So I've been with my boyfriend on and off for almost three years (I had moved to Canada for two years and came back to be with him again, all of the love was still there while I was gone). It's been around 8 months of us being here, together back in a real relationship. Sex with him is great, don't get me wrong it's fabulous and I'd say hes very above average in the size department, I just can't orgasm with him. He knows about this, he's given me a few mini orgasms through oral but that's it. I really don't know what it is because it has that amazing feeling you get right before an orgasm, but it won't go any further than that, it just stays right there. The only thing that I can possibly think of is that I'm so accustomed to a vibrator that nothing else will get me off now. Any tips, any suggestions, anything?