Why is sex SO IMPORTANT in a christian marriage?

Lets find out, my friends, some reasons why sex IS important in a christian marriage!
Many do not want to talk about it, disregard the subject altogether, or even will look with an air of superiority to those that want to talk about it!
Why to talk? Because sex is as i observed NO1 weapon that the devil is using to destroy young minds, people at any age really, marriages..
As i am writing these very words, many commit sexual sins and they destroy themselves and in the process, anyone in their way.
Bible reference
Proverbs 5:18-19
May your fountain be blessed, and may you rejoice in the wife of your youth. A loving doe, a graceful deer— may her breasts satisfy you always, may you ever be intoxicated with her love..