P is for Panty Fetish
Some fetishes, for some unknown reason, seem to be hidden more than most.
A lot of men are aroused by the scent of a female, This scent is obviously most notable in the groin area. These panties when wet are obviously covered in the ladies scent and sexual pheramones. These panties are often traded in the back of mens magazines, or more recently, the internet. The more information, or the dirtier the knickers the more money they fetch. In Japan esepcially there is a huge market for such items, to such an extent there are vending machines on the street that will dispense pre soiled knickers. That is not to say there are not lots of other similar fetishists in other countries that enjoy this fetish.