>>39247897Perhaps it's the curves of an attractive foot with appeals to our natural attraction toward curviness in bodies, perhaps the high amount of sweat glands in the foot appeals to us with a higher density of pheromones, perhaps it's the allure of a body part which is normally quite "hidden" from view. Perhaps you're just so gooned up from jerking off 5 times a day that any part of a woman will turn you on. Nobody knows for sure, really.
Despite what people will tell you about certain "crossed wires" (not proven), there isn't really a scientific reason known for it, just spitballed theories.