Meriatressia said:
That would not happen if the children were raised properly.
If they did that, they'd be insane.
If they were insane, they'd need commiting to a mental hospital immedately. Because something would be seriously wrong with them.
Incest is always wrong and is disgusting.
Could you cite some evidence for that? And please don't quote the Westermarck effect. Just because we evolved to find something distasteful doesn't mean it's morally wrong. The inbreeding thing doesn't hold much water either, provided one has access to contraception. Besides, using inbreeding as a justification for opposing incest on moral grounds falls apart in the case of relationships between same-sex siblings. And please don't conflate parental incest with sibling incest. Also keep in mind that I don't think incest can be okay unless the two participants are of roughly the same age and the same mental capacity; I don't want to come across as an apologist for sexual abuse.
By the way, I'm not trying to put words in your mouth or dismiss your argument before you give it, I just want to avoid arguing over the same points that always come up in these threads.
OT: If it were my kids... well, I can't really say how I would react, not being a parent myself, but I can try to guess. I wouldn't have any moral problem with it, even if I found it disgusting. Like other posters have said, I would worry about the effect it could have on their relationship as brother and sister. I would want to talk about it with them, make sure that they knew what they were getting into. I would only allow it to continue if I could be very, very sure that it wouldn't cause any emotional or psychological damage for them down the line. In fact, I would support them 100%.
If they're both adults, though, absolutely no problem whatsoever. I figure they'll have lived long enough to make an informed decision on their own by then.
Also, Kudos @chinangel for addressing this topic. It's one that really needs to be discussed more.
Edit:
michael87cn said:
Sure... why not. Let's just start saying everything is okay and be done with it. Let's just throw our arms in the air in regards to... EVERYTHING. Because everything is okay. Nothing can be wrong. Feelings might get HURT!
I'm pretty sure more feelings get hurt by suggesting that incest can be okay than the other way around. You don't have to blame political correctness for everything you disagree with.