Raj and Penny looked as shocked by their actions here as viewers of The Big Bang Theory were. They slept together?!?
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Cheers to a new set up. Raj moves in with Sheldon on the season finale of The Big Bang Theory.
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The Big Bang Theory Season 4 Episode 24 Quotes

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

Open the landing bay doors, shuttle craft approaching.

Leonard