Female sexuality can be very complicated. Just a complicated as political or economic ideology. One complication loves another so try discussing political theory or perhaps monetary policy while engaging in the throes of passion. Be careful though because one complication can cancel out another. For example calculus can get pretty complicated and the books are pretty heavy. So if you were to hit her hard enough in the head with a calculus book that would be one complication canceling out another. Be careful with that type of thing.