She explained the trouble with Valentine's Day (as if you didn't know ) Now Rachel Gibson tells all about . . . Sex . . . What is it about men anyway? Bad cars, bad jobs, even bad teeth--nothing convinces them that they can't snare a Size Two Babe with a D-cup chest. And after way too many internet dates with men named "luvstick" and "bigdaddy182," Lucy Rothschild should know. Lies . . . But sitting across from her now is...