Kim revealed she just plays up her 'party girl' image for the cameras.
The Keeping Up with the Kardashians star told US W magazine: 'I'm not a drinker, and when I'm up on the table dancing, it's for the picture.'
'Then I sit right back down, I play into the perception of me, but it's not really me and the show reveals that.'
And while the 29-year-old appears comfortable with her curvy body, she said it has taken a while to get used to it.
She added: 'I used to think, I have to be this or that or skinny, and now, because of the show, everyone is embracing just me, which has given me such a confidence.
'Now, I'm like, 'Why did I ever give that feeling the time of day?' I'm so mature now, I'm a grown-up version of myself.'