Kendall Jenner Upset Kylie Invited Tyga On Family Vacation–‘He Ruins The Sister Vibe’

The Kardashian women may have been all smiles while vacationing in St. Barths back in August 2015, but as it turns out not everyone was happy about Kylie decision to bring Tyga along. HollywoodLife.com has EXCLUSIVELY learned that Kendal was beyond pissed, claiming : ‘He ruined the sister vibe.’

Remember when the Kardashian family took that luxurious trip to St. Barths back in August 2015? Of course, you do! Well, as it turns out, Kendall Jenner, 19, was furious with her sister Kylie Jenner, 18, for inviting her boyfriend Tyga, 25, along for the family vacay. The model-of-the-moment was looking to have some quality sister time with Kylie, a source tells HollywoodLife.com EXCLUSIVELY, and felt that the rapper really ruined the vibe. Ouch! To hear more about Kylie Jenner and Tyga, head over to iTunes and download the latest HollywoodLife podcast for free!

“Kendall misses having quality time with Kylie and had hoped they would get to have some one-on-one time in St. Barths, that’s why she was so upset that Kylie invited Tyga,” an insider close to the family tells HollywoodLife.com EXCLUSIVELY. “It’s not the same when it’s just the sisters. He ruins the sister vibe. Kendall was also bummed out that it was a surprise. Kylie never ever even asked if everyone was ok with her inviting Tyga. It was inconsiderate. Kylie and Tyga are already together 24/7, so why did  she need to bring him on a family vacation?”

The tension between Kendall and Kylie was first revealed during a preview clip for the season premiere of Keeping Up With the Kardashians, which airs on Nov. 15. In the clip, it is actually Kim Kardashian, 34, who reveals that the youngest Kardashian sister has invited her boyfriend along for the trip. While Khloe Kardashian, 31, is quick to defend Kylie’s actions saying, “Listen, I get it, I would rather be with a man, too,” it’s clear that Kendall doesn’t feel the same way. In a private conversation, Kendall tells her little sis, point blank, “I was really looking forward to this trip to hang out with you.” Though we don’t get to see Kylie’s reaction, it is clear that Kendall is genuinely hurt and upset about her sister’s actions.

Of course, this isn’t the first time the two younger sisters have butted heads. In fact, the 19-year-old recently revealed that her baby sister was once really bothered by all of the attention Kendall was getting due to her modeling career. “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 modeling,” Kendall told Cosmopolitan in their 50th anniversary issue. “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.”

Tell us HollywoodLifers — Do you think it was messed up for Kylie to bring her boyfriend on the family’s vacation? Or is Kendall overreacting?

— Alyssa Montemurro, reporting by Sandra Clark