One plot idea could be that the gender - swapped vampire babysitter has to deal with different social expectations in the human world while still trying to hide their true nature. For example, they might struggle with how to interact with the kids in a more 'gender - appropriate' way according to human norms while also having to keep their vampire instincts in check.
A possible plot could be that the gender - swapped vampire babysitter uses their new gender to their advantage in the vampire community. In the original, certain things might have been limited by their old gender. Now, they can break those barriers and rise to a new position of power within the vampire hierarchy, all while still babysitting the human kids and dealing with the challenges that come with that.
Maybe the gender - swapped babysitter vampire falls in love with a human in a different way than in the original story. Since they are now a different gender, their approach to love and relationships could change. They might be more hesitant or bolder, depending on the new gender's characteristics, and this could create a whole new set of romantic sub - plots.
One idea could be that the vampires become the babysitters instead of the humans. They could struggle with the normal human tasks like making snacks or putting kids to bed in a very comical way.
One idea could be that the vampire babysitter has to protect the kids from an ancient vampire hunter who mistakes the babysitter for a rogue vampire. Another could be that the kids discover a secret power within themselves that helps the babysitter in her vampire - related troubles. Maybe the babysitter has to attend a vampire council meeting and the kids accidentally tag along and cause chaos.
One idea could be an OC who is a new vampire in town and befriends the babysitter vampire. They could team up to protect the neighborhood from a new threat, like a group of werewolves.
Maybe the vampire's pregnancy is the result of a unique vampire ritual. The babysitter has to figure out how to raise a half - vampire baby in a human world. She could start to teach the kids she babysits some vampire - friendly things to prepare them for the new addition.
A nosy neighbor character could be great. They might suspect something strange about the gender - swapped vampire babysitter and start poking around. It adds an element of mystery and danger as the babysitter has to be extra careful not to be discovered.
One idea could be exploring the backstory of the vampire babysitter more in - depth. Maybe she has a hidden past in a different vampire clan that she's trying to keep secret from the family she babysits for.
One plot idea could be that the Jessie OC has a special power that is hidden from the other vampires. For example, the ability to see the future which she uses to protect the family she babysits for from impending vampire threats. Another idea is that she is from a different vampire clan and has to keep it a secret while babysitting, and there could be a conflict when members of her clan come looking for her.
Another interesting idea is to focus on the relationship between the babysitter and the kids they are taking care of. What if one of the kids finds out about the vampire nature in a really cute or funny way? It could lead to some heartwarming and humorous moments in the fanfiction, like the kid trying to keep it a secret while also being super curious.
In this type of fanfiction, a big aspect could be the change in the ponies' personalities. A male - turned - female Applejack might be more nurturing while still maintaining her strong - willed nature. And when it comes to the adventures they go on, a gender - swapped group of ponies might approach challenges in a whole new light. They could use different skills or strategies that are more associated with their new genders, adding a fresh twist to the familiar Equestria - based stories.
Another idea is that the characters from 'My Babysitter's a Vampire' are brought to the Naruto world. They are shocked by the existence of ninjas and the different kind of powers. The babysitter, who is a vampire, could use her vampiric abilities to help Naruto in a battle against a powerful enemy, while Naruto helps her adapt to this new and strange world.