From a pamphlet entitled “Question and Answers on Female Slaves and their Freedom” that was handed out by ISIL to the residents of n Mosul, the Iraqi city now under control of ISIL. Thousands of “non-believers” have been taken as slaves in the Middle East by the militant Islamic group:
If she was a virgin, he (the owner) can have intercourse with her immediately after the ownership is fulfilled. If she was not a virgin, her uterus must be purified (wait for her period to be sure she is not pregnant.)…It is permissible to have intercourse with the female slave who hasn’t reached puberty if she is fit for intercourse. However, if she is not fit for intercourse, he (the owner ) can only enjoy her without intercourse.
Read one translation here.