I found the porn thing hitting rather close to home.
For years my ex bought me subscriptions to Playboy as a birthday gift - I eventually asked her to stop because I just didn't have room for them (sort of like the shelves of National Geographic that eventually had to go). All the magazines I threw out - Playboy, Geographic, Time, I first went through and cut out pictures to keep as a reference library (a library of visual images is called a "morgue" for those who didn't know). I did hang on to a bunch of magazines that were "classic" - various anniversary issues, the Jimmy Carter interview etc.
The ex and I even had picked up some videos, and time to time would make sure the little ones were asleep and set up a love nest in the living room for viewing etc.
Move ahead a few years and I have a wife who for months was basicly bed-ridden (bad reaction to flu shot). I am working full time, drawing 4-5 hours a day, doing the 4 kids thing, the housework etc etc.
My drawings often use the female form as a framework, or reference for composition simply because it is so beautiful and visually accessable - people feel an affinity for different pieces in part I think because there is an inherent rightness given by being constructed around the female form. And I find the female form just so completely beautiful in the abundance of variety there is.
Anyway, I would have an idea and no picture in my morgue. I looked on the sites the guys from work were always logged on to for pictures to download for a virtual morgue. It became a game - get 6 pictures before leaving for work. Do you know how hard it can be to find quality images of beautiful women without the picture being raunchy, cheap or involving some sort of penetration? Anyway, the ex wondered what I was up to on the computer before I went to work,and found the morgue and flipped, and we separated.
We got back together, went to councelling for years (there were other issues such as a particular child we have etc etc). But eventually I noticed that for years (like, probably most of my married life) things weren't working and the wife looked more and more ill and etc etc. We talked about how we were basicly dysfunctional, didn't want to begin to hate each other because of that, so we separated again - this time for good.
Long post - key factor was that soft core cruising can have an effect too. I do think it was more the fact that the ex had doubled in size and felt ugly and worthless and that she'd recently met a sympatico guy, more than that I looked at photos of ladies, but still....
I still cruise the Titty Board, and AlmightyZeus.com a couple of times a week. Don't see it as an addiction but that could be me wanting to look good. Don't feel like a pervert though
