Kylie Jenner and Kim Kardashian have always had a sibling rivalry — but the cosmetics connoisseur took things to a new level with her latest diss.

According to Star magazine, the 19-year-old’s ego is SO inflated she doesn’t think she needs to appear on Keeping Up With the Kardashians anymore — and allegedly made hurtful comments about Mrs. Kanye West.

MUST SEE: Kylie Jenner Flaunts Her Tiny Waist in Sexy LBD

View this post on Instagram

❤️ @kyliejenner

A post shared by Kim Kardashian West (@kimkardashian) on

“Kylie is so sure of herself that she recently dissed Kim, telling her big sister she was more famous now,” said a source, who added she would “rather focus on her lipstick and cosmetics lines” than take part in the family’s E! reality series — which she allegedly referred to as a “sinking ship.”

We’re stunned to hear Tyga’s girlfriend would speak so lowly of the 35-year-old — given there was a time she admitted she wanted to BE her older sibling Kim!

kim kardashian kylie jenner

“I do want to be Kim,” she confessed in January. “I think people forget that me and Kim are sisters. We’re not in a competition, we’re completely different people and Kim inspires me — she’s one of my biggest inspirations. That’s not a secret. I look up to my sister. I don’t think that’s a weird thing.”

We hope this is nothing more than a friendly competition!