Kourtney Kardashian Reveals Shocking Secrets: High School Fights With Sister Kim Escalated to New Heights!

Kourtney Kardashian, Kim Kardashian. Courtesy of Hulu

Despite their feud over Dolce & Gabbana, Kourtney Kardashian couldn't resist showing birthday love to her sister Kim Kardashian. On Saturday, October 21, Kourtney, 44, took to her Instagram Stories to wish her "first sister" a happy birthday and express gratitude for all the years of bossing her around and her sister actually listening to her crazy ideas.

She continued by stating, "The fights people witness on TV are nothing compared to the hair-pulling, nail-digging ones from our early high school days. It's all part of the joys of sisterhood."

Courtesy of Kourtney Kardashian/Instagram

Fans witnessed a significant shift in Kourtney and Kim's relationship during season 2 of The Kardashians. Tensions arose when the founder of Lemme accused Kim's collaboration with D&G of copying the aesthetic and outfits from her wedding to Travis Barker in May 2022. Kim refuted the allegations and even confronted her sister for "stealing [her] wedding destination" of Italy, where she had married her ex-husband Kanye West in 2014.

Although Kourtney and Kim eventually resolved their differences, rewatching season 2 episodes reignited the drama.

"All your friends are constantly reaching out to us with their complaints. Ironically, when you assume they would be confiding in you, they're secretly approaching us, expressing completely contradictory thoughts," Kim shared with her sister during a phone conversation in a September episode. "To manage this confusion, we've created a group chat specifically labeled 'Not Kourtney,' where we have to sift through and share the messages your friends send to us."

Kourtney, on the verge of tears, angrily referred to Kim as a "witch" whom she despised.

The pair seems to have resolved their conflict once again. Kim attended and posted pictures from Kourtney's recent baby shower, indicating a positive turn in their relationship. Kourtney's birthday tribute on Saturday further suggests that they have patched things up, expressing her everlasting love, well-wishes, and a year filled with happiness and joy.

Kourtney shared several throwback pictures of the sisters matching outfits from different occasions throughout the years. They dressed up as 50s girls for a childhood Halloween party and also got glammed up for a recent event.

Kim had a star-studded birthday dinner on October 20, which was attended by her family and friends. The guest list included celebrities like Hailey Bieber, Kimora Lee Simmons, and Ivanka Trump, as well as Kim's sisters, mom Kris Jenner, and grandma Mary Jo "MJ" Houghton.