There are a bunch that do Cinamax (and straight to video tape when there were video rental stores) softcore movies and series. Jayden Cole, Kalani Lei, Hannah Harper, Jessica Jaymes, Krissy Lynn.
How dare you imply that porn stars are not real actresses. Lee Strasberg would be proud of their work. Anyone can choose a child to be sent to the gas chamber but how would Meryl Streep handle the situation of opening a pizza box with a dick inside?
I can kind of see the OP point about real actresses. Any woman can pretend to enjoy sex while saying the words "Oh God, Fuck me, Yes, Just like that, Yeah baby, etc. and get paid millions for it where acting in mainstream movies takes more effort (or it at least used to). I question some of the newer movies to come out.