<p>I hate it when my mother brags about me and my sister. "Deenie's the beauty and Helen's the brain."'</p><p>Mrs Fenner has very fixed ambitions for her daughters. Deenie is thirteen years old and gorgeous. Her mother wants her to be a model - but Deenie's not so sure. So when she's diagnosed with scoliosis - curvature of the spine - Deenie's almost relieved. No more traipsing round modelling agencies, no more living up to her mother's expectations. But she has to wear an ugly, uncomfortable ba...