Well, a great plot could be that the male OC is an out - of - towner who comes to Beacon Hills to study. He meets Stiles, and they initially clash but then gradually become friends and more. There could also be a plot where the male OC has a past that is somehow related to the Nogitsune that Stiles once faced, and as they explore this connection, love grows between them. And a more light - hearted idea is that the male OC is a huge fan of Stiles' dad's work at the sheriff's department, and through that, he gets to know Stiles, leading to a romantic relationship.
One idea could be that they have to team up to solve a mystery in the forest that involves a new supernatural threat. Maybe a strange creature is attacking hikers and they need to use their combined skills, Derek's werewolf abilities and Stiles' intelligence and knowledge of the town's secrets.
The theme of growth and change is also prevalent. The pregnancy forces both Stiles and the OC to grow up and take on more responsibilities. They have to adapt to their new situation, which can be a source of character development. For example, Stiles might become more serious and focused on building a stable future for his family, while the OC might discover new strengths within herself as she prepares to become a mother.
Well, one possible plot could be about Stiles Stilinski dealing with the challenges of being a young, unexpected parent. Maybe he has to balance his normal life, like school and friendships, with the new responsibilities of having a baby on the way. Another plot might involve the reactions of his family and friends to the news. Some might be very supportive, while others could be shocked or even judgmental at first.
One plot idea could be the challenges she faces in hiding her pregnancy from certain characters in the fanfic's world. Maybe there are those who would use it against her or the group she's associated with.
Well, I really liked 'The Silent Protector' in the Stiles x Sheriff Stilinski fanfiction world. In this story, Stiles is in a really tough situation and the Sheriff is there to be his rock. It shows a side of their relationship that we don't always get to see in the show. 'Heart - to - Heart' is also good. It has a lot of emotional moments between them, like when they finally have an open conversation about all the secrets in their lives. And don't forget 'Guardian's Promise' which is about the Sheriff making a promise to always protect Stiles no matter what.
One idea could be that the male OC is a powerful mage from a far - off land. He crosses paths with Inuyasha and the gang while on a quest to retrieve a powerful magical artifact that has been lost in Feudal Japan. His magic skills could either complement Inuyasha's fighting style or cause some initial clashes due to differences in their approaches.
A more emotional storyline could be about Peter and Stiles forming an unlikely friendship. Stiles, who has always been a bit wary of Peter, gradually comes to understand him better and they develop a bond that helps both of them heal from their past traumas.
To write a believable relationship, first, show their initial interactions. Maybe they start as classmates or teammates. Let there be some friction at first, like Stiles being a bit suspicious of the male OC. Then, as they get to know each other, show small moments of connection, like sharing a love for a certain type of music or a common goal in solving a mystery. Build on these moments gradually, and don't rush the romantic aspect.
One common theme is the 'fish out of water' scenario. Since Stiles is from a world with werewolves and magic, and Steve is from a more 'normal' superhero world at first glance, their interactions can create interesting situations where they learn about each other's worlds.
One idea could be that the male OC is reincarnated as a villain in the BNHA world but has memories of his past life as a hero. So he struggles between his new villainous identity and his old heroic values. Another plot could be that he reincarnates as a quirkless character, like Midoriya was initially, but he uses his past - life knowledge to develop unique combat skills. Or perhaps he reincarnates as a powerful hero's sidekick and has to deal with living in the shadow while trying to prove his own worth.