Sydney Sweeney Arches Back In Stringy Underwater Bikini

Sydney Sweeney is dropping jaws with her latest social media share while rocking a bikini. The Euphoria actress posted to Instagram earlier this week, showing off her bombshell figure while going all mermaid during an underwater shoot.

Flaunting her curves in a stringy bikini with a cheeky thong finish, Sydney arched her back and floated around from a pool, offering both a still photo and a video as fans left her over 3 million likes. Sydney offered nothing but a wave emoji in her caption, quickly getting called the "most magical mermaid" by mogul Kylie Jenner's photographer, Amber Asaly. The Hollywood sensation is followed by 24 million on IG.

Scroll for the photos. Folding one leg and pointing her toes slightly, Sydney opened her duo of slides with a dramatic underwater pose, stripping down to a barely-there bikini that showcased her toned legs and peachy backside.

Displaying her enviable waistline while stretching her arms on either side of her, The White Lotus favorite arched her back, also throwing her head back a little as she wore her light locks down.

Modeling a white two-piece with a halterneck, triangle top, and chic black piping, Sydney kept her bottoms skimpy, rocking a cheeky thong as she flailed around a mosaic-tiled pool with a see-through panel. Fans also saw pouring sunlight from above, and there was more to come.

In a swipe right, Sydney once again highlighted her world-famous physique, this time slowly lying down on the pool's floor as she was filmed in slow motion. A mermaid emoji quickly came in from socialite Paris Hilton, with a popular reply also reading: "How can you be so hot underwater???"

Sydney Sweeney proved she didn't need a bikini to make a headline in this December 2024 snap. Wrapping up last year with a promo post for the Miu Miu designer she's signed to, she threw back her head in a racy open jacket and jeans combo, wearing nothing beneath her jacket while flashing her abs and bare cleavage.

"I think I first started learning about Miu Miu once I started going to red carpets and being introduced to fashion. There was always that phrase, ‘Oh, she’s a Miu Miu girl,’ and I was always fascinated by the enigma of what that represented and meant. The girls always looked beautifully effortless but incredible at the same time. And I was like, ‘Oh my God, I hope I can be a Miu Miu girl one day!’" she told i-D.

Sydney Sweeney is also an ambassador for Bai drinks, Armani Beauty, and Laneige Beauty. Ditching the promo agenda in another photo, she got super cheeky from her $13.5 million Florida mansion, showing off her curves in a cheeky swimsuit while jokingly calling her Instagram post a "thirst trap."