This technique absolutely magnifies the sensation in your clitoris!
While rubbing my clitoris like I normally do with the fingers on my right hand, I take my left hand fingers and pinch my left outer labia and pull it hard to almost the point where it would begin to hurt. For some reason, pinching and pulling the outer labia like that makes the clitoris much more sensitive. I just hold my outer labia firmly like that while I continue to rub my clitoris, and the pleasure is intense!
Obviously, this technique works best if you keep your vaginal fluids from getting onto your outer labia where they would make it slippery and hard to get a good grip on.