In a fanfiction, Sunset Shimmer might bring some of her knowledge from Equestria about friendship and loyalty to the Naruto world. This could have an impact on Naruto and his friends. For example, she could teach them about how to use the power of friendship in a different way than they already know. And in return, Naruto could show her the value of hard work and determination in the ninja world.
One idea could be that Sunset Shimmer somehow gets transported to the Naruto universe. She could use her magic skills in unique ways there. Maybe she teams up with Naruto to fight against a common enemy like an Akatsuki member who has some strange magic - like powers. They could learn from each other's combat styles and grow stronger together.
A plot could revolve around Sunset Shimmer being mistaken for a powerful ninja with a new and strange jutsu. Naruto befriends her, not realizing she's from another world at first. As they go on adventures, they start to notice the differences between their worlds and have to figure out how to get Sunset back home while also dealing with the threats in the Naruto world.
One idea could be that Sunset Shimmer has to balance her pregnancy while still dealing with her magical studies. She might face challenges from her peers who doubt her ability to continue her progress while expecting. Another plot could involve her searching for a special kind of magic to ensure a healthy pregnancy for her and the baby. And perhaps she forms a new friendship with someone who has experience in both magic and motherhood, who guides her through this new phase of her life.
One idea could be a crossover with the Harry Potter universe. Sunset Shimmer could be a new student at Hogwarts, and her magical abilities from her own world could interact in interesting ways with the magic in the wizarding world. For example, her ability to transform might be mistaken for a new and strange form of Transfiguration.
Perhaps a story where Sunset Shimmer becomes a Pokemon trainer under Ash's guidance. They travel together, compete in Pokemon battles, and learn from each other's determination and courage.
Well, a possible plot could be Sunset Shimmer facing discrimination or misunderstandings from some ponies in Equestria because she's pregnant. This would then lead to a story about her proving herself and showing that she can still be a great friend and contribute to the community. Also, the story could focus on her preparing for the arrival of her baby, like decorating a nursery or learning how to be a mother. And perhaps there could be a sub - plot where she has dreams or visions about the future of her child.
One idea could be that Sunset Shimmer's little brother is a new student at Canterlot High. He could struggle to fit in at first because of his sister's reputation, but then find his own group of friends through his unique talent, like being an amazing artist. Another plot could involve him getting caught up in a magical mystery where he has to use his wits to solve it and prove himself to his sister.
One plot idea could be a male human who discovers Sunset Shimmer's world by accident. Maybe he's a new student at Canterlot High and is immediately drawn to her mysterious aura. He could then help her with some sort of school project that also involves dealing with magic problems in their town.
One plot idea could be Sunset Shimmer facing a mysterious challenge in the human world that only she can solve with the help of Anon. Maybe a magical object is causing chaos and they have to figure out its origin and how to stop it.
A third idea is that the male OC is from a different dimension. He accidentally lands in Equestria and meets Sunset Shimmer. At first, Sunset is suspicious of him but realizes he's lost and in need of help. They embark on a journey to find a way to send him back home. Along the way, they encounter various obstacles and have to rely on each other's strengths. This adventure brings them closer together, and by the time they find a way for him to return, they have developed deep feelings for each other.
One interesting plot could be Sunset Shimmer getting transported into the Halo universe. She might use her magic skills to help the UNSC in unexpected ways, like creating magical barriers to protect against Covenant attacks. Another plot could involve a Halo character coming to Sunset's world and having to adapt to the magic there.
One interesting plot could be Sunset Shimmer traveling back to the time when she first arrived in Equestria. She could try to change her initial actions and the way she interacted with the ponies, leading to a different outcome in her relationships. For example, instead of causing trouble, she might immediately try to befriend Twilight and the others, which would change the whole dynamic of the story.