Headcanon that Bruce’s kids have all pulled the ‘you're not my father card’ at some point or the other and by the time steph rolled around he didn't even take it seriously
Of course, the first time dick said it, bruce cried himself to sleep. But by the eighteenth time, he was numb to it. “Dickie just eat your peas.”
The first time jason did it Bruce pulled him aside and said “i know Im not, but that doesn't mean i don't care for you jason.” by the twenty fifth time he just held up the adoption papers
The first time Tim said it Bruce laughed. “Tim, you literally forced me to adopt you. Yes I am your father.” Tim didn't bother to say it from then on, maybe muttering ‘you're not my dad!’ under his breath at the computer, just for bruce to whisper ominously ‘yes i am.’
When Steph said it, full of anger and hate and sadness and fear, bruce just followed her and said “you're right. Im not your father. And i will never be your father. But, if you'll let me, id like to be better.” After that any time steph said ‘ur not my father’ bruce would just respond with ‘never will be’
Cass said “your are my father” and left no room for argument
Babs said “ur not my dad or my father or even close to being any of it, but you are my mom.” bruce just had to accept that
When damian said it bruce just stood there for a solid fifteen minutes rebooting. Dick and jason fell out of their chairs laughing.
Duke specifically went “ur my dad! My dad! Boogie woogie woogie!’ and bruce was just like ‘bet aight.”
Crack hc: any kid who says "you're not my dad/father/parent!" To Bruce's face triggers his adoption instincts.
like those poor beavers with the water pipe