The singer decided to slip into a sexy swimsuit from "Basketball Wives" star Draya Michele's Mint line on Thursday afternoon to take some ridiculously hot photos in her pool, showing off her enviable physique and a whole lotta skin.
The revealing one-piece brought some serious attention to her cleavage and sideboob, as the 22-year-old posed for photographer Jake Bailey for a "Backyard session" in the water.
Justin Bieber's ex looks incredible in the photos ... but it doesn't look like he's drowning in regret over their split.
A few hours after Gomez posted her sexy snaps, Justin followed up with a swimsuit pic of his own ... where he's joined by Kendall Jenner and an adorable puppy.
In one shot, Bieber has his hands on Jenner's waist as she sports a white and yellow bikini. In the other, Justin sits shirtless with the cute pooch.
It's unclear what these photos are for. It's possible they're leftover shots from their recent Vogue shoot, or it's just a couple of friends hanging out.
What do you think is going on here? And how GREAT does Selena look? Sound off below!