English actress Billie Piper is disgusted super-skinny celebrities such as Victoria Beckham and Nicole Richie are role models for young girls. The Doctor Who star, who fought anorexia during her teenage years, can't believe US fashion stores stock size zero (UK size 4) clothes and is horrified her younger sister wants to look as slim as former SPICE GIRL Beckham. She says, "The whole size zero debate is disgusting. "My sister, who is 13, looks amazing, but she's already worried about her figure. She loves Posh (Beckham) and I say, 'Come on ELLIE, she's tiny. What's wrong with Shakira? She's sexy, she's curvy.' But she has no interest."