Kylie Jenners Birthday

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Kylie Jenner's birthday celebration looks like a vacation she won't soon forget.

The 19-year-old spent a day out on the water and by the ocean with her boyfriend Tyga and a group of her closest gal pals.

Bella Hadid and Hailey Bieber were joined by the birthday girl's sister Kendall Jenner as well as several of Kylie's friends since early childhood, and by the looks of things on social media, everyone seemed to be having the time of their lives.

Bella Hadid, Kylie Jenners Birthday

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Between posing for pics in brightly colored bikinis, taking dips in the water, enjoying the sights from a boat and snapping pics left and right, Kylie clearly had a grand old time during her special day.

"Happy birthday Ky baby, life would be boring without you," Bella wrote alongside a pic of the group hopping off a boat and heading towards the coastline.

A photo posted by King Kylie (@kyliejenner) on

Meanwhile, Kendall posted a video of the pals gathered on the beach at night and surprised Kylie with a gorgeous fireworks display.

In the clip, the eldest of the Jenner girls is overheard shouting, "Happy birthday sister. I love you!"

been the three of us since middle school ??

A photo posted by King Kylie (@kyliejenner) on

And after all of that, it seems as though Kylie's tropical getaway vacation lived up to the hype.

"Time of my life," the lady of the hour wrote next to a sexy shot of her with two pals on a beach. Mission accomplished!

Kylie Jenners Birthday, Tyga

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Watch a brand-new Keeping Up With the Kardashians Sunday, Aug. 21 at 9 p.m., only on E!

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