There is never any shortage of drama on a Kardashian vacation. In a preview for the next episode of "Keeping Up with the Kardashians," the famous family is off to St. Barth's for a vacation, but tensions arise when it is revealed that the youngest member of the family, Kylie, invited Tyga.

In the teaser for the upcoming two-part episode, Kim Kardashian is the first person to voice concern over Kylie inviting her rapper boyfriend, and Kendall is less than pleased.

"You could have taken this time to be with your family," Kendall tells her younger sister in the clip, which also features shots of the 18-year-old hugging and cuddling her 25-year-old boyfriend.

Kylie is not the only person to have boy trouble in the preview though. It is revealed that the trip to St. Barth's is the first family vacation without Kourtney Kardashian's ex-boyfriend and father of her three children, Scott Disick. At one point in the preview, Kourtney, Kendall and Kylie flip through pictures on a phone while Kendall asks "is that Scott with two girls?"

"This is the first trip without Scott, he's still causing a problem," Kim says. "I just hope it doesn't ruin the trip."

Scott and Kourtney broke up over the summer after almost ten years together when pictures were released of Scott getting a little too close to one of his ex-girlfriends. While Kourtney and Scott are trying to make co-parenting work, the oldest Kardashian singer has recently been linked to 21-year-old pop star Justin Bieber, as HNGN previously reported.

"Keeping Up With the Kardashians" airs Sunday at 9 p.m. on E!

Check out a preview of the dramatic family vacation below.