actually, most female having difficulty to reach orgasm from their sex. But actually, it is not that difficult to achieve that. Most important thing is another half need to understand the rhythm of a human body to reach orgasm. Simply say, we need to control the speed. At first the speed need to be slow enough to let another half to have enough preparation. Once another half is ready, then you could speed up. I had made a iphone app to simulate the whole process. Hope everyone here could have a happy and enjoyable sex life. https://itunes.apple.com/hk/app/srhythm-improve-your-sex-technique/id1134873357?mt=8