My husband has a new fascination with my G-spot. We have found it but cannot quite get the right satisfaction out of it. Two times now he has found it and gotten me to this point where I feel like I am about to "cum" but then this feeling of frustration overcomes me because the feeling like something should be happening but is not goning to becomes overwhelming and I feel like I cannot continue. At this point I either insist that he penetrate me or push his hand away. Its hard to describe this feeling that I get. Its kind like right before having a clitoral orgasm when you just feel like it needs either more or less pressure, but I cannot figure out what to do. I think its hard because I've been masturbating since I was a teen and I know what my clit needs to "cum" but I've never experienced this feeling before. Any advice??

Since all women are different it's really hard to say. I know it's not what you were hoping for, but I think you guys have to just keep trying different things.

it won't happen over night, but it will happen one day when you least expect it to

Well your at least doing better than most. You would be surprised at the number of couples that haven't been able to find the magical spot. Good luck, and don't give up. It's worth the trouble and remember the second time will be alot easier.