EUGENE, SIR: Is it just me or are more women asking for rougher sex, especially the kind that involves dirty talk? And how do I start this without getting it wrong? Advice, please. — Walter S. Dear Wally, My Man: This is probably pro playbook stuff, stuff that’s not likely going to be comfortable, easy or successful in unfamiliar hands because, simply put, done well? It can be a worthwhile adjunct to sex play. Done poorly? It can be a relationship destroyer for any number of reasons.