How can I get over the edge?

My man hits spots no one has ever hit before. I will get so close to having a g-spot orgasm but it just feels I can't get over the edge. It drives me nuts until my body can't take any more. How can I get over that edge? I did once with him and I squirted all over, then he kept going after a few seconds and I did it again. It was amazing and I need to know how to do that again! Please help!!!!!