The Kardashian and the Jenner brood may disagree and fight about a lot of things, but they usually stick with each other. After all, that is the crux of the reality show. Anyone who has watched "Keeping up with the Kardashians" will know that the matriarch, Kris Jenner, goes to extreme lengths to ensure that none of her kids are fighting. Nevertheless, there seems to be a discord between Kylie and Kendall, the youngest of Caitlyn Jenner's daughters.

The promo for episode 15 suggests that that the two are on different tangents and Kylie doesn't get Kendall's attention when she needs it the most.

The preview for the latest episode captures Kylie's anxiety Billboard Music Award's red carpet. Tyga's girlfriend looks for her elder sister for support but Kendall seems to be busy with her work commitments.

Kendall says, "It's weird because Kylie and I do red carpets together but I'm with H&M and I'm only going to worry about that because that's what I'm here for."

For Kylie, the red carpet poses one of the most difficult appearances she's had to make. Kylie, who just turned 18 a few months ago, has been plagued with questions about her lips, her dad's transformation into a woman and her relationship with Tyga.

No wonder then that the youngest Jenner had this to say: "I'm getting super anxious and nervous while doing these interviews and I really wish Kendall's going to be with me."

When her sister didn't show up, Kylie walked away from the red carpet, stating that she's not feeling well.

Perhaps Kendall could lend her some support whilst facing the paparazzi.

"Keeping up with the Kardashians" season 10, episode 15 airs on Sunday, 27 September at 8pm on E!. You can live stream the episode online here.