Kris Jenner posted a series of sweet childhood photographs of Kourtney Kardashian to celebrate her daughter's 43rd birthday.
The eldest of Kris' six children was born on April 18, 1979, followed by Kim (now 41), Khloe (37), Rob (35), Kendall (26) and Kylie (24).
Included in the selection of snaps posted by the 66-year-old to her Instagram account are cute shots of a pig-tailed Kourtney, a family shot taken on a boat and another of her as a young girl with her father - the late American attorney Robert Kardashian.
Along with the pictures, Jenner shared a loving message to her "first born little angel," which also described Kourtney as her "very special best friend from the moment you were born".
The doting mum added she was "very proud of the woman you are" and said she was "so blessed and grateful to be on this journey of life with you".
She signed off with "Happy Birthday sweet girl" and a bunch of emojis, including a love heart, cake and balloon.
Her full message read: "Happy birthday to my beautiful daughter @kourtneykardash!!!
"You are my first born little angel and my very special best friend from the moment you were born. You are such an amazing daughter, mommy, sister, cousin, auntie and fiancé!!!!!!
"I am so very proud of the woman you are and I thank God every single day for choosing me to be your Mommy…. I am so blessed and grateful to be on this journey of life with you and I love you more than I can ever explain… you are my heart ❤️ Happy Birthday sweet girl."
Jenner had four children - Kourtney, Kim, Khloe and Rob - to first husband Robert Kardashian, who had previously dated Priscilla Presley - the ex-wife of legendary singer Elvis.
She went on to have two more daughters - Kendall and Kylie - with second husband and Olympic gold medal-winning decathlete Bruce Jenner, who came out as a trans woman in 2015 and changed her name to Caitlyn Jenner.
Keeping Up With The Kardashians became one of the longest-running reality television series in US history during 20 seasons of the show from October 2007 to June 2021.
Focusing on the personal and professional lives of the Kardashian-Jenner family it ran for 280 episodes and six special shows and it has now been resurrected in a new series - simply called The Kardashians - which aired for the first time on American streaming service Hulu last week.
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