Leonard: I got you something for Valentine's Day and I was too embarrassed to give it to you.
Penny: Why?
Leonard: Because I got it at the dirty store.
Penny: You went to the dirty store without me?
Leonard: In sun glasses and a hat after I parked two blocks away.

Penny: No, come on, I wanna do it. Let's you, me and your very, very pale feet make some art.

Leonard: We cover ourselves in body paint and then we get on this big canvas and do our thing.
Penny: Woah, that's kind of a big step for a guy who only recently agreed to take his socks off.

Sheldon: Hi little guy. How'd you like to come home with us? You'll be living with me, because we don't live in the same house.
Amy: But that's not your fault. Like you, we're taking it ridiculously slow. You'll stay with me when he's away for Comic-Con or with work.
Sheldon: Or if they accept daddy's application to live on Mars.

Amy: Let's pick ourselves out a nice turtle. Ooh, how about this one up on the log?
Sheldon: Hmm, I don't know. He kinda looks like a jerk.

Sheldon: Oh dear lord. Oh dear lord.
Amy: It's okay. We made it. We're fine.
Sheldon: That was a lot of puppies.

Raj: So, where's your roommate tonight?
Emily: Well, I thought it was a little unfair that she's always here and you never get a chance to stay over, so I killed her.
Raj: Remember our agreement. You can joke about killing people, but you have to say "just kidding".

Leonard: Congratulations. Who would've thought you two would be the first in our group to start a family.

Sheldon: How about this one?
Amy: He's barely moving. He looks half dead.
Sheldon: I know. I like him too.

Amy: Acquiring a joint pet is a big step for us.
Sheldon: It's true. It means we care so much about each other, there's enough left over for an eight-ounce reptile.

Penny: This is why I've been saying we should keep champagne on ice.
Sheldon: Sarcasm?
Amy: Yes.
Sheldon: That was tricky because when it comes to alcohol, she generally means business.

Sheldon: Do you want to say it?
Amy: Let's say it together.
Sheldon and Amy: We're getting a turtle!

Leonard: I was unstoppable. I was on fire. It was like my mind and my body were totally connected, like athletes must feel when they're in the zone.
Penny: Again, it was miniature golf.
Leonard: Admit it, you're a little turned on.
Penny: You can't be this proud.
Leonard: Why not?
Penny: Because I beat you.

Leonard: Why a turtle?
Sheldon: After much deliberation, we've determined that a turtle is the ideal pet. They don't shed fur. They don't make noise.
Amy: For Halloween, we can dress him as a cobble stone.
Sheldon: And, if he ever goes beserk, I know I can out run him. Coincidentally that's also why I chose you as a roommate.

Sheldon: Given our new found intimacy, I'd say we have some hard choices to make.
Penny: Like what?
Sheldon: Gary Con. Do we fly or drive? Do we wear costumes? And if so, who gets to be Gary?