Selena Gomez Flashes Underboob in Skimpy Pink Bikini in Mexico: Photos

Selena Gomez flashed underboob in a skimpy pink bikini while vacationing in Puerto Vallarta, Mexico this week -- see the sexy photos! Credit: XPOS/AKM-GSI

Everything, including hotness, comes "Naturally" for this star! Selena Gomez sizzled in a teeny pink bikini in Puerto Vallarta, Mexico, while playing in the water on Tuesday, April 14.

During her fun excursion with friends, the multi-hyphenate got rowdy in the water and flashed some underboob in her sexy (and very skimpy) bikini top. Gomez, 22, beamed in the ocean after going for a refreshing swim. See more of Selena's sexy bikini pics. 

The former Disney star also brought a lime green and blue inflatable tube into the warm waters as she bonded with pals on vacation. Gomez's tiny two-piece — which featured large cutouts at her waist — nearly fell off at one point because she was having so much fun.

From the back, Gomez's voluptuous figure was on full display in her form-fitting bikini bottoms as she walked back to her resort.

The actress also shared an Instagram from her Mexican getaway on Wednesday, April 15, where she shot footage of the scene inside her vacation home at the Casa Aramara in Punta Mita. "Girly moments at the Casa," Gomez captioned the panoramic video, which revealed an elaborate dinner setting including a massive Hookah serving as the centerpiece of their table.

Girly moments at the Casa

A video posted by Selena Gomez (@selenagomez) on Apr 14, 2015 at 10:58pm PDT

The Wizards of Waverly Place alum opened up to Radio Disney last month about focusing on her music career at the moment, especially with the guidance of her rumored boyfriend Zedd.

"He’s very sweet and funny," she gushed of her "I Want You To Know" collaborator. "I respect his vision, because he has a way of knowing how important his role is as an EDM artist... He doesn’t spend most of his time traveling the word DJing. He really spent so much time on this record. He wanted everything — from the lyrical content, to who sang it, and how they sang it. He’s great, and very talented."

Her famous ex Justin Bieber, meanwhile, spent this past weekend partying in Indio, Calif., at Coachella with other celebs like Kendall Jenner, Gigi Hadid, and more.