Her name is Cleo.(The shoot was taken in Faringham Woods near London, notorious for kinky outdoor-sex parties - something similar like the Bois de Boulogne in Paris) She is a British home-amateur getting kicks from outdoor-flashing, outdoor-sex etc etc. In the UK all this is called 'dogging'.
Some background-info on her:
http://www.uk-dogging-locations-information.comscroll down about halfway and you'll find the info on her.
Happy hunting (or venture on a trip to Faringham....)