Sorry, didn't reply before.
Rape as an act - In A Natural History of Rape, Randy Thornhill and Craig T. Palmer define rape as "Human copulation resisted by the victim to the best of her ability unless such resistance would probably result in death or serious injury to her or others she commonly protects." I agree with this definition and would add that homosexual rape is also possible, with the same requirement to resist to the best of your ability. But under no circumstances can a woman rape a man. This is also compatible with the common-law definition which is "carnal knowledge of a woman not one's wife, by force and against her will." Anything else is feminist corruption of justice. Nowadays a lot of people think lack of consent is sufficient, but that is something I can never accept. Rape is sex accomplished by force, and that means the victim has to resist to the best of her ability; otherwise she is letting him have it. There needs to be a causal relationship between the violence and the sex, and that is not the case if the woman doesn't bother to resist to the best of her ability. Pretending women also can be rapists is a red herring employed by feminists to obfuscate the harm done to men by feminist rape law reform, to get useful idiot males to legitimize their persecution of men.
Rape as a crime - was always directed against chaste or married woman. It was a property crime against woman's father or husband. It never applied to sluts. Female whims like "consent" were rrelevant.