Whoa, whoa, whoa, whoa. Just because I love you doesn't mean girls are allowed in my room.

Sheldon

Amy: Sheldon, there's something else I've been wanting to say, but before I do, I just... I want you to know that you don't have to say it back.I know you're not ready, and I don't want you to say it just because social convention dictates...
Sheldon: I love you, too.
Amy: You said it.
Sheldon: There's no denying I have feelings for you that can't be explained in any other way. I briefly considered that I had a brain parasite. But that seems even more far-fetched. The only conclusion was love.

Amy: Well, you can relax. Just because you think I look pretty doesn't mean we have to spend the night together.
Sheldon: Were you hoping we would because it's prom?
Amy: I'm always hoping. But tonight I just wanted to have a nice time with you. And maybe dance with someone who has arms.

Amy: What's going on?
Sheldon: What's going on is we're about to go to a prom. And there's a great deal of pressure on young couples like us to engage in what Mr. Bob Eubanks called making whoopee.

Leonard: You know, if you're not gonna learn how to do this, they make some pretty good clip-ons.
Sheldon: Bruce Wayne doesn't wear a clip-on. Bruce Wayne doesn't make his roommate tie it for him.
Leonard: His name is Alfred, and, yes, he does.

Penny: Here's a question-- as an alien pretending to be human, are you planning to engage in any post-prom mating rituals with Amy?
Sheldon: There are post-prom mating rituals?
Penny: Not always. Unless your date drives a van with an air mattress, then always.
Sheldon: Well, if it's part of the prom experience, then I'm open to it.
Penny: You're kidding.
Sheldon: I may be an alien, but I have urges.If Amy wants to copulate by firing her eggs into space, well, then, I will happily catch them with the reproductive sac on my upper flermin. I'm not the best at reading facial cues, but I can see that you're a little turned on.

Ever since I saw Pretty in Pink, I've wanted to go to an American prom. But then I saw Carrie, and I did not want to go to an American prom. But then I saw Never Been Kissed, and I'm back on the prom bandwagon. This prom thing's been a real roller coaster.

Raj

Penny: Prom is silly anyways.
Bernadette: Easy for you to say; you probably went with the captain of the football team.
Penny: No. I just made out with him a little while his date was puking.

Penny: That, believe it or not, is my prom dress.
Bernadette: Wow, you still have it? I just assumed it was balled up in the corner of a barn somewhere.
Penny: What kind of teenager did you think I was?
Bernadette: Slutty.
Amy: Easy.
Penny: The word is "popular."

Howard: They're not dating. They're just two friends who went out to dinner.
Raj: And then went back to the home they share where they probably fell asleep in the matching pajamas she got them because they both just love penguins.
Howard: Hey, lots of people wear matching pajamas who aren't dating.
Raj: Like who?
Howard: Like you and your dog.
Leonard: Don't rule out the dating.

Leonard: Oh, hey, we ran into your mom at Benihana last night.
Howard: Uh, yeah, she loves that place. Every time they flip a shrimp in the air, she practically leaps out of her seat to catch it. That's why I don't take her to SeaWorld.

The Big Bang Theory Season 8 Episode 8 Quotes

Howard: They're not dating. They're just two friends who went out to dinner.
Raj: And then went back to the home they share where they probably fell asleep in the matching pajamas she got them because they both just love penguins.
Howard: Hey, lots of people wear matching pajamas who aren't dating.
Raj: Like who?
Howard: Like you and your dog.
Leonard: Don't rule out the dating.

Leonard: Oh, hey, we ran into your mom at Benihana last night.
Howard: Uh, yeah, she loves that place. Every time they flip a shrimp in the air, she practically leaps out of her seat to catch it. That's why I don't take her to SeaWorld.