Kim Kardashian's Birthday: Read Khloe, Kris, and Kendall's Touching Instagram Posts to the Reality Star

Happy Birthday, Kim Kardashian West! The reality star turned 34 on Tuesday, Oct. 21, and was showered with love by her family in several touching Instagram posts.

North West's Aunt Khloe, who has gone through her fair share of ups and downs this past year, thanked Kim for being a shoulder to lean on. Captioning a collage of pictures of the two of them, Lamar Odom's estranged wife wrote: "Happy birthday sister!!!! My bestie, my confidante, the keeper of my secrets (well only if I threaten your life) the sharer of my world. You have become an amazing woman. I couldn't be prouder or more inspired. Enjoy your birthday KiKi! I love you like a fat kid loves cake! @kimkardashian."

Kim's half-sister Kendall Jenner gave the reality star a shout-out, too, captioning a series of black and white photos: "Happy Birthday to my beautiful sister! I don't know what I would do without your amazing soul. lots of love sister pants."

Kanye West's wife's older sister Kourtney shared an adorable throwback photo with the caption: "Even though I was the bossiest older sister she could ask for, she always loved me. Happy birthday to my sidekick. I love you."

Even though I was the bossiest older sister she could ask for, she always loved me. Happy birthday to my sidekick. I love you.

A photo posted by Kourtney Kardashian (@kourtneykardash) on Oct 10, 2014 at 2:07pm PDT

The birthday girl's mom, Kris Jenner, also took time out of promoting her new cookbook to wish her daughter a happy birthday. "Happy Birthday to my precious daughter, best friend, and partner in crime. You are the best daughter, wife, and mother and you have the biggest heart. You amaze me every single day and I am so blessed to have you to love. Enjoy your special day @kimkardashian I love you! #love #family #happybirthday," she wrote alongside a throwback picture of Kim as a little girl.