fake it or take it
I never got why girls would fake an orgasm. In doing so, you lead your partner to believe that whatever he is doing is working; you perpetuate the unrewarding performance. But then there's this...if you don't fake it, the brutality persists. By faking it. you put an end to it. I guess it's kind of like giving candy to a kid to shut them up, not the suggested discipline but quick and effective.