Well, the plot could involve Tony being a single dad trying to balance his work and raising his daughter. Maybe his NCIS colleagues would help him out, like Gibbs giving him fatherly advice. His daughter could be a smart and curious girl who gets into little adventures around the NCIS office, causing both chaos and heart - warming moments.
Perhaps in the fanfiction, Tony's kid is a result of a one - night stand. The mother drops the kid off on his doorstep one day. Tony is initially shocked but then decides to take on the challenge. He enlists the help of his colleagues, who give him all kinds of parenting advice. His kid could turn out to be really smart and have an interest in forensics just like him, and they could start solving mini - mysteries together around the house.
One common theme is family. It often explores the relationship between Tony and his daughter, like how he protects her and guides her. Another theme is growth. We see his daughter growing up, facing challenges, and becoming her own person. And there's also the theme of legacy, as she might be influenced by Tony's work and reputation in NCIS.
His character would develop a softer side. We know Tony as a tough NCIS agent. But with a daughter, he would show more tenderness. He might start to cry at her school plays or get overly excited about her achievements. His relationship with his female colleagues might also change, as he now has a different perspective on women due to being a father to a girl.
One possible plot could be that his wife is in a dangerous line of work too, and they keep their marriage a secret to protect each other from enemies. For example, she could be an undercover agent.
I'm not sure specifically if there is such a fanfiction, but it's very likely. The world of fanfiction is vast and full of unique ideas. Writers love to explore different skills and traits for their favorite characters. Tony Dinozzo is a complex character, and making him able to sing could be part of a story that delves into his hidden talents or a backstory about his family having a musical background.
One possible plot twist could be that as a girl, Tony Dinozzo uses her charm and different perspective to solve cases in a unique way. For example, she might be able to get closer to female suspects or witnesses who would be more open to sharing information with another woman. This could lead to faster case resolutions and a different dynamic within the team.
One possible plot could be that Naruto's daughter discovers she has unique powers. For example, she might inherit a new form of the Rasengan. She could struggle with living in her father's shadow at first, but then find her own way to shine in the ninja world. Maybe she teams up with some of the new generation of ninjas to face a new threat to the village.
One possible reason could be that he wants to pursue a different career path outside of NCIS. Maybe he gets an offer that he can't resist, like working in a private detective agency where he has more freedom.
One popular tony dinozzo daughter fanfiction is 'A Father's Legacy'. It delves into how Tony's daughter grows up dealing with his past and her own identity. Another one could be 'Daughter of Dinozzo', which focuses on the unique bond between them in various situations. And 'Tony's Little Girl' is also quite good, showing her journey through life with Tony as her father figure.
In this fanfiction, the plot might involve the daughter inheriting Tony's intelligence and technological skills. She could be a prodigy in her own right, building her own gadgets in secret. When Tony finally discovers her existence, he's both proud and worried. There could be a conflict with other characters who either want to protect the daughter or use her abilities for evil purposes. And as the story progresses, she might join forces with the Avengers or form her own team to fight against the bad guys.