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.

An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work.

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

Amy finds she has sexual feelings for Penny's ex, while Koothrappali and Wolowitz try to prove who would be the better superhero.

Leonard realizes he’s the only one without a girlfriend, while Sheldon wants to get rid of his.

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