After years of trying to get his mother's affection, Leonard finally gets a hug from Beverly (Christine Baranski). All it took was getting her drunk.
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Penny and Leonard's mom, Beverly (Christine Baranski) go for some shots of tequila at the Cheesecake Factory.
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Holy kissy face! That's Leonard's mom kissing Sheldon in this stunning photograph.
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Penny comes to Sheldon for help to better understand Leonard's work and here he is training her.
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Bernadette (Melissa Rauch) joins the guys for lunch at work as she begins to bond with Leonard over his work.
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Wolowitz confronts Leonard when he gets jealous over his friend bonding with his girlfriend, Bernadette.
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Raj and Sheldon race... with a little Mario Kart on the Wii.
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Wolowitz gets jealous when Leonard and his girlfriend Bernadette (Melissa Rauch) get friendly.
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TBBT Quotes

Leonard: I'm not a crybaby.
Penny: Toy Story 3?
Leonard: They were holding hands in a furnace!

Sheldon: I asked myself what is the most mind-numbing, pedestrian job conceivable and three answers came to mind: a toll booth employees, an Apple store genius, and what penny does. Because I don't like touch other peoples' coins and I refuse to contribute to the devaluation of the word genius, here I am.