There could be ones where Ben uses his alien forms in unique ways related to the 'feet' aspect in really creative scenarios. For example, maybe Four Arms uses his powerful feet to stomp out some kind of dangerous robotic enemy that was impervious to other attacks. It could also involve Ben's alien forms having special abilities related to their feet that are crucial in saving the day in a particular fan - created adventure.
Ben is obviously the main character as it's a 'ben 10' related fanfic. His various alien forms are also important characters in a sense. For example, Upgrade might be involved if the story has to do with his feet being able to attach to and control machinery in a unique way related to his feet. Gwen could also be a part of the story, perhaps helping Ben understand some strange phenomenon related to his alien feet forms.
One aspect of 'Ben 10 Evil Ben Fanfic' could be the exploration of the character's dark side. Evil Ben is a fascinating take on the original Ben. It might show how he would use his powers in more malevolent ways, like using the Omnitrix to intimidate or dominate others rather than protect. This could also lead to interesting storylines involving his relationships with the other characters, as they would have to either oppose him or be corrupted by his influence.
A 'feet fanfic' is a type of fan - created fictional writing that often focuses on feet in some way. It could involve characters having unique relationships or experiences related to feet. However, this can be a rather niche and sometimes considered a bit odd form of fanfic.
A 'Ben loves Gwen' fanfic could explore a different side of their relationship. It might show a more romantic aspect compared to the normal sibling - like dynamic in the show. Maybe it could be set in an alternate universe where they're not related and the feelings develop naturally.
One possible plot could be that Rook and Ben go on an adventure to a new planet in the Ben 10 Omniverse. They encounter a strange alien species that has a unique power. Ben tries to use his Omnitrix to transform into an appropriate alien to deal with the situation, but there are some glitches. Rook, with his Plumber skills, helps Ben figure out what's wrong and together they overcome the challenges and make new friends among the aliens.
Ben 110 can be developed by giving him new challenges related to the Highbreed. For example, he could face a Highbreed villain who has a power that nullifies Ben's alien forms. This would force him to rely on his human intelligence and resourcefulness. He could also develop his character by learning about the Highbreed's language and communication methods, which would show his adaptability.
Some might focus on the training of an Avatar's feet. Since the Avatar has to master different bending forms, their feet play a crucial role. In a fanfic, it could be about an Avatar's struggle to perfect the stances that require precise footwork in firebending, like the quick and powerful movements. Or in airbending, where the feet need to be light and flowing. This could also tie in with a mentor - apprentice relationship, where the mentor corrects the Avatar's foot positions to help them improve their bending skills.
A 'bleach feet fanfic' could potentially be a form of fan - inspired writing. It might involve a scenario where characters are involved in the process of bleaching feet, perhaps for aesthetic reasons or as part of a strange or interesting cultural practice within the fictional world of the fanfic. It could also be a satirical or comical take on the idea of foot care and beauty standards.
I haven't actually read this specific fanfic, but generally in a 'Ben x Esther' fanfic in the Ben 10 Omniverse setting, it might explore their relationship in different ways. It could involve adventures where they team up, and their characters' growth while dealing with various threats in the Omniverse. Maybe it also delves into how their different personalities interact and complement each other.