The women here are right; no one thing will work for every girl.
Try to just respect and look out for them, if you act correctly and are genuine then it will work every time.
One thing that I might mention is finding the G-spot. Most women have never had that done before. It is located on the front wall of the vaginal, generally about an inch in. It is one spot that even women don't really know about. If you have gotten to that point then it might work for you.
One other thing that might work is using temptation, whether women want to admit it or not they want what they can’t have. Now I’m not saying you shouldn’t be nice or respectful, but try doing things that make her come to you. Breath softly on her neck, stay just out of reach.
I have found that using those things makes it more of a challenge for them and they love it. One scenario was when my girlfriend were in the hot tub, we were both naked when we went out. She jumped in and I stayed out, circling the tub just out of her reach. It becomes almost a game, but you have to learn when to just let her have you, after awhile they will finally lose interest.
Note: I am not a professional; I just have been around more then my fair share of women. Many women are not the same in any way and I would suggest just listening to the women that are posting here.