I've recently seen a trailer from Greg Lansky's film called "Being Riley". And in this trailer, the lady takes a guy in her ass in the doggy position and then she says in a very melodic, sexy voice "Ass", "Anal", while the guy is nailing her nice ass from behind.
She puts you into the anal mood, while the guy is doing her nice ass good.
This was the anal lady speaking, alright. But she said it so well and so sexily that I suspect she recorded her voice separately from her scene, and then editors put it together in her final film.
Perhaps this is something Legal Porno ladies should try. Except they should say "Ass", "Anal", "Double-Anal". It's the woman in the scene who should do the talking. And if she records her voice separately from the scene, then it wouldn't be that hard for her to say it in a sexy way.
I think the woman's voice for the anal boys works really well in that "Being Riley" trailer. I got a hard-on just from listening to her, while the anal guy was nailing her.