Siblings fight all the time - if they didn't, Keeping Up With The Kardashians would be pretty boring. On the 15th season premiere, Kim and Kourtney got into a huge fight over scheduling a family photoshoot. Kourtney said she has to leave at 4pm on the selected day and doesn't "care what anyone says." Kim complained that she has meeting scheduled, and Kourtney told her to move to 7am. That's the moment where Kim boiled with rage, and turned into The Incredible Hulk. Kim told Kourtney to "get the f*ck out of here" and claimed nobody wanted her at the photoshoot anyway. "Maybe if you had a f*cking business that you were passionate about then you would know what it takes to run a f*cking business," shouted Kim. As Kourtney stormed away, Kim added, "I need Kourtney to not be so f*cking annoying with a stick up her ass like she f*cking runs this sh*t, because she doesn’t. She’s <a href="http://vt.co/news/us/kim-kardashian-absolutely-blasts-kourtney-in-new-footage-and-says-shes-the-least-exciting-to-look-at/">the least exciting to look at</a>, so she can be out." [[youtubewidget||https://www.youtube.com/watch?v=urzF5LjN5kY]] Later in the show Kourtney called Kim "a very distraught, evil human being." That's a pretty good comeback, but an even comeback is the photo Kourtney posted night. The 39-year-old mother-of-three went out with her sisters to celebrate Kylie Jenner's 21st birthday. It was a luxurious night on the town, with drinks, dancing and a ball pit. (And best of all, no kids!) In the hot snapshots from the birthday bash, all of the ladies look stunning - especially Kourtney. She shared a photo of her slinky outfit, which was straight fire. The image got over two million likes, and one of the likes came from Chrissy Teigen, which is worth more than two million likes. [[instagramwidget||https://www.instagram.com/p/BmScF6ODmmq/]] In the comments, everyone posted fire emojis. "I've never seen Kourt this beautiful," wrote one Instagram user. "Beautiful bish," wrote another. "Rather look at you the Kim K," wrote a third. And guess what? A wild Kylie Jenner showed up! The 21-year-old billionaire beauty mogul clapped back at Kim with her comment. She wrote, "Happy birthday. You're so interesting to look at." You might be thinking, "Wait. I thought was Kylie's birthday. Why is Kourtney saying thanks for the birthday wishes? And why is Kylie wishing her a happy birthday?" Well, when the sisters posted their photos from the party, they each joked that it was their birthday. I don't know why. It's just how the Kardashians roll, I guess. Remember, they taped last weeks' episode Keeping Up With The Kardashians back in November. So, spoiler alert, it looks like the "evil human being" and "the least interesting one to look at" have made peace. Although they have been reliving their argument on social media, so maybe bickering with your siblings is peace. Anyway, in the photos from Kylie's party, Kourtney is probably the most interesting one to look at.

Kylie Jenner claps back at Kim Kardashian for calling Kourtney 'the least interesting to look at'

Top Stories

Entertainment

Cardi B and Offset unfollow each other after cryptic social media post

Entertainment

'Despacito' singer Daddy Yankee retiring from music to devote his life to Jesus: 'I will live for Him'

Entertainment

Julia Roberts speaks out about her ex Matthew Perry dying 'so young'

Entertainment

Adam Driver's heartbreaking response to being asked if his appearance has been a 'hindrance' to his career

Entertainment

Suzanne Somers' husband reveals the reason she was laid to rest wearing Timberland boots

Entertainment

Mr Universe bodybuilder Shaun Davis dies aged 57