Brook's modelling career began at 16 after winning a beauty competition that her mother entered her in.^[3] Following this success she worked on a range of advertising campaigns, including for Foster's Lager, Renault Megane, Walkers crisps, Piz Buin and Bravissimo, a company that specialises in bras and lingerie for large-breasted women. Her voluptuous figure eventually caught the eye of the editorial team of the Daily Star tabloid^[4], which began featuring her as a Page Three girl.