penny: That carrot was delicious.
Leonard: Yeah. I wish I'd fought harder for the rest of 'em.