Renormalization: [s2e21] The Vegas

By the time Leonard returns, Sheldon claims to have a better understanding of "friends with benefits," a concept he learned from Penny, which hilariously confuses Leonard. Fun Facts & Trivia

In (Season 2, Episode 21), the gang splits up for two very different types of "social experimentation" after Leslie Winkle dumps Howard. The Vegas "Jewish Girlfriend Experience" [S2E21] The Vegas Renormalization

Sheldon ends up taking over Penny's bed and annoying her into singing "Soft Kitty" because he feels "homesick". By the time Leonard returns, Sheldon claims to