(n.) The crime of cohabitation or sexual commerce between persons related within the degrees wherein marriage is prohibited by law.

active algolagnia adultery algolagnia algolagny amphierotism autoeroticism bisexuality concubinage coprophilia criminal conversation cuckoldry exhibitionism extracurricular sex extramarital relations fetishism fornication free love free-lovism heterosexuality homoeroticism homosexualism homosexuality incestuousness lesbianism masochism narcissism necrophilia paraphilia passive algolagnia pedophilia premarital relations premarital sex sadism sadomasochism sapphism scotophilia sexual inversion sexual normality sexual preference swinging both ways transvestitism tribadism tribady voyeurism zooerastia zoophilia