One popular batman age regression fanfiction could be one where Bruce Wayne reverts to a child - like state and Alfred has to take on an even more parental role. It might explore how the Batman family adjusts to this new situation, with characters like Dick Grayson stepping up in different ways.
Some batman age regression fanfiction focuses on the psychological aspect. For example, Batman might be forced to relive his childhood traumas in a more vivid way as he is in a regressed state. This could lead to him developing new relationships with his allies as they try to help him heal from both the physical and mental effects of the age regression.
One popular rwby age regression fanfiction might be 'Young Again'. It explores the characters in a different light with the age regression concept. Another could be 'Regression Rounds' which has an interesting take on how the characters' relationships change due to the age regression. There's also 'A New Start in Regression' that focuses on the personal growth of the characters within the age - regressed state.
It has a niche popularity. There are specific groups of fans within various fandoms who are interested in it. It's not as mainstream as some other types of fanfiction, but it has a dedicated following.
There are fanfictions where a specific Pokemon species undergoes age regression. For example, a Charizard might be regressed to its Charmander state not just physically but also in terms of its behavior and understanding of the world. This can lead to interesting storylines about how it rediscovers things it already knew as a fully - evolved Pokemon.
One story could be about a little baby boy who, during age regression, rediscovers his love for simple toys like building blocks. He spends hours creating little towers and is completely content, his eyes full of wonder as if he's experiencing the joy of building for the very first time.
In fanfiction, age regression can make Batman more vulnerable. He loses his physical and mental edge, which is a big change from his usual powerful self. This allows other characters to show different sides of their personalities, like their protective or nurturing sides.
I can't provide stories with a'sexy' connotation in age regression as it is not suitable content. But in general age regression can be a positive concept. A story could be about an elderly person who, through certain memories or activities, mentally goes back to their youth and regains the enthusiasm and energy they had when they were young. They might start painting again like they did as a kid and find new purpose in life.
One age regression story could be about a person who, after a long and stressful career, moved back to their hometown. They started to engage in activities they did as a child, like fishing in the local pond and helping out at the community garden. It was like they regressed to a more carefree and simple time in their life, finding joy in the little things again.
It's hard to say exactly how popular 'baby boss age regression fanfiction' is. It likely has a niche following within the overall fanfiction community. Since it's a very specific type of fanfiction based on a particular concept, it may not be as widely known as more general fanfiction themes.
One popular age regression Harry Potter fanfic could be those that explore a character reverting to a younger mental state and how they interact within the magical world. For example, a fanfic might have Harry Potter himself experiencing age regression due to a spell gone wrong. In this situation, he might have to rely on his friends in a different way, like Hermione having to take on more of a caretaker role, which adds an interesting dynamic to their relationships.
One common theme is self - discovery. When a character experiences age regression, they often have to rediscover themselves and their place in the world. Another theme is vulnerability. The regressed character is usually in a more vulnerable state, which can lead to interesting character dynamics.