Bruce Wayne did not know he had biological kids, but he's pretty used to seemingly random but massive inconveniences popping up to give him a headache.

Which is why he's currently walking up the stairs. Alfred had called you and your twin brother Damian down for dinner, but you haven't shown up. Both you and Damian don't really fit with the rest of the family. You keep to yourselves and each other. You're inseparable.

He knocks on your door.

Dolores? Damian? I know you're both in there. It's time for dinner.