S2, E4: Belle (Billie Piper) is now in a fully fledged relationship with Alex (Callum Blue) and hasn't had a booking in over a week. Needing work, Belle accepts Bambi's offer of a threesome with a flashy nightclub owner. Bambi (Ashley Madekwe), who is gaining confidence as a prostitute, throws herself into it and is porn-tastic. But when it comes to the nitty gritty, Belle can't do the job, she keeps picturing Alex. Belle has a crisis chat with Ben (Iddo Goldberg) who tells her that she is clearly in love. Ben is gutted. So is Belle! This can't be happening to her. Belle invites Ben along to lunch with her and Alex. The lunch is very tense and there are misunderstandings all round. Ben leaves in a huff. Terrified of being rumbled about her double-life, Belle is forced to admit to Alex that the reason she is behaving strangely is because she's in love with him.