One possible plot could be that they have to keep their relationship a secret from Ron, who might be jealous. So they meet in hidden corners of Hogwarts, like the Room of Requirement, to spend time together.
Maybe they start dating secretly because they fear how the wizarding world will react. They share their thoughts and feelings about magic and life in hushed conversations in the Forbidden Forest when they think no one is around. This adds an element of mystery and danger to their relationship.
The wizarding media or gossip - mongers could be antagonists. If word got out about their relationship, it could cause a stir. They would try to expose Harry and Hermione's secret, putting pressure on their relationship. So they have to constantly be on guard against these prying eyes.
One interesting plot could be them facing opposition from Ron at first. Since Ron has been their close friend, he might struggle with the idea of Harry and Hermione dating. But as time goes on, he realizes how happy they are together and comes to accept it.
One common theme is the secrecy aspect itself. Writers often explore how they keep their relationship hidden from their friends like Ron. Another theme could be the challenges they face due to the wizarding world's expectations. For example, there might be concerns about how it could affect their roles in the fight against Voldemort.
One possible plot could be them trying to keep their relationship a secret from their friends. For example, they might have to come up with excuses for why they're always disappearing together. Another plot could involve Hinata's family finding out. Her father might initially be against it, but then come to see how much Naruto has changed and grown, and finally give his blessing.
One interesting plot could be them facing magical challenges together from a young age. Since they are raised together, they might have a unique bond that helps them solve puzzles and overcome dark forces more easily. For example, they could encounter a mysterious magical creature in their backyard and figure out how to deal with it using their combined knowledge and skills.
In some 'Harry and Hermione get married fanfic', they might have to deal with a new dark threat that emerges right after their wedding. This threat could be related to a long - lost dark magic artifact that the villains want to use to take over the wizarding world. Harry and Hermione, being the intelligent and powerful couple they are, use their wits and magic to fight against this new evil. They might even get help from some unexpected allies from different houses in Hogwarts.
Some fanfictions might have a plotline where Draco and Hermione are secretly dating and they communicate through enchanted objects. Since they can't be seen together often, they use magic to send messages or small gifts to each other. This adds an element of mystery and secrecy to their relationship. Another idea could be that they meet in a hidden part of Hogwarts, like an old abandoned classroom or a secret passageway. Here, they can be themselves and share their feelings without the fear of being discovered. There could also be a plotline where they help each other overcome personal issues. For example, Draco helps Hermione deal with the pressure of being the best in her class, and Hermione helps Draco break free from his family's expectations.
One possible plotline could be the two of them trying to keep their relationship hidden from Ron, Ginny's brother. Since Ron is Harry's best friend, they might be worried about how he'd react. Another could be them sneaking around Hogwarts to have private moments together, like meeting in the Room of Requirement.
Another plot could be that Naruto is secretly dating someone who is a bit of an outcast in the village, like a person with a unique chakra ability that others don't understand. They bond over feeling different, and Naruto has to protect their relationship from those who might not approve.
One interesting plot could be that Hermione accidentally drinks a love potion meant for someone else and starts having strange feelings towards Harry. Harry, being the noble friend he is, tries to figure out how to reverse the effects without hurting Hermione's feelings.