If you have sex with someone then you consent to having sex with that person whether that person was the real Barrack Obama or a fraud. I see rape by fraud as a woman deciding who and who cannot claim to have had sex with her. This leads down a slippery slope. If a woman can report any man as posing as someone else when they have sex with them any woman can claim that any man who had sex with them was acting as a fraud and thus punishable under the law. That is completely, totally, and utterly ridiculous.
You chose to have sex with someone, you chose to give consent to that person, if that person was a fraud then it is your fault for not knowing better. Each partner has their own form of birth control, women have birth control, Plan B, and woman condoms while men have male condoms. This means that if you chose to have sex with random people on the street, you still have methods to prevent pregnancy in the female of the group. If your a male you can use a condom so if the girl in question is not using birth control, a woman condom, or Plan B, then you have your way to prevent pregnancy. If you are the girl then you have Birth Control, woman condoms, and Plan B so if the male you are having sex with is not using a condom you still have methods to not get pregnant.
In other words, if your having sex with anonymous people, you have your own responsibility to stay protected so if the partner is not protected you still have your own protection. If your argument is "I trusted my partner" well I'd hate to break it to you, but if your partner is sabotaging Birth Control then you have larger problems.
Rape is unconsensual sex, meaning the man or woman says "No, I do not want to have sex with you" and the other person forces that person to have sex or uses drugs for the sole purpose of getting in their pants. Rape is not when a man or woman says "Yes, I chose to have sex with you" and then the person does something during the sex that the partner does not like. If the partner in sex does something the other does not like, that person can refuse further sexual intercourse. If after saying "No I don't want to have anymore sex with you" and the partner forces more sex on you, then it is rape/sexual assault. If however, thoughts are not words, one cannot say "Well he raped me because he wanted to have sex but I thought to myself 'no, I don't want to have sex' but didn't want to say anything." Likewise one cannot say "He raped me because I did not know that he was really Black/White/Asian/Filipino/Hispanic/Jewish until after sex" thus one cannot say "He raped me because I did not know he had a condom on until after sex" or "He raped me because I thought the condom he was using was intact"

