If you're watching hentai shouldn't voice acting be one of the last things you care about?  I guess I can understand not liking the art but I wouldn't think voice acting is why you're watching hentai.

-edit-

lol, watched the video.  Ok, I suppose that could annoy me...

They look NOTHING alike. This fails so hard.

IDK, I don't watch regular porn anymore (just pretty much read doujin mangas), but I fucking hated it when the actress (and especially when the actor) talked a lot. Just unnatural and annoying.

And in BDSM films, the story and acting is a lot more important in order to establish suspense of disbelief, hence why live action BDSM films suck (plus there are only a few companies that hire decent looking girls).

... anyone else feel weird talking openly about their porn preferences? O.o

They both look like Astroboy.

Oh that's the real dub alright. They talk like that the whole time. It's hilarious. One of them says, completely without emotions.... "Oh.... my butt." It's the funniest dubbed line I've ever heard in my life.

i said looked better. i don't know any hentai movie fully just looked at pictures. im guessing they're voice acting is bad as this? , i don't know if i can find anything worse.

No need to.  A few people might judge you for it, but you probably don't care what those people think anyway.

Well, VGC does have a tightly knit community.

Bible Black is basically the Manos Hands of Fate of hentai. I know several people who have seen it, and never watched any other hentai in their life. I've actually watched it with girls, who laughed the whole time. All the dialogue is that bad, and the girls have penises. It really is a barrel of laughs all the way through. I still haven't watched the whole thing though. I had to split it up into chunks and forgot to finish it. It's just soooo damn slow, too.

Pfft, modern hentai usually suck. I prefer the older ones like La Blue Girl, Urotsukidoji and Magical Twilight. They can be pretty disturbing but they were funny as hell. Dragon Pink was quite funny as well. Wait, can I be banned for this?