Sex is God's wedding gift to the bride and groom.
It would be easy to think that sexual sin is the worse kind of sin,but that's not true. All sin is equally bad in God's eyes(it's all a violation of His perfect standard and His will for us.)However,we may be more susceptible too sexual sin than other sins,because it can invade our thoughts as well as our bodies (Matt. 5:28).
Of course,you can get phusically sick as a result of sexual sin. But don't think that just because you are disease-free, your're off the hook. God designed sex for marriage and anything else degrades your relationship with Him. It infects your thoughts and drives out the effectivess of the Holy Spirit in your life. That's why God doesn't want us to be passive about sexual tempation. He wants us to run the other way.
Run away from sexual sin!
No other sin so clearly affects the body as this one does.
1 CORINTHIANS 6:18