What better way to celebrate turning 18 than a trip to Mexico. After ringing in the milestone surrounded by family and friends - excluding Rob Kardashian - Kylie Jenner went on a birthday getaway to Mexico with her 25-year-old rapper boyfriend Tyga.

Us Weekly reported that the "Keeping Up With the Kardashians" star and her boyfriend vacationed in Mexico "with no parties planned or family members expected to visit."

On Instagram, Jenner posted a picture of her brand new $320,000 white Ferrari 482 Italia parked next to a private jet, with the caption, "GONE," along with a smile emoji.

Jenner was also accompanied on the trip by her closest friends, including, Stassi, Jordyn singer Justine Skye and Pia Mia. The group is staying at Joe Francis' house in Casa Aramara, which is a private seaside estate.

E! News reported that the house has 12 bedrooms and rents for $12,000 per night and comes with a private chef, butlers and masseuses. Jenner and her group of friends were photographed spending time on a boat soaking in the hot sun. Jenner and Tyga even enjoyed time jet skiing on the water.

"They took the wave runners from the shore out to the Lolo yacht that was anchored near Casa Aramara," a source told E! News. "As they climbed off the WaveRunner, Tyga helped Kylie balance and held her around her waist so that she could get on safely. They climbed aboard with a few friends and headed up to the bow of the boat. They sat on the front as they cruised around and went for a ride. Kylie was laying in between Tyga's legs and resting up against him."

Over the weekend, Jenner kicked off her birthday celebrations with a dinner at Nobu on Aug. 7 and a birthday bash at Bootsy Bellows nightclub with friends and family. A source told Us Weekly that the reality star received special treatment from all of her guest including Tyga. The "Hookah" rapper reportedly spent the night of Jenner's birthday making sure the reality star was happy.

"He was a very doting boyfriend," a source told Us Weekly. "He was taking her photos for her, leading her around the bar. The family was really spoiling Kylie. You can tell she felt like a princess."

She is expected to fly to Montreal on Aug. 16 for a massive birthday bash at Beach Club.