Although younger women appreciate her, too—as the godmother of masturbation—an older woman can't do better than Betty Dodson (Sex for One, and her new one, Orgasms for Two). Round, gray, fearless and kindhearted, she will be the encouraging best friend, the straight-shooting neighbor who knows what she's talking about: marriage, monogamy and infidelity, sleeping with women, sleeping with men, sleeping with yourself. Plus she looks like everyone's Aunt Shirley and writes like her, too—if your Aunt Shirley is a wise old tiger.