Sirius walks in on Harry and Hermione fanfiction: How would this incident affect the relationship between Harry, Hermione and Sirius?

This incident could also introduce new storylines. Maybe Sirius tries to keep Harry and Draco apart, which then leads to a series of events where they have to find ways to be together or communicate secretly. Or perhaps Sirius' reaction causes other characters to get involved, expanding the scope of the fanfiction plot.

Well, depending on the context of the fanfiction, Sirius could also be very understanding. If he knew that Harry and Hermione were just having a private conversation about important matters like their fight against Voldemort or schoolwork, he might just give them a knowing smile and say something like 'Carry on, then. Just making sure everything's all right.' He's a rather perceptive character, after all. And he trusts Harry a great deal, so he would likely give them the benefit of the doubt before assuming anything untoward.

Often, it begins with Hermione trying to help Sirius deal with his post - Azkaban trauma. She uses her knowledge and compassion to reach out to him. As he heals, he starts to see her in a new light. Their relationship then grows as they start to understand each other better. The lemon parts usually are used to explore their more passionate and private moments, which are often written in a very tender and intense way, adding a new dimension to their relationship.

A father - daughter like relationship could be expected. Sirius, having lost so much in his life, might see Hermione as someone he can care for and protect, much like a daughter. He could be very protective of her and give her advice on how to navigate the complex wizarding world.

Well, their relationship would be in tatters. Harry would probably avoid Sirius like the plague after such an event. Sirius, on the other hand, would be at a loss for how to deal with what has happened. He might feel betrayed, even though he knows Harry was forced. This would create a huge rift between them that would take a lot of time and effort, if ever, to mend. It would also change the way they interact with other characters in the fanfiction, as their relationship was an important part of the overall story dynamic.

It can strain their relationship. If the argument is really intense, they might not trust each other as much immediately afterwards. For example, Harry might start to question Sirius' motives and Sirius could feel that Harry doesn't respect his experience.

It could strengthen their relationship. If Harry handles it well, it shows his maturity and trust in them. They would likely appreciate that and become even closer to him.

Their relationship would be severely damaged. Harry would likely feel betrayed by Sirius. After all, Sirius is supposed to be one of his protectors. It would be a huge breach of trust. Sirius, on the other hand, would probably be filled with guilt if he realizes his mistake. He would have to work hard to regain Harry's trust, if that's even possible in the context of the fanfic.

It's possible that in the cave, they start to see each other as equals rather than just a mentor - student relationship. They might argue about the best way to deal with the cave's mysteries at first, but through that process, they learn to value each other's perspectives. Also, if one of them gets injured in the cave, the care and concern shown by the other would enhance their relationship.

Their secret marriage would likely shock many in the wizarding world. Hermione is known for her intelligence and academic achievements, and Sirius has his own reputation as a rebel. People would question how such a relationship could work. It could potentially lead to changes in the way the wizarding society views relationships between different generations. Some families might become more open - minded, while others would be more conservative in their views. And it could also have an impact on Hermione's future career prospects, as there could be some who would oppose her because of her relationship with Sirius.