Jessica Simpson ushered in her 35th birthday with a luxurious two-week vacation in St. Bart’s. The fashion designer and singer celebrated with friends and family. The blonde beauty got into the spirit of the destination with some water-skiing.

About 20 friends and family, including husband Eric Johnson and celeb pals Odette and Dave Annable, were flown via private jet to the Caribbean island, kicking off the 14-day bash on July 6. A source told Us Weekly that Jess’s mother, Tina, also brought along two of her best friends. The group hired a boat for a few days to cruise and go snorkeling.

On Friday, Simpson’s birthday, there was a costume party, the first source revealed. “Everyone wore giant feather headdresses and painted their faces. They partied all night long and slept for most of the day,” the insider added.

Johnson and a group of his friends were even spotted with their costumes from the previous night, the next day. They spent the day at Nikki Beach on St. Bart’s on Sunday, and had brunch with music. In the night, the group celebrated at a restaurant featuring a burlesque show.

The singer shared a picture on Instagram clad in a white one-piece swimsuit on Tuesday. She pulled off the look with platform sandals, and cat eye sunglasses in yellow mirrored lens. Simpson flaunted her long legs and toned arms in the photograph apart from treating her fans to an eyeful of her famous cleavage. The picture had a Pamela Anderson vibe.

The singer shared a opted for an all-black getup . “I love these vacation babes,” she wrote on an equally toned-looking snap of herself with friends Lauren Harrison and Stephenie Pearson.

Simpson credited celebrity trainer Harley Pasternak for her toned body. Earlier, Pasternak asked the girls to work on their lower body at least twice a week to get legs like Simpson’s. The trainer recommended hamstring curls and both walking and skater lunges for toned pins.