To be clear, John Bouvier isn't here to take calls about enlarging your member or your "friend's" penchant for feathers. (There are 900 numbers for that.) But if you have serious or sensitive questions about sex and sexual health, the president of this volunteer-staffed telephone hotline (which celebrates its 30th birthday this year) is on-call and online to help provide information and referrals. The witty Bouvier, who draws no salary, possesses extensive knowledge that provides a strong foundation for the organization's colorful sex educators. Being based in the unique sexual playground that is San Francisco has helped him prepare the educators to handle issues requiring more sensitivity and less judgment than callers might encounter with nonlocal hotlines. And Bouvier enjoys the calls so much that friends say his only problem is getting him off the switchboard.