The Big Bang Theory - Season 4 - Eps 21: The Agreement Dissection
When Leonard spends too much time in the shower with Priya, Sheldon charges Leonard with two violations of the roommate agreement. However, before he can get too far, Priya uses her skills as a lawyer to nullify the charges due to the agreement's vague wording, much to Sheldon's dismay. When the guys take advantage of Priya's skills in order to eat Greek food on pizza night, Sheldon goes to Penny, who invites him to a girls' night out with Amy and Bernadette, which Sheldon agrees to after Penny mentions that they may be talking trash about Priya. After the girls drink some cocktails, they decide to take Sheldon dancing, which Sheldon reluctantly goes along with. After dancing, Sheldon takes an intoxicated Amy back to her apartment and as well as talking about Priya, meets a monkey who is addicted to smoking cigarettes. Amy tells Sheldon not to give in to Priya's law skills, before kissing him and going to her bathroom to vomit.
About The Big Bang Theory

Title: The Big Bang Theory
First Air Date: 2007-09-24
Last Air Date: 2019-05-16
Status: Ended
Rating: 7.9/10 (from 11562 votes)
Language: EN
Seasons: 13
Total Episodes: 279
Network: CBS
Genres: Comedy
Production Companies: Chuck Lorre Productions, Warner Bros. Television
Synopsis
Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
Cast

Johnny Galecki
Leonard Hofstadter

Jim Parsons
Sheldon Cooper

Kaley Cuoco
Penny

Simon Helberg
Howard Wolowitz

Kunal Nayyar
Rajesh Koothrappali

Melissa Rauch
Bernadette Rostenkowski

Mayim Bialik
Amy Farrah Fowler