Yes, the whole subject of fetishes is pretty incoherent. Some so-called "fetishes" have even reached the level of psychiatric disorders. For example, homosexuality was, until relatively recently (
1973), an official "disorder" in the United States.
The
Merck Manual defines it like this:
"Fetishism is use of an inanimate object (the fetish) as the preferred method of producing sexual excitement. However, in common parlance, the word is often used to describe particular sexual interests, such as sexual role-playing, preference for certain physical characteristics, and preferred sexual activities or objects.
Fetishistic disorder refers to recurrent, intense sexual arousal from use of an inanimate object or from a very specific focus on a nongenital body part (or parts) that causes significant distress or functional impairment."
In reality, humans are so fundamentally sexual that just about anything turns them on. While researching "fetishes" I've come across so many I can't even list them all, but some include: bug squashing in high heels, furries, tickling, biting, pain, coprophagia, foot, elbow, underknee, neck, eyebrow, giantism, smallism, piercing, suffocation, shaving, cosplay, bondage, bestiality, branding, blood-letting, videos, pictures, feather boas... the list goes on and on and on...
Humans can imprint sexual desires on to just about anything and it's just a part of human sexual desire. Some "fetishes" can be harmful, of course, such as non-consensual actions or anything involving minors. Those are absolutely no good. So I would delineate that as the boundary. As long as an action takes place between two consenting adults, and "
consenting" and "
adults" are
very key words, it's pretty fair game. Bestiality is a tricky one, because can animals consent or not consent? I would argue that they can't, but I won't wrangle down that vortex right now. But whether to call something a "fetish," I don't know, it seems like a personal or a cultural preference. The word is so inconsistently used as to be almost meaningless at this point. Opinions and definitions will differ country to country and culture to culture and even person to person. But human sexuality, regardless, seems pretty consistent in its vastness and indefinability.