Thanks for all the replies guys, definitely going to try some of your suggestions.
@nattynightmare and WOLF: as far as we know she is alright in that department, she saw an OBGYN about a month ago and has been to that doctor before and she never had a problem with the exam. The OBGYN also did not see anything missing or unusual, I don't know if they specifically HAVE TO look for pelvic problems, but her routine appointments never seemed to raise any questions and her OBGYN said she was healthy. I told her the next time she schedules an appointment she should also ask about the pelvic issue.
RE foreplay: This is a real issue, and perhaps you guys can give me some more ideas regarding this because it has been this issue which led me to believe Vaginismus was at play.
Foreplay is taboo in China and she never had a boyfriend who performed these actions on her, I am the first. Her previous boyfriend used his fingers, but she said he was very rough about it and she hated it, this having been her only previous experience with foreplay she is really hesitant about it.
I have tried performing oral on her several times, which she enjoys for about 5 min, but then begins to feel uncomfortable, even painful. Same with my fingers, foreplay only lasts about 5-10 min because she starts getting uncomfortable and feels pain. I know if she is not adequately stimulated this can be a cause of pain, but if foreplay makes her feel bad, how can I get her aroused? Specifically, WOLF mentioned I should try to give her an orgasm before penetration...how can I do that if she begins to feel uncomfortable after such a short time?
I should add that the first time we had sex was one of the three times we were actually successful, and she did not allow me to perform any foreplay AT ALL, I desperately wanted to "warm her up", but she was too embarrassed and we just went straight to sex, which, for one reason or another worked and was even enjoyable for her. The reason why I think there might be something psychological at play is because she never saw the full size of my penis, only after she saw my penis fully erect did we start having these problems. Also, she does not want to get on top because she thinks it would be MORE painful...
I have tried talking her through it, I have tried giving her massages to let her feel more relaxed, I have kissed her in her favorite spots, and for all intents and purposes she is as serene and tranquil as a hibernating bear, but the moment her panties come off she tenses up.
I will try getting a vibrator and see how that works out, I will try to use my fingers more gently and keep an open dialogue with her about it. In my opinion, and I may be wrong, I think its a comfort/trust issue, I don't believe there are any physical problems, but mainly psychological ones. If she could just be relaxed and not be so tense, I think we would be alright, but I really don't know how to make her feel at ease about these things.
Its frustrating because all other fronts of our relationship are fantastic. We truly love each other and have endured a (very)long-distance relationship with love and trust, we laugh at the same things, and enjoy time with each other. We both feel as if we could be married in the future because we already have a relationship built on love, trust, and openness. We are able to share deep secrets with each other and feel the most comfortable in each-others arms, so its a real bother that we can't physically manifest those feelings. She wants to have sex, but something is stopping her, she thinks its about size, but after reading your comments and my other research on the internet, I think it might be something deeper and more psychological.
Anyway, thanks again for the replies, I hope you guys have some suggestions on how let her feel more receptive towards foreplay and such things.
Thanks again!