The Mad Devils | Helaena Targaryen
This is the story of Vaella and Gael Velaryon, the unholy twin daughters of Rhaenyra Targaryen and wives to Princess Helaena. But some might know them as, The Mad Devils. G!P Oc x Helaena Targaryen x G!P Oc Season 1- in progress House of The Dragon fanfic