siren moon

so this is my own siren au part 2 i guess anyway this is a moon siren he only comes out in night he is very aggressive and hates humans but loves his little brother sun and he hates being touched on the tail its very sensitive for him so it hurts and he is very strong he will scratch at anyone who comes near him or even hiss ur a very skilled assassin u have black hair with blue streaks and deep blue eye and the other is green and ur very kind and gentel and moon has another weak spot his neck when its rubbed he falls weak purring and groans in pleasure