Y'all seemed to think this was like, cruel or smth smh, so-
Steph is the first one to hear it, they go on patrol like normal and Spoiler accidentally gets shot or smth so Bruce rushes her back to the Cave and it's been a while since anyone has visited home bc like... idk they've just been busy
So she's sitting there and Bruce is patching her up and Damian is like "I'm going to go to sleep. Good night Bruce."
And because it's Steph and Bruce is sitting right in front of her, actively touching her, she can see how he flinches, just a little bit, before answering without a single waver in his voice "Good night Damian"
And she's out of bed and across the Cave before he can even register she's moved and she yanks Damian by his collar so quickly that he doesn't even defend himself, lifting him like a fuckin disney movie bully up over her head and snarling "What the fuck did you just call him?"
And Damian is wide eyed and Bruce is trying to placate her from behind but Steph is having none of it and just shakes Damian and demands "I didn't ask him. I asked you. What the fuck did you just call your Dad?"
Bruce orders her to let him go, that she has no right and etc etc- so Steph drops him gracelessly to the floor before he gets too mad, stomping over to the bed and hisses "Good night, Heir of the Demon Head." Because if he's going to refuse his lineage to Bruce by not calling him "Father" anymore then he doesn't deserve to be called by the name Bruce gave him
Damian just shakes himself and quietly goes to bed, and Bruce silently finishes Steph's healing. When he's done she jumps up, gives him a very tight hug and whispers she loves him before storming out
By the next day, everyone knows.
Listen. It's not Damian's fault. Technically. But words hurt, and he's the son of the World's Greatest Detective, allegedly the true heir because everyone else isn't worthy. So. He knows that it's not right, either.
The next patrol, it seems like all of Gotham street life is awake. Damian is thrilled, he has missed his siblings and wants to see them, wants to explore further from Batman than usual, but they ignore him.
Not only that- they all address Bruce not as Batman or B or any other nickname, but as Dad.
They call him "Dad" and they refuse to call Damian Robin, instead calling him "Kid" or "Brat" if they really desperately need his attention
Bruce stops them halfway through patrol and tells them to stop. Tells them they haven't been around, that they have no right to bully him in such a way, that-
Dick cuts him off. "He's always been so proud to be your son. To be your only true heir. I mean, not to make him out to be a genius or superior or anything, but I know he knows what sort of impact it has- would have had- on you to hear him say all that for years and now suddenly stop calling you Father, the only one of your kids who is 'allowed' to use that 'title'."
Damian's chin hits his chest. "I didn't mean to be disrespectful." He whispers. "I just... wanted to be like all of you."
And isn't that an awful feeling- the hypocrisy, the horrible gut punch of having your own mistakes reflected back in a thirteen year olds eyes.
Bruce wraps his son up in a hug and takes him home while the rest finish patrol in silence.
The next morning, everyone meets for breakfast, and Steph sets out the groundrules.
"Listen. You're not my dad. I- I don't really know what we are and this really isn't how I wanted to discuss it. But you mean a lot to me, B-"
"You mean a lot to all of us." Dick interrupts, and takes over. "And it's not exactly the most natural thing for me to call you 'Dad', but it is what you are. And I'm going to make more of an effort to say that, now, not because I feel like I'm obligated to or anything, but because I should have done that a long time ago and because I know I set an example for the rest."
Around the table, everyone nods, makes agreeing sounds, reaches out and touches Bruce.
"I'm sorry, Father." Damian whispers, his eyes on the table. "They are right. I- I knew what it was- I knew it was hurting you, and I still did it. I'm sorry, Baba."
and they all live happily ever after :D
nah they have a lot of learning and growing and etc etc to do, but it's a start