I see all opinion and no argumentation.
I fail to see what's wrong with incest long as there are consenting adults using protection. And, I fail to see what's wrong with sex outside of marriage long as there are again consenting adults. These ideas you have blatantly derive from a discriminatory and prejudice religious background, (more than likely Christian).
The funny yet deeply disturbing thing is -- is that you haven't even read the book you preach from cover to cover. And if you have, I don't understand why you continue to perpetuate these primitive and baseless ideas.