Her obsession with fanfiction could lead her to view the original series as more of a foundation. She may see the original Naruto as the starting point from which all the amazing fan - created stories emerge, and thus value it in a different way, almost like a wellspring of inspiration for the fanfiction she loves.
The Kyuubi suit might make her relationships more complex. Her friends could be both in awe and a bit scared of her new power. For example, Sasuke might be initially hesitant to approach her as he's not sure how to deal with the Kyuubi's influence. But over time, as he sees that she's still the same Naruto at heart, their relationship could strengthen.
The Kyuubi's obsession can accelerate Naruto's character growth. Since it's always around in some sense, Naruto may become more confident as he has this powerful being so interested in him. He might also become more aware of his own power potential.
The symbiote could make Naruto's relationships more complicated. For her friends, they might be initially scared or distrustful of the new - looking Naruto with the symbiote. For example, Sasuke might see her as a threat now. But as they learn that the symbiote is actually helping Naruto control the Kyuubi, they might slowly accept it.
It could potentially enhance her relationships. For example, if she reads fanfiction about her and her friends' adventures, it might make her more appreciative of them in real life within the Naruto universe. She could start seeing new aspects of their personalities through the different portrayals in fanfiction.
Another way could be through communication. In some private moments, she might open up to Naruto about how she feels. She could say things like 'You are important to me, and I want you by my side always' in a soft and sincere tone.
The fem Kyuubi could also be protective in a more subtle way. Maybe she gives Naruto advice based on her long - time existence and knowledge. Like warning him about certain dangerous jutsus or shinobi he should avoid. She uses her wisdom to keep Naruto out of harm's way.
The concept of Fem Naruto and Kyuubi adds a new dimension to fanfiction. It allows for different character dynamics. For example, the relationship between a female Naruto and the Kyuubi can be explored in ways that are distinct from the original male Naruto - Kyuubi relationship. It can attract a different audience, especially female readers who might identify more with a female protagonist.
It can bring more attention to certain types of fanfictions. If fem Sasuke is obsessed with Naruto fanfiction, other fans might become curious about the ones she likes. This could lead to an increase in popularity for those specific fanfictions or even the genre as a whole within the community.
Her gender as a fem Naruto born as the Kyuubi might make Sasuke more protective of her. In the original, Sasuke was somewhat competitive with Naruto. But now, he could see her as more delicate, even if she has the Kyuubi's power. This could lead to a more complex relationship dynamic, with Sasuke being torn between his pride and his growing feelings for her.
It could add to the popularity of certain types of fanfiction. If Kushina is seen as being obsessed with it, more fans might be interested in exploring the fanfictions she might be interested in. For example, if there are fanfictions that focus on Kushina's relationship with Naruto in new ways, those might gain more attention.