Kim Kardashian wants to be "skinny for a day."

The Keeping Up With The Kardashians star has learned to accept her curvaceous figure, but she still wishes she was thinner and wants to have a supermodel's figure.

"If I could have anyone's body, I'd love to be a supermodel. I'd love to be skinny for the day. It's a process. You have to learn to accept it. You have to learn to like what you see in the mirror, but there are definitely times when I don't. I'm built a certain way and you just can't change that."

The 31-year-old star - who is in a relationship with Kanye West - is "not always confident" about showing off her body, and despite working out at the gym on a regular basis, she has particular hang-ups about her thighs.

"In Hollywood, people are used to stick-skinny women, and that's never going to be me. Growing up, I'd look at those skinny models and feel like I looked different. I'm not always confident. I have hang-ups like everyone else - I've never been a big fan of my thighs. I work hard at the gym to look like this. It's not easy and I have to work at it every day of the year, and watch what I eat."