>>81576527I will agree with you that it could potentially confuse someone's dick, it's not impossible considering some people do end up going too far with their fetish and rewiring their sexuality, you're not wrong
however, lesbian porn is such a, well soft fetish that I doubt that it could happen especially since men finding women having sex with each other arousing is pretty much universal for men
I reckon that instead of a man becoming desensitised to normal sex and only wanting to watch women have sex with each other there could be some feminisation stuff occurring like the porn watcher wanting to become the woman in porn and have sex with women as a woman, I think that's a more likely scenario and even then it's something very rare
also like you said it yourself, it's a fantasy so not an expectation, something that would be nice to happen but it's not a requirement