Kim Kardashian is celebrating Khloe Kardashian’s milestone 40th birthday with an affectionate message, despite recently making a sharp remark about her on the latest episode of The Kardashians.

On Thursday, June 27, Kim, 43, took to Instagram to post a heartfelt tribute to her younger sister. “Welcome to the f***ing 40 club, baby!!!!!” Kim started. “I feel like you’ve been waiting forever to move past your 30s, and the time has finally come. I’m confident this decade will be your best one yet, filled with love and happiness. You truly deserve it!”

Kim reflected on their shared experiences, saying, “What a wild ride we’ve had! I couldn’t have done it without you. Thank you for being the best friend and sister anyone could ask for. Happy Birthday!”

Accompanying her message were nostalgic photos of Kim and Khloe in glamorous outfits. Khloe responded in the comments with affection for her sister, whom she calls “keeks.” “I love you, my keeks!!!! You are the most amazing person, and I feel so lucky to have you with me!!! You’re everything and more!!!! Finally, I’m in the club!!!!! It feels fantastic.”

Kris Jenner also took to Instagram to celebrate Khloe’s birthday, praising her as a “remarkable” mother. “Happy birthday to my beautiful, delicious angel!!!!!!” Kris began. “I don’t know what I did to deserve you, but I thank God every day for the blessing of being your mom. You are one of the greatest joys of my life, and I treasure every moment we’ve shared.”

Kris highlighted Khloe’s qualities as a mother and her role within the family. “Watching you as a mom has been incredible,” Kris wrote, referring to Khloe’s dedication to her children, True and Tatum, as well as her role as a favorite aunt. “You are so joyful, funny, and full of life. Being with you always makes me feel special.”

Describing Khloe as “everyone’s biggest cheerleader,” Kris continued, “You make each of us feel loved and valued. I feel so lucky to share my life with you. Thank you for your positivity, strength, sensitivity, and support. I love you beyond words. Happy birthday, my beautiful girl.”

Kris also shared nostalgic photos of Khloe, including images of them in denim on a tractor and a black-and-white picture with Kim and Kourtney Kardashian.

Khloe herself took a moment to reflect on her 40th birthday, expressing gratitude and excitement for the new decade. “Deeply grateful for every moment,” she wrote beneath a video showcasing her life over the years, which included a rare appearance by her brother Rob Kardashian. “I love you! I’m thrilled and thankful for this new decade and all it has in store!!!”

Kim’s birthday message came just hours before the new episode of The Kardashians airs, in which Khloe and Kim have a heated exchange. Khloe calls Kim a “petty little b–ch” during their argument over Khloe’s parenting style and her tendency to spend time at home with her children.