JayTim omegaverse AU where Tim presents as an omega when heās stalking Batman and Jason-as-Robin. Jason finds him collapsed on a rooftop and tries to help him but the proximity triggers his own presentation as an alpha. From there things go to hell in a hand basket and they ride out their first heat/rut together. In the immediate aftermath, once they have both recovered enough presence of mind, they agree that this is no oneās fault but it doesnāt stop Jason from feeling guilty about taking advantage of Tim so he escorts Tim home (in the process finding out theyāre neighbours) and asks if thereās anything that he can do for him to make up for whatever the hell just happened.
Thereās a lot of trauma to unpack here for the both of them but Tim is barely a teenager and Jason has emotionally repressed Batman for a parental figure so they just mutually decide not to mention it ever again because if you pretend it never happened then it canāt hurt you right? (Wrong.) Anyway, Tim tells Jason that if he really wants to do something for him then maybe he can just not tell Batman that Tim was on a rooftop at night, pretty please? At which point Jason, horrified that a boy Timās age is running around on rooftops unsupervised in the most crime-ridden parts of Gotham at the most crime-infested time of the day, makes it his personal duty to figure out why Tim does this and also how he can convince him to NOT do this. What he did to Tim was wrong on so many levels but oh god, what if someone so much worse found Tim instead? He agrees to Timās request on the condition that Tim carries a beacon at all times during his nighttime extracurricular activities.
Jason brings the beacon over as soon as possible, which turns out to be the next day after school (as Robin of course), and the sight of Tim alone in a giant house compels him to stay for a while, and a while turns into the rest of the day. Tim shows off the photos heās taken of Batman and the Robins, and Jason is reluctantly but appropriately impressed by Timās stealth.
A friendship grows between them.
And Batman grows too reckless.
And Dick refuses to be Robin again.
Except he doesnāt. Not really. He wears Jasonās Robin suit for a very short time before random bouts of nausea take him off the field. But Batman is still beating the shit out of petty criminals and Tim is desperate to help, so he allows Alfred (bless him) to call him a discreet doctor to ensure that his illness is not due to anything he was exposed to while Batman-wrangling before heās allowed back on the field. Tim just wants it over and done with quickly so he can get back out there andā
Heās not allowed to back on the field.
Heās holding a little black-and-white picture of a literal human growing inside him and he is absolutely benched until there is no longer a literal human growing inside him.
Doctor Thompkins lays out his options, is brutally honest about how his body (too young, too small) will handle a pregnancy (not well), and asks if there is anything he wants to tell her (if thereās anyone Batman needs to put in jail for touching him). Tim doesnāt have long to consider his optionsāheās nearly too far along for most clinics to be comfortable performing an abortion (although, given his age, they might be sympathetic enough to bend the rules if Doctor Thompkins canāt perform the procedure for him).
He decides to keep it, a parting gift from his friend Robin to be cherished beyond his death. There is a difficult conversation with Bruce about the childās father (no, you canāt arrest them, theyāre already dead, no, Iām not defending a heinous rapist, itās your goddamn son, Bruce, this is your grandchild). An unforeseen but extremely welcome consequence of this is that Batman starts pulling his punches, now that he has something to live for again. He looks only half-broken now and he offers Tim a room at the Wayne manor when he finally learns about Timās extremely absent parents.
(Tim worries about how to break the news to his parents until he no longer has to worry about it because his mother is dead and his father is in a coma and god he wanted to avoid having that conversation with them but this wasnāt how he wanted it to happen.)
Properly benched now for the foreseeable future, Tim picks up remote vigilante-wrangling instead (from Babs?) and makes headway in some cold cases. He pulls out of school to be homeschooled instead, keeps out of the public eye, and generally avoids leaving Wayne manor because a thirteen-year-old pregnant omega living alone with an adult alpha (and his butler) is a Very Bad Look even for Brucie Wayne and Tim would rather not be known as Bruce Wayneās child bride thank you very much.
Life proceeds in this manner, the child is delivered by Caesarian with very little fanfare. It is, unfortunately, very difficult to hide the presence of a whole infant. The public settles on the theory that the child is Bruceās illegitimate son from one of his many dalliances and Tim allows the misconception to propagate simply because no good can come out of him, all of fourteen, publicly claiming his child. But it still stings, just a little. He made this child, held him safe in his womb for eight months. He puts him to bed and nurses him and loves him so much but nobody outside the manor will see it.
Tim bursts back into society when heās officially adopted by Bruce. He refused to register his son as Bruceās (it takes some extremely deft work by Oracle to file the appropriate documents for Timās claim on his child to be legally valid without alerting the press) but he also understands that Bruce wants a legal connection to his grandchild, so he becomes his sonās dead fatherās legally adopted brother. Itās a mess, but at least people who should be are allowed into hospital rooms. Itās not like it will matter, right? Jasonās dead, right?
Jason is very much not dead and very much bewildered by the presence of a baby Wayne that isnāt Damian and it completely derails his plans to exact revenge on Bruce for not killing the Joker. It fucking hurts to see that heās been replaced by not one but TWO new children but at least they arenāt Robin. At least no one is Robin. At least one of them is Tim, his lonely friend who deserves a family. He returns to Gotham, heads to Crime Alley, becomes Red Hood, and buries himself in shooting out enough kneecaps to push Bruce and Batman from his mind. That was another life. Heās fucking furious at Bruce and his replacements but god the baby has the same curly hair that Jason did and Jason canāt help but think that Bruce might actually have missed him, at least a little.
But probably not enough to love Jason as he is now, full of anger and rage and impulse to hurt hurt hurt the people who hurt others. He channels it all into cleaning up the Alley, perhaps more aggressively than Batman would (should) have, but Batman doesnāt give enough of a shit about the Alley to know that what heās doing isnāt enough and itās up to Jason to get his hands downright filthy if he wants to make any changes around here.
Tim notices Red Hood, because of course he does. And it takes him no time at all to realise, oh, thatās Jason. Thatās Jason.