[quote TarasCrazyTiara]@twinkletoesbluesky
This is actually a good point. We probably need a bit of info on the sex OP is having and how into it she is and aware of how to please men.[/quote]
Yeah, no... we don't really need any more info about how eager the OP is to please men.
The likelihood is the OP's vagina is fine - they're pretty forgiving things generally, stretching to accommodate as needed and snapping back to size pretty easily, as you will no doubt be aware - being a woman and all. I've pushed three huge babies out of mine and it's still fine.
But something either mental or physical is stopping her DP from orgasming through PIV. It may be that she's a bit looser than he's used to (or he has a small penis). It may be excessive wetness (unlikely to be dryness or tightness as OP would find that equally uncomfortable if not more so).
But more likely is that he has some mental block, either guilt, a distrust of contraception, or that he's conditioned himself to orgasm in a certain way.
It happens to many of us, I know women who can only cum in certain positions, using hands or toys, lying on their front etc. It's not unusual for women to be unable to cum through PIV, so no reason to be too alarmed that a man has a preference. I imagine that handys and BJs are easier because the focus is all on them, whereas with PIV they're having to do some actual work at the same time, so can't be 100% focussed on their own pleasure.
I know from my own experience (I'm not anti porn) that if I've watched stuff for a few nights in a row I will struggle to climax without it, so have to put myself on a ban for a while and try to get back to using my imagination. I also note a huge difference between DIY orgasms and ones my DP gives me (his are 100 x better!) so all orgasms are not created equal, the mental stimulation and fantasy aspect has a huge bearing on the quality of the climax.