Rob Kardashian shows off dramatic weight loss as his famous sisters post birthday photos

AS Rob Kardashian’s famous sisters posted photos all over social media to celebrate his 31st birthday, there was something noticeably different about the reality star.

Rob Kardashian has undergone a major transformation. Picture: Supplied

ROB Kardashian’s trim figure was on display over the weekend as he celebrated his 31st birthday on St Patrick’s Day.

In true Kardashian style, his famous sisters took to social media to wish him a happy birthday.

Older sister Kim, 37, posted a throwback photo on her Instagram of the two them at a New Year’s Eve party.

“Happy Birthday to my brother Rob!!! I love you so much and wish you all of the happiness in the world,” she gushed, before continuing “I love raising our kids together, you’re the best dad and friend! Can’t wait to celebrate today!”

Well-known for his late-night binge-eating and tumultuous relationship with ex Blac Chyna, the only Kardashian male has appeared to have turned a corner, looking relaxed and healthy in photos.

A very different looking Rob Kardashian with ex, Blac Chyna, in 2016. Photo: Supplied

Sister Khloe also acknowledged her brother’s big day.

“Happy birthday Rob!!!! This year is YOURS! I can’t wait to see all you conquer,” she proclaimed. “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.”

Holding his 18-month old daughter Dream in one arm, Rob is smiling at the adorable tot, wearing a fur vest and red bows in her hair.

My silly girl ! Ok last pic of the day lol! Everyone have a BEAUTIFUL weekend! Duke baby pic.twitter.com/HDtynixYYb

— ROBERT KARDASHIAN (@robkardashian) March 17, 2018

Dream featured in many of the social media posts, including Rob’s own message to himself; “Happy birthday to me :)” accompanied by two clover emojis.

Kourtney Kardashian posted an adorable photo of young Rob for his birthday. Picture: Instagram

Even ex-partner Blac Chyna even sent Rob birthday wishes via Instagram, despite being in the process of suing his mother Kris alongside Kim, for cancelling her TV show.

Blac Chyna wishes Rob Kardashian Happy Birthday. Picture: Instagram

Originally published as Rob Kardashian shows off dramatic weight loss as his famous sisters post birthday photos