Kylie Jenner wants to be 17 for ''the rest of her life''.

The 'Keeping Up With The Kardashians' star turned 18 last month but admits she wishes she could be a teenager forever.

She said: ''For me, age is just a number. The reality is that I don't even want to be 18. I wish I could be 17 for the rest of my life.

''I don't want to get any older. I just want to be young and enjoy it, but this lifestyle absolutely made me grow up faster.''

And the 18-year-old television personality also opened up about her step-sister Kim Kardashian West, admitting she looks up to the star and wants to have a similar business acumen and work ethic.

She shared to Galore magazine: ''Kim has definitely inspired the business side of me the most.

''It's her work ethic. If she wants to do something, she goes out and does it. She's really smart in that way.''

Meanwhile, Kylie recently admitted she and sister Kendall Jenner are ''scared'' of ageing.

She said: ''I'm scared of the day I turn 19. I really don't want to grow past 18.''

Speaking to the 19-year-old model, she added: ''You'll be 20 this year - that's crazy. And any second you'll be, like, 21, 22, 23 ...''