There Are A Lot Of Fics About The Justice League Finding Out About Batman's Children Via A Series Of

There are a lot of fics about the Justice League finding out about Batman's children via a series of circumstances leading to Nightwing joining the League (usually against Batman's will)

and I LOVE this trope, don't get me wrong, but I'd like to imagine a situation where it doesn't happen like that. I want a situation where Nightwing joins the League, but he and Batman play it off well enough that the JL doesn't put them together. They notice that they work well together, sure, and Batman seems to trust Nightwing easier than the other new members, but no one questions it because Nightwing is good.

And the JL reaches a point where it's been months or even years and they still don't know.

Until Nightwing gets hurt. They've seen him hurt before, but he gets hurt. Bleeding out, affected by fear toxin, whatever, the point is, he's in bad shape. And Nightwing - strong, crooked grin, happy facade - screams. He screams for his dad - a word that he never uses, but that doesn't matter now, because he's scared, and he's hurt, and he just wants to go home.

And nobody knows what to do. Every single League member very quickly realizes that they know nothing about this guy. Everyone wonders about Batman because he seems so mysterious, but Nightwing always seemed so open, and it's only in that moment that they realize they have no actual information on him.

But that only last for a split second, because, of course Batman reacts first. He runs to his side and starts to stabilize his injuries while assuring him in a voice that they've never heard before, a voice that is distinctly not his Batman growl, that he's right there and it's all going to be okay.

And Nightwing... well, he stops calling out for his father. And he doesn't stay in the watchtower infirmary after that. When they ask Batman where he took him, he just tells them home.

Nightwing's back a few months later, and that's when they start asking him if he's really Batman's kid, and he just smiles the same crooked grin and says, Of course. You didn't know?