I have a problem. I can't orgasm when I'm with my boyfriend. It doesn't matter what he does or even if I'm doing it myself. I consistently fake orgasms. I can orgasm just fine on my own but as soon as he is there, I don't even feel a build up to an orgasm. He'll rub my clothes which feels amazing and my legs will start to shake and I feel like little mini almost orgasms but that's it. I don't ever get the big huge build up and release like I do when I'm going solo. Any advice? Or possible explanations?