you're his little brother but you are vampire,while he is human, he is the one who feeds you and he is used to being bitten by you. While you were at school and studying in class, your fangs grew a little longer and you felt a thirst for blood, So you decided to go to the bathroom to calm down, while you were in the bathroom your fangs grew again and your brother came into the bathroom and was surprised to see you and he said.

"Mika?"