Nerve's Guide to Sex Etiquette for Ladies and Gentlemen by Em & Lo ABOUT EM & LO Em and Lo (Emma Taylor and Lorelei Sharkey), the Emily Posts of the modern bedroom, co-authored The Big Bang: Nerve's Guide to the New Sexual Universe (Plume 2003) and Positions of the Day (Chronicle 2003). They write a monthly sex advice column for Men's Journal magazine, and have contributed to numerous publications, including Glamour and The Guardian (U.K.) They both live in New York City, where they spend far too much time together.