Seeing the difference?

Eeeyup, these two characters have nothing to do with each other and Octavia is definitely not related to Pinkie, the writers have confirmed it in the past. :)

They never were...

It was this joke someone created, and many people thought it was funny. 당신 guys killed it now.

I already knew! What kinda 질문 is that? They don't even look alike!

as Dragon-88 said: They dont even look alike

and yes,i know that Tavi is NOT Pinkie's sister they look nothing alike except for their eyes and 코트 which are in different shades...? and in fanfics,Tavi has a mother who..doesnt love..her cause she turned out to be an earth 조랑말 not a unicorn..they live in Canterlot and has to be all refined and stuff

yep they are differnt Octavia is 더 많이 uptight soo if she was pinkies sister why isnt pinkie uptight