Then Came Lunch - S1.E7

When Aiden invites Billie over to Ed's and his apartment, Billie is incredibly happy, until Cheryl reminds her of what a guy's apartments looks like. Billie decides to go through with it anyway, but keeps a back-up plan just for safety. Meanwhile, Ed and Aiden have to clean up the apartment, which is a big mess at the moment. After being horrified to see his apartment, Aiden unknowingly neutralizes her back-up plan and Billie is forced to sleep over. In the middle of the night she is shocked and calls Cheryl and begs her to come to her rescue.