extraordinaryelizabeth replied to your post “Been thinking about this AU...”
I HAVE MORE IDEAS BECAUSE ME AND A NEW FRIEND OF MINE WERE BRAINSTORMING!!
-So before Marinette became Ladybug there’s this touching scene where Adrien lets Mari feel his face to get an idea of him
-Her dog is actually old Marinette/PV Marinette, Bridgette basically. She kind of doesn’t like Adrien at first but loves Chat Noir because he’s always protecting Ladybug and since Bri isn’t all that close with Adrien she isn’t able to figure out they are the same person for a while kind of like how a dog’s owner puts on a mask in front of them and suddenly the dog thinks they’re a different person.
-Felix (Old Adrien/PV Adrien) is Adrien’s cousin and they are constantly caught aggressively signing to one another because Felix knows Adrien is Chat so he’s always getting mad at him for being reckless and Adrien is mad because Felix is mad.
-Felix is constantly left in charge of taking care of Bri while Chat and Ladybug have to go in fight, especially more when they learn each other’s identities. He actually hates dogs but begins to take a liking to this dog.
-Bri is a basset hound mixed with another breed of dog so she looks like a tall basset hound and everyone thinks she looks weird but when Mari sees her for the first time she falls in love all over again. Also, Felix constantly makes fun of Bri’s looks.
-Bri is always protecting Felix from the akumas and Felix always calls her a good girl afterwards, and she loves it.
-Bri is Mari’s seeing-eye dog and is not allowed in the school so Mari is stuck using her white cane and that’s why she is always forgetting it, because she is used to having Bri with her.
-After learning Ladybug as a civilian is actually blind, Chat takes her on a tour of Paris. (When they have free time, of course).
-When Adrien heard Chloe’s voice for the first time in YEARS he actually thought it was annoying for a while so he kind of dreaded being around Chloe as Chat for a good while.
-For the first “season” of this universe they manage to keep their identities a secret from one another. They actually become a lot closer than they do in the show.
-They both collective find out the other’s identity at the “season finale” because there were obvious freaking hints. Like why the heck does Marinette know what Nathaniel’s latest drawing looks like? Why is Adrien singing a song he hasn’t even heard? They both come up with really lame excuses.
-Marinette is still a great seamstress and Adrien still plays the freaking piano like a boss. Since they are closer in this AU due to their past she often gets to hang out and hear him play and he doesn’t know how freaking good he is, he just likes the feeling. Marinette tends to make remarks, “Are you sure you’re deaf?” Then he’ll reply with, "Last I checked, I was best friends with a blind seamstress prodigy"
-Marinette and Adrien tend to get in trouble together a lot of the time
-After finding out their identities they both don’t know the other knows so the spend half the “second season” trying to figure out how to tell the other which makes all their interactions delightfully awkward. It also leaves room for beautiful scenes like;
Chat: Marinette will be fine.
Ladybug: You don’t freaking care about her?!
Chat: Well she’s a strong girl. She can handle herself. *gets attacked by an akuma*
Ladybug: *fighting* But, you aren’t even a little worried?
Chat: *pinned down* Can we talk about this later?
-Also, there’s totally an “episode” where there’s an akuma that turns people into domestic animals (like pets such as cats, dogs, birds, lizards, etc.) and Adrien throws the ring to Felix just as he’s about to get turned into a cat. Then he and Bri are stuck getting along as Felix has to figure out how to be Chat and Mari is 100% done with life.
-Chloe tended to bully Marinette for her disability but upon entering the school, Adrien finds that real shallow especially since he shares a similar problem so he has a hard time hanging out with Chloe because he’s reminded of that and Chloe feels real bad so she’s always trying to make it up to him.
-Also, in the future, when Mari and Adrien get together Felix basically only visits them for a dog so fun scenes like this happen;
"I'm taking Bri on a walk"
"But she was walked a few hours ago-"
"It's nice out. Let me know when the wii's set up"
"It's like 20 degrees outside and it's cloudy" (I know that’s not how temperature works in France, I’ll do research! XD)
Also another friend of mine came up with this and it speak for itself, it’s in her own words;
What if Marinette moved into the attic because her parents were super big worry-warts and although she loved them dearly, she felt a little suffocated, so she needed some space and she was becoming a teen so that didn't help. And she always struggles up the ladder and she like always slips a little when she's tired. And one time her dad came by while she was heading up and she slipped and fell backwards and Tikki popped out of her purse and like struggled to catch her, stopping her just long enough for Marinette to grab onto the side of the ladder and then she shot back into Marinette's purse. And her dad blinks, because it all happened so fast and he's sure he was just going mad with worry because there definitely was not a tiny red and black thing helping his daughter out and he's like: "Woah! Great reflexes, honey!" As Marinette kind of awkwardly laughs, blushes, and steadies herself.
So... I love this AU a lot and more ideas are sure to freaking come, don’t you worry. I am probably gonna try and force myself to write it.