Plus, she shares the real reason behind her major haircut
Credit: Mert Alas and Marcus Piggott/Vogue

Kendall Jenner has just achieved her biggest milestone as a model: covering Vogue‘s September issue — and she’s not the only one freaking out about it. The entire KarJenner krew is ecstatic as well — and that includes brother Rob Kardashian, who made his return to Instagram just in time for Kendall’s September issue debut.

Kardashian, who recently deleted all of his Instagram photos (and unfollowed his fiancé, Blac Chyna), returned to Instagram with a photo of Kendall’s cover, captioned his Instagram: “I’m so proud of you baby Sis‼️‼️‼️‼️‼️‼️ September issue VOGUE!! ????? LOVE YOU KENNY”

Of course, her biggest supporters, Kris, Kourtney, Kim and Khloé couldn’t contain their excitement either. Mom Kris wrote, “OMG Kendall, you’re on the SEPTEMBER COVER of VOGUE!!! This is so huge!!! This is the most beautiful thing I’ve ever seen, but more importantly what an amazing, iconic moment in your career. I couldn’t be prouder of you, your work ethic, your professionalism, your stunning beauty, and most importantly your huge heart, you’re such an amazing girl and it’s your time to shine.” (She followed it up with an inside shot, since a momager’s work is never done.)

And while all of the family’s posts were incredibly heartfelt, Khloé’s tribute was the most emotional of the bunch. (See Kim’s and Kourtney’s, if you’re so inclined! Kylie remains mum on the subject, but don’t worry: On her app today, Kendall assures us she’s still incredibly close with her baby sis.)

“Kendall you did it!!! You really did it! This is just the beginning baby girl,” she wrote. “I wish people realize how many sacrifices you have made. How many family events you had to miss out on. How many times you weren’t able to hang out or do the normal social thing at 20 because you were working. How many things you’ve missed out on because you have been focused and Prioritizing. The endless times you were homesick and lonely. Congratulations to one of the sweetest, most humble and down-to-earth girls! Your passion, bravery and drive helped get you here! Kenny, I am so proud of you for reaching one of your so very high goals! It’s only the beginning! Your future has no limits! I have loved watching you sparkle! I can’t wait to see the fireworks you create!”

Credit: Courtesy Kendall

As for Kendall’s own excitement, the 20-year-old has taken to her website to share her thoughts and give us a behind-the-scenes look inside the shoot — including her major haircut moment with hairstylist Garren (pictured above). “My shoots for the Vogue September Issue were so much fun,” she wrote in the post. “One day, we shot at the craziest house in Beverly Hills with a lake in the backyard. They asked me to cut my hair and, of course, I agreed!”

What do you think of Kendall’s cover? Sound off below!