It can be a twisted path toward the female orgasm. The moves that worked last time will not necessarily work the next, and women are not always the most vocal in directing men to how they want to be pleasured for fear of insulting their partner. On top of that, women tend to have sex with their brains more than any other organ. We have to want it, and to feel like you want it to, to really enjoy it. But hey, the greater the challenge, the greater the reward.