The Modern Family star showed off her amazing figure in the image, which she shared with her 2.8 million followers last night.
The 19-year-old is currently sunning it up on holiday in Bora Bora, and she looked to be making full use of her time off in the picture.
Surrounded by beautiful landscape, Ariel poses on the deck of a boat in the snap, and looks straight ahead to the sea. She added the caption: “Y’all there are stingrays in the water.”
It’s the second racy pic the actress has shared from her holiday recently, after she posted another steamy shot just a few days ago.
Joined by a friend, Ariel posed for the even cheekier snap earlier this week, adding the caption: “Your favourite wives in paradise.”
Judging by her Instagram feed, Ariel is currently taking in the sun with traveling companions Jack Griffo and Nolan Gould, who plays her younger brother Luke on Modern Family.
She’s fast becoming one of the hottest stars on Instagram – let’s hope there’s plenty more to come in 2017.