Business up top, party in the back.

Sydney Sweeney shared new photos from a lakeside vacation on Instagram Friday, modeling a sleek black-and-white Jonesea wetsuit ($430) with a cheeky cut in the saucy snaps.

“i think they call this a thirst trap,” the “Euphoria” star, 26, captioned her carousel of photos.

Sydney Sweeney showed off her bottom in a black-and-white wetsuit on Instagram Friday.Sydney Sweeney / Instagram

Sweeney wore her long-sleeved suit partially unzipped in Friday’s post.Sydney Sweeney / Instagram

She showed off her look from the back in another snapshot Friday.Sydney Sweeney / Instagram

The star lounged on a boat with her glam squad in her new Instagram post.Sydney Sweeney / InstagramExplore More

The “Anyone But You” actress wore her blond hair down in beachy waves as she posed on a boat with members of her glam squad, including makeup artist Melissa Hernandez and hairstylist Glen “Coco” Oropeza.

Sweeney finished her laid-back look with black sunglasses and white water shoes.

Hernandez, meanwhile, wore the same floral patchwork Cynthia Rowley wetsuit Sweeney sported in other snaps from the group’s trip.

What do you think? Post a comment.

Sweeney wore white shoes with her wetsuit in Friday’s Instagram post.Sydney Sweeney / Instagram

She also showed off a floral patchwork Cynthia Rowley wetsuit in a recent lakeside Instagram pic.Sydney Sweeney / Instagram

Sweeney’s vacationing with her glam squad.sydney_sweeney/Instagram

Fans went wild for the cheeky post, like one who wrote, “Sometimes all you can do is say hummina hummina hummina,” and another who quipped, “just when I thought life couldn’t get any better.”

The actress has been spending plenty of time on the water since purchasing a $13.5 million oceanfront mansion near Key West, Fla., in June.

She’s been spotted swimming in her pool and riding a banana boat at the luxe property, which features an aquarium and a 520-bottle wine room.

Keep soaking up summer, Syd.