Thats kinda weird that you'd put women who dont mind if their boyfriends/husbands watch porn or watching it themselves in the same category as prostitutes, swingers and porn stars. Vast minority? Maybe in mega prude ville, population: the only women you know. I'd reevaluate that madonna/whore complex you got going on there.
This one guy I dated for like, a second, stands out above all the rest in that he totally made me feel like the dirtiest whore ever. I went through his computer one time to see what kind of porn he liked and I came across this video, it was of this girl playing the piano and slowly stripping naked. That was it.

His internet history was full of pro-amateur soft core solo girl sites. It was like his sexual interested never evolved past his 12 year old mind. I ended up showing him his first hardcore movie ever, he asked me, "where's the cheesy music?"