She finished off her look with yellow sunglasses and swept back hair.
Bella posed for the saucy snap while on holiday in Jamaica.
Fans were loving the pic, with more than 692,000 giving it a like.
One wrote: “Drop dead gorgeous.”
The star appeared to be in her birthday suit at first.
However, in actual fact, she was wearing a nude swimsuit.
That would have been an eye-opening sight in the photo album.