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.
Amy and Sheldon plan a trip to the wine country with Howard and Bernadette on The Big Bang Theory. "The Locomotive Manipulation" is the 14th episode of the show's seventh season.
Sheldon struggles with what to do with his time off on The Big Bang Theory. "The Occupation Calibration" is the 13th episode of the show's seventh season.
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?