Rob Kardashian just turned 31 and his family is celebrating his birth with a series of sweet snaps on Instagram.

Kim Kardashian's post is definitely my favorite β€” it's just a picture (emblazoned with the March Madness logo?!) of Rob and his (ADORABLE) daughter Dream Kardashian being all cute.

Kiki also posted an older photo of herself and Rob and captioned it, "Happy Birthday to my brother Rob!!! I love you so much and wish you all of the happiness in the world! I love raising our kids together, you're the best dad and friend! Can't wait to celebrate today!! πŸ€πŸ€πŸ€"

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KhloΓ©, never one to miss out on wishing a sibling a birthday on social media, posted a similar (same?!) photo of Rob with the sweet caption, "Happy birthday Rob!!!! This year is YOURS! I can't wait to see all you conquer! Seeing you as a father has been so rewarding! You're an incredible father, brother and friend! I can't wait to raise our daughters together! I love you Bob πŸ’™"

Kourtney took a trip to the past to post a photo of young king Rob and the caption, "birthday boy."

Mama Kris had to get in on the action, too! She posted a collage of Rob through the years with the caption, "Happy birthday #robkardashian!! You are the most wonderful son a mom could ever ask for and I thank God for you every day! It brings me so much joy to see the incredible father you have become. I am so proud of you!! Love, Mommy x #HappyBirthdayRob #ProudMama"

Rob also took to Snapchat to post a series of pics of Dream β€” each cuter than the last! That is one cute bb!

And this is unexpected! Blac Chyna got in on the birthday wishes, posting a year old photo of her, Dream, and Rob (wearing a Shamrock necklace!), with the caption, "Happy birthday Rob from Dreamy and Chy"

I guess Rob is back in with everyone?! It's a St. Patrick's Day miracle!

From: Cosmopolitan US