Im reposting something that i posted on another thread a while back. Im not reposting the complete comment i made but here is the main part.
Porn really is not the harmless thing many make it out to be.
I will share a little of our history as an illustration of where it can lead.
DH was a heavy porn user a few years ago and we had some serious intimacy issues. He had became so desensitised by looking at porn that he was virtually unable to have a normal sexual relationship. It took some serious couples counselling to pull us through that period. I sat down with DH one afternoon and went through exactly what I didn't like about his addiction. We looked at the lives of the performers and the risks they faced. We also looked honestly at the impact it had already ad on our lives and our relationship.
DH decided that porn was not worth losing what we had over and sought professional help to deal with his side of the issue.
What we both learned is that the porn had replaced healthy lust and sex with a warped substitute that killed the intimacy we had. I don't totally blame DH as I had always been fine with his porn viewing (as I had been with my ex's). But we learned the hard way what it can do to a loving relationship.
DH no longer views porn as harmless, and no longer watches it as in his own words to a friends teenage son "it messes with what you think is right and normal and almost stopped me functioning as a normal bloke in the bedroom"
OP don't get too hung up about the pop-ups as I even get them from film sites and other places (had one offering me the opportunity to enlarge my penis the other night). But I think the lies have to stop right now.
Feel free to show him my post if you think it will help any. To many people think it is all just harmless fun.
Guilty - no pressure on you but just have a read through and place yourself in my DH's position. That is the unfortunate reality of where we ended up. I used to be a defender of a persons right to look at porn if it suited them, and while I dont tell ppl how to live I want others to realise that there are risks and pitfalls involved.