Making waves! As Keeping Up With the Kardashians fans saw last week, Kylie Jenner invited Tyga to St. Bart's on her trip with her sisters, which led to tension among the ladies. And it turns out things are going to get even more strained in Sunday's new episode.

In the footage from the hit E! series, the group heads out for a boating trip, where Kylie, 18, and her 26-year-old rapper boyfriend spend time playing with a device that sprays water to make someone airborne. Unfortunately, Kendall Jenner gets left out of the fun. The series' previous episode also showed that Kendall, 20, was irritated with Kylie for bringing her man instead of just logging quality time with her family.

"It's so annoying because I literally waited for Kylie for 30 minutes to do the fly thing," Kendall tells Khloé Kardashian in the clip. "She just, like, took too long with T. And we couldn't do it, which is so annoying."

To see Kendall explain what bothered her the most about the situation, watch the video above.

Keeping Up With the Kardashians airs on E! Sundays at 9 p.m. EST.  

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