Everyone knows that Kylie Jenner is the queen of makeup. She does amazing with her line, but now her sister Kourtney is joining in and the two have collaborated on a makeup [VIDEO] collection together for Kylie Cosmetics. Her sisters Kim Kardashian West and Khloé Kardashian have worked with her before, so it is just natural that Kourtney would be the next one to join her.

All about the new collaboration

Kylie Jenner shared all about the new Kourt x Kylie collaboration this week at Coachella.

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The full collection ended up coming out last night on Instagram because it was Kourtney's 39th birthday! This was the perfect time to celebrate it and let the fans see what they have been up to.

Kylie shared about it saying, "HAPPY BIRTHDAY TO THE QUEEN! so excited to announce the KOURT X KYLIE collaboration. this collection gives me so much lifeeeee! 3 mini palettes & 3 of Kourtney’s signature lippies launching 4/24! collaborating with you was so much fun! I love you!" The lipsticks come in a pale pinky nude, a true pink and a poppy red. These two sisters are really excited about the new makeup collection.

It turns out that they have been working on this for a year. It was really important to both Kourtney and Kylie and they seem really excited about it. If it goes well, then they could end up working together again in the future. Now it sounds like it is Kendall's turn next. She is the only sister to not work with Kylie yet on her line.

Kourtney in V Magazine

Kourtney Kardashian actually did the new issue of V Magazine to help promote the new makeup line.

The mom of three is posing in her birthday suit and looks amazing as usual. The only thing she is wearing in these pictures is the makeup that she recently made with her sister Kylie Jenner. That is a great way to show it off to the fans and get them interested in buying it. In just four short days, you will be able to get it yourself.

Kourtney explained that they had planned to do this last year, but they changed direction so it took a bit longer for them. The original plan had been to just do lips, but instead, they added eyes as well. The packaging also ended up way different than they had planned originally. It was a huge change, but they both seem very happy with the end results.

What do you think of the new Kylie Cosmetics makeup that Kourtney helped with? Sound off in the comments below, and don't miss new episodes of "Keeping Up With the Kardashians" when they air on Sunday nights [VIDEO] on E!.