Christmas is a source of stress for Leonard - whose handsome colleague starts dating Penny - and his friends, who are being tormented by Sheldon's obsession with gift-giving etiquette.
Leonard's relationship with Stephanie is moving too fast for him, so he runs to Penny for advice.
Sheldon can barely contain his joy when Leonard starts dating a woman who meets Sheldon's exacting standards. The title refers to Sheldon's attempt to show Leonard's physical superiority to Stephanie by having him open a jar of white asparagus.
A girl Wolowitz has a major crush on falls for Leonard.
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate
Sheldon, and his friends, are mystified when a younger grad student is attracted to him.
An intervention is used to try to force Sheldon to overcome his fear of driving.
Full of confidence following getting a paper published, Raj hits on Penny.
Penny feels frustrated by her failures at life. After Sheldon is taking a break from his MMORPG, he notices that Penny is having a bad day. Penny had accidentally used her car keys for her apartment door. She claims she has not had sex in six months, didn't get her ...
The guys return from a Renaissance Fair and see Penny with a new guy, prompting a jealous Leonard to pursue a relationship with fellow physicist Leslie Winkle.