Thanks to the never-ending run of Keeping Up With The Kardashians, there isn't much we don't know about Kendall and Kylie Jenner.

The world has watched them grow up from young kids into high fashion models, designers for PacSun and authors (kind of), but we have also witnessed them learning about periods, exploring contraception, and their reaction to their parents' separation. So that's uncomfortable.

The girls were aged just 10 and 12 when the reality show first arrived on their doorstep to document every move they made, and they've admitted in a recent interview that they can't remember a time before the cameras.

Not sure if lack of childhood is totally fabulous and showbiz, or kind of depressing. Hmm.

Talking to Du Jour magazine about literally being born into fame thanks to their Olympic champion dad Bruce, Kendall and Kylie admitted that they can't get their head around the idea of a life without cameras.

"I don't think we really remember a time before the cameras", Kylie confessed.

Kendall explained: "Even before the show, when we were babes - four or five years old - we'd be walking the red carpets with our dad."

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Bear Grylls//Digital Spy
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Bear Grylls//Digital Spy
Kendall's camera face has improved a bit

They also admitted that despite seeming pretty confident in themselves (ahem), living in the spotlight can drive them to anxiety. Also quite depressing.

Kylie admitted: "I feel like everyone's always staring at me, so I get weird around people now", which isn't all that inaccurate when you have 7 million Twitter followers and 11 million Instagram followers.

Asked what they think it would be like to not live a life in the public eye, Kendall pretty sadly confessed that she "wonders about it all the time": "It's hard to imagine a day when the cameras won't be there, because it's all we know."

But before you start crying too much for the little rich girls with their own Range Rovers but no privacy, Kendall added: "I don't foresee there being a point where we say 'Ok, this all has to go away'. Because I mean, it's not the worst job in the world."

Nah, it's probably not love.

What do you think about the balance between fame and privacy? Feel sorry for Kendall and Kylie, or do you have no sympathy? Comments below, or tweet us @CosmopolitanUK.