On Sunday's upcoming episode of Keeping Up With The Kardashians, Kendall and Kylie Jenner continue to clash on the family's St. Barts vacation.
In a sneak peek released on Entertainment Tonight, 20-year-old Kendall becomes fed up with her little sister, 18, for packing on the PDA with beau Tyga, 26, instead of spending quality time with the Kardashian klan.
"It's so annoying because I literally waited for Kylie for 30 minutes to do the fly thing," Kendall tells Khloe Kardashian as they enjoy an afternoon of fly diving. "She just, like, took too long with T. And we couldn't do it, which is so annoying."
Before the drama-packed getaway, Kendall blasted Kylie to their dad Caitlyn Jenner for leaving a bonding day at the racetrack once Kendall arrived.
"I actually can't believe that Kylie is leaving right now," Kendall said. "We never get to spend time with each other. She doesn't have her priorities straight."
Meanwhile, in the sneak peek clip, cameras capture Kylie cuddling up to her rapper boyfriend during the family vacay.
Kendall may be in luck, however. As Radar previously reported, trouble seems to be brewing in paradise for Kylie and Tyga, who sources say have been fighting nonstop since Christmas.
Keeping Up With the Kardashians airs on E! Sundays at 9 p.m. ET.