I really understand how you feel. I'm posting anonymous because I'm sure there are people I know on this board and I don't particularly want them to know the details of the sexual side of my relationship (I don't think they'd really like to find out by accident by clicking on a thread either).
I get annoyed because I don't get out of anything the same that my boyfriend does. I would like to have the same kind of satisfaction that he gets without really having to think about it but I can't engage myself in anything like this anymore. I'm kind of fatalistic; I just know it won't happen (which I know is the wrong attitude, but I can't help it). Then I don't want to do anything, because I hate that he can orgasm and I can't. I hate the inequality but then, so does he. It's just it's worse for me since it affects me more obviously! We are quite open with each other and he knew long before our relationship became sexual that I had never had an orgasm. I often wish I hadn't told him this because it upsets him that we're not equal here.
It isn't that I don't have the desire, though when whatever actually happens it just isn't ... it just doesn't happen. When I'm on my own I get obsessed by other things and am uninterested in sex; though sometimes I am just completely crazy with lust for days, so that would be a lie.
It's so frustrating. I don't know what it feels like so it's sort of confusing; I don't know if I could have been close at some point. I think I might have been but ... aaaaaaagh. I hate how women have to have all this psychological engagement crap when my boyfriend can just orgasm like *clicks fingers* that. It makes my inner extreme feminist angry and want to never have sex with him again (this is the irrational voice I try so hard to silence!!)