Kylie Jenner was ''kind of sad'' to turn 18.

The 'Keeping Up with the Kardashians' star, who celebrated the milestone birthday in August, insists she is in no rush to grow up despite her sexy image.

In a post on her newly launched website, she wrote: ''It's funny when I think about how people see me. Everyone thinks that I want to be older than I am, that I've been in some huge rush to turn 18. But in a weird way, turning 18 was kind of sad for me. Sad, but exciting at the same time; it's a milestone.''

Kylie, who is dating 25-year-old rapper Tyga, has no plans to become a party girl.

She added: ''I feel like people are also expecting me to just go wild now, as if I've been holding back. But I'm still the same girl that I was the last month, when I was 17.

''I'm still growing up, learning and making mistakes, just like any other teenager would - yet millions of people are watching and judging me. That's the part I don't know if I'll ever get used to.''

The blonde beauty, who recently moved into her own home in Calabasas, California, also admits ''now there's a whole lot more responsibility that goes along with life'' after years of being ''the baby of the family.''

She wrote: ''People are expecting more out of me and that's overwhelming and nerve-racking.''