At Last A Comprehensive Guide to Sexual Intercourse Sex is as old as human civilization--so why, after all these years, are the secrets of a rewarding sex life so elusive? Fortunately, The Sex Instruction Manual is here to answer all of your most pressing questions: Why do men fall asleep after achieving orgasm? What's the G-spot and where can I find it? How can I introduce sex toys into my relationship? Are there really condoms designed for women?...