Kardashian clan celebrate 'sweetest girl' Kendall Jenner's 18th with masquerade party

GALLERIES

Kardashian clan celebrate 'sweetest girl' Kendall Jenner's 18th with masquerade party

Kourtney Kardashian: "Happy Birthday to my sweet sister Kendall! It amazes me that you are 18 today. I am so proud to call you my sister and my best friend. I will never forget the day you came into my life and captured all of our hearts. I love you madly!"  Photo: © Instagram