It was only a matter of time!
It's common knowledge now that the Kardashian-Jenners are super tight with Balmain creative director Olivier Rousteing.
So it's not unbelievable that he would handpick Kendall Jenner and Kylie Jenner to star in the brand's latest campaign!
[ Related: Kendall & Kylie Are Glamorous At The ESPYS ]
After all, Kendall also accompanied Olivier to the Billboard Music Awards wearing Balmain for H&M just a few months ago.
But this particular campaign has to be extra special because Kenny gets to pose with her little sister!
In fact, it's all about siblings for Balmain's Fall 2015 campaign — Gigi Hadid along with sister Bella, Joan Smalls and sister Erika Smalls, and male models Armando and Fernando Cabral will also be featured in ads.
Isn't that so awesome?
For now you can check out Joan and Erika's ad in the gallery (above)!
[Image via Balmain]
Tags: ad campaigns, balmain, bella hadid, erika smalls, fashion smashion, gigi hadid, joan smalls, kendall jenner, kylie jenner