**Before attempting this, make sure your woman is flexible enough to do this... we don't want any pulled hammies or thrown out backs**
Ladies, get into back-bend position (upside down U). Guys, you may have to bend your knees a little to get to perfect entry level, but with the angle comes amazing pleasure. As you thrust, push upwards, guaranteed to hit the G-spot everytime. A picture says a thousand words.

Enjoy!