It's hard to believe a year has passed since we last came together to celebrate National Masturbation Month. Of course one of the nice things about this month is that it isn't something we have to do together. Masturbation is primarily a solo activity, even though you might choose to invite someone in, or along, for the ride. And that's what I love about this month.

When people find out that I write and teach about sex for a living they expect me to be thinking and talking about people having...