The first thing to be said is that this topic is well off the main topic of MBT. However MBT claims to be a model that subsumes all other models ( it is a theory of everything ), and so if neither Tom nor Ted object, a good TOE should take on all comers.
The second preliminary thing to be said is that this thread should almost be a sub-thread of the "differences between the sexes" thread. Men consume the vast majority of porn, many gravitate to it like moths to flame; but women seldom are consumers of the stuff, and when they are, it is generally because a male companion wants them too.
So Okay, Porn.
There are several dynamics involved here.
From an MBT perspective, all structures can be modeled in terms of software. .... just like everything that happens on your computer reduces ultimately to ones and zeros. It has been found that it is easier to design software as a series of 'objects' that then get 'processed'. For instance, the letter "A" is a very simple object.. it has a specific code of ones and zeros that, when called upon, delivers the set of pixels that look to us like the letter "A". It's much easier to have these objects than to re-write all the stuff that it takes to make a letter "A" every time we need one.
Similarly, our individual bodies are complex constructions of individual objects: Eyes, livers, individual cells, etc, and each has their own level of operating consciousness and agenda... including the testicles, so to speak.
If you look at the back of a dollar bill, one of the symbols to be found there is a pyramid built of blocks, only the top one of which has an eye in it. One of the meanings of this symbol is that "only the top block sees clearly and should be the decision-maker". It is the same with software... there is a chunk of it that does the administrating and only that piece of software should be doing the directing; You wouldn't want your "letter 'A'" function to be running things on your computer because then all you would get is letter "A" all the time. Similarly, we humans are complex organizations made of sub-organizations each with their own operating systems and agenda... and when we allow those sub-processes to override the administrator at the top, we tend to run into trouble. The belly wants to eat, the drive to socialize gets channeled into TV watching, and testicles want to drill. If we let the sex function over ride the top administrator in our being, it is the same sort of process error that would occur if your computer kept spitting out "A".
One stage of evolution is learning to identify, then understand, then manage one's subsystems. So this is a great opportunity for you to do that.
Dynamic 2: Some guy somewhere, knows that there are lots of sex-drives out there that can get co-opted to his profit.... so he produces porn to do that... to co-opt your operating system to his benefit and your detriment. This is sort of like the British cultivating opium and delivering it to some third world country for big profits and draining that country of its resources and well being: Starkly predatory.
Dynamic 3: Due to technology, we have all these wonderful representational systems (spoken language, written language, pictures, audio-visual representations, TV, the internet) that, because primarily of their craftily contrived shiny features, seem "more real" than direct experience. Mostly unconsciously, we assign to them a reality more vigorous than the one we experience directly: "My spouse is not as fetching as the model on the screen". To learn more about this whole dynamic, search this site for a link to the book "Four Arguments for the Elimination of Television" by Jerry Mander.
Dynamic 4: We see the shiny pictures, but what the pictures don't convey is what happens off-camera. If you study up on how the porn industry operates, and how it profoundly degrades everyone involved with its production, you will never again be able to view those writhing bodies in any sort of desirable light. The New Yorker magazine seems, about once a year to do a devastating expose on this field... if you can find some of their articles (most good libraries have them a few years going back), that will help develop your awareness about this. The facts are ugly as ugly gets.
Dynamic 5: The sex drive is much like a horse: Lots of big energy that has to be properly trained. A badly trained horse is a wreck (and every interaction that a human has with a horse is an act of 'training'). The method for dealing with badly trained horses is to not try to crush out the old training (you can't) but to train them afresh with processes that are shinier, more rewarding, than the ones that they are already familiar with. Then the old undesirable patterns become inactive due to lack of interest. Here, for you, that may well mean something like daily masturbation while thinking of something along the lines of being the best man that you can be, or, if you are up to it, in service to 'God', or the highest principle you can imagine (Truth, Justice, etc.). I know that that sounds a bit weird, but being human at all is weird in the extreme.
There are probably additional dynamics that I am not presently picking up on.
You sound like someone who is ready to deal with things and take on whatever fights you need to; I am confident that once you understand the full reality behind Porn, you'll drop it as easily as you would spoiled food you come across at the back of the fridge.