How can a married man have an extramarital relationship?

In response to my article about married men looking to meet married women who are in sexless relationships like them (that is, they are not getting any sex from their spouses but are not interested in divorce for a variety of reasons), I heard from a reader, who says, "I am in exactly the same situation. I have been without any sex for the last 5 years, and unenthusiastic sex for 21 years before that. It seems like there is no honest way for a married person to find another married person who has been left in the lurch sexually. I even started my own support group for people in this boat but no luck find a woman in my area. Men should try the Experience Project; they have a group for the sexless marriage, and also a group for the sex staved sexless spouse."