i don't know whether it's true or not but it's a pretty well known idea that perversion is relative. adultery doesn't give the same thrill for a man in a society where adultery is normal as it does in one where it is not. obviously the thrill of the chase is the same either way, but the specific thrill of doing something naughty is relative to how naughty it is in your mind, not an absolute external standard.
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