And this week saw her top the lot as she stripped down to a barely-there purple two-piece.

Showing off incredible abs and her tiny waist, the star is seen paddling in the shallow waters, still flaunting those controversial cornrows on the mini break.

She’s later seen joining a friend on sun loungers, once again ensuring she shows off her curves to the cameras.

And just hours later, it was change time again as Kylie swapped into a tiny pink swimsuit – owned by none other than her mum Kris Jenner.

While most of us would cringe at the very thought of wearing one of our mum’s old swimsuits, Kylie has managed to look like a complete supermodel in one of Kris’.

The momager caught sight of her daughter wearing her vintage Body Glove swimsuit during her Mexican break, and couldn’t wait to share it with the world.

Oh, and add a pH๏to of her wearing it a few years back too.

This one shows off the youngster’s legs as it rides up on both sides, barely covering her modesty.

Kylie, still showing off her new cornrows after her birthday bash, proved once and for all she’s all grown up in a series of snaps as she continues to soak up the sun.

It comes after the star was spotted just hours before in a skimpy purple two-piece, and she’s also made the most of the private boats, endless sun, and pH๏tographers to show off her figure in a white biκini too.

Kylie’s 18th birthday was a glitzy and incredible occasion – and it’s not surprising she’s still on cloud nine.

The reality TV hit the milestone on Monday, and she’s already decided that August has been the “best month ever”, which is lovely.

She also shared some sound advice with her fans, writing about the importance of friendship as she took to Twitter to voice her happiness.

She tweeted: “This has been the best month ever!

“The most important thing I’ve learned this year is to surround urself w as many good friends as u can! (sic)”