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Rob Kardashian celebrates his pre-birthday in the cutest way ever (PHOTOS)

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Rob Kardashian and Blac Chyna unleash their inner child with awesome birthday adventure

Rob Kardashian turns 29 today (March 17), and instead of celebrating his birthday at a swanky club or an expensive restaurant, the youngest Kardashian chose to unleash his inner child.

More: Report claims Rob Kardashian would really love to get Blac Chyna pregnant

Kardashian took to Instagram on Wednesday evening to share photos of his pre-birthday celebrations, along with girlfriend Blac Chyna, and they are the absolute cutest. Where did Kardashian celebrate the build-up to his birthday, you ask?

Legoland California Resort, of course — and seriously, we haven't seen Rob smile this much in years.

A photo posted by ROBERT KARDASHIAN (@robkardashian) on

Pre Birthday Turn up

A photo posted by ROBERT KARDASHIAN (@robkardashian) on

Fans are thrilled to see Kardashian looking so happy and so healthy, and the pictures are littered with comments of encouragement and praise.

"You two are the cutest," angelakourtney wrote.

"Love you two," elliottlisa shared. "She is obviously making a huge difference to him. Im [sic] glad that they found love."

"So glad to see Rob doing so well. It goes to show if you surround yourself with positive uplifting people, the better off you are," tonyamt52 wrote.

More: Rob Kardashian's new relationship is helping him reconnect with Kris Jenner

And nyahbinghidoll also weighed in on Kardashian's happiness, writing, "Sooo amazing to see him smile! He deserves to be happy ! She is amazing too."

It's been a great year for Kardashian thus far: He appears to have found a woman who genuinely cares for him, and he's taking big steps to improve his health and shed the excess pounds. He has also become less of a social recluse and has been spotted enjoying time out and about on several occasions, as well as a romantic getaway to Jamaica.

Happy birthday, Rob.

Before you go, check out our slideshow below.

Rob Kardashian and Blac Chyna unleash their inner child with awesome birthday adventure

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