Sexual masochists
Class I: Bothered by, but not seeking out, fantasies. May be preponderantly sadists with minimal masochistic tendencies or non-sadomasochistic with minimal masochistic tendencies
Class II: Equal mix of sadistic and masochistic tendencies. Like to receive pain but also like to be dominant partner (in this case, sadists). Sexual orgasm is achieved without pain or humiliation.
Class III: Masochists with minimal to no sadistic tendencies. Preference for pain or humiliation (which facilitates orgasm), but not necessary to orgasm. Capable of romantic attachment.
Class IV: Exclusive masochists (i.e. cannot form typical romantic relationships, cannot achieve orgasm without pain or humiliation).
Sexual sadists
Class I: Bothered by sexual fantasies but do not act on them.
Class II: Act on sadistic urges with consenting sexual partners (masochists or otherwise). Categorization as leptosadism is outdated.
