If you're a journalist, start with Amanda Lang, the publicist for Come As You Are. She'll make sure Emily sees your question. If you're an author, editor, or publisher, reach out to Lindsay Edgecombe, Emily's literary agent. Contact info for both is below.
"It’s always my pleasure to receive comments and questions. With the success of the book, there has been a sudden flood of emails and I’m afraid I’m just not able to answer all of them. One day I’ll have a whole team of sexperts responding to all the email, but until then... If you have a question about your (or a friend's) sex life, pretty soon I'll be restoring my blog, The Dirty Normal, which died an unexpected death due to server issues. In the meantime, check out my FAQ page, which addresses 90% of the things people email me about."
Simon & Schuster
1230 Avenue of the Americas
New York, NY 10020
LEdgecombe at lgrliterary dot com
Levine Greenberg Rostan Literary Agency, Inc
307 Seventh Avenue Suite 2407
New York, NY 10001