Kim Kardashian celebrated her 43rd birthday with an impressive collection of family and friends on Friday, October 20.

Notably, her sister Kourtney was not among them.

So blessed to have hit the jackpot of friends!

Kim Kardashian West and Kourtney Kardashian attend the amfAR New York Gala 2019 at Cipriani Wall Street on February 6…

Clint Spaulding/amfAR/Getty Images

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Kourtney responded with a warm birthday tribute to Kim.

The joys of sisterhood.

I love you deeply forever and always.

May God bless this year with love and happiness and abundant joy.

Kourtney Kardashian is currently expecting a baby boy with drummer husband Travis Barker.

The pregnancy has been a bit tumultuous, even sending Kourtney to the hospital foremergency fetal surgeryin September.

She also shares two sons and a daughter with ex-boyfriend Scott Disick.