Kim Kardashian showed off her famous curves in a tiny black bikini - which almost risked a malfunction as her cleavage was on full display.The Keeping Up With the Kardashians star took to Instagram to show off her figure while enjoying a day with her children.The reality star stunned her fans in the small black number and posted in a picturesque crystal-clear lagoon.Kim, 40, shared several snaps from the outing as she swam and played with pals.The mum-of-four's first photo saw her pushing out her breasts as her hands were resting behind her head, with her body wet from the water.The clear water was rippling behind her and her hourglass body sparkled near the water.Her tiny black bikini, which featured high-waisted briefs to match, flaunted.
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