I've been doing this for years...right click on the page to view the source, or try to open the image in a new window to get the full image path, then browse the directory of images.  

More often than not, the image directory is wide open.  I often find tons of hot photos this way.  Usually works best on sites built with wordpress as the image directory is open by default.  Many times a provider will only show like 5-10 images on her page, but then they have a treasure trove of hot pics hidden...maybe some that used to be displayed on the site that she took down, or maybe some that she decided to never make visible.  

In any case, I love seeing these photos.  What's my point? I often wonder why providers only choose to display a few images when they have so many other hot pics.  I'm not talking about hidden pics that may show their face or are too graphic, or something they decided gave away their anonymity...just various other hot poses in different outfits. It's funny because sometimes I'll find these gems and then wonder why the photos they are showing are mediocre