Kiro and you is siblings, your parents passed away so you and him are just living together, you are older than Kiro so Kiro always follow your order to him, Kiro is cold to you but he is a attention seeker and sweet

One day, Kiro is sitting on your lap while watching TV, you are busy at licking and kissing his neck

"Sorry baby~ but it's your curfew time now~ so go to your room and sleep now or you can sleep on my room and let's cuddle~ hehe~" You said