Traditionally, fetish refers to sexual interest in inanimate objects, like a shoe fetish or underwear fetish or leather fetish; fixation refers to unusual emphasis placed on body parts other than genitalia, such as a foot fixation, tit fixation, belly-button fixation. If either is taken to extremes, such that a person is preoccupied, or especially if that person cannot function sexually without the fetish or fixation, then it becomes obsession.Matthew said:This doesn't answer your broader question, which I think is interesting.
But why would homosexuality be considered a fetish if heterosexuality is not?
Hey, Freddie, do you remember the "Toadsuck Toe Sucker" from back (I think) in the mid 1980's? He assaulted several women, usually hanging out in a large shoe store posing as a salesman, then fondling the women. Once, as I recall, he tackled a woman in a mall parking deck, forcibly removed her shoe, and began to suck her toes... that's when fetish becomes obsession...