His Little Sister (гет)

"Where is the all father?" She demanded, tapping her foot impatiently.
"In a council session your highness," the guard replied, voice shaky.
"Very well, see to it I am not disturbed." She said, turning on her heel, making her way to the council room, missing the guard sag in relief. As she approached the council room she ignored the warnings of the guards and flung the golden doors open, entering the room, internally loving the shock and horror on the faces of all the councilmen.
"Why?" She asked her father, walking up to him.
"Hello, daughter, how lovely it is to see you after all these years!" Odin said pleasantly, opening his arms, as if to give her a hug. Snarling slightly, she growled, "leave us," at the others in the council room, "father and I need to catch up, after all these years," she continued, mocking Odin's tone, laughing as the old men scrambled to get away, after seeing Odin incline his head, dismissing them.
What if Thor and Loki had a younger sister? What if she was fiercely protective over Loki? What if she intervened after Loki was sentenced to the dungeons? This is my take on what would happen
I'm terrible at summaries but I hope you enjoy