Perhaps in the fanfiction, Bonnie is in a situation where she needs the protection of the Originals. As she stays with them, she starts to influence their way of thinking, and they in turn introduce her to a different side of the vampire world. This interaction could lead to a romantic relationship between Bonnie and one of the Originals, while also facing challenges from the vampire and witch communities.
Another option could be Bonnie and Rebekah. Rebekah is a strong - willed female vampire. The two of them could start as rivals, perhaps competing for the same magical item or having different views on how to deal with a supernatural threat. But as the story progresses, they could develop an unexpected friendship or more, which would make for an engaging fanfiction.
One idea could be that Foxy and Toy Bonnie are from different 'groups' in the animatronic world. They initially have misunderstandings but gradually discover they have a shared love for music. They start to secretly meet and create their own unique tunes together, which then leads to a newfound friendship and they have to face the reactions of the other animatronics.
A plot could involve the human getting lost in the world of Foxy and Bonnie. Foxy and Bonnie then have to protect the human from other more dangerous characters. As they do this, they start to develop a deep bond with the human. Maybe the human has a special power that they don't know about until they are in danger, and this power ends up saving Foxy and Bonnie in a crucial moment.
One plot idea could be that Toy Bonnie and Toy Freddy are the best of friends in the Freddy Fazbear's Pizza establishment. They often get into little misadventures together, like trying to find a lost toy in the backstage area. Another could be that they have a friendly competition to see who can make the kids laugh the most during the day. Maybe they also team up to comfort a scared child during a power outage at the pizzeria.
One plot idea could be that Springtrap and Toy Bonnie are forced to team up in the haunted pizzeria. They start off as enemies but gradually discover they have more in common than they thought. For example, they both have a connection to the place's dark past. Another idea is a time - travel plot where they are sent back to a key moment in the pizzeria's history and have to work together to prevent a disaster that would change their fates.
One idea could be that Bonnie discovers she's pregnant during a time of great chaos in the magical world. She has to keep it a secret while trying to protect herself and her unborn child from dark forces. Another could be a story where the father of the baby is a mystery, and Bonnie goes on a journey to figure it out all while dealing with the physical and emotional changes of pregnancy.
Maybe there's a fanfiction where Ash and Bonnie enter a Pokemon tournament that's different from the usual ones. This tournament has strange rules, like Pokemon can only use moves that start with a certain letter. They have to quickly train their Pokemon to adapt and come up with new strategies. Along the way, they meet old friends and rivals who also want to win this unique tournament.
One idea could be that Bonnie discovers she's pregnant during a time of great turmoil in the supernatural world. She and Stefan then have to figure out how to protect their unborn child from all the threats. Maybe they go into hiding, and along the way, they face challenges that test their relationship and their will to survive.
One idea could be exploring how the other characters in the FNAF universe react to Bonnie's pregnancy. They might be confused, excited, or worried. Another could be the challenges Bonnie faces during the pregnancy, like dealing with her animatronic body limitations.
Well, a possible plot could be that they marry as a political move in the supernatural world. Klaus, being a powerful vampire, and Bonnie, a strong witch, their union could shift the power balance. Then, they might face challenges from other supernatural factions who oppose their union. Also, a plot where they get married due to a magical bond that was accidentally created, and they have to figure out how to make their relationship work while dealing with their own personal issues and the reactions of their families and friends.