Develop strong relationships between the OC sister and the brothers. Each relationship should be different. Maybe one brother she has a more antagonistic relationship with at first, while with another she has an instant connection. Explore these relationships through different situations and dialogues.
One great 'Brothers Conflict OC Sister' fanfiction is 'The New Sister in the Asahina Household'. It has an interesting plot where the OC sister brings a fresh dynamic to the family. The author does a wonderful job of portraying her character development as she navigates her new life with the brothers.
First, you need to decide on the main characters involved in the wedding. Will it be one of the brothers getting married? Or perhaps a side character? Then, think about the setting. Is it a big, fancy wedding in a grand hall or a more intimate ceremony outdoors? Next, develop the plot. It could be centered around family drama, like the brothers competing for attention during the wedding, or it could be a more romantic plot about the couple's love story. Also, don't forget to include the unique personalities of the Brothers Conflict characters to make the fanfic interesting.
First, give your OC a clear backstory. For example, if they've moved to a new place, explain why. Maybe they had family issues in their old hometown. Second, give them distinct personality traits. If they're shy, show how that affects their interactions with the brothers. For instance, they might blush and stutter when talking to their crush among the brothers.
Start with small interactions. For example, let them exchange polite greetings at first. Then, gradually add moments of shared interests. If they both like a certain type of tea, have them discover this about each other over a casual tea - drinking session.
The brothers could develop in their relationships with each other. For instance, they might have to put aside their differences and work together to support the oc during her pregnancy. This could lead to stronger bonds between some of the brothers who previously had rivalries.
Another possible plot twist is that the oc's pregnancy might be a threat to the family's harmony in a different way. For example, some of the brothers might have plans or dreams that are now put on hold because of the pregnancy, causing conflicts within the family that go beyond just jealousy or rivalry.
One idea could be an OC who is a talented artist. She could use her art to bond with the brothers in different ways. For example, she might paint portraits of them, which could lead to some sweet and funny interactions as they react to how she's depicted them.
First, you need to have a good understanding of the Brothers Conflict characters. Know their personalities, backstories, and relationships. Then, start with an interesting concept for the yaoi relationship, like a forbidden love or a slow - burn romance. For example, you could start with two brothers who accidentally discover their feelings for each other during a family trip.
You can also build a plot around her relationship with Sesshomaru. Maybe there is a rift between them that needs to be healed. She tries to do something to regain his trust or respect, but things keep going wrong. This internal family drama can be intertwined with external threats like demon battles.
To write a good Naruto sister OC fanfiction, you should also pay attention to the existing Naruto lore. Don't break the rules of chakra and jutsu without a good explanation. For instance, if your OC has a new jutsu, explain how she discovered it. Also, create interesting relationships for her. She could have a rivalry with Sasuke or a friendship with Sakura. And don't forget about character growth. Let her learn from her mistakes and become stronger throughout the story. This will make the readers more engaged.