Thanks for being the best friend and sister a girl could ever ... "I love you to absolute pieces my love. Happy 40th Birthday Khlo and cheers to many many more ." Khloé reposted the post ...

"Thank you to all my [beautiful ... writing, "HAPPY 40th BIRTHDAY SCHMILLY BON BILLY!! We love you Lily. Hope we celebrated you good and proper." Several famous friends shared birthday wishes ...

The Cleveland Cavaliers player, 33, penned a touching tribute to Kardashian as she celebrated her 40th birthday ... wrote, “Happy Birthday Khloé!!” and “You are my best friend” on one ...

Celebrated my 40th birthday with love and warm ... took to Instagram to send his best wishes, acknowledging her as his "best friend" alongside a sweet family photo. It's clear that Khloé is ...