There must be something in the water, top left picture her hands are fine, bottom right they become flippers.

...I'm pretty sure these are all different women.

The only thing different about them is they're hairstyle and breast size. I agree with Bomber though, there's something in the water. If you read in a circle starting at the top-right and ending at the bottom right, her breasts have shrunk too. For the sake of your breasts, get out of the water!