English is not my mother language.
Kon doesn't know when it started (It probably did back then in the Young Justice's days, but it really doesn't matter anymore). Because it is here now.
This…
Compulsion.
It happens in front of people and when they're alone. It doesn't matter when.
Even when he's bigger and stronger it doesn't matter. Because even since the very start, everytime he did something wrong in Tim's standards the former Robin would just glare at him and he would oblige.
Eager to please and regretful just like a puppy in training.
And now.
Now Tim is not his team leader anymore. He isn't even part of the team. They barely see each other in a daily basis.
But the compulsion is right there. In the back of his head.
That need, to please, to know that Tim is there. And that if he needs him. If he wants him there.
He will come. He will be there.
For him. No seconds thoughts. No doubts. He will fly away and do whatever Tim wants him to.
Anything.
He had seen it. That future.
When he kills if Tim wants him to. Like nothing more than a killing machine, like a tool for Tim's plots and ideas.
He craves it.
To be used. To have a purpose. The kind of purpose that no one have ever gave him. No one exepts Tim.
And when they're together. When he has a constant use for him. To show him off in Gotham and to kiss him when he wants him. To go out in dates when he feels specialy bored.
Or when he's very, very good and they have sex.
When he's on top of him. Inside him. Rutting. Like a dog. Like a toy. Fucking but being the one fucked all the same. Handing his will and body and release over.
"Good Boy Kon" He would say petting his hair "Just like that"
"No. Don't come" He would pant and moan "Not just yet" and "Kon that's and order"
And he would wait, he would go slower. And faster. And harder.
And whatever Tim wants him to do until he gives him consent to come. Or even if he doesn't.
Because that is his too.
He doesn't know when it started. (It probably did back then in the Young Justice's days, but it really doesn't matter anymore)
Because it's easier this way. It's safer. Because it just happens.
And he's bigger, stronger. And Tim is fragile and so utterly human.
But Kon knows.
That even then.
Tim is in charge here.