———the chances of her being a prostitute are slim.———
You have noted the problem.......she has Slim. The Slim epidemic permeates the society, Islam or not. Promiscuity is culturally endemic.
You have zero clue about West Africa or indeed any part of modern Africa.
Rape is pandemic - even for males. HIV is not proof of promiscuity. Africa is rapidly returning to its pre-european colonial period norms.