>>48560284There are only a few fetishes I can rationalize.
I believe foot fetishes have something to do with neuroscience and how the brain's sense of feet and genitalia are close together. Pic related would explain a lot, but it could be a discreteded hypothesis.
Breasts were once considered a fetish, but attraction to large breasts is so common it's not considered one. The way cleavage can mimmick buttocks in some way is the theory. Some argue it's not a fetish because human breast sizes don't grow or shrink like with other mammals, so therefore it's considered an evolutionary trait to display nursing capabilities.
Some BDSM is easy to rationalize, at least if it's not femdom. Women's bodies tend to prepare themselves for penetration, consensual or not (which is why sometimes women "enjoy" rape because the body is trying to avoid being damaged by penetration). It's not a far fetch at all to assume women would be into rapeplay since it involves simulated forced sex.
Power dynamics are also important, and BDSM enforces power in an erotic way.
The "Damsel in distress" fetish on DeviantArt could be a "safe" version of rape fetishes due to how common the trope is in fiction and how people see it early in their life.
I can't give you a confident answer on femdom for men, but my theory would have something to do with the rationale of "women ruling the household" in traditonal western culture morphing into something more aggressive and involving more demeaning of the man.
Vore makes no sense to me, but vorefags tell others constantly that it has something to do with power and fear, so it might have a similar brain process as BDSM but more extreme. Same with inflation. Hypnosis is simply another form of domination but of the mind. All three may come from cartoons, and that sometimes mixes with a young mind's subconscious in a weird way.
cont.