From a personal perspective I wouldn't want my girlfriend to be a porn star either. Although I do think that as individuals we are all so different on this planet that I think you would find at least some people who would want to work in the sex industry even if they were not getting paid at all.
On top of this I also believe there would be guys out there that would have no problems with their girlfriends working as porn stars, as hard as this might be to believe for most of us.
John
Attracting People.com