the reason for this fetish is because girls leave behind
chemical trails called phermores on whatever they wear or
touch or breathe out.
Each phermore is unique like your fingerprint, so therefore,
different men will be attracted to different items a girl owns,
touch or breath out.
Sometimes, it can be the odour (not body odour, mind you) they
emanate. When men breath it in, they become blur for a while but
feel slightly aroused. If prolonged, it can lead to whatever the
parties involved want.....
no wonder i love to play with my wife hair so much