The Christian and sex

In my preparation for last week's sermon ("The Christian and Marriage"), I was struck by the following quote from Christopher Ash's book "Married for God" (p71) "Christians tend to focus on the epidemic of sexual activity outside marriage, but I suspect we ought to devote at least equal attention to the epidemic of sexual inactivity within marriages." I think this also has implications for how we relate to people who are not yet believers. For many a black mark against Christianity is that they perceive that it is down on sex. It may be that in our desire not to go weak on sin that our positive message about sex has lost much of its beauty, force and clarity. I suspect if we were to do a survey, then the balance between denouncing sexual sin and commending a positive view of sex would fall far short of a 50/50 ratio.