I hope other Christians feel comfortable talking about sex in church.  It's actually one of those topics that's talked about everywhere these days but in church, which is probably where we need to be talking about it the most.  There are a few reasons why it should be discussed, but the most important reason is because it's in the Bible. 
    If you've ever studied proverbs, you know that this part isn't easy to skip over.  Large parts of chapters 5,6, and 7 talk about sex.  It's such a aprt of life, and one we don't always handle very well.
    Pornography affects even those we think won's be affected.  A third of the female readers of Today's Christian Women admitted intentionally accessing Internet porn.  That's why we need to discuss it; because sex is a part of our life, and for many of us it's a struggle.  And the consequences are huge for us depending on how we handle this area.
    So Proverbs 5 says something we're not used to hearing:
"My son, pay attentiobn to my wisdom,
turn your ear to my wordsof insight,
that you may maintain discretion
and your lips may preserve knowledge."
Then we are introduced to the subject of this chapter....
"For the lips of an adulterous woman drop honey,
and her speech is smoother than oil;
but in the end she is bitter and gall,
sharp as a double-edged sword.
Her feet lead straight to the grave.
She gives no thought to the way of life;
her paths wander aimlessly, but she does not know it."

    There's no assigning blame to any gender, we both need to be very careful to hear wat the writer has to say about sexual temptation.  He says sexual temptation looks very good up front, it's fun to flirt.  It's enjoyable to check somebody out, to read certain kinds of novels, to look at pictures.  It's fun to engage in sexual activity outside of a marriage. 
    But there's a cost; verse 4 says "but in the end she is bitter and gall."  There's a sweetness at first but then she turns out to be bitter.  At first it tastes like honey, but then you want to spit it out of your mouth.  "It's as sharp as a double-edged sword."  It cuts, it hurts.  And then you get the picture that's common in the book of Proverbs: that of two paths.  The path of giving into sexual temptation is no that of a good life.  It's one that leads to death.  That which looks so promising up front ends up leaving you bitter and disillusioned. 

Sex is something God made for us.. but it comes with rules of course.  It makes it easier to just not put yourself in situations that are hard for you to act christ-like.