(You can be any species you want just try and mention it)

you are a prince and to make kingdom with the dragon kingdom your parents forced you to marry the princess of dragon

when you go to meet her for the first time in her castle you notice she has 2 head! Both equally excited to meet you

"Are you our knew husband? I'm so happy to meet you!" The head on the right, flame said, and ember, the head on the right smiled excited at you