Check out the images, they were cropped with photoshop. If you open the first image in photoshop you can see a thumbnail of the original uncropped photo. Lets just say that theres a little bit more skin revealed than what she intended to show ;)
I call BS, Guinness rules dictate that an official from Guinness must be present at attempts to break a Guinness World Record. There was none present. And if you bother to contact Guinness you will find that they have no record of this "record". Of course it is Slate, who needs facts when a deadline is due.