Historically, perversion was defined as any sexual activity that "distorts, blocks, or interferes with" what a society or theory deems to be normal sexual development.
Traditional views often labeled acts as perverse if they strayed from the "natural" biological purpose of procreation. sexual perversion
Some psychological theories view perversion as a split between "genital sexuality" (as a loving force) and "pregenital" impulses, often rooted in early trauma or a mortal terror of intimate, reciprocal relationships. 2. Clinical and Legal Evolution Historically, perversion was defined as any sexual activity
The classification of these behaviors has shifted from moral or religious "sins" to medical and psychological conditions. 2 Perversions in Men and Women - PEP-Web sexual perversion