Well, it could be that Lincoln in this 'Bloud House' (assuming it's a made - up or misspelled place name) gets involved in some sort of situation that forces him to break the law. Maybe he's trying to protect someone he loves and the only way he can do it is by doing illegal things like stealing something important that can save that person from a greater danger.
One possibility is that Lincoln is framed in the 'bloud house'. He gets caught up in a web of lies and false evidence that makes him look like a criminal. He then has to fight against this false accusation while also being on the run from the authorities. As he tries to clear his name, he might have to do some things that are against the law in order to survive and find the real culprit behind the frame - up.
Obviously, Lincoln is one of the main characters as the title implies that he becomes a criminal. There might also be some other characters like the people who live in the 'bloud house'. Maybe there's a villain who drives Lincoln to become a criminal, such as a cruel landlord or a corrupt official in this 'bloud house' scenario.
Another possibility is that it's a story of unrequited love at first. Lincoln might have feelings for Becky, but she's initially unaware or has her own concerns. The fanfic could then show how he tries to win her over, through acts of kindness, shared interests, and by being there for her during tough times.
Perhaps in this fanfiction, Lincoln is kidnapped by an alien who is fascinated by human behavior. The alien takes Lincoln to their spaceship. Lincoln is initially scared but then starts to learn about the alien's culture. His sisters, on Earth, figure out something is wrong and start looking for clues. Eventually, they manage to communicate with the alien and get Lincoln back.
One possible plot could be that the sisters accidentally hurt Lincoln during a wild game at home. Maybe they were playing a rough version of tag and pushed him too hard, causing him to get a minor injury like a sprained ankle. Then they feel really guilty and try to make it up to him by doing all his chores for a week.
Perhaps the fanfiction could center around Lincoln getting a special Pokemon that no one has ever seen before. This Pokemon could have some kind of connection to his family back in 'The Loud House'. He then has to protect this Pokemon from various villains in the Pokemon world who want to use its power for evil. Along the way, he makes new friends and has all kinds of adventures.
Perhaps the fanfiction involves Sid being a new neighbor in the Loud House neighborhood. She meets Lincoln, and they start a club together. They face challenges like getting other kids to join and dealing with a bully who wants to shut down their club. This could lead to a lot of fun adventures and them learning about friendship along the way.
One possible plot could be that Lincoln and Nikki are paired up for a school project. At first, they have some misunderstandings and different ideas on how to approach the project. But as they start working together more closely, they discover they have a lot in common. They both like the same kind of movies and books, and this mutual interest helps them to bond. Eventually, they complete the project successfully and their friendship deepens into something more, like a budding romance.
Well, it could be about Ash waking up one day as a girl and having to deal with all the changes in his, now her, life. Maybe she has to adjust to new social dynamics, different reactions from friends and rivals, and also how to handle Pokémon battles in a different body.
Well, it could be about Kobayashi suddenly finding herself in a situation where she starts to transform into a dragon. Maybe it's due to a magic spell gone wrong. She then has to deal with newfound powers and instincts.
Perhaps Percy is pushed to his limits by some great injustice in the story world. Maybe he witnesses the death of someone he loves at the hands of an evil force. This trauma could transform his personality, leading him to become a killer with a vendetta. He might start by targeting the ones directly responsible and then expand his scope as his thirst for vengeance grows.