Although the Keeping Up With The Kardashians stars live under different roofs, it seems they get in touch with each other first thing in the morning for a catch up.
Kim tweeted yesterday: "Just to give you a glimpse of a regular day. My entire fam starts out our days with group text messages."
Sadly, she didn't provide any screengrab examples!
The whole Kardashian Jenner clan were marking Rob Kardashian's 28th birthday yesterday, so no doubt there was lots of birthday planning going on.
Kim and sisters Khloe, Kourtney, Kendall and Kylie all left heartfelt public messages for their only brother, while his mother Kris Jenner gushed about her only son via Instagram.
"Happy Birthday to my one and only brother Robbie!!!! I remember this Vegas party of yours like it was yesterday! I love you so much and can't wait to share so many more memories with you! Kiki Riki!!!!"
"Happy birthday @robkardashian!!!!!! Never will I ever meet another man as great as you! I know this is the year where you will find your happiness again! I will be right by your side, holding your hand, every step of the way!!! I adore you my one and only brother!! "
"Happy happy birthday to one of my best friends in the entire world who makes me laugh like no one else. Roberto, you have a heart of gold and a sweetness that is infectious. You are one of a kind. Happy birthday Rob Dawgy Dizzle."
"Happy birthday to my incredibly silly, wildly handsome big brother!!! @robkardashian YOU ARE MY FAVOURITE PERSON...ever! this guy is responsible for all the belly laughs I've had throughout my entire life. all the love in the world for this man."
"... I still want to sit on ur lap like ur little sister I still am MY LOVE FOR U IS ENDLESS!!!!!! Happy birthday Robby."
All you need to know about Kim Kardashian!