Kourtney Kardashian calls Kim Kardashian her 'forever best friend' in rare photos

The feuds between Kourtney Kardashian and her sister, Kim Kardashian, seem to be over, at least for now. In fact, the Poosh founder paid homage to Kim, who turned 45 on October 21. While they couldn't be together, as the latter was busy promoting All's Fair in Europe, Kourtney dedicated an entire Instagram Carousel to her younger sister.

We love to see it!

In the Carousel, dated on October 21, Kourtney shared throwbacks, just as Kris Jenner and Khloé Kardashian have with theirs for Kim. The snaps highlight a specific, fun time for the two eldest Kardashian siblings, and here's hoping they'll continue making more together.

From childhood to successful and achieving businesswomen, Kim and Kourtney took whatever came their way and created something even better than before. This ambition was evident in the KUWTK spinoffs, Kourtney and Kim Take Miami and Kourtney and Kim Take New York. In both of these, the women scoured for property to expand DASH Boutique by opening new locations. The store staff were also chosen by the women, and they got to experience life outside Los Angeles, albeit one that was still remarkably lavish.

Kourtney Kardashian and Kim Kardashian are the cutest in these 2000s snaps!

Now, back to Kourtney's Carousel. She included some pre-fame photos of her and Kim from the 2000s. I think it's safe to assume now that the Kardashians were the definition of Y2K pop culture and its addictive aura. They were hitting the right hot spots, partied with Paris Hilton and Britney Spears, and were rumored to be dating some big names.

However, Kourtney's photos show a much more toned-down side of the decade, with a couple of early selfies. Then there's a sweet photo of Kris holding her daughters when they were babies, and a black-and-white side-by-side portrait from the 1990s.

For good measure, a pregnant Kourtney sits besides Kim as they wear matching pajamas and a couple of tropical escapes. It's just what sisters do and they do it well!

To top it off, the Lemme founder writes the sweetest little caption!

"Best friends forever."

As we mentioned, the sisters' relationship shows no new feuds. As Kourtney said on The Kardashians, it's not worth the negativity and stress; they should focus on positive vibes. It's just common sense, and besides, fighting over fashion (ahem, Dolce and Gabbana) isn't going to solve anything.

But that doesn't mean that it was a tough and interesting play out!