More Islamic Knowlege from Islam Q&A.
"It is not permissible for her to rebel against him or to withhold herself from him (refuse sex), rather if she refuses (sex with) him and persists in doing so, he may hit her in a manner that does not cause injury, and she is not entitled to spending or a share of his time...""...Similarly a slave woman does not have the right to refuse her master’s requests unless she has a valid excuse. If she does that she is being disobedient and he has the right to discipline her in whatever manner he thinks is appropriate and is allowed in sharee’ah".
Wow slaves! (where can I join the nearest caravan raid?) ...in the 21st century! It has been a while since I was in the Middle East however, I guess if you are an infidel you had better warn the Philipino maids!