Rebecca Donaldson wowed Instagram fans with a new photo.

She uploaded a new bikini update to her Instagram Story.

Rebecca wore a black two-piece with underwire cups and thick straps.

The bottoms boasted high sides with a low-cut front.

Rebecca soaked up some sun abroad a yacht.

She posed by kneeling on the lounge chair and looking straight into the camera.

Rebecca’s background showed tall buildings and the sea, which looked like Miami.

It came as no surprise because her man, Scott Disick, was also in Florida driving a boat, as seen on his latest Instagram share.

Scott and Rebecca publicly shared their relationship to the world when they stepped out at the red carpet together during “The Kardashians” premiere earlier this month.