Kim KardashianCrazy Curves in Teeny Bikini!!!Bday Filming With Family

Kim Kardashian was grinding on her birthday, but she didn’t forget to turn up the glam factor with a super sexy outfit for the work occasion.

The reality queen turned heads on her big 4-4 Monday, rocking her eye-popping curves in a tiny silver bikini on the set of a top-secret filming project in Malibu — making sure to steal the spotlight from her family, who were also there as the cameras rolled.

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Kim looked absolutely stunning, raising temperatures in a sarong cover-up that wasn’t doing much to obscure that iconic bum.

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Billionaire Kim was in her element, soaking up the autumn sun and radiating happiness as she filmed alongside her momager Kris Jenner and her man, Corey Gamble.

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Cameras were also rolling on Kim’s sisters Kourtney, Khloe and Kendall — as well as some of the Kardashian kids, including Kim’s children Saint and Chicago — making it one heck of a family affair.

Of course, for the Kardashian crew, being in front of the camera is like breathing! So you know workaholic Kim wasn’t about to kick back and take a day off on her birthday — she’s all about that hustle, even while celebrating. Happy birthday Kim!!!