The Perspiration Implementation

Season 9 · Episode 5 · First aired October 19, 2015

The guys take a fencing lesson from Barry Kripke and Sheldon finds himself in an awkward position when Kripke expresses interest in Amy. Also, when Stuart struggles to get female customers at the Comic Book Store, Penny, Amy and Bernadette come by to help him out.

Summary from TVmaze · CC BY-SA