Perhaps the story could be about Jaune's friends and family's reactions to the baby. Some might be really excited and helpful, while others could be skeptical or worried about how Jaune will handle it all. His friends could offer different kinds of support, like babysitting or giving parenting advice.
Another plot could involve the baby having some special abilities or a unique origin. This could lead to Jaune having to protect the baby from those who might want to use it for their own purposes. For example, there could be villains who are after the baby because of its power.
One interesting plot could be them building a life together after marriage. They might face challenges like how to combine their different combat styles into a training regime for the next generation. For example, Jaune's more unorthodox approach and Pyrrha's highly skilled and precise style could be passed on in new and unique ways.
One interesting plot could be Blaine's journey in learning how to be a new father. He might face challenges like sleepless nights and trying to understand the baby's needs.
Maybe they travel to a time long before the events of the story, during a period when the kingdoms were first being established. They get involved in the ancient politics and power struggles, and in the process, they discover secrets about the origin of the Grimm and the power of the Relics that were long forgotten. Their actions in this past time could have a huge impact on their present world.
Another plot could be that the OC is an outcast too, for different reasons. When Jaune is expelled, they find common ground. They could then decide to leave the place together and start their own journey. Along the way, they learn more about each other's pasts and develop a strong bond while also trying to find a way to prove Jaune's innocence in the events that got him expelled.
One possible plot could be Baby and Deborah going on a cross - country adventure, with Baby's amazing driving skills coming in handy during various unexpected situations, like escaping from some bad guys who are after them for some mysterious reason.
A possible plot in baby Rosalina fanfiction is that she befriends a lonely comet. The comet is usually shunned by the other celestial bodies because it's different. But baby Rosalina sees the beauty in it and they become friends. This story could teach about acceptance and friendship. And there could also be a plot where baby Rosalina has a dream of visiting a far - off galaxy and she tries to make that dream come true throughout the story.
One interesting plot could be Superboy discovers a baby with superpowers. He then has to protect the baby from villains who want to use the baby's powers for evil. Another could be that the baby is from another dimension and Superboy has to figure out how to send it back home while also keeping it safe in his world. Maybe the baby has a special connection to Superboy's origin that he has to uncover.
There are also plots where baby Stiles has some special powers that he doesn't have as an older character. The pack has to protect him from those who would want to use his powers for evil, and in the process, there are cute and heart - warming interactions between Stiles and the members of the pack as they try to understand his powers and keep him safe.
Perhaps in the 'bella as a baby fanfiction', there's a plot where Bella is a baby and she has a special connection to a magical or supernatural element in the world. For example, she can see fairies or spirits that others can't. This would create a lot of mystery and adventure as those around her try to protect her or figure out what she's seeing.
One interesting plot could be baby Mew's adventures in a magical forest filled with strange creatures. It might be trying to find its way back home while making new friends along the way.