I like the girl on top posistion but I will say it has never got me off, but the grinding feels oh so good. Then again its more about what a woman is saying or what sounds she is makeing than what she is doing to me that gets me off, nothing gets me off faster than getting her off, but dont feel like your bad if your not getting him off while your on top. As long as his unit isnt getting soft then he is having fun
but be carefull about leaning back while on top, that can be cool but that can hurt jr.