EXCLUSIVE: Kylie Jenner and Tyga Stay at 'Girls Gone Wild' House During Mexico Vacation -- See the Pics

Kylie Jenner is kicking off her first year as a legal adult with a trip to Mexico alongside her reported boyfriend, Tyga.

Kylie opened up about her b-day plans, telling ET in July, "I think I'm gonna go on a trip with my friends." On Monday, the Keeping Up With the Kardashians star kept her word by taking her friends and Tyga on a private jet to Punta Mita.

WATCH: Kylie Jenner Posts NSFW Photo Shoot on Her 18th Birthday

Earlier that day, she posted a photo of her brand-new white Ferrari 458 Spider -- which she received as a birthday present from Tyga -- parked on a private runway. Kylie captioned the pic simply, "GONE."

Kylie, Tyga and her close friends, Stassi, Jordyn, Justine Skye, and Pia Mia, were seen deplaning the private jet at 7 p.m. local time. They then traveled by private car to Joe Francis' house in Casa Aramara, a private, seaside estate where the group is staying.

Built by Francis, the property is available for rent to elite clientele and has a private chef, a masseuse, butlers and access to world class spas. It's the same location where Kim and Kanye West celebrated their honeymoon.

Meanwhile, Kendall Jenner and Hailey Baldwin are expected to arrive on Wednesday.

Kylie and Tyga wasted no time enjoying the local sun. The two were spotted riding a WaveRunner in the clear blue water of Banderas Bay.

While the reported couple is relaxing south of the border for an extended birthday getaway, it hasn’t stopped Kylie from posting pics to Instagram and Snapchat during the trip.

WATCH: Kylie Jenner Reveals Her 18th Birthday Plans!

It seems that the birthday girl doesn't care about courting controversy either. On Tuesday, she posted a Snapchat video with Pia Mia showing off her new cornrows.

The new 'do comes weeks after Kylie got into a heated online feud with Hunger Games actress Amandla Stenberg, who slammed Kylie for what she felt was offensive cultural appropriation.

WATCH: Khloe Kardashian Defends Kylie Jenner and Tyga's Relationship: I Was Probably F**king Guys in Their 20s at 16

Kylie's trip to Mexico comes after days of partying and revelry celebrating her milestone birthday. Check out the video below for a look at what Kylie and her reality star sisters got up to over the weekend.

Kylie Jenner and Tyga Are Careful About PDA While Partying at Joe Francis' Mexico Mansion

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Photo Album: Kardashian-Jenner Family Vacation