Board Thread:Fanon Canon 2/@comment-2089817-20140922015715/@comment-25152698-20140922020756

Sorry ahead of time, but I'm rather nosy and I feel like jumping in here, similar to what others have been doing over the course of this fine Sunday leading into the next week.

Kaguya awakened the third rinnegan by eating the chakra fruit, which required the shinju. Madara awakened the third rinnegan by possessing a natural rinnegan within both his eye sockets, and projecting it to the moon. As he was at the time the jinchuuriki of the ten tails, it is likely that that would be a requirement, and if it isn't, then having a natural rinnegan would be, since Obito was unable to acquire it.