all fours

Anyone know...?

This is a fetish I'm shocked not to have found elsewhere, specifically, girls on all fours or face down-ass up but NOT nude, at least that is wearing a thong, bikini, underwear, or short shorts. No jeans, tights, or dresses. Preferably brunette. eye contact great too. examples

Hi guys, This picture is pretty well spread on the web, but who's the girl? If you know where the scene comes from too, I'd appreciate! :)

who is she? http://24.media.tumblr.com/10880b4475592f8d781cdad28e1e1b93/tumblr_mxop3vhcXQ1t7x5sgo1_250.gif

as the title said i love this type of pose any links are appreciated,here's an example.