Heavenly Father,
You love this man very much. Help him to realize you have great plans for him and can give him a fulfilling sex life in your timing that will be much more satisfying than the counterfeit the enemy is throwing at him.
Abba, I am asking that you help him get to the root of his addiction. If it is boredom with life or some kind of emotional deficiency that is being sexualized (loneliness, need for acceptance, etc) please minister to that wound. Father, have mercy on my friend here and let these addictions turn to dust in his mouth. I pray Father, for so much mercy that it won't even be a matter of him resisting, but it won't even tempt him. If it does, I pray it will be mild and fleeting and not dominate and torment his thoughts.
I plead the blood of Jesus over my brother. Help him Father to have pure thoughts.
Lord, please give my brother the desires of his heart. If he is married, bless his marriage. If he is not, I pray for that right woman to come along in his life. One that he will enjoy physically, emotionally, mentally, and spiritually.
In Jesus' name
Amen