A comment from Jesus Creed sums up my response as well:
Interestingly, I have had a number of older folks tell me that in all their years of going to church they have NEVER heard a message on sex! Seeing how sexuality is a significant part of our humanness, as well as the ways it has been distorted throughout human history, I think we need to be talking about it. Especially since Jesus talked about it!
I look forward to reading this...
Why is the church so reluctant to talk about sex ? Perhaps we should take a cue from Salt 'n' Pepper?
update: Check out Part 1 of McKnight's response, and Part 2, his critique.