Leonard and Raj Listen

As Leonard and Raj go to get Wolowitz from his house for their Halo team they overhear his mother fighting with his new girlfriend.
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Penny Plays Halo

Penny joins the boys for a game of Halo and they're a little shocked that she's not bad at the game.
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Leonard and Penny Kiss

A picture of Leonard and Penny kissing in costume after Penny's ex-boyfriend is a jerk to Leonard at her Halloween Party.
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Sheldon and Leonard Open the Door

Sheldon and Leonard open the door at Penny's Halloween Party dressed like quite the nerds as Penny's large friend enters the apartment.
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Leonard, Sheldon and Raj on the Couch

Leonard, Sheldon and Raj sit on the couch at Penny's Halloween Party all dresses in costume.
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Leonard the Cellist

Leonard join Leslie's string quartet at the cellist. However, we all know the real reason Leslie invited Leonard to join.
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Sheldon Gets Fired

Sheldon brings home his stuff after he gets fired from his job at Caltech after insulting his boss.
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Leonard Out With Penny

Leonard goes out with just Penny on a dinner date that Penny originally thought was going to be a group dinner.
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Leonard Asks Out Leslie

Leonard asks out Leslie in an attempt to get over his "rejection" by Penny but ends up being turned down by Leslie as well!
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Leonard Enters the Dark

Only Leonard would use a light saber to light up an otherwise dark Penny's apartment. Wow we wish we could embrace being this nerdy.
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Sheldon and Leonard are Shocked

Sheldon and Leonard look extremely shocked as they enter Penny's messy apartment. Sheldon is extremely bothered by how messy she is.
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Sheldon and Leonard Deliver

Sheldon and Leonard attempt to move Penny's delivery package up several flights of steps.. It really is a shame that elevator is always out of order.
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TBBT Quotes

Oh, Bernadette, please play my clarinet.

Raj's poem

Sheldon: I'll have a diet Coke.
Penny: Can you please order a cocktail? I need to practice mixing drinks.
Sheldon: Fine... I'll have a virgin Cuba Libre.
Penny: That's... rum and Coke without the rum.
Sheldon: Yes, and would you make it diet?