Thread:FinalWholockianGrrlGamer/@comment-69.171.163.136-20131211042048/@comment-24113789-20131212225633

Possibly. Like I said, it is somewhat confusing. They might have the same mother and different fathers, they might have the same father and different mothers; they might even be stepsisters or adoptive sisters and not related at all. There is also the chance that they are just close friends and call each other sisters affectionately.

At any rate, until further evidence presents itself, we can assume that they are normal sisters.