having had sex with about 100 female pornstars over the past 14 years I would highly suggest that you keep it a fantasy. I can't say how many times I wanted to work with a girl and then it turned out to be a HUGE let down.
So many porn girls don't know how to have off-camera sex without the faces and annoying porn moaning and the "Fuck me!" over and over which to me is unbearable. When I was being cast for scenes and if it was a bg or bgg with a girl I had not worked with before I would watch some clips of her to see if she was one of those.
Most of my favorite porn stars look NOTHING like they used to now a days. Even beyond that, I really don't even go for anything but more "normal" girls in every day life..