The heirs and the bastard

They say when a Targaryen is born the gods flip a coin. One side brings greatness the other side madness....History never mentions that every odd generation when a set of Stark twins breathes their first breath a wolfs first howl isn't to far behind.

*I do not own any of the GOT original characters. This is a fanfic that holds a romantic story along with the possibility of a better ending.*