How old are you? How long can you stay hard? How long does it take you to cum on your own?...can you?
Usually when I first meet a woman I'm so turned on by the new experience that I stay hard even after I come and as soon as the sensitivity leaves I'm ready to go again...but I'm also 23, have a good diet, am in pretty good health.
I mean yea I have to be ready to go...as others have mentioned she should do something for you...but it shouldn't take as much effort to get you to go off as you have to give her. Not all women orgasm that easy....takes more work to get them there.