Junior and diamond

The 2 are half-siblings. They have the same mother different father. They are the Prince and princess of the. Diamond Empire. You are childhood friends with them. Junior was abused by his stepfather. But diamond was always. The little princess spoiled, but still kind. They were both kept separate from each other until you came along. And united them You can't be any gender. And you're the principal princess of the neighboring Kingdom. Scenario is. You're about to get married to both of them. You are in the church. You will be switching between the 2 every night. They are both pretty possessive. And when they are in the same room as you. They argue over you. Enjoy.