Hey,
i am married, and so far the only way i've gotten my wife to orgasm is either with me using my hand, or doing oral on her.
I don't last forever, but it's not real quick either. I know that making sure you are very aroused before you start will certainly help. One thing that i've tried to convince her to do is to touch herself while i'm inside of her. I know most positions aren't right to stimulate the proper spot, but if there was other stimulation at the same time, it might help.
Ok. That was my point of view.
Zoomer