is seen in a black string bikini on the beach

is seen in a black string bikini on the beach
Kim Kardashian is seen in a black string bikini on the beach

Kim Kardashian was seen in a black string bikini while on a white sand beach in two new Instagram photos shared on Monday.

The mother-of-four was in top shape as she was photographed from the front and the back as the crystal blue waters could be seen behind her.

The makeup mogul, 40, had a bit of fun with her caption as she wrote: 'Resting beach face.' 

Stunning in the sun: Kim Kardashian was seen in a black string bikini while on a white sand beach in two new Instagram photos shared on Monday

Stunning in the sun: Kim Kardashian was seen in a black string bikini while on a white sand beach in two new Instagram photos shared on Monday

Nailed it: The Vogue cover girl's nails were short and a pale pink color, which she has said is her favorite look

Nailed it: The Vogue cover girl's nails were short and a pale pink color, which she has said is her favorite look

The suit left little to the imagination as it gave a good view of the reality TV star's cleavage and her flat tummy.

The briefs rode high on her hips and tied on the sides as they had a thong back.

The Selfish author pulled her black hair back in a low bun and went with little makeup on and no jewelry; she wears very little bling since her Paris robbery.

The Vogue cover girl's nails were short and a pale pink color, which she has said is her favorite look.

Now for another view: The mother-of-four was in top shape as she was photographed from the front and the back as the crystal blue waters could be seen on the horizon

Now for another view: The mother-of-four was in top shape as she was photographed from the front and the back as the crystal blue waters could be seen on the horizon

Natural wonder: The Selfish author pulled her black hair back in a low bun and went with little makeup on and no jewelry; she wears very little bling since her Paris robbery

Natural wonder: The Selfish author pulled her black hair back in a low bun and went with little makeup on and no jewelry; she wears very little bling since her Paris robbery

It is not known if the images are older or if she is on a new tropical vacation.

Kim also shared some behind the scenes images from when she voiced the new animated movie Paw Patrol.

The TV vet will voice the character of 'posh pooch' Delores - a blue-eyed white dog with a pink collar - in the Paw Patrol film which comes out on August 20 from Paramount.

Her costars are Jimmy Kimmel and Dax Shepard as well as Randall Park.

An actress too: Kim also shared some behind the scenes images from when she voiced the new animated movie Paw Patrol. The TV vet will voice the character of Delores - a white dog with a pink collar - in the Paw Patrol film which comes out on August 20 from Paramount

An actress too: Kim also shared some behind the scenes images from when she voiced the new animated movie Paw Patrol. The TV vet will voice the character of Delores - a white dog with a pink collar - in the Paw Patrol film which comes out on August 20 from Paramount

For the West tykes: Earlier this year Kim told People she took the role to please her four kids: North, Saint, Chicago and Psalm

For the West tykes: Earlier this year Kim told People she took the role to please her four kids: North, Saint, Chicago and Psalm

Too cute! The synopsis: When their biggest rival, Humdinger, starts wreaking havoc as the mayor of Adventure City, Ryder and everyone's favorite heroic pups kick into high gear to face the challenge. Armed with exciting new gadgets and gear, the PAW Patrol joins forces with a savvy dachshund to save the citizens of Adventure City

Too cute! The synopsis: When their biggest rival, Humdinger, starts wreaking havoc as the mayor of Adventure City, Ryder and everyone's favorite heroic pups kick into high gear to face the challenge. Armed with exciting new gadgets and gear, the PAW Patrol joins forces with a savvy dachshund to save the citizens of Adventure City

The synopsis: When their biggest rival, Humdinger, starts wreaking havoc as the mayor of Adventure City, Ryder and everyone's favorite heroic pups kick into high gear to face the challenge. Armed with exciting new gadgets and gear, the PAW Patrol joins forces with a

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