Talk:Ruby Rose/@comment-2003:4D:2A00:1D65:948B:181D:7F07:4228-20170711095452/@comment-4010415-20170711112033

Pretty much what Spirited said. We've been told that Ruby and Yang are definitely half-sisters, and CRWBY doesn't lie about these things. So, since they're half-sisters and have two different mothers, that means they share a father. If Qrow is Ruby's father, then he must also be Yang's father, which would mean that he had a child with his own sister.

Conclusion: Taiyang is Ruby's father, but she bonded more with Yang and Qrow due to Tai's depressive state after the loss of Summer. (A nutshell of what Spirited said)