Good for you to share. Helps push this conversation 'down the road'. There's no way I or as far as I'm concerned anyone else can cast judgment upon you.
If it weren't for that sniggling question about the issues that surface having to do with the resulting complications from sexual relations amongst cousins, etc,seems like there shouldn't be an issue. As for any biblical stance, right , wrong because the bible says it, don't even get me started.
Here's where we might apply the old: live and let live. Oh yeah, and the genetics thing which I know nothing about but should be cleared up by someone 'out there' who knows about that. Other wise, be at peace, be well.