Finally! A legal definition of virginity! It comes from our delightful blog guy, Australian pimp/filmmaker, Justin Sisley. From the Terms and Conditions of the Australian Virginity Auction 'Documentary.'
b)The female applicants must be Virgins. A female “Virgin” in this instance is defined as a female applicant who has not had the introduction by a person of his penis into her vagina or anus regardless of whether or not there is or has been the emission of semen.
c(i) The Male applicants must be Virgins. A male “Virgin” in this instance is defined as a male applicant who has not introduced his penis into the vagina or anus of another person regardless of whether or not there is or has been the emission of semen.
c(ii) Additionally, the male “Virgin” must not have had the introduction by a person of an object or penis into his anus, otherwise than in the course of an appropriate and generally accepted medical or hygienic procedure (Obtained or provided under legitimate medical reasons and not false pretences (sic)).