Kim Kardashian Works Her Itty Bitty White Bikini

It's not all play for Kim Kardashian while on "vacation" in Miami. The reality star kept her business hat on as she prepared for a photo shoot yesterday in her itty bitty white bikini! She was most likely gearing up for photos for her QuickTrim ad campaign. The diet pills have helped Kim keep her much-talked about assets in fantastic shape.

OK! NEWS: AUNT KIM SHOWS HER NEPHEW MASON HOW TO SHOP

Kim's also been spending a lot of time in Miami with the new man in her life — nephew Mason Disick!

She took Mason shopping earlier in the week and for some fun on the beach.

Kim also spent some time with sister Kendall and Kylie Jenner, relaxing by the pool!

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