Kim Kardashian will ''definitely'' have a boob lift when she has children.

The 'Keeping Up with the Kardashians' star - who is dating Kanye West - insists she has never had cosmetic surgery but will be comfortable going under The Knife in future.

She said: ''It's crazy that people think I've had my nose, cheeks and lips done. It's just not the case.

''I'm not against plastic surgery. I will definitely need a boob lift after I have kids. Who knows if I will want to do my face one day? My mum did it, I told her to do it.''

The brunette beauty is known for her curvaceous figure but she insists she still watches what she eats, even though she sometimes finds it hard to resist certain treats.

She said: ''When you have curves, you're just a cheeseburger away from looking heavy.

''I'm changing the way I eat and it's a process because I have the biggest sweet tooth.''

Kim - who split from husband Kris Humphries after just 72 days of marriage last October - insists she never reads negative comments about herself and is thankful to have loyal fans.

She added to the British edition of InStyle magazine: ''I don't read those [negative] comments. I don't care anymore. There were always haters but my divorce gave them a platform. My fan base has stayed loyal and the same. Yesterday a fan said, ' I have no sisters, you are my sisters. I watch you guys and wish I had that.'''