One idea could be Osmosis Jones having to team up with a new type of cell that has a unique ability, like a cell that can time - travel within the body. They have to go back in time to stop a virus from mutating into a more dangerous form that it will become in the future.
A fanfic could explore what happens if Osmosis Jones loses his memory. He wakes up not knowing who he is or what his job is in the body. The other cells have to help him regain his memory while also dealing with an ongoing infection that's taking advantage of Jones' confusion.
Maybe Osmosis Jones gets transferred to a different body for a mission. This body has a very different immune system, like it's super - weak or has some strange quirks. Jones has to figure out how to work with this new environment and the local cells to fight off an invasion of bacteria that are specifically adapted to this body.
A crossover with 'The Magic School Bus' might be cool. Ms. Frizzle and her class could shrink down and enter a human body where they meet Osmosis Jones. Together, they could learn about the immune system and help Jones fight off a particularly tough germ. The students could use their scientific knowledge from school to assist in the battle.
Some Osmosis Jones fanfiction ideas might involve relationships. For instance, a story about Osmosis Jones falling in love with another cell in the body. It could be a comical love story where they face challenges like misunderstandings and the chaos of the body's functions. Or, there could be a fanfiction where Osmosis Jones has to mentor a young, inexperienced cell and teach it the ropes of protecting the body. Also, a story about Osmosis Jones getting lost in a maze - like part of the body and having to find his way back while fending off germs would be interesting.
You could write an OC fanfiction where the OC is a foreign cell that enters Frank's body. This cell has different rules and functions compared to the native cells. It initially causes chaos as the body's systems don't understand it, but Osmosis Jones realizes its potential and tries to work with it to fight off a super - virus that is immune to the normal defenses. The OC could bring in new ways of fighting diseases from the outside world it came from.
One idea could be that the OC is a new cell in the body and accidentally stumbles upon Thrax while he's on one of his evil missions. Thrax is initially intrigued by this unknown entity and decides to toy with the OC instead of attacking right away.
A mutant virus that has the ability to disguise itself as a normal cell. It can blend in so well that Osmosis Jones and his team initially don't suspect it. This virus could be spreading harmful genetic material throughout the body, slowly weakening the overall health. Jones would need to develop a new detection method to find this sneaky villain.
A more complex plot could be Bridget Jones discovering during her pregnancy that there are some family secrets that could potentially affect her unborn child. She then embarks on a journey to uncover these secrets while also dealing with the physical and emotional changes of pregnancy. This could involve meeting long - lost relatives or finding out about a family curse or blessing that she had no idea about before.
Perhaps Hestia Jones and Harry team up to rescue some captured magical creatures. They could face many obstacles along the way, and in the process, develop a strong bond of friendship.
One idea could be exploring the relationship between Bridget and the baby's father in more depth. Maybe show how they navigate the challenges of co - parenting while also dealing with their own feelings for each other.
One idea could be that Jellybean Jones is kidnapped by an old enemy seeking revenge. The friends then have to go on a wild adventure to find her. They might follow a series of mysterious clues left behind by the kidnapper.
In this type of fanfiction, the theme of transformation can be quite common. Thrax, being a virus, might be seen as having the potential to change, either for the better or for the worse, due to his interactions with Osmosis Jones. Another theme is the exploration of their respective natures. Osmosis Jones' heroic and selfless nature is pitted against Thrax's malevolent and self - serving one. There is also the theme of the thin line between order and chaos. Osmosis Jones is all about maintaining order in the body, while Thrax thrives on creating chaos. Fanfiction writers often play with these themes to create interesting and engaging stories.