User blog comment:Morganaforever/Are Arthur and Morgana siblings after all?/@comment-5036924-20120105204905

Pretty sure I've mentioned my doubts on this thing before, but I can never resist commenting. ;D

I would question your saying that Arthur isn't Uther's son. Your explanation could work and it IS perfectly possible that Uther didn't actually play any role in conceiving Arthur and is therefore not biologically related to him, but it's also perfectly possible that he was still conceived in the natural way, only with Nimueh's magic ensuring that Ygraine would fall pregnant. As in, it's completely ambiguous to what extent magic created Arthur, though I would think it more likely that it would still require two parents, i.e otherwise Arthur would be... I don't know, genetically identical to Ygraine, yet male?

I would be more inclined to doubt whether or not MORGANA was Uther's offspring, although for the sake of the plot of the show I get that we're supposed to accept it unquestioningly and it's not going to change. But all we have is Uther's say-so that he slept with Vivienne and then she got pregnant, but how can he be sure the child was his? She could have slept with her husband (or was he away somewhere?) or someone else, and particularly if it was just the one instance there's plenty of room for doubt.

It is interesting and I still have a tiny, pointless hope that they'll reverse the sibling thing, though I know it's never going to happen. xD