TRIGGER WARNING: sex-related philosophy post
Almost all masturbation and all pornography usage are virtualizations of a biological teleology, specifically our natural means of realizing the telos of reproduction: sex. Because the achievement of a natural end is rewarded with pleasure, simulation of that ends achievement does much the same and it reinforces that condition in the psyche. The further removed the simulation is from its default means, the more severe the consequent paraphilia will be.
[not advocacy]
Because of this it is the case that the most realistic simulations are the least deleterious, though none will escape removal from the natural means. You might think that the most realistic simulations would consequence indifference to the real thing, but it actually consequences maintained attraction to the real thing on account of conditioning oneself thereto—whereas the more removed and deranged the usage is, the tastes and attraction will develop in suit.
If you have a porn addiction, (y haven't u listened to Varg, TGO or SolBrah yet?) it is very important that at the very least—you don't spiral into developing tastes out of touch with your biological teleology, which is to say what you're supposed to like. That's really less than the bare minimum admittedly, but it might be helpful for severe psychohazard prevention.