Sex, whatever else it is, is an athletic skill. The more you practice, the more you can, the more you want to, the more you enjoy it, the less it tires you.
Robert A. HeinleinI remembered a time when my grandmother had asked me to explain television to her - the guts, not the funny pictures. There are things which cannot be taught in ten easy lessons, nor popularized for the masses; they take years of skull sweat. This be treason in an age when ignorance has come into its own and one man's opinion is as good as another's. But there it is. As Star says, the world is what it is - and doesn't forgive ignorance.
Robert A. Heinlein