forever a supporter of the dynamic that Dick is a dickhead older brother, but only specifically to Jason.
like, i feel like Jason was the only one he got to be a proper big brother too, rather than more of a mentor/guardian figure. when Jason was around he was barely even an adult, and Jason was a little shit of a pre-teen that gave as good as he took. Dick 100% was a piece of shit to him in the brotherly sense. with all the others though? after losing Jason and growing up and being the one that had to hold everything apart every time Bruce got lost in grief/a timestream or something, he is a completely different type of brother to the others than he is to Jason, and i think it would be funny to see the others slowly start to realise how different Dick's relationship is to Jason compared to the rest of them.
like, just the little things. they're all at the manor for a weekend and Dick makes Tim and Damian breakfast, ruffling their hair and sliding pancakes onto their plates. then Jason comes in and makes himself a piece of toast and Dick instantly jabs him in the ribs before stealing the food from his plate.
he always lets the others win at mario kart, chuckling easily whenever he's beaten at any game and actually seeming more proud at them for winning than sad for losing. then Jason picks up Damian's abandoned remote and suddenly he's all focus. snatching the player 1 remote and making Jason be player 2 and the two are literally trying to shove each other off the couch with how hard they're trying to beat each other. if Dick wins, you can hear his yells of mocking from across the manor. if Jason wins and he tries to say anything at all? Dick body slams him to the ground and they're fighting for a solid half an hour.
he steals Jason's shit all the time, and yet the one time Duke saw Jason walk into Dick's bedroom to borrow a shirt, Dick clocked it from down the hall and just yelled 'FUCK OUT MY ROOM' and Jason pivoted and left without even faltering in his movement, like he'd fully expected to be denied. it's worth mentioning that that very same day Tim asked Dick if he could borrow some socks and Dick told them all sincerely that they could go in and take whatever they wanted whenever they wanted. it's just Jason that isn't allowed, apparently.
for the record i think it goes both ways, and i think Jason is also the only guy who knows how to get under Dick's skin in that Specific Little Brother Manner. like that's his big brother, his only big brother. i think the others he either views as little kids to protect or just... random guys that were adopted while he was gone that he didn't even properly meet until he was an adult and out of the house, so he never really built a proper antagonistic sibling relationship with anybody else. Dick though? he pours salt into every glass of water he sees Dick drink out of. he steals his stuff. he stands just outside the doorway of Dick's room just so that when Dick yells for him to get the fuck out he can say 'i'm not in your room, you can't make me do anything'. he snitches on him to Bruce whenever he can, and whenever he figures out Dick has a crush on anybody he relentlessly tries to embarrass Dick in front of them.
anyway i just like to think about a Dick and Jason who are the only true childhood-brother pairs, and whenever they're in the same room for more than three minutes it shows. much to Bruce's everlasting exhaustion, because seriously how are these two still as bad as they were almost a decade ago??
