Because few men report such an occurrence, and because in many jurisdictions ‘rape’ is only recognized when it’s a man having sex with a woman against her will

Because few men report such an occurrence, and because in many jurisdictions ‘rape’ is only recognized when it’s a man having sex with a woman against her will and not the other way around, it’s hard to get reliable numbers. “Much like female erectile response, male erectile response is involuntary, meaning that a man need not be aroused for his penis to become erect and be placed in a woman's vagina; mechanical stimulation is all that is necessary. However, male victims of sexual abuse by females often face social, political, and legal double standards. Gender-neutral laws have combated the perception that rape rarely occurs to men, and other laws have eliminated the term rape altogether.” http://en.wikipedia.org/wiki/Rape_by_gender http://en.wikipedia.org/wiki/Rape_by_gender