Kylie and Kendall Jenner go head to head in the Instagram bikini picture battle

KENDALL and Kylie Jenner have officially landed in St. Barts along with the rest of the Kardashian clan to film the latest season of Keeping Up With The Kardashians.

And with beautiful beaches, a stunning hotel room and all that sunshine on their doorstep, this means only one thing – an influx of bikini selfies.

To kick things off, Kendall and Kylie have gone straight for it with a mirror shot as they flaunt those impeccable curves.

Posted by Tyga's lovely lady, the 18 year old captioned the photo: "We woke up in paradise too."

And this isn't the first time the two Jenner sisters have gone head to head with the flesh on social media either.

It was only a few weeks ago that the model sibling had the world gawping when she revealed a seriously hot poolside photo of her in an orange bikini.

Flaunting her super toned body in a skimpy two-piece, Caitlyn Jenner's daughter looked effortlessly gorgeous as she attempted to pull her necklace to her bellybutton. Why? Your guess is as good as ours.

However, with everyone in a fizz over the catwalk star's body, Kylie decided to also jump on the Instagram bandwagon causing just as much of a stir.

Capturing a selfie, the youngest sister of Kim Kardashian showed off all her curves in a very revealing black swimsuit.

With all her cleavage on show and with a cut out all the way down to her navel, Kylie certainly stole her big sis' thunder.

And this isn't the only time the pair have gone head to head in the social media bikini battle as both Kendall and Kylie like to get people's attention in a skimpy two piece on a regular basis.

On holiday in Dubai, Cara Delevingne's pal snapped a quick selfie as she admired her abs (and we don't blame her one bit) in a mirror.

The sisters recently wore the same swimsuit while tanning in their back garden [Kendall Jenner/Instagram]

Also doing the same was the beauty lover back home as she wore a halter neck bikini complete with string bottoms.

And when the pair aren't posing solo, they're pulling their best moves together in the SAME swimsuit to see who really did wear it best.

Looks like Kimmy K has taught them well.