In such fanfiction, the relationship between the siblings can be complex. The act of spanking can be seen as a form of tough love. The older sibling might be very protective and spank the little sister to keep her out of harm's way in the dangerous Vampire Diaries world. It shows a sense of authority and care at the same time.
I'm sorry, I don't have specific 'spanking vampire little sister fanfiction' to recommend directly. You can try searching on some well - known fanfiction platforms like Archive of Our Own. There might be a variety of such works with different storylines and themes within the vampire - related fanfiction category.
One popular 'Vampire Older Sister x Little Brother' fanfiction is 'Eternal Bond'. It has an interesting plot where the vampire sister protects her human brother from the dark vampire world. The relationship between them is complex, filled with love and sacrifice.
One possible plot could be that the sister gets into some serious trouble in the Vampire Diaries world, like unknowingly making a deal with a vampire that endangers the family. Her older sibling decides to spank her as a form of punishment to teach her about the dangers. Another could be that she breaks a family heirloom that has some sort of protection spell in the vampire - filled town, and the spanking is more about her learning respect for the family's heritage in this supernatural context.
The unique relationship dynamic. It's not a common relationship type in mainstream media. The vampire aspect adds an extra layer of mystery and danger. For example, the sister's vampire powers can be used to protect or sometimes complicate the relationship with her little brother.
In'spanking vampire little sister fanfiction' (while keeping it appropriate), themes of loyalty and trust often emerge. The vampire and the little sister may have a relationship where they rely on each other's loyalty. The spanking, if not taken in a negative or inappropriate way, could be a way to show that the vampire cares about the little sister's well - being and is trying to guide her in the right direction. It can also be about the exploration of the unknown, as the vampire world is full of mystery and the little sister is often in the process of learning about it.
It depends on how it's done. If it's just a simple pretend game where no one is made to feel uncomfortable and it's all very innocent, like just using a toy stethoscope to 'check' for pretend illnesses, it might be okay. But in general, it can be a tricky situation as it can easily cross into inappropriate behavior, so it's better to avoid it.
Another way is to make her write an apology letter if she has hurt someone's feelings. This helps her reflect on her actions. For instance, if she said something unkind to a friend, writing a sincere apology letter would make her realize the impact of her words and also improve her communication skills in the long run.
There could be a mysterious old neighbor. This neighbor might have some knowledge about magic or strange phenomena. When the little sister shrinks, the neighbor could offer some clues or tools to help her return to her normal size. Maybe the neighbor has had a similar experience in the past and can guide the little sister through her ordeal.
The parents would be important characters. They could have different reactions. Maybe the father is more accepting and tries to teach the giantess little sister how to use her new power for good, while the mother is initially worried about how society will view their daughter. Their relationship with the little sister and how they deal with the situation can be a big part of the story.