Maybe the girl is a Muggle - born witch who has a really unique way of using magic. Harry is intrigued by her different approach. They get paired up for a project at Hogwarts, and through working together and getting to know each other's personalities and dreams, they become a couple.
In this fanfiction, perhaps Harry saves a girl from a dangerous magical creature during one of his adventures outside of Hogwarts. She's so grateful and as they spend more time together healing her wounds and such, they develop feelings for each other.
It could be a new character, like a foreign exchange student from Beauxbatons. She has a different charm and magic style compared to Hogwarts students, which catches Harry's eye.
The plot could be that Sheldon's friends are highly skeptical at first. They might think it's just a short - lived oddity. However, as the story progresses, they see Sheldon changing in positive ways. His girlfriend could introduce him to new hobbies or social situations that he initially resists but then grows to enjoy.
In the fanfiction, perhaps Beast Boy's girlfriend could be a new superhero in town. They meet during a battle against a common enemy. She first sees his brave side when he's in the form of a fierce beast, and she's drawn to him. As they get to know each other more, they start to date. Their relationship could be filled with adventures as they fight crime together and also deal with the normal relationship stuff like jealousy and misunderstandings.
In the 'harry gets a tattoo fanfiction', he might get a tattoo as part of a bet or a dare. His friends challenge him and, being the brave Harry we know, he accepts. The tattoo could be something really out - of - the - ordinary, like a moving image of his Patronus. This could lead to all sorts of adventures as he tries to hide it from the more conservative members of the wizarding world.
Well, perhaps Voldemort's followers could kidnap Harry to use him as a bargaining chip. They might hold him in an old, dark wizarding house, guarded by dark magic. Harry would then try to escape using his own magic skills and the help of some unexpected allies like house - elves who secretly oppose Voldemort.
In the 'harry gets a gun fanfiction', it could be that Harry is given the gun by a mysterious figure. This figure might have an ulterior motive, like using Harry as a pawn in a bigger game. Harry then has to decide whether to trust this person and what the implications of having the gun are for his own safety and the safety of those around him.
Maybe it could be about Harry's insecurities at first with getting braces. He might be worried about how his friends will react, especially if he has a crush on someone at Hogwarts. But then as the story progresses, his friends support him and he learns to embrace his new look.
In a 'Harry Potter gets emancipated' fanfiction, the plot could involve Harry getting emancipated due to his special status as the Boy Who Lived. With his emancipation, he could take charge of his own finances, which were a mess in the hands of the Dursleys. He could then use his money to fund independent research on dark magic defenses. Maybe he'd even start a small group of like - minded students who are also frustrated with the slow - paced and sometimes - inaccurate teachings at Hogwarts.
Maybe Ginny did something that Harry thought was a betrayal, like siding with someone against him in a wizarding conflict. So Harry decides to play some harmless pranks on her to get revenge. For example, he might use magic to make her quill write silly things during a class.
Well, perhaps Harry discovers a magical creature in the Forbidden Forest that becomes his familiar. It could be a small dragon-like creature that only he can communicate with, and it helps him find hidden secrets in Hogwarts.