Kraft-Ebbing in Psychopathia Sexualis regarded deviance as arising out of disease processes. Freud who used the term perversion discussed sexual aberrations in Three Essays on Sexuality and he used the term perversion. Sexual perversions are conditions in which sexual excitement or orgasm is associated with acts or imagery that are considered unusual within the culture.
Paraphilias differ from what some people might consider "normal" sexual activity in that these behaviors cause significant distress or impairment in areas of life functioning. They do not refer to the normal use of sexual fantasy, activity or objects to heighten sexual excitement where there is no distress or impairment.
We can enumerate these forms of sexual deviance here. They are: homosexuality, lesbianism, bisexuality, sadomasochism (s-m), masturbation, fetishism, paedophilia (pedophilia), voyeurism, exhibitionism, transvestism, zoophilia and other paraphilias. There are a lot of these listed in books and encyclopedias, but we have listed some of the common ones.
Paraphilias include fantasies, behaviors, and/or urges which involve human and nonhuman sexual objects, such as shoes or undergarments, some requiring suffering or humiliation of oneself or partner, and may involve children or other non-consenting partners.
There are well over 40 types of paraphilias which have been identified and d ...