02/02/2009 at 10:00 AM EST
Though her Harry Potter
costar Daniel Radcliffe
has bared all in London
and New York
stage productions of Equus
, Hermione Granger is content to remain the clean-cut belle of Hogwarts.
"I have no plans to do anything for the sake of it, or to shock people," the actress, 18, tells the U.K.'s Mail on Sunday
"I might be willing to take my clothes off for a Bernardo Bertolucci film, if it was a part that really made sense as part of my character. But I wouldn't do it just to make a point, to move on from Hermione."
Exposing her attitude about the demands of being a young star, Watson says, "I find the whole concept of being 'sexy' embarrassing and confusing. If I do a photo-shoot people desperately want to change me – dye my hair blonder, pluck my eyebrows, give me a fringe [bangs]."
As for wearing revealing clothes for fashion shoots, "Personally, I don't actually think it’s even that sexy. What's sexy about saying, 'I’m here with my boobs out and a short skirt … have a look at everything I've got'?
"My idea of sexy is that less is more. The less you reveal the more people can wonder."