Kim: Kendall and Kylie know what’s normal

Kim Kardashian says her sisters Kendall and Kylie Jenner are “super grounded and responsible”.

The reality star’s younger siblings have grown up in the spotlight, having starred on the family’s TV show Keeping Up With the Kardashians from very young ages.

But while Kendall and Kylie have changed dramatically since their first foray into fame, Kim insists their morals have remained the same throughout, and will continue to do so.

“They know when things are normal,” Kim said during an interview with Access Hollywood’s Billy Bush. “They know that all their friends aren't going on private jets. They know that they are growing up with a life of privilege, but they are super grounded and responsible."

Kylie, 17, has been hitting headlines in recent weeks due to her various Instagram posts.

However, Kim insists that Kylie’s education is always at the forefront of her mind.

“She goes to school. She's home-schooled,” she said. “She has a year left. She goes to school every single day. So perception can be reality and people assume maybe she's not in school because she's not posting about being in school all the time."

Another reason for Kylie causing controversy recently is that the teenager admitted to enhancing her appearance with lip fillers.

Many criticised the teen for altering her looks at such a young age, but Kim says Kylie has every right to use fillers if she wants to.

"I saw how for so many years she was so insecure about it. I mean, at 10 years old, she would say to me, 'How come my lips aren't big like you guys?' ” she said. “And I would see this insecurity… For me, I gave her advice and I still stand by that advice. I think it changed her confidence so much."