S2, E4: So Michelle’s Mum Anna (Arabella Weir) has gone and done it again. Married another new husband. And worse, Michelle has to move in with them into their poncey new house. But even worse, this time Michelle has to contend with a new big-titted, emotionally manipulative step sister called Scarlett (Sia Berkeley). Before she knows what’s happening, Scarlett is invading her life, co-opting her friends and offering unwanted advice about what to do about her still incapacitated ex-boyfriend Tony. So when Scarlett inveigles herself onto Michelle’s birthday camping trip to the Gower and starts to move in on the emotionally fragile Sid, Michelle’s got to do something. Sid needs Michelle, he’s her friend, and he’s always had a thing for her anyway, so she does the only thing she knows. And it’s fantastic, and... hang on. How are they going to tell Tony?