A title like 'The Adventures of Nick and the Vixen in Zootopia' would also work well. It gives a sense of the story being about their experiences together in the Zootopia world.
A simple plot could be that the vixen is a new arrival in Zootopia and Nick helps her navigate the city. For example, she might be having trouble finding a job or a place to live, and Nick, with his street - smart ways, shows her the ropes.
There's also 'The Next Chapter'. This fanfiction is set a few years after the events of the movie. It explores how Nick and Judy's relationship has evolved over time, especially as they face new challenges in Zootopia. It's full of interesting plot twists and great character development.
Well, in this type of fanfiction, the relationship might start off as a chance encounter. Maybe the OC is in a tricky situation and Nick, being the resourceful fox he is, comes to the rescue. This initial meeting can then lead to a series of adventures together, gradually building a deeper bond as they get to know each other's quirks and strengths.
One great 'Zootopia Judy x Nick fanfiction' is 'A New Adventure'. It takes the characters on a journey outside of Zootopia to solve a mystery that involves both their skills. The story beautifully develops their relationship further, showing how they rely on each other in tough situations.
One common plotline is the OC joining Nick in his detective work. They solve mysteries together around Zootopia, facing various obstacles and villains along the way.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of 'Zootopia' fanfictions, including many about Nick and Judy. Just use the search bar and type in 'Zootopia Nick x Judy' and you'll get a list of relevant stories.
FanFiction.net is also a good place. There are many talented writers who post their 'Zootopia Judy x Nick' fanfictions there. However, the quality can vary, so you might need to read a few to find the really good ones. Some of the stories are really creative and add new dimensions to the relationship between Judy and Nick.
Perhaps Nick is physically hurt while trying to protect a group of small animals from a group of rowdy predators. He takes a blow meant for one of the little ones. This incident makes the city of Zootopia re - evaluate their views on predators and prey, and also deepens the bond between Nick and Judy as they work towards a more inclusive and safe Zootopia.
One possible scenario in this fanfiction could be that Nick and Gideon meet by chance in the city center. Nick, with his usual sly charm, tries to play it cool but is secretly on guard as he remembers their past. Gideon, on the other hand, might be a bit more nervous, still carrying some of the guilt from when they were younger. Their meeting could lead to an interesting exchange of words, with Nick trying to figure out if Gideon has really changed or if he's still the bully from their childhood days.