Back at the apartment, Sheldon decides to cut off Raj as a friend to make room for Kripke. To take his mind off the situation, Leonard asks Howard and Raj to take him to a bar to socialize with women, but neither he nor Howard succeed in finding a woman. Penny, frustrated at making no progress in her acting career and not having had sex for six months, becomes curious on seeing Sheldon play. In succession, Sheldon asks Penny, Howard and Raj to drive him, but each in turn ejects him from the vehicle for being annoying. She denies being Raj's girlfriend, and escapes after he becomes sick from overdrinking. During their dates, Leslie asks how many children they should have and evaluates Leonard's genetic defects. However, Sheldon turns out to be an appalling driver, claiming to be 'Homo novus automobilis' and therefore too highly evolved to learn to drive, so he decides to live in his university office to avoid having to commute.
She later refuses to serve him at the Cheesecake Factory. Raj drinks a beer before being the first to approach her, and they get on well until Howard discovers Raj actually drank non-alcoholic beer, which apparently had a placebo effect, and points this out to Raj who thereupon reverts to his usual selective mutism. Sheldon attempts to fix Penny a date with the aid of an online dating service, but fails. The guys arrive in the Arctic and agree to abide by the same rules as in the apartment. Title reference: Sheldon cannot understand why the third-floor neighbor, Mrs. After listening to Leslie in the Caltech canteen, Sheldon is convinced that Penny needs to have sex to relieve her stress and restore her regular life. Penny tries to win her friends back by bribing them with Chinese food, offering to watch with them, and even memorizing a joke.
As they are self-professed nerds, all have little or no luck with women. Despite their initial happiness, they realize Leonard accidentally included a one-day rush shipping option on the website, so the group has to work all night to fulfill the order. Title reference: The guys' polar expedition to find. Title reference: The killer robot created by the guys. Penny, initially unaware of Leonard's new relationship, shows up in the guys' apartment, and then searches Leonard's room with him, discovering various signs that Stephanie is indeed living with him.
Sheldon refuses to concede defeat, and M. However, Sheldon dismays Leonard by joining the couple when they have a romantic dinner and go to the movies. Title reference: Leonard claims that Stuart is essentially the same person as he is. Sheldon accepts, but Kripke's robot turns out to be far superior to M. Sheldon, drinking coffee to stay awake, races around the apartment dressed as while attempting to help Penny with the new order.
A children's book from the store helps Sheldon design an in form for making new friends. After Alicia brags about her exploitation of the men, while also derising their incomes, Penny confronts her. Stephanie gives Sheldon a physical examination as he claims to have. Sheldon then comforts Leonard with the fact that it's only nine months until. When Penny, a pretty woman and an aspiring actress from Omaha, moves into the apartment across the hall from Leonard and Sheldon's, Leonard has another aspiration in life, namely to get Penny to be his girlfriend.
Howard is left happy, feeling he is halfway to 'pity sex'. The socially inept Sheldon struggles, and his current friends are of little help in this area so, in the hope of finding self-help literature on friendship, he has Leonard drive him to the bookstore. They are colleagues, best friends, and roommates, although in all capacities their relationship is always tested primarily by Sheldon's regimented, deeply eccentric, and non-conventional ways. At the comic book store, Stuart tells Leonard that he is having a second date with Penny and asks for advice. Sheldon, on the other hand, immediately develops a comfortable relationship with Beverly, who turns out to be as strict and logical as himself. Determined to enter the house, he and Raj search for it using all available technologies, legal and otherwise, and actually find it.
After a trip to the results in Sheldon getting his , the group sets up a for him in the living room. . Horrified at their actions, Penny throws Leonard out of her apartment. Leonard only learns this when he comes to Penny's apartment to yell at her about their own on-off relationship. There, a named approaches Raj, and he and Leonard decide to hire her for Howard. Leonard later goes to talk to Penny and they comfort each other by discussing their respective childhood issues with their parents.
She immediately likes Leonard, much preferring him to Howard, and makes out with him in his car. Title reference: Sheldon hanging Penny's laundry from a wire and taunting her to play Panty. The next day, Leonard feels guilty and goes to apologize to him. Leonard finally reveals he actually finished his experiment a week earlier than he stated, to avoid having to drive Sheldon to work. When, again, all choose Spock, they conclude that someone must stop playing Spock. Title reference: Leonard's mother visiting him.
Title reference: Penny's line summarizing Alicia's behavior as sleeping her way to success as an actress while playing a dead prostitute in the television show. Title reference: The created by Sheldon that he uses to make friends with Kripke. After deciding on a basket of bath items he discovers a large selection, so not knowing what Penny will get him, he buys the entire range to cover all contingencies. She later wants to apologize the next day, but Leonard begs her never to speak of it again. After an unsuccessful attempt by Howard to rent the apartment, an attractive blonde named moves in. Like the universe after the big bang, the show's popularity expanded, thanks to breakout star Jim Parsons, along with the chemistry among the friends and the developing romance between Leonard and Penny. Title reference: Sheldon stating that the Renaissance Fair was just an excuse to wear a.