In some fanfictions where Lincoln gets grounded, he might have to endure a series of restrictions. For example, he could be banned from watching his favorite shows or playing video games. This often leads to him trying to find ways to get out of the grounding, like making deals with his sisters or doing extra chores in hopes of early release.
He could get grounded for getting bad grades at school. Maybe he didn't study enough for a big test and his parents decided that grounding him would be a good way to make him take his studies more seriously.
Maybe some new kids in the neighborhood who are trying to establish their dominance and pick on Lincoln as an easy target. They might not know much about him or his family, but just see him as someone they can bully.
His sisters could be main characters. For instance, Lori might give him some advice on how to deal with the braces since she's the eldest and has more experience. Or Leni could be there to offer some fashion tips to make him feel better about his new look with the braces.
His siblings could be responsible. They are always getting into crazy situations together, and maybe one of their pranks or games goes too far and accidentally hurts Lincoln.
Perhaps the fanfiction focuses on how Lincoln gets braces and it changes his appearance. His crush could either like the new look or be put off by it at first. He then has to deal with his feelings of insecurity while also trying to show that he's still the same Lincoln, braces or not. For example, he might still be the one to come up with great plans for family outings or helping his siblings with their problems.
This kind of fanfiction often raises serious ethical concerns. Incestuous themes, like the one suggested in this title, are generally not acceptable in society. It goes against moral and family values. Such content can also be disturbing for many readers, especially those who are fans of the original work and expect positive, healthy storylines.
Maybe it could be about Lincoln getting into a fight with some bullies at school who beat him up because he stands up for someone. Then his family might find out and there's a whole drama about dealing with the bullies and helping Lincoln recover.
Well, in this fanfiction, he might get hurt while participating in a school sport. He could be pushed too hard during a football game and sprain his ankle. Or perhaps he's involved in a science experiment gone wrong at school and gets some minor burns or cuts. There are so many directions it could take.
In fanfiction, when Lincoln gets sick, his sisters might go all out to take care of him. They could make him special soups and create a cozy corner for him to rest. Maybe they'd also try to cheer him up with their unique antics, like Leni doing a silly fashion show just for him in his room.