Scarlett Johansson says it is "horrible" being a curvy woman.

The "He's Just Not Into You" actress is frustrated by the unwanted attention she receives for her looks and hates the way Hollywood are obsessed with appearances.

Last year fashion designer Isaac Mizrahi grabbed the star's breasts on the red carpet, which she says was a very unpleasant experience.

She explained: "It was horrible. I didn't know what to do. It was very awkward.

"It's funny coming up in the industry: I never thought about being sexualised. But people are obsessed. Obsessed with weight, curves. It's nuts. I have my own standard of how I like to look. I'm a healthy person and I take care of myself."

The 24-year-old star is also frustrated by the unwanted criticism she has faced regarding her sex life.

The beauty - who married actor Ryan Reynolds last September - was branded a "tramp" last year when she admitted to getting tested for HIV twice a year.

But the star is adamant she has nothing to be ashamed of.

She explained to The Times Style Magazine: "It became, like, she's a tramp, she gets an HIV test. At the time, I was single. You have to. It's mandatory. Why would you not? People don't want to talk about sex: it is a very strange reaction. Like, she's having an HIV test. She's having sex! At least it kind of starts the conversation.

"You just have to swallow it. It's frustrating, but I'm not a very confrontational person. You hope it fizzles away."

(China Daily/Agencies, April 7, 2009)