Kendall Jenner keeps it simple in black while sister Kylie goes dotty for spots as pair model Kardashian Khaos bikinis

Kendall Jenner keeps it simple in black while sister Kylie goes dotty for spots as pair model Kardashian Khaos bikinis

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UPDATED:

12:03 GMT, 4 July 2012

They might only be 14 and 16 years old but Kendall and Kylie Jenner are already causing waves in the modelling world.

The sisters displayed their modelling potential last week as they sported different looks from the Kardashian Khaos bikini line at The Mirage hotel in Las Vegas.

While Kendall, 16, kept things simple in a black two-piece, 14-year-old Kylie opted for a more eye-catching look in a black and white polkadot bikini with a hot pink trim.

Modelling stars: Kendall Jenner, 16, wore a simple black Kardashian Khaos bikini while her 14-year-old sister Kylie opted for a black and white polkadot two-piece

Modelling stars: Kendall Jenner, 16, wore a simple black Kardashian Khaos bikini while her 14-year-old sister Kylie opted for a black and white polkadot two-piece

Stars of the future: Both Kendall and Kylie, who modelled the swimwear at The Mirage Hotel in Las Vegas last week, are keen to make it in the modelling industry

Stars of the future: Both Kendall and Kylie, who modelled the swimwear at The Mirage Hotel in Las Vegas last week, are keen to make it in the modelling industry

Stars of the future: Both Kendall and Kylie, who modelled the swimwear at The Mirage Hotel in Las Vegas last week, are keen to make it in the modelling industry

And as Kendall, who has more
experience so far in the modelling world, tied her hair back for the
shoot, Kylie left her long brunette hair loose for the photos.

Despite the fact that Kendall and
Kylie are both hoping to hit the big time as models, they are also
pursuing other ventures and recently announced that they are writing a
book together.

The girls are working with co-writer Maya Sloane on a
science-fiction story 'set 200 years in the future' that they hope to
release next summer.

They've got the poses! Both girls appeared to have taken posing tips from their big half-sisters, Kourtney, Kim and Khloe Kardashian

They've got the poses! Both girls appeared to have taken posing tips from their big half-sisters, Kourtney, Kim and Khloe Kardashian

They've got the poses! Both girls appeared to have taken posing tips from their big half-sisters, Kourtney, Kim and Khloe Kardashian

Kylie said: 'I think we will definitely get it done with how fast [the process] is going.'

And Kendall added to E! News: 'We want to do something so different, something that we really love.'

The pair first brainstormed with
their manager Kris Jenner on the book and are now working with Maya on
the first in a possible series for publisher Karen Hunter at Simon &
Schuster.

The book will be aimed at young adults and will feature two sisters.

Lithe: Kendall showed off her athletic figure in denim shorts and a cutaway vest top as she headed out in Calabasas yesterday

Lithe: Kendall showed off her athletic figure in denim shorts and a cutaway vest top as she headed out in Calabasas yesterday

Lithe: Kendall showed off her athletic figure in denim shorts and a cutaway vest top as she headed out in Calabasas yesterday