Rape is defined as the penetration, however slight, of the oral, anal or vaginal opening with the perpetrator’s penis accomplished with a female under any one (1) of the following circumstances:
(1) Where the female is under the age of sixteen (16) years and the perpetrator is eighteen (18) years of age or older.
(2) Where the female is sixteen (16) or seventeen (17) years of age and the perpetrator is three (3) years or more older than the female.
(3) Where she is incapable, through any unsoundness of mind, due to any cause including, but not limited to, mental illness, mental disability or developmental disability, whether temporary or permanent, of giving legal consent.
(4) Where she resists but her resistance is overcome by force or violence.
(5) Where she is prevented from resistance by the infliction, attempted infliction, or threatened infliction of bodily harm, accompanied by apparent power of execution; or is unable to resist due to any intoxicating, narcotic, or anaesthetic substance.
(6) Where she is at the time unconscious of the nature of the act. As used in this section, “unconscious of the nature of the act” means incapable of resisting because the victim meets one (1) of the following conditions:
(a) Was unconscious or asleep;
(b) Was not aware, knowing, perceiving, or cognizant that the act occurred.
(7) Where she submits under the belief that the person committing the act is her husband, and the belief is induced by artifice, pretense or concealment practiced by the accused, with intent to induce such belief.
(8) Where she submits under the belief, instilled by the actor, that if she does not submit, the actor will cause physical harm to some person in the future; or cause damage to property; or engage in other conduct constituting a crime; or accuse any person of a crime or cause criminal charges to be instituted against her; or expose a secret or publicize an asserted fact, whether true or false, tending to subject any person to hatred, contempt or ridicule.
The provisions of subsections (1) and (2) of this section shall not affect the age requirements in any other provision of law, unless otherwise provided in any such law. Further, for the purposes of subsection (2) of this section, in determining whether the perpetrator is three (3) years or more older than the female, the difference in age shall be measured from the date of birth of the perpetrator to the date of birth of the female.