I see You… You horny slut!
We are human, and humans inexplicably like to feel like they are being bad, naughty and going against the grain. This is why Voyeur Porn is so popular and why Voyeur Sex Videos are hot commodities on the Sextubes and free porn sites. Looking in through a window and catching your neighbor getting her ass fucked as she squeals like the whore you always knew she was is great, but seeing this XXX action and her having no idea about it, well, that makes it that much hotter! The same thing holds true with voyeur sex pics like this one. Honestly, how awesome is it; you know your cock is hard!
