Demetri being your sibling includes:

   • Random races through the halls.

   • Staring contest

   • Partners in Crime
        - Can't even begin to explain how many times y'all host parties before the masters started to catch on.

   • Though Demetri is the oldest out of y'all, he decided not to be the "third parent" instead being the cool older sibling.
        - When y'all were human he would cover for you when you would sneak out.

   • He integrates/threatens every potential partner you bring home.
        - "What is your purpose with my Y/n?"
        - "You break their heart, I'll make sure you're never found, got it?"

   • Sometimes you both just look at each other and smile because you're on the same wavelength.
        - "Wanna go terrorizes Afton?"
        - "With a glitter bomb!"
        - "Get the stuff."