I said professional hentai VAs, not some twitter amateurs.
Besides, English "sex talks" are not really a commonly accepted thing in the first place. Long scenes typical in Japanese VNs full of degrading sex dialogues are pretty unique to hentai (not even JAVs have such developed sex dialogues in general). Even if you scour rule34, how often have you seen voice acting in English that is more than moans or pre-scene dialogues?
We have professional voice actors that won't be associated with porn. We have amateur e-girls that will be u for it and can do moaning sounds, but they are often not very good voice actresses in general. But even those amateurs willing to work on porn projects will likely balk at the prospect of having to act out the outlandish dialogues that are standard for hentai. "OOoooohohhhoh~~~ this cock is opening up my cervix~~~ OOooooOOhh~~~~ My womb is turning into a semon toilet~~~ Buhhheeeeee~~~ I'm a pig bitch~~~ Cumming~~~~~!"
So hentai voice acting is a profession limited to Japan.
For the record and to be clear going forward, my post wasn't about asking for games with Leah Clark or Colleen Clinkenbeard voicing them. It was more or less just asking if any Japanese game with a pre-existing Japanese voice-over had an English voice-over toggle option. When you break my post down to its roots, that's pretty much all it's about.
That aside, porn games outside of Japan do have professional voice-overs. Most of them work really hard at their job and make good money for doing so. Some even perform so well that they start getting jobs at big-name companies like Funimation. I can name at least one that has done so off the top of my head. Like Sarah Wiedenheft.
What you're saying just isn't factual. Nor is it helpful or relevant to my post. If you don't have any game meeting the above criteria, then just don't post.
Plus, Meru still exists and completely recks your argument. Just look up who she is and boom, argument out the window. That's not to mention some of the others. Not least of which being Hilary Haag, Jessica Calvello, Alexis Tipton, or Amber Lee Connors.