No.406123
Brother-sister incest is basically the same thing as being in love with a childhood friend. Incest is only bad because of deleterious genes which only becomes problematic with repeated generations, which statistically, isn't likely to happen naturally because mutual attraction between random people is inherently rare. Thanks to advances in genetic sciences, it's likely that risk factors for deleterious genes can be mitigated by doctors in the near future. Basically, what I'm saying is consensual incestuous relationships between consenting adult siblings is not that bad and shouldn't be illegal. If I had a sister who I was attracted to, I would like to marry her.