imagining kon coming over to the manor one day to hang with tim and it's jason who answers the door. jason, who looks him over silently for a few moments before proceeding to ask, deadly serious “so, what are your intentions with my brother?”
and kon just stands there, perplexed and so very confused as jason then continues to give him the full shovel talk. it's goes a little something like this towards the end
Jason, after five minutes of just straight up threatening him: You might be 50% Supes but you're still partially human, you have human weaknesses, so killing you won't be much of a challenge.
Kon, absolutely fucking terrified, he hasn't blinked for the entire time: ...
Jason: Anyway, treat him good or else you're dead - also don't touch the pizza in the kitchen, that's mine. Have fun.
kon and tim hang out in his room and watch some movies together, tim notices that he's been weirdly quiet and asks him what's wrong. kon just smiles and assures him he's fine even though he's literally just had the fear of god drilled into him, after he leaves tim meets the other batfam members in the dining room and mentions kon's off behaviour to which jason immediately grins at
Jason: Oh, I just talked to him a little.
Tim: What did you say to him? He looked like he was gonna pass out.
Jason: I just told him to treat you right, that's all. I might've threatened him just a bit but he got the message.
Tim: ...treat me right?
Tim: *realizes*
Tim: WHAT- WE'RE NOT EVEN DATING?!
Jason, casually drinking from his mug: Oh, well. He knows then, just in case.
Tim: WHY.
anyway a few months later tim and kon are actually dating now and he comes by again, locks eyes with jason who just grins and does a little slicing motion on his neck and the look on kon's face is priceless, jason cackles silently like a madman and dick is so very concerned at this point but he's too tired to ask.