There's a tiny idea riding a Harley in my headš
Curvy/plus size reader, obviously (said in snape imitation)
Ok, so Jax and the crew go for a run to a nearby town, they run late and gotta stay the night, they find a cheap motel to stay at but they guys wanna have fun so they find a bar thats already open at early evening.
At said bar the guys go nuts, as usual, as Jax has to hear Tig talk about the joys of getting a thicker girl for a full half hour, when a group of new girls comes from the back door (the waitresses for the night shift), and as luck would have it there is one thick girl among them.
Tig can't resist annoying Jax a bit more and started to try and convinced Jax to at least try it once, and he succeeded.
Jax spends one hell of night with her, by hour 2 of it he's already convinced this is the best night of his life, and he has been with pros and Diosa's actresses, so this says a lot about this night.
Tig is happy to see the result of his labor the next morning when Jax shows up with the biggest grin in the world and clearly absolutely satisfied and happily sleep deprived.
A few days later and every son and their ladies knows about it, Tig couldn't keep quiet about it, and that includes Tara, who was not very happy.
One day Opie finds reader half way out of Charming, having car trouble on her way back to her town, he tolled her back to Charming to get her car fixed.
What he did not expect was for Tara to come looking for Jax while reader is at the shop and Jax himself is arriving back there from some business.
Jax sees her first and goes to get her out there before Tara sees her, and he's not very verbally polite about it, and didn't even give her time to speak, cause he thinks she's here for trouble making.
Tara recognized reader from Tig's descriptions and assumes she's here for Jax, kind like that episode with Gemma where she punches Juice's girl cause of Clay, and so Tara attacks first and asked questions never.
Jax couldn't stop her in time so reader ends up with a fist to the face that leads to a heavily bleeding nose (something broke, something burst, or worse both), Opie interferes and chews her and Jax out.
After very angrily explaining everything, including why she's in Charming to begin with (some of the waitresses needed a ride over to Diosa for their auditions and reader offered to take them) plus the car dying, Tara is horrified with herself for not even trying to know anything before punching a random woman and Jax is lost at what to do now.
Opie takes reader to the hospital, cause she won't stop bleeding and everyone is panicked about it.
Anyways Opie x reader endgame, with some hints of Jax x reader in the beginning (after the punching incident) cause Jax was dying for some more of that one night, but he does keep away when Opie says he's interested in reader.
This would obviously be set after the Gemma ep that inspired it, after Donna died, before Lila and Opie become a thing and before Tara leaves.
If, someone wanna give this idea a try, it's all good and honestly, i wanna read it.