Find your tribe in a Sea of Creativity
Ok, hear me out. An AU where Janet Drake is best friends with Lex Luthor, Bruce Wayne and Oliver Queen.
They met in school, and she's a high society girl, not expected or allowed to be much more than a pretty face, but there's this trio of smart idiots (they did all sorts of stupid stuff at school, but they are overall very, very smart), and they're in all sorts of cool classes and extracurriculars, and she wants to learn
So, she snakes her way into the group with well-timed looks and blushes. They eventually include her in all their activities, and so she learns all sort of stuff that she usually wouldn't be allowed to learn, because they help her keep it in the down low. No, she's not taking classes with them, she's being a proper lady and cheering her smart friends on through the oh-so-hard classes.
At some point or another, they all develop a crush on her, fleeting as it may be (they're hormonal teens and they're required to flirt, it was bound to happen)
They flirt publicly, as it keeps the media from pressuring them into relationships— or so they thought. It backfires when they're adults, the media is demanding Janet settle down and stops leading all three of them on. But there would be a scandal if she picked any of them, so she picks Jack, someone who doesn't love her or she loves, but someone desperate enough to climb the social ladder to care if he loves his wife.
When he's not allowed to flirt anymore, that's where Bruce realizes that he actually liked her.
When Tim comes along, and Janet has to go on trips, she leaves him with her trusted friends. So, Tim learns a lot from his Uncle Lex, learns to shoot a bow from his Uncle Ollie, and loves staying with his Uncle Bruce and his children. He figures him out far too easily and does become Robin when Jason figures he's ready to pass on the mantle to his little brother (because they're brothers. Tim spends a lot of time in their house)
Bruce adores Tim, he really does. It just kinda hurts, that he's Janet's kid, but not his.
Eventually, Janet divorces Jack, and she gets to spend a lot more time in Gotham. But by now Tim is as much Bruce's as he is Janet's, so they co-parent the gremlin that is her son, which leads to a lot of time with Bruce.
Bruce treats her better than Jack ever did, and she trusts him far more. They have the memories of years together. Eventually, Bruce tells her the truth— that he never truly moved on from his best friend.
When they marry, sure it's a media circus, but also not a surprise.
She's also a good mom, to Tim as much as to Dick or Jason.
When Jason finds out Catherine is not his mom, sure he gets curious, but he has a mom already, he's happy. He does want to meet his bio mom, but he agrees to do so safely, not go alone. Fine, B, you can come with.
Joker never happens. Jason is disappointed when he finds his mom is not at all what he expected, and he has a much better one at home.
Eventually, when Damian comes into the picture, he's snappy with Janet. "you will never be my mother, you harlot!" but Janet simply puts a hand on his shoulder and speaks calmly, yet sharp as the blade he threatens her with
"You will not speak to me like that, boy. No, I am not your mother. But I am married to your father, and I hold the authority as such, so you will go up to your room, you will cool down, and you will never threaten or insult me again, or you will be grounded."
"You can't do that!"
"She can. She has my full permission to discipline my kids, Damian. In this house, she holds as much authority as I do." Bruce interjects
Damian, begrudgingly, learns to respect Janet, and eventually he does see her as a second mom
The amount of times Oliver or Lex visit the Wayne-Drake household is absurd, but sue them, they like their friends. This leads to a lot of chaos, because every time Oliver visits so does Roy, and Roy hangs out with Dick and Jason, while Damian sticks to glaring at everyone.
Meanwhile, they dote on Tim, because they sure as hell have a favourite nephew, and it's the one they watched grow inside the belly of one of their best friends, the one they all changed the diapers of, the one they've taught a lot of skills to, the one they helped raise in a way they never helped raise any of the other Wayne boys. They don't even try to hide their preference. Now, of course they like all their nephews, but it's always hilarious because when Tim is around his uncle Lex, he's ten times the evil mastermind he generally is, and Oliver encourages it, simply for the chaos, and so does Janet, while Bruce is downright terrified of the idea of Tim as a villain (everyone is)