The Heiresses Of Darkness

Two close friends finally become sister in laws and until the dark lord shows up. He is back, and as powerful as ever, and hears a prophecy regarding his destruction. The prophecy states he needs 2 sisters, not of blood, but of bond, closest to his death eaters, to be his right hand women and become the First Dark Heiresses. The Heiresses are ruthless, but with the help of their family and friends, they turn their backs on Voldemort and set on their quest to defeat him.