Melissa Rauch

Pam's contractions begin but she and Jim are determined to wait it out as long as possible so they can have more time at the hospital. The rest of the office crew try to distract Pam from the pain with food and entertainment. Back at the office, Erin makes Andy jealous.

Bernadette runs into her ex-boyfriend while attending a science event with Wolowitz.

After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself. Meanwhile, Penny sets up one of her friends on a date with Wolowitz.

Hoping it will make him a better teacher, Sheldon has Penny give him acting lessons. Raj has fantasies about a friend's girlfriend.

Penny asks Leonard to lie to her father, while Howard, Raj and Bernadette pull an all-nighter at a telescope.

Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.