The post was shared alongside a series of photos, showing Atkin holding her new baby as well as her husband sleeping alongside him and their dog.
Despite being responsible for some of the best hair looks ever seen on reality TV royalty (AKA the Kardashian and Jenner clan), Atkin has previously remained quite private on the topic of her family life, with the exception of a pregnancy chat video which was posted on her Youtube channel in 2019.
The hairstylist is also close friends with beauty YouTuber Desi Perkins, who gave birth in 2020 after years of fertility treatment and documented the process for her fans.
Perkins commented on Atkin’s post: “I’m so happy the news is out! I’m so happy for you and mike and he is also just the cutest! Ocean and River will be great friends”