Amy Tries a Hand Holding Experiment with Sheldon

Amy Tries a Hand Holding Experiment with Sheldon

Sheldon and Amy do a scientific evaluation when she gets turned on by Zach. They determine that she's horny. He wants her to go out with Zach, but instead she tries a hand-holding experiment with Sheldon.
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Penny, Bernadette and Amy

Penny, Bernadette and Amy

Penny, Bernadette and Amy are seen here during a night out. It's a scene from the episode "The Alien Parasite Hypothesis."
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The Big Bang Theory Season 4 Episode 10 Quotes

Penny: That's thinking ahead.
Sheldon: The alternative would be to think backwards.. and that's just remembering.

Wolowitz: He got bit by a radioactive rat.
Raj: Did he get superpowers?
Wolotiz: No, he got five stitches and a tetanus shot.