I've come to really embrace it alongside the overwhelmingly enthusiastic response of viewers to step-family/incst content. It shows people really love it and I try to support it in others. Besides useless man-made constructs, there's really nothing that can argue with human attraction and the fact a guy can get a rock hard dick for his sister, and perform well for her and please her and make her feel loved both as a brother and lover or son and mother, and vice versa, etc., shows it's really natural and an undeniable part of human sexuality.