I 'm looking for stories like this:

・A western woman is kidnaped to an African or Arab country,and trained as a sex slave.
・She is kept completely naked all the time,forced to parade in the town.and ashamed of it.

I read Lia Anderssen's Bush Slave series and Ian Smith's Oasis saga( I seriously want to read the sequel of Bush slave2).
If you know a story of the same type,please tell me.