Just to clarify my earlier comment, I think it's normal for clients to be concerned with the pleasure of the provider they are spending time with.
What I don't like personally is feeling pressured. Sometimes clients look shocked that I'm not instantly having an orgasm and I've even noticed reactions of anger or resentment, they take it very personally. But whether or not I or other women you're with have an orgasm sometimes has nothing to do with your skills as a lover or your attractiveness.
I think it's sweet when clients have a pleasing attitude and really want to do the right thing, it's definitely how people should act in intimate situations. But as a provider, I get more satisfaction making the other person feel good in all types of ways. Even with other women I tend to prefer being the one who's giving pleasure to the other. It's just how I am, and I think it's fine. I don't think faking orgasms is part of my job as a SP, but some would disagree.