Do you think you can guess how a babe keeps her muff based on her how she dresses? Does your co-worker's carpet match the drapes? Is that geeky girl in your class secretly a sex kitten who shaves herself bald?
I think, in addition to the amateur porn aspect, what fascinates me about this is the dichotomy of the public image and pron image.
Really NSFW if you click the links.