In the 'Ben 10' series, Ben Tennyson is the main character. He has a device called the Omnitrix which allows him to transform into various alien forms. Gwen Tennyson is Ben's cousin. She also has magical abilities and often teams up with Ben in their adventures.
Fanfiction should be inclusive and appropriate. When it involves elements like 'futa' which have adult connotations, it is not acceptable for general audiences. The 'Ben 10' franchise has a large fan base of different ages, and fanfiction should be made in a way that respects all fans. So, this kind of fanfiction is not suitable for all.
There's a fanfic called 'The Bond Beyond Time'. In this one, Ben and Gwen are thrown into a time - loop situation that forces them to confront their feelings for each other in new ways. It has some really exciting action scenes combined with the emotional exploration of their relationship.
Another idea is to write a story about Ben's descendants in the future. How they use the Omnitrix or a new device based on the same technology. They might face new enemies and have different adventures.
First, come up with a cool concept. It could be a new adventure for Ben, like exploring a hidden alien planet. Then, create an outline of the main events in your story.
Yes, there are plenty. Some focus on alternate timelines where Ben makes different choices. For instance, what if he didn't get the Omnitrix? How would his life be? Others might explore the backstories of the aliens in the Omnitrix more deeply, which can be really interesting.
Rather than focusing on adult fanfiction, which is not something that should be promoted in a general context, we can consider fanfictions that deal with the relationships between Ben and his friends in a more emotional and complex way. For example, how they support each other during difficult times, or how they grow together as a team. This kind of fanfiction can add a lot of depth to the Ben 10 story.
I'm not entirely sure as I haven't read that specific fanfiction. But generally, in Ben 10 related fanfiction, it might involve creative and often alternative storylines about Ben Tennyson and Gwen Tennyson's relationship, perhaps with some unique adventures or character developments.
One idea could be exploring the backstories of the aliens more in - depth. For example, how did Four Arms become so strong? Another could be a story where Ben has to team up with his enemies to fight a greater threat. Maybe Vilgax and Ben have to work together against an even more powerful alien race.