When Sheldon is embarrassed by Kripke on National Public Radio, Sheldon comes to comfort his friend.
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Raj attempts to scare the guys with a ghost story but they look a little more bored than scared.
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Leonard, Raj and Wolowitz are definitely not the manliest of men. Here they are a little scared on their camping trip.
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Leonard, Raj, and Wolowitz go camping with style... an entire array of electronics.
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Three of our favorite nerds, Leonard, Raj and Wolowitz go camping and can't help but bring a computer when they go camping.
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Things don't look so good for Raj, Wolowitz and Leonard when they go camping on The Big Bang Theory.
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Leonard and Penny act as parents as they go to pick up Sheldon from the comic book store.
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Penny joins the nerds in a friendly game of cards. Here's a cute picture of her smiling as Leonard look at her.
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We sure see a lot of Penny and Leonard in bed. Not that were complaining, this is where we want to see this couple!
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When Leonard tells Sheldon he needs to use more honey than vinegar on Penny, he tries an experiment where he uses chocolate as positive reinforcement on Penny. Amazing.
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Penny and Leonard try and talk out their little awkward hookup they have in the season three premiere last week.
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Leonard and Penny drink some peppermint schnapps in an attempt to try and get a little sexual chemistry going on for their awkward sex life.
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TBBT Quotes

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.

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.