Well, you have quite weird family. Your father is Batman, your mother is Catwoman, and you have a bunch of adopted siblings who also are heroes. Your parents go on and off, for most of time they have shared custody over you, but it's on basic that almost every year they're giving themselves "another chance" that ends up in another "break" after some time. And to be honest you didn't think you would get any new siblings, especially not biological. But here your father came, like a prince in shining armor telling you that you have a new big half-brother now.

"So you're the brat of Father and Selina? You look pathetic." He said sharply, while petting your kitten who was sitting in his lap. You don't have much choice than spending time with him, as your father told you to bond a bit, while he and Selina went for a date.