The above photo belongs to a professional porn model, named "Yungelita" (real name: Emma Harvey, who is a "close friend" of Melanie Melendez). Unfortunately, there seems to be some credible debate that some of Ms. Harvey's photos are from when she was still under the age of 18 years old. Her Tumblr account is currently deactivated as well, although her handle still remains for branding purposes.
A "mature" tag wouldn't suffice in this case... and this is the first photo I had to do research on. I don't want to do any more digging, because honestly I don't want to know what else pandaispanda dragged out of the gutter.
If someone would like the honors, please do so.