(a) Rape is an act of sexual intercourse accomplished with a person not the spouse of the perpetrator, under any of the following circumstances:

(1) Where a person is incapable, because of a mental disorder or developmental or physical disability, of giving legal consent, and this is known or reasonably should be known to the person committing the act…

(2) Where it is accomplished against a person’s will by means of force, violence, duress, menace, or fear of immediate and unlawful bodily injury on the person or another.

3) Where a person is prevented from resisting by any intoxicating or anesthetic substance, or any controlled substance, and this condition was known, or reasonably should have been known by the accused.

(4) Where a person is at the time unconscious of the nature of the act, and this is known to the accused.

(5) Where a person submits under the belief that the person committing the act is someone known to the victim other than the accused, and this belief is induced by any artifice, pretense, or concealment practiced by the accused, with intent to induce the belief.

(6) Where the act is accomplished against the victim’s will by threatening to retaliate in the future against the victim or any other person, and there is a reasonable possibility that the perpetrator will execute the threat.