While she's been celebrating North West's fifth birthday in New York this weekend, Kim Kardashian decided to send a message to her son, Saint, on Instagram.

As she's in New York city for North's birthday party, which so far has involved a trip to Dylan's Candy Bar, and a performance of Frozen on Broadway, Kim is clearly missing her younger children, who are presumably back at home.

In the adorable post, Kim shared a photo of Saint West as they snuggled together in bed, along with the caption, 'Missing my boo...':

instagramView full post on Instagram

After stepping out with her daughter in New York, Kim was extensively criticized on social media for allowing North to straighten her hair. As the reality TV star had previously celebrated her daughter's naturally curly hair and learnt how to braid it, critics claimed that Kim should've kept North's hair natural, and not used heating irons to create the child's look.

The makeup mogul previously opened up to Interview about her daughter's hair saying:

She’s obsessed with her curly hair, and if she finds someone who has the same hair, she runs to them and is like, 'You have curly hair like me?' And we get to talk about it. We also talk about it with my niece Penelope, because she and North look really different, but they’re best friends and they’re together all the time.

Even though Saint and Chicago appear to have missed out on North's New York birthday celebrations, it's clear that their mom is always thinking about them.

From: Harper's BAZAAR US
Headshot of Amy Mackelden
Amy Mackelden
Contributing Writer

Amy Mackelden is a freelance writer, editor, and disability activist. Her bylines include Harper's BAZAAR, Nicki Swift, Cosmopolitan, Marie Claire, ELLE, The Independent, Bustle, Healthline, and HelloGiggles. She co-edited The Emma Press Anthology of Illness, and previously spent all of her money on Kylie Cosmetics.