Some grow up never having it to loose. In any case, I take it you feel nakedness is immoral merely because A&E realized they were naked. So, just how does immorality insert itself into the picture? Where does it say they covered themselves with leaves because they realized it was immoral to be naked?
Do you think incest is okey dokey because A&E's kids committed it, and their act was never said to be a sin? Do you refuse to wear clothing made of different materials?
Not that I see it makes any difference, but you're right, I don't.
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