This week’s topic comes from a fellow who loves giving analingus to his wife while she masturbates. Curious, but never tried it? Do you have concerns regarding the hygiene issues of giving a rim job?

For those of you who want to learn some tips on technique, as well as how to stay safe while orally pleasuring the pucker, Nina Hartley unravels the “Riddle of the Sphincter.”

Got something you want to ask Nina? (Of course you do.) Drop her a line at tuesdayswithnina@gmail.com. Now, while can’t promise that every question received will get a personal response, however, those that do will be answered frankly, entertainingly, enlighteningly and, if we know Nina, in the spirit of happy, healthy sex and a satisfied libido.