PICTURE EXCLUSIVE: Kendall Jenner slips into a tiny white bikini and takes a huge leap into the sea as Kylie's birthday festivities continue with boat party in Mexico
She spent her first day in Mexico soaking up the sun with pal Pia Mia.
But the party really got started for Kylie Jenner on Wednesday as she was joined by sister Kendall and Hailey Baldwin at the luxurious Punta Mita resort.
The 18-year-old reality star - who celebrated her birthday on Monday - took a boat out with her friends as well as boyfriend Tyga, 25.
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More Mexico fun: Birthday girl Kylie Jenner was joined by sister Kendall, 19, and pals Hailey Baldwin and Pia Mia for a boat party on Wednesday
Also spotted on the watercraft was host Joe Francis, who owns the beautiful oceanside property the group are enjoying this week, as well as his partner Abbey Wilson.
Kylie swapped her purple bandeau bikini from the day before for a white halterneck number with multi-strap detail on the briefs.
She rocked her cornrow hairdo which featured tight braids intertwined with blonde pieces.
Model Kendall, 19, showed off her lithe physique in similar white two-piece with crochet detail.
Bikini babes: The 18-year-old TV star wore a white halterneck bikini for the trip
More the merrier: Kylie's boyfriend Tyga, 25, also joined the group on the jaunt
Host: Joe Francis - who owns the Punta Mita resort - looked on nervously as the party people took it in turns to jump off the boat
Step up your swimwear game in Kendall's crochet bikini
Kylie has really been milking the birthday festivities and why not...you're only 18 once!
She headed for Mexico, chilling on board this stunning yacht with boyfriend Tyga, sister Kendall, bestie Hailey Baldwin and a whole host of other pals.
Of course the birthday girl was looking fab in her Frankie's bikini, but Kendall stole some of the limelight in her stunning crochet bikini. Crochet may be an unusual choice when it comes to swimwear, but seeing it on a model like Kendall has made us realize just how cool it is.
This She Made Me bikini in particular is fab and with the hue being so neutral it's sure to show off your tan on your next holiday. Click right to snap one up for yourself now at Net-a-Porter.
Crochet seems to be becoming more and more popular, so there were a fair few alternatives up for grabs and we've outlined them below (don't say we never do anything for you). Take your pick of the bunch and you'll be queen of the crochet in no time at all!
Ready-set: The siblings held hands as they launched off the roof of the watercraft
Great heights: The duo showed no fear as they launched themselves off the boat at the same time
The siblings leaped off the roof of the boat holding hands and squealing with delight.
Kendall, who spends much of her time in New York with fellow model Hailey, jetted into the tropical location with the daughter of actor Stephen Baldwin earlier on Wednesday.
The 5ft 9in blonde was seen in a grey polka-dot bikini and joined the other ladies as they took it in turns to launch themselves off the roof of the boat.
Girls Gone Wild creator Francis watched on nervously as his guests jumped into the chilly pacific.
The 42-year-old producer regularly hosts the Kardashian clan at his Casa Aramara property- with Kim, Kourtney and Khloe taking advantage of the luxurious 5-star Punta Mita amenities.
Lounging: Kylie couldn't help but smile as she soaked up the party atmosphere
Ahoy there! The ladies pointed out something in the distance open-mouthed
Daredevils: Hailey, 18 and songstress Pia, 18 leaped off with gusto
Diving in: Joe and his girlfriend Abbey watched on as the party girls went for it
Model credentials: Kendall, 19, showcased her figure in a crochet two-piece
Blonde beauty: Joe Francis' partner Abbey Wilson (centre) could be seen showing off her athletic physique in a white crossover bikini
Full-house: The watercraft was packed with swimsuit-clad revellers
The beautiful accommodations boast 12 bedrooms, 13 bathrooms, 5-star executive chefs, a screening room, a gym, two pools and its own private beach.
Newly renovated this year, Casa Aramara is nestled amid acres of lush tropical gardens offering peace and seclusion.
Meanwhile, birthday girl Kylie partied the night away at The Nice Guy in West Hollywood on Sunday night wearing a black mini dress and long blonde wig with black roots.
Party boat: The teen was surrounded by party-goers who perched on the small boat
Curvaceous: Kylie adjusted her bikini bottoms after a refreshing dip in the water
Catered to: The party people had a couple of staff-members on hand to help
Boat babes: Hailey perched up high in a polka dot two-piece while Kylie set her sights on the ocean
Chest on show: Kylie's rapper beau Tyga displayed his many tattoos in some black and white board shorts
Leggy: Kendall stretched it out as she rested her hands on the roof of the cabin
Having a gossip: Kylie chatted with singer pal Pia Mia who wore a lingerie style two-piece
Among the many famous faces at the WeHo celebration were her mother Kris Jenner, 59, and her elder half-sisters Kim, 34, Khloe, 31, and Kourtney, 36 - who followed Kylie's lead in the style department, wearing an array of sleek and chic black dresses.
Also joining the various members of the Kardashians was Kylie's boyfriend Tyga, 25, former One Direction singer Zayn Malik, Gigi Hadid and boyfriend Joe Jonas.
The day after her birthday, the KUWTK star shared an Instagram photo of her brand new Ferrari – gifted to her by her 25-year-old rapper beau – on the tarmac next to a private plane, along with the caption: ‘GONE’.
BFFs: The ladies had a natter while another beach babe stood nearby in a fluorescent pink one-piece
Taking the plunge: The birthday girl slowly lowered herself into the water as her pals looked on
Hepling hand: The teen star helped spray down her pals
Sailing off: It is turning out to be a fun-packed week for the KUWTK star after arriving in Mexico on Tuesday
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