No. Writing sexual stories involving children is completely inappropriate and unethical. It is a form of child exploitation and violates the rights and protection of minors.
The little boy in the context of John 3:16 might be a character in a religious story. He could be a symbol of innocence. The verse itself is a profound statement about God's love. The little boy might be on a journey of discovery, trying to understand the depth of this love. He could be involved in a story where he faces challenges, but the message of John 3:16 gives him hope and strength to overcome.
The regression of a little boy in a story could refer to many things. It might be about his emotional regression, like going from a confident child to a more withdrawn one perhaps due to a difficult event at school or at home. For example, if he was bullied at school, he could start to regress in his social skills and become shy again.
Once upon a time, there was a little girl named Lily and a little boy named Tom. They were neighbors. One day, Tom found a beautiful flower and gave it to Lily. Since then, they became good friends. As they grew up together, they started to have a special feeling for each other. They would share their little secrets and always be there for one another.