You dear reader, are about to enter a world. A world with some similarities, but far, far more differences. In this world a single religion dominates the world. Not everyone prays in the same way, not everyone has the exact same believes, but they do believe all the same.
In some very slight ways, it is similar to the religions of your world. Things such as pride and greed are sins, its wrong to commit murder, and such things as humility are virtues. However one of your worlds sins, is one of this ones virtues. In this worlds religion, Lust is a virtue. Lust is how the world was born, it was what humans were created for, and it is an important part of life.
Everyone does so in different ways, but to live a good moral life, and guarantee a place in their good place after life. The way to do this, is to debase ones self. To do the most slutty and depraved things. Sex is the path to salvation, and its easy to follow. Of course, religion is everything in this world, its just the reason for how depraved it is.
(Now whom shall we follow)