Yes, there are some out there. You can start by looking on popular fanfiction websites like Fanfiction.net or Archive of Our Own. Just search for 'fem Orochimaru loves Naruto' and you'll likely find a variety of stories with different takes on this rather unique concept.
It could be about Fem Orochimaru having a different relationship with Naruto. Maybe she sees him as a potential ally or apprentice in a new way compared to the original Orochimaru.
You can try searching on fanfiction websites like FanFiction.net or Archive of Our Own. Just type in 'Fem Orochimaru Naruto' in the search bar and you'll likely find some relevant fanfictions.
One possible fanfiction could involve Fem Orochimaru seeing Naruto as a unique specimen. Maybe she's intrigued by his unwavering will and the power of the Nine - Tails within him. She might try to get closer to him in order to study his power source. For example, she could disguise herself and join Naruto on some of his missions, all the while observing him secretly.
One possible reason could be Naruto's unique power. Naruto has the Nine - Tails within him, which is an extremely powerful and mysterious force. Orochimaru, being a character always interested in power and forbidden jutsu, might be obsessed with Naruto in fanfiction because he wants to study or even obtain that power for himself. Also, Naruto's strong - willed personality and his ability to change the people around him could be fascinating to Orochimaru who has always been somewhat of an outcast in the Naruto world.
One common theme is the struggle between Orochimaru's dark nature and her love for Naruto. Another could be Naruto's reaction to this unexpected affection, whether it's confusion or gradual acceptance.
It changes the Naruto universe in several ways. Firstly, Fem Orochimaru's actions would be different from the male Orochimaru's. Her motives for taking Naruto might not be as purely power - hungry. This could lead to different alliances and enmities. For example, some characters who were against Orochimaru might be more lenient towards Fem Orochimaru if she shows a more benevolent side. Secondly, Naruto's growth and development would be altered. Instead of following the path with Jiraiya, he's with Fem Orochimaru. So his jutsu and combat style might incorporate more of her unorthodox and perhaps more feminine - influenced techniques. Also, the perception of Orochimaru's lair or hideouts would change. It could be less of a spooky, evil - filled place and more of a place of mystery and potential redemption.
It could develop in a very complex way. Maybe at first, it's full of hostility as Orochimaru has his own dark motives. But as the story progresses, Naruto's positive influence might start to change Orochimaru's perspective a bit.
Well, perhaps in this fanfiction, Fem Orochimaru takes Naruto because she believes he has the potential to unlock a powerful transformation that she has been researching. She kidnaps him in a rather unorthodox way but then realizes that Naruto is not going to be compliant without some sort of deal. So they strike a bargain. As they work together, Naruto starts to understand Fem Orochimaru's past and her reasons for her actions. And Fem Orochimaru starts to have a soft spot for Naruto, which is completely unexpected for her.
A simple plot could be that Fem Orochimaru wants to use Naruto's chakra for her own gain. She tries to capture him but Naruto always manages to escape. Each encounter makes her more obsessed as she realizes how powerful Naruto truly is.