There could potentially be some very niche or out - of - the - ordinary fanfiction that involves such a plot, but it's not something that would be easy to find in mainstream fanfiction repositories. It might exist in some more specialized or less - regulated fan - created spaces, but it's also possible it doesn't exist at all.
I think it depends on how it's done. If it's written in a way that is more about exploring the psychological impact and the resilience of the character, and not just for shock value, it could be considered a valid form of fan - created content. But if it's gratuitous torture with no real purpose other than to be cruel, then it's not ethical. We should respect the integrity of the character and the feelings of the fans who care about her.
A fanfiction might explore the idea of Kaneki and Touka's married life in a more comical way. Maybe they argue about who does the dishes, as ghouls don't really have normal eating habits. Or they have to deal with their friends constantly dropping by unannounced. Their relationship would still be full of love, but these little everyday situations would add a touch of humor to their married life.
On the other hand, there could be a small group of fans who are into very alternative and creative interpretations. They might see it as an interesting exploration of the characters in a completely new and unexpected way. They could engage in discussions about how the story could develop given this very unusual premise, exploring the potential character growth and relationship changes that could result from such a situation.
She might become more determined to fight against the Capitol. In many stories, such torture could fuel her anger and strengthen her resolve to overthrow the oppressive regime.
There's a fanfic titled 'Sebastian's Agony'. In this, Sebastian is physically tortured by a powerful, unknown entity. The author really focuses on his pain and how he tries to find a way out of the situation while still being true to his character traits like loyalty and pride.
No, he doesn't in the official series. Fanfictions about his torture exist because fans like to experiment with different plotlines. They might want to see how Percy would react under extreme stress and pain. It gives a chance to show his inner strength or to create a different kind of character development that might not be possible in the main story. It's a way for fans to put their own spin on the character and the world.
One possible plotline could be that Damon is tortured by a powerful witch as revenge for something he did in the past. Maybe he accidentally killed a member of the witch's coven. Another could be that he is tortured by a group of vampires who want to send a message to Stefan. They might use vervain and sunlight to torture him in creative ways.
For one, it adds a new layer of drama. Reid is such a beloved character, and seeing him in a vulnerable, tortured state makes readers feel a strong sense of empathy. It also allows for a deeper exploration of his character.