One way could be to turn it into a humorous misunderstanding. Maybe Naruto accidentally bumps into Ino and Sakura in class and it looks like something else for a moment, but then they all laugh it off and continue with their studies or ninja training.
Fanfics should promote positive values. A story about Naruto, Ino, and Sakura could focus on their teamwork, training, or friendship in class, rather than something improper like this.
We can focus on the 'dawn' aspect. Dawn is a time of new beginnings, so we could create a story about a character starting a new chapter in their life at dawn. Maybe they are making a resolution, or embarking on a new adventure.
We can focus on the journey of self - discovery and acceptance. For example, a character who is going through gender transformation can learn to accept themselves, face challenges from society, and finally find their true identity and happiness. It can be about the power of being true to oneself.
We can focus on the 'gay' part and make it about a young gay teen's journey of self - acceptance. For example, the story could be about a young gay boy who is initially afraid to come out to his friends and family. Through a series of events, like meeting a supportive mentor or making new friends who are also part of the LGBTQ+ community, he gradually gains the confidence to be true to himself. This has nothing to do with the inappropriate 'facesit' and focuses on positive character development.
We can rewrite it as a fanfiction where Naruto and Sakura participate in a friendly competition. They bet on the outcome, and the loser has to do a series of kind - hearted tasks for the winner, like helping in the village's reconstruction or teaching kids some ninja moves. This way, it's a fun and positive interaction rather than a demeaning 'slave' relationship.
The simplest way is to completely discard the inappropriate part. For example, we can just use 'Anko's Adventure' which is positive and engaging.
One way is to put them in a school - related scenario. Maybe they are working on a big project together for school. They face challenges like tight deadlines and difficult group members but they support each other and grow as individuals and friends throughout the process.
First, we can redefine the 'big sister' role as a mentor or a role model. For example, she could be a big sister who is passionate about her career or a hobby, like painting or writing. This way, the 'horny' (inappropriate connotation) is replaced with positive energy and enthusiasm.
One way could be to focus on how the gender change affects Deku's relationships with other characters in a platonic sense. For example, how his friends react to his new gender and how it changes the way they interact in terms of friendship and teamwork.
We can completely change the focus. Instead of having such possessive and disrespectful ideas, we can think about sharing positive qualities. For example, if someone has great leadership skills ('big' in a positive sense), they can inspire and help others, including women, to achieve their goals.