‘KUWTK’ Video: Kendall Jenner Lashes Out At Kylie — ‘Be With Your Family,’ Not Tyga

The Dec. 20 episode of ‘KUWTK’ shows that Kendall Jenner’s disdain for Tyga started back in August, when she reprimanded Kylie for bringing him on a girl’s trip with them. Watch the drama unfold right here!

It’s no secret that Kendall Jenner, 20, isn’t a big fan of her 18-year-old sister Kylie’s relationship with Tyga, 26. Now we might have found where the bad blood started. Kendall was pissed that Kylie invited him on their family vacation back in August, and the fight made it’s way into the Dec. 20 episode of KUWTK. Check out the promo, here!

Kendall has been hating on Kylie’s relationship with Tyga for months, and now it seems like we’ve found the root of the problem. The promo for the Dec. 20 episode of Keeping Up With The Kardashians shows that the girl’s family vacation to St. Bart’s back in August was totally crashed by the rapper, and it definitely hurt Kendall’s feelings.

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While Khloe and Kris frolic in the gorgeous blue waters of the island, Kylie greets Tyga with a shriek of glee at the hotel. Kendall can later be seen having a serious talk with Kylie at dinner saying “you could have taken this time to be with your family,” while Kylie looked on with a stony expression on her face. You can buy Kylie’s signature shade of lipstick RIGHT HERE.

It seems like Kendall may have gotten her wish. While Kylie and Tyga were at the peak of their affection back in August, they have since waned greatly. After Kylie found evidence that Tyga cheated on Nov. 19, he has moved out of her house and they haven’t been photographed together in weeks. We’ll just have to tune in on Dec. 20 to see if this was the beginning of the end for Kylie and Tyga, and to see more of her fight with Kendall.

What do you think, HollywoodLifers? Was it uncool of Kylie to invite Tyga on her family vacation, or should he be welcome on their trips? Let us know, below!