The sisters share old pictures on Instagram

Khloé Kardashian has shared a cheeky flashback photo with Instagram fans.

The reality star flaunts her curves in sexy black swimwear as she poses with sisters Kim and Kourtney in the saucy snap.

#FBF sisters ,’ Khloé, 30, captioned the picture.

Kim, 33, sticks her bum out as Khloé holds on to her waist and Kourtney looks on in the shot.

Meanwhile pregnantKourtney, 35, posted another old picture of the girls showing them wearing matching denim jeans and white shirts.

Flashback Saturday. @kardashiankollection denim ad. ,’ Kourtney wrote.

Fans think the siblings look very pretty in both snaps.

Stunning,’ one commented.

Another added: The 3 queens.’

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Anna Francis