She and Leonard went on their first date in the finale of the first season, but they were unable to start a relationship because Penny feared he would get bored with her due to his high intelligence compared to her own. Regardless, Leonard continues his pursuit of Penny throughout the secon...
present for Leonard and Sheldon starts pretending to be an employee in the store they're shopping in. Leonard ends up missing his party when Howard risks his life for Leonard to be able to get the surprise and Leonard starts wondering when Penny's birthday is in the end of the episode. ...