Actress Jessica Alba says she never made a deliberate effort to cultivate a sexy image with her movie roles.

The 33-year-old, who has daughters Honor, six, and Haven, two, with husband Cash Warren, is best known for playing dancer Nancy Callahan in `Sin City` and superhero Sue Storm in `Fantastic Four`. She says a majority of her film roles are only "sexy" because of her figure.

"I never sought them out. I was playing a superhero and all of a sudden when they put me in a superhero uniform, they called it sexy. I was covered head to toe, but everything turns into sexy because I have a body,` contactmusic.com quoted her as saying.

"I was never, 'Oh, I'm going to be a sexy superhero'. I was just playing a superhero. The only overtly sexy role I've ever done was 'Sin City'," she said.