Kendall Jenner thinks her sister Kylie needs to get her "priorities straight".
Kendall and Kylie Jenner
The 'Keeping Up With The Kardashians' star blasted her 18-year-old sibling for asking her boyfriend Tyga to tag along with the family as they enjoyed the sun in St Barts earlier this year.
Whilst Kylie remained silent, Kendall told her: "I was really looking forward to this trip to hang out with you."
Later during their E! reality show, the 20-year-old model had a frank conversation with her father Caitlyn Jenner, insisting Kylie needed to sort things out.
When the 'I Am Cait' star asked "what's the deal with Kylie," her elder sister shared: "She doesn't have her priorities straight and I tell everyone that."
There has always been sibling rivalry between the pair with the Victoria's Secret model previously revealing it is "natural" for them to be jealous of each other at times.
She said: "She's a Leo so she loves attention, and at certain points when we were younger, it bothered her that I was getting attention in terms of my modelling. I think that's a natural younger sister thing - to be jealous.
"I was jealous of her sometimes too! But now she loves what I do and supports me. She's very into fashion and always texts me when I'm doing a big show like, 'That is the sickest thing ever! How were the clothes?' It's as much a part of her life as it is mine."
Tagged in Kylie Jenner Kendall Jenner Caitlyn Jenner