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.
An interesting Osmosis Jones OC fanfiction could revolve around an OC that is a malfunctioning cell. This cell was supposed to be part of a normal function but due to some accident, it has strange behavior. It might accidentally disrupt some of Osmosis Jones' operations at first. But as the story progresses, Osmosis Jones discovers that this malfunctioning cell has an unexpected advantage when it comes to fighting a very tricky germ that has adapted to the body's normal defense mechanisms. The OC could then be redeemed and become an important part of the body's defense team.
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.
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.
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.
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.
First, start with conflict. Since Thrax is a villain, there should be a lot of push - and - pull between him and the OC. Maybe the OC tries to reform Thrax at first, which he resists. This creates a dynamic where they are constantly at odds but also drawn to each other in a strange way.
First, you need to come up with your original character (OC). Decide what kind of cell or entity it will be in the world of Osmosis Jones. Is it a brave white blood cell like Osmosis? Or perhaps a unique type of antibody? Once you have your OC, think about their backstory. Where did they come from? What made them the way they are? After that, you can start thinking about the plot. Maybe your OC discovers a new threat in Frank's body that Osmosis Jones is unaware of.
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.
Osmosis Jones himself is of course a must - include. Drix, the cold pill, is also a great character as he brings a different perspective and set of skills. The Mayor of Frank could be included for some political and comical elements in the fanfiction. Also, some of the villainous germs like Thrax could add a lot of drama and action. They are well - known and their evil nature can create great conflict in the story.
A crossover with Iron Man could be really cool. Imagine Tony Stark recruiting Jessica Jones for a special mission. Jessica's no - nonsense attitude might clash with Stark's ego at first, but they could end up making a great team and saving the day in a very different way than either is used to.
One plotline could be that the OC is a mermaid. Killian Jones, being a sailor, has always been intrigued by the legends of mermaids. When he encounters this OC mermaid, she is in danger from a sea - witch. He decides to help her, and in the process, they form a bond. Their relationship could develop as they explore different underwater and on - land adventures together.