The Kardashians Celebrate Rob’s Very Vegas Birthday (PHOTOS)

When you’re a Kardashian, there’s only one way to properly celebrate your birthday: Vegas, baby!

Rob Kardashian, the only brother among a brood of beautys such as Kourtney, Kim and Khloe, turned 24 on March 17 and celebrated the night partying away at Jet night club in The Mirage hotel and casino in Sin City.

While two of his sisters were there, one was noticeably absent:Despite embarrassing him big time on his actual birthday, Kim, 30, and Khloe, 26, both made it out, but it looks like (at least per the photogs views) Kourtney, 31, wasn’t there. Sometimes being a mom means missing out on fun Vegas b-days! But Mason is so cute, we’re sure she didn’t mind.

Check out all the photos in the gallery and you can wish Rob a happy (belated) birthday on our Facebook page or Twitter!