Kylie Jenner Holds Tight to Boyfriend Tyga on Jet Ski in Mexico

Kylie Jenner wraps her arms around her boyfriend Tyga‘s waist while jet skiing on Tuesday (August 11) in Mexico.

The newly 18-year-old reality star is celebrating her birthday in paradise with a lot of her friends.

“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!” Kylie wrote on Twitter a couple days later.

“My lil babies,” Kylie captioned an Instagram photo with some of her gal pals, including singer Pia Mia. See it in the gallery below!