I suppose this question is kind of mute when considering that my wife/fiancee' likes it.
Anyway, most of the women that I've done oral for loved it. In fact, I think the first women I ever did oral for orgasmed from it. But, there have been a couple of women that didn't seem to get into it at all. I did it for them the same way I did for the other ladies and I wasn't drunk or stoned, nothing.
So, I guess the question is if there are some women for whom oral does little to nothing. Ladies? Anybody?