Episode 4.21 "The Agreement Dissection" has Priya using her legal skills to nullify Leonard and Sheldon's Roommate Agreement. Sheldon gets his revenge when he makes Leonard sign a new Roommate Agreement to stop Sheldon telling Priya and Raj's parents about Priya's relationship with Leonard. What if Priya and Leonard call Sheldon's bluff?
Part 7. Preparation for India.
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After Leonard's trip to India was confirmed he had to get ready for his trip. He would have a Skype discussion once a week with Professor Malik so they could get to know each other and to discuss research. He knew that he only had 6 months there so he didn't want to waste the scientific opportunity. Priya and Raj taught Leonard a few phrases in conversational Hindi, although Professor Malik said that everyone spoke English at the university.
Priya joined in with the rest of the social group, she went on a couple of 'girls nights' where she joined in the making fun of their male friends. Priya was also able to tell embarrassing tales of when Raj was growing up which the other ladies really enjoyed.
Raj soon got used to having Sheldon as a roommate, he also enjoyed having Penny as a neighbour. Now that he could talk to women and having Penny across the hall Raj's friendship with Penny got stronger. They even joined Sheldon and Amy on a couple of double dates although they didn't take their relationship any further than that.
Beverly Hofstadter came to visit, Beverly got on well with Priya when she had dinner with the two of them. Most of the time she talked about how wonderful her son the Harvard Law Professor was but at least she approved of Priya's profession.
In the last month before departure Priya started to get excited about returning home. Leonard seemed to alternate between getting worried about what he had got himself into and also looking forward to some new personal and scientific experiences in India. With two weeks to go Leonard's Indian visa came through. He was really going to do this!