I have never in my whole life had an orgasm through penetration, and I have had a couple of orgasms through oral since I was 16, I am 34 now. I can only really come through wanking, so I don't see the point in adding another notch to my bedpost, I'm literally doing it for them because I get no pleasure out of it.
When I have a relationship, I'll fall in love etc and I will literally dread the part when we have sex because I always seem to get guys who want to have sex a lot, I fake all my orgasms with work and at home.
I'm single now and I love it, I've not had civvy sex in over a year.
There's no point not faking and trying to show them what to do, because I have tried that with a few people and it just doesn't work.
I really enjoy masturbating watching porn and having orgasms by myself though! I'd love to be able to come through sex. But I can't, so I don't bother.