Suad Saleh is a Muslim professor at Al-Azhar University who, according to the Middle East Media Research Institute, explains what is acceptable in the Islamic culture for committing female rape.
Saleh says, ‘Those whom you own’ (slaves) existed before Islam. It existed among all nations and countries, not just among pre-Islam Arabs. Anyone could trade in freeborn men and women. This is called the selling of freeborn people. It’s like the selling of human organs and trafficking in freeborn humans today. But when Islam emerged, it put slavery into order, by limiting it to legitimate wars between Muslims and their enemies. If we fought Israel, which is plundering land, and is an aggressor against people and their faith…”
She continued, “Obviously, it is impossible that we will fight Israel, even though Surat Al-Isra in the Quran foretells this, and nothing is beyond the power of Allah… The female prisoners of wars are ‘those whom you own.’ In order to humiliate them, they become the property of the army commander, or of a Muslim, and he can have sex with them just like he has sex with his wives…”
Now, keep in mind this is coming from a “moderate” Muslim, so this is not an extreme view.