>>1744665Desensitization.
See, anon, drug addicts start to use higher doses of drugs to achieve the same level of euphoria once the brain desensitizes the habit reward pathways.
Same shit happens with porn, but instead of higher doses, you search up for more "novel" and "taboo" material. This excites your brain because we have a very intricately wired fascination with new stuff.
When abstaining, your brain heals up the overworked pleasure receptors and you get hard from tamer stuff again.