I (F18) became sexually active over the past year with my current and first ever *serious* boyfriend. We are each other's firsts for basically everything (not including kissing, I've always been too scared) but have put lots of effort into our intimacy. I just want to say that sex with him is amazing. We are both open with each other about our needs and things we want to try. Recently, he has been sharing some concerns with me about the fact I do not finish during sex. We do other things outside of sex for me to orgasm, so it's not like I don't get to at all. He thinks that he just isn't good enough to get to that "level". I have told him before that it's anatomical and not all women do or even can and blah blah blah.
But here's my personal issue! I have noticed plenty of times during sex where I've felt a pressure build up like the kind I experience before an orgasm. And then, even when I feel these things and am moaning and clawing during it, I just cannot release it. I clench up like it's going to happen but it just doesn't. It kind of sucks because it's the whole build up without actually orgasming. Does anyone have advice? Like, does this sensation mean I may actually be able to orgasm from PIV? And if so, how do I actually make it happen? My partner is stressed because he thinks he's not doing it right or not lasting long enough, and I'm stressed because I think I'm missing something.