Not really. My parents knew that regardless of any rules or restrictions they would place on me, I'd find a way around them and watch porn anyway. So the subject was never brought up.
My father had equally pragmatic rules about alcohol and drugs. He made sure I was educated about the effects of drugs. He made sure that I knew that my mind was pretty awesome and putting it at risk is stupid. (He also knew that kids do such things- but try to be smart about it.) He told me my grades had to stay up and I couldn't lose my job. And he said that if the police came to the house and knew my name- if I was somehow involved enough in something and didn't have sense enough to get away- I would lose all of my freedom. Guilty or not. And if he ever caught me driving under the influence- the same.
I had a lot of freedom, and I made some mistakes, but overall it worked out.
I think that's a really good model for educating the kid, because it's actually a representation of how society at large works. We have lots of freedom, but if we abuse that freedom then we lose it. Driving licenses can be suspended or revoked for breaking traffic rules, hefty fines can be charged for misdemeanors, the individual can be imprisoned for more serious crimes, etc. Props to your dad.