I tend to react the same as slap and bombmaster... if you wanna talk about the psychology of it, the basic idea is upending the conventions of women acting prim and proper.
The problem comes when the coomer brain requires a higher and higher level of level of stimulation, and common sense goes out the window in favor of sating the original "upending of conventions" - to even a ridiculous extent, I'd guess this is where things like scat fetishes come from. All this is logically consistent, my problem is you get into territory where the brain forgets why you even had the original fetish.
By that I mean - use corruption as an example; the original idea was this prim and proper girl stooping far from that ideal. At some point down the contiuum she's fucking disgusting men in a very unsafe way. But at that point, for me, the appeal of the fetish stops because she's no longer the prim and proper girl breaking conventions in a sexy taboo way, no, she's just a disgusting person period.
It's the same idea of why I find occasional sharing setups hot, but then so many games devolve into turbo slut mode, and the original contradiction that made it hot isn't there; it's no longer a taboo contradiction; she's merely a cheap slut doing cheap slut things.
