Rich pregnant socialite: So we went to this clinic and let them manipulate our genes so we're 100% sure our child won't have any disease, he will have my hair and his father eyes and so much things we did for him! And you Bruce ?
Brucie: Found em in the trash. Except Tim, he found me in the trash.
How small must the world be for both Bruce and Tim to witness John and Mary Grayson's deaths
Or for 10-year-old Duke to crack the Riddler's puzzle before Batman swoops in and saves the day, long before his powers came into play
Or for Sheila Haywood to leave her son only to end up assisting his killer a decade and a half later
Not to mention the popular fanon concept of Jason knowing baby Damian in the League of Assassins
Now imagine how many other invisible strings could've tied them together
Like what if Tim and Jason went to the same school when Jason was Robin but all they shared was the occasional bump and "excuse me" in the busy halls
Or what if Babs was a tutor and helped an elementary-aged Steph finally understand her homework only for the Browns to cancel after a couple sessions because they couldn't afford it
What if the first person to buy Cass a hot meal was Kate on one of her travels
What if Alfred witnessed young Selina shoplifting groceries but chose to turn a blind eye
What if Jason lived on the same streets as the Row siblings and gave little Harper tips on how to use tools and defend her brother
What if Steph and Duke shared the same school bus, only he sat in the front while she was toward the back
What if the first person to teach Tim how to tie his shoes was Bruce at a gala because Jack and Janet were busy talking to someone important
What if Bette did a DNA test for fun and found a connection in Nanda Parbat but just assumed the results was faulty because she knew her whole family, right?
What if 8-year-old Dick, the day before his parents died, stayed at a cheap hotel near Crime Alley and found 4-year-old Jason wandering alone and said, "I'll be your big brother for tonight"
What if the universe knew they were made for each other and wouldn't rest until they realized it too
Gift giving: Bruce is busy being batman and what not so he doesn't really have time to spend with you, also he's pretty closed off with his emotions so I can’t see him giving words of affirmation so he probably just makes up for not being with you a lot by sending and buying you lots of expensive gifts
Dick Grayson
words of affirmation: When he's busy protecting Bludhaven he’ll send you cute messages whiles he's working
physical touch: after he gets back from it he’ll just hug you until you both eventually fall asleep
Tim drake
gift giving: like Bruce is pretty busy so will also just send you lots of mostly useless expensive gifts
physical touch: won’t out right ask you for physical affection but secretly craves it
Jason Todd
quality time: just likes having you presence there while he's doing things like reading or working on case files
physical touch: like Tim he craves physical affection but won’t ask
Damian Wayne
quality time: just generally likes hanging around with you even if you’re just doing stuff in comfortable silence
Gift giving: probably will occasionally buy you expensive gifts but I can also see him giving you paintings he's painted or if he goes abroad he’ll ll bring you back something
physical touch: probably won’t ask, maybe would motion for you to do it by holding out his hand and stuff but would kind of expect you to do it and if you didn’t he’d get all pouty
Duke Thomas
words of affirmation: loves to tell you how much he loves you is kinda cheesy and if you do it back he gets really giddy
acts of service: if you ask him to do anything he’ll do it no questions asked
Cassandra Cain
Acts of service: Cassandra isn’t good at telling you how much she loves you so she shows it through he actions
Physical touch: if your walking together somewhere will hold your hand the whole time. Will come to your apartment after her patrol and after you patch her up will hold you for the whole night until you have to leave for work/ school.
Stephanie brown
Words of affirmation: like Dick she’ll send you messages during her patrol and will also compliment any outfit you wear
Quality time: just randomly shows up to your apartment to spend time with you even if it’s during her patrol.
Physical touch: if you are both together chances are she’s either hugging you or holding your hand
Barbara Gordon
Quality time: just likes spending time with you. Will invite you to stay in the clock tower with her while she’s working as oracle she finds your presence comforting and relies on you to tell her to take a break from the computer
Acts of service: she already does lots for the batfamily as oracle so if you asked her to do something she’d be on it for you
Kate Kane
Gift giving: will leave sweet little gifts at your doorstep
Harper Row
Gift giving: will make gadgets for you as gifts
Quality time : just like’s casually hanging out with you maybe playing video games together or something
Selina Kyle
Gift giving: will gift you stuff she’s stolen or if you say you like something in a shop window or something will go out and steal it for you
Words of affirmation: like Stephanie she’ll compliment all your outfits and tease you a lot
Physical touch: when she comes home from being catwoman likes to fall asleep in her bed with you
Helena Bertinelli
acts of service: you ask her to do something for you and she’ll do it
I'm thinking of setting the Tim discovers three siblings story in a Marked AU.
Essentially, in this AU, all the batfamily members are marked from birth as they each have a birthmark in the shape of a bat between their shoulder blades.
This is due to a curse on Gotham which states that a select few people are chosen to protect Gotham with a bat birthmark.
If they try to shirk their duty by leaving Gotham or otherwise not being a vigilante, they will face immense bad luck and circumstances will force them to become a vigilante.
It would help explain why so many batkids were already vigilantes when Bruce found them.
It's a story of how the batfamily formed thanks to being cursed.
They do have some benefits from being cursed, namely higher endurance, intelligence, and pain tolerance, along with an inability to stay dead.
Because even in death, they have a duty to Gotham.
bruce wayne (emotionally repressed autistic dad/tired but loving/"i'd die for you. ask me to die for you.")
alfred pennyworth (beloved grandfather and backbone of the house/"cool you were in the circus too alfie?" "a different type of circus master richard"/the most flexible on the whole no killing rule thing)
dick grayson (embarrassing "stay silly" older brother/eldest child/self-titled "bruce's little angel")
barbara gordon (adopted bruce more than he adopted her/this family would not survive without her it support/only one who knows how to work the router)
jason todd (the try hard wanna be cool accidentally cool but not in the way he meant brother)
tim drake (gifted child syndrome overachiever middle-child-and-mentally-ill-about-it bisexual nerd)
damian wayne (asshole baby man with a heart of absolute gold and a closet full of swords/tiny and feral/why does he have so many swords??)
stephanie brown (the goldilocks of the family/showed up one day and refused to leave/heartbreaker/know-nothing know-it-all, "get your feet of the furniture, stephanie")
cassandra cain (the darling daughter/autistic queen/"cuddled nicely" and "bit my ass" rolled into one/don't look directly at her too long or you'll fall in love)
duke thomas ("finally someone normal around here"/"oh no he's just as bad"/the day shift/probably does way too many light related puns)
selina kyle ("hot milfs in your area"/bruce's lover on the down low that literally everyone knows about/enamored by his autistic swagger/not married to bruce but would take the kids in the event of divorce)
kate kane (fucking rad lesbian wine aunt/kicker of ass, spoiler of nephews and nieces)
harper row ("alfred where did this punk child come from?"/"SHE'S GOTTA GUN"/best music taste out of any of them/once turned a lawn mower into a drag car/it was awesome)
lucius fox (other grandpa/ twead wearing dad/"bruce you need to pay your taxes"/"bruce getting shot point blank in the back is not advisable"/"bruce the hague tends to frown on child soldiers")
lucas fox (conceivably he should be smarter than getting mixed up in all this/still got mixed up in all this/"don't you think batwings a little too...on the nose?" "says the guy that calls himself batman")
helena bertinelli (cranky cousin that is beloved by a few and feared by all/"why doesn't her boyfriend have a face?"/"SHE'S GOTTA CROSSBOW!")
harley quinn (bisexual vodka aunt that's really just bruce's friend from college/has invited herself over for every hanukkah ever since finding out bruce is jewish too)
Powerful superheroes, supernatural beings, aliens from other planets, most of the human population, Gotham, powerful supervillains, fearing or respecting Batman:
Batman’s kids, fellow Gotham vigilantes, putting him down, undermining his authority and downright disrespecting him any chance they get: