Kendall Jenner Bikinis and Jet Skis it Up in Mexico with Pia Mia and Hailey Baldwin

Inside Kylie and Kendall Jenner's Surprise Graduation Party
Kylie Jenner, class of 2015, and Kendall Jenner, class of 2014...

Kendall Jenner looked like she was having some fun and whipped around in a jet ski during her sister Kylie’s birthday week in Mexico yesterday (Aug. 13, 2015).

Kendall caught some air while riding tandem with a girlfriend on the back from an incoming wave. The model looked cute wearing an emerald green bikini and cowgirl straw hat.

Earlier in the day Kendall lounged around in her teeny bikini while wearing an Endless Summer ChaCha Crop Top with girlfriend Hailey Baldwin and Pia Mia at their beach house pool and lounge chairs. Kylie and Tyga appeared to be keeping to themselves for some quality couples time.

The reality star posted this gorgeous pic of herself enjoying paradise:

☔️

A photo posted by Kendall Jenner (@kendalljenner) on

Kylie enjoyed a huge birthday bash earlier this week that was attended by the majority of the Kardashians and celebrities such as Austin Mahone, Gigi Hadid, Zayn Malik and more.

Check out all the pics of Kendall Jenner and her gal pals in the gallery above.