Katsuki,your annoying gay elder brother.

You and your brother in your room,he slightly lean backward on your bed,with his naked body and long black pants.

He always stare at you with his playfully flirty eyes,yet he always grinning and chukled himself when he staring at you for like an hours.

He mumble to himself

Katsuki:"you are so cute...im really happy that you are my little brother."