This may be redundant.
Many seem to enjoy the BP hunt for the lastest and greatest - so be it.
I would strongly suggest using: http://www.tineye.com/
as a preliminiary screen when investigating pics of unknown ladies.
Tinyeye is very simple and easy, just paste the pic or url and Tinyeye will tell you where else the pic can be found on the web.
You might be unpleasantly supprised.