The choas that would be released if and when Damians brothers find out he's dating another hero and the shovel talk that would soon be after. The thing is they already have Jonathan a shovel talk cause they had always kinda assumed they'd end up together but when they didn't they were not only shocked but super angry.
But of course they leave it alone cause they don't want to damage their little brothers friendships cause they know he doesn't have many but they notice slowly how much Jonathan and Jay start coming over.
Maybe once every other week becomes every week and then almost every day they are always catching Damian texting someone and smiling at his phone. They become confused.
Soon they start their own investigations cause is Damian dating someone? And on patrol maybe they find Damian sneaking a kiss to Jay and they absolutely loose it.
The theories just run wild!!
Jason: soooo our brothers a home wrecker?
Dick: noooo I raised him better then that!! :(
Tim: I just think it's like one of those stories with the love triangle?
Jason: I know you read wattpad and ao3 but leave it out of this
Tim: you know what wattpad is?
Cue to Damian overhearing this and deciding to be an absolute menace. I think from then on he ropes his boyfriends into pranking them by not knowing who's dating who until the batkids break down and finally sit Damian down to talk to him. Then the big reveal they were dating all along.
What surprises Damian is when money starts being passed around.
Tim: well duh *rolls eyes*
Damian is about to kill him until Bruce walks in and raises an eyebrow.
Dick: they are all dating
Bruce just walks over to the table and grabs the biggest cash pile.
Bruce: by the way Jay is a very informative young man. I approve
All the batkids in shock- :0
Turns out he had already not only figured everything out but also went ahead and gave Jonathan and Jay a fatherly talk. Well as a fatherly one as batman can.