A/N The first time each of Bruce's sons called him dad. Family oriented, not slash. I own nothing DC.
Dick Grayson:
It was easy to say that Batman was officially pissed off. Robin was out of his sight for ten seconds in a fight, and when Batman turned around, he was gone.
Stupid. Bruce thought to himself. Stupid and careless. He began to think back to the fight. He didn't even cry out. Did that mean he was already dead? No. He's smart. He's okay.
After searching all night, he had finally gotten a signal from Robin's tracker. Knew it. Boy's smarter than they give him credit for. An old warehouse. He'll deal with Sionis later, but for now he's content to knock around the scoundrels who thought they could take his son. Robin is by his side, fighting side by side with him, seconds later.
Now only the ring leader is left, as Robin is tying up the thugs. And suddenly there are thoughts in Bruce's mind. Not Batman, but Bruce, the father of the 12 year old they took from him.
They took my son. Could have done horrible things. Could have killed him.
And then Batman is beating him. Tunnel vision and instinct take over and he loses control. The man is on the ground and nothing he says is registering. But Robin's voice does.
"Dad, stop!" Dick places his hand on Bruce's gauntlet. "You win. I called the GCPD, let's go."
Back at the Cave
Bruce had said nothing on the way home. The only sign of emotion was the tenseness in his muscles. As they exited the batmobile, he did not glance at his son. He stalked over to the computer while Robin changed into Dick Grayson. After eating alone, he found himself lying on a couch reading a book for his English assignment. A few minutes later, his father entered and took a seat on the opposite sides of the couch.
Don't ask Grayson, it's not a conversation you want to have. But he had to know.
"Look, Bruce-" Before Dick could ask why he'd done it, Bruce cut him off.
"You called me dad."
Oh. Oh.
"Well, that's what you are right?" And Dick flashes that cocky grin with a hint of mischief that makes the JLA squirm. But Bruce can't help smiling back because this is his son and that's his smile. And in that moment Dick understands why Bruce did it.
Because he's my dad.