If I am to be perfectly honest, the only porn star experience I ever want to have is the experience of going out drinking with Ron Jeremy sometime. From all accounts, he's basically just an average guy who's where he is because of the genetic accident of having been blessed with a horse's cock, but he's never let that good fortune go to his head.
For those interested the documentary Porn Star: The Legend of Ron Jeremy is a fun investment of 80 minutes. Available from Netflix (at least it was a few years ago; I got it from them).