How to block porn torrents?

Why stop? If you both enjoy watching it from time to time, then stop being ashamed and enjoy it. Believe it or not, watching porn together is not some evil, icky thing. If you both like it and have some fun doing it, then by all means, do it. It's not embarrassing. No two marriages are alike and no single set of rules works for every marriage. Don't listen to prudes. Listen to yourselves and each other.