Kylie Jenner reveals the secret behind her incredible body!

Kylie Jenner might only be 17, but she's already got a legion of female fans who envy her killer body.

As well as showing off her (ridiculously) larger-than-life lips, the KUWTK teen is also a fan of midriff-baring selfies – in fact, here's one she posted mere hours ago!

So how does the youngest Jenner keep those washboard abs? Well, turns out we should all be VERY jealous, as she's revealed she puts in virtually no effort and loves nothing more than eating piles of junk.

Oh, great.

"My mom always has so many sweets and so much candy around the house," Kylie said in a recent interview. "Every time someone comes over they're always like, ‘How are you not majorly obese in this house? There are so many sweets.' But my mom just loves her sweets."

So, does Kylie hit the gym after sneaking into the sweet cupboard? Well, not exactly… but luckily she has her dad's Olympic athlete genes to keep her slim.

"I eat so bad right now," she said. "I eat so many sweets and so much candy but it's the Bruce Jenner genes. I have to start working out very soon."

Unlike Kylie, Khloé and Kourtney, the Jenner sisters didn't inherit their mum's curves – just her sense of drama!