Kim Kardashian, Kris Jenner and More Family Members Send Sweet 29th Birthday Messages to Rob Kardashian

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Happy Birthday, Rob Kardashian!

The reality star rang in birthday No. 29 on Thursday, and to celebrate, his famous family took to social media to share some sweet messages.

PHOTOS: Rob Kardashian Kicks Off Birthday at Legoland With Blac Chyna

"Happy Birthday Rob!! God blessed me beyond measure the day you were born," Rob's mother, Kris Jenner, wrote on Instagram, accompanied with a black-and-white snap of her son dressed in a classic black tuxedo. "You are the most amazing man who is kind, funny, smart and you have the best heart. You are beautiful inside and out and have brought so much joy into my life. Thank you for being the best son a Mom could ever dream of...I love you soooo much @robkardashian and I'm so proud of you. Mommy."

Khloe Kardashian's message -- which included a throwback pic of her, Rob and Kim Kardashian -- was just as sentimental.

"Happy birthday to my sweet brother! My best friend! My ace forever!!!" she wrote on her website, later posting a similar message to Instagram. "My love for you knows no bounds. You are and always will be my ultimate and all I ever wish for you on this day and everyday is your true and complete happiness. I love and adore you Rob!! No one will ever get our bond and I love that!"

WATCH: Rob Kardashian Shares a Sexy Makeup-Free Selfie of Blac Chyna

"I love these pics from your 24th birthday party in Vegas and I can't wait to celebrate with you this year!!!" she continued.

Kim echoed her sister's statement on her own website, writing, "Robby: Happy birthday!!! I love you and I hope you have the best birthday ever. I'm so proud of you!"

WATCH: Rob Kardashian Looks Noticeably Slimmer on Trip to Jamaica

Meanwhile, Kendall Jenner kept her birthday wish to Rob on her website simple and sweet. "Happy Birthday, Bobby!" she wrote. "Love you, you are such a light on this earth." It was later followed up with a group pic of her, Rob, Kylie and Kourtney Kardashian, proving they were taking selfies before it was even cool.

Kylie Jenner followed in her sister's footsteps, sharing a sweet vintage snap of she and Rob. "Happy Saint Patrick's Day & Happy Birthday Bobert," she captioned it.

Rob's friends also took to social media to send him birthday wishes, including Kourney's on-again, off-again boyfriend, Scott Disick.

"Love u bob happy bday," he captioned one of the four photos.

Although Rob's girlfriend, Blac Chyna, hasn't posted anything birthday-related on her social media accounts (yet!), the 27-year-old model helped her beau kick off his celebrations one day earlier at Legoland in Carlsbad, California.

As ET previously reported, the duo looked happier than ever as they snapped pics and walked around the theme park with Chyna's 3-year-old son, King Cairo, whom she shares with Kylie's boyfriend, Tyga.

 WATCH: Kylie Jenner & Rob Kardashian Are All Smiles Amid Family Drama

Despite rumors that Rob and Kylie have been feuding ever since he paired up with Chyna, the two put their reported drama aside earlier this week while appearing in a Snapchat video together.

Watch the video below to hear more.