There's some serious drama going on between Kendall Jenner and Kylie Jenner this season on Keeping Up With the Kardashians!

On Sunday's season 11 premiere, Kendall called Kylie the "biggest f--king bitch" she's ever met when Kylie refused to let Kendall wear her dress.

Now Kendall is letting everyone know what she thinks about Kylie's behavior in the Keeping Up With the Kardashians season 11 supertease video.

"What's the deal with Kylie?" Caitlyn Jenner asks Kendall.

"She doesn't have her priorities straight and I tell everyone that," Kendall says.

The drama between Kendall and Kylie isn't the only thing we'll see this season.

The supertease shows the Kardashians sitting down with Scott Disick to talk about his breakup with Kourtney Kardashian and we also see Kim Kardashian becoming very concerned over her elevated blood pressure during her pregnancy.

"I really hope it's not diabetes," she says. "I'm like actually scared."

Take a look at the supertease above to see what's coming up this season on Keeping Up With the Kardashians!

Watch all-new episodes of Keeping Up With the Kardashians Sundays at 9 p.m., only on E!

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