One possible plot idea could be the struggle Harry has in adapting to the vampire world. For example, he might have to deal with new powers and instincts that his vampire mate has, which are completely different from what he's used to in the wizarding world. Another could be the reaction of his friends in the wizarding community. They might be shocked or even scared at first, but gradually come to accept it as they see how happy Harry is with his vampire mate.
Well, a great plot could be Harry learning about the vampire's long history and traditions through his mate. This would be a journey of discovery for him, and it could also create some cultural clashes and misunderstandings at first. Then, as they overcome these, their bond becomes stronger. There could also be a sub - plot about how Harry's magical abilities interact with the vampire's unique traits, like if his magic can enhance or be enhanced by the vampire's powers.
Perhaps a plot where Harry and his vampire mate face a common enemy. It could be a dark wizard who wants to use the vampire's powers for evil or is threatened by their union. This would lead them on an adventure to protect themselves and their relationship. Also, there could be a plot centered around the vampire society's reaction to Harry. Maybe they are hesitant to accept a wizard as a mate to one of their own.
Perhaps a key plot point is the challenges they face together. For example, they might have to deal with enemies who are against their relationship. Or it could be about how they combine their powers, Harry's magic and the mutant's abilities, to overcome difficulties. Also, the discovery of their mating bond in the first place could be full of mystery and drama.
One plot idea could be a female Harry Potter character finding herself in the Vampire Diaries' Mystic Falls. She could use her magic to deal with the vampire and werewolf politics there. For example, she might use a spell to protect herself from a vampire's compulsion. Another idea is that she teams up with Elena and the gang to fight a common enemy, like a powerful dark witch who has ties to both the wizarding world and the supernatural world of Mystic Falls. And she could introduce some unique magical items from the Harry Potter universe to help in their battles.
One idea could be that the Hogwarts students are sent to Mystic Falls for a magical exchange program. Harry could meet Elena and they discover a new dark magic that is related to both the wizarding world and the vampires. Another could be that a vampire from Vampire Diaries somehow ends up at Hogwarts and has to navigate the magical rules and classes while hiding their true nature from most students. A third idea is that the Death Eaters team up with some of the bad vampires in Vampire Diaries to create chaos in both worlds.
One plot idea could be that Harry, who has some vampire-like abilities, is in a love triangle with 'She' and another character. His 'big cock' aspect might symbolize his confidence and power in this complex relationship. Another could be that Harry, as a vampire, has to hide his true nature from 'She' while being drawn to her, and his unique trait adds an extra layer of mystery to the story.
One idea could be that Merlin, as a wizard, is hunted by vampires because his magic is seen as a threat to their existence. But then he discovers that some vampires are not as evil as he thought and they form an uneasy alliance to fight a common enemy, like a dark sorcerer.
Well, you could have a story where a small town is suddenly surrounded by vampires. The townspeople have to quickly learn how to defend themselves. Maybe they start using old - fashioned weapons like stakes and crossbows. And there could be a mystery within the town, like someone is secretly working with the vampires. This adds an element of suspense to the survival aspect.
One idea could be that the vampire bride discovers a hidden power within herself that can change the vampire world. For example, she might be able to walk in the sun without harm, which is unheard of among vampires. This new power could make her a target for some vampires who want to use it for their own gain, and a savior for others who are tired of living in the shadows.
One idea could be a modern-day vampire from the Interview with a Vampire universe trying to blend into a tech - savvy society. They might struggle with using smartphones and social media while also trying to hide their true nature. Another could be a story about a vampire who falls in love with a human who is a vampire hunter. It would be full of conflict as they fight their feelings and their natural instincts.
One idea could be that the vampire guardian has to protect a human from a rival vampire clan who wants to use the human for some dark ritual. Another could be the vampire guardian falling in love with the human they are protecting, which creates a whole new set of challenges and emotions.
Well, a great plot could involve the vampire boyfriend struggling with his bloodlust while being in a relationship with a human. For instance, he might accidentally bite his partner in a moment of weakness and then has to find a way to reverse the effects. Or perhaps he tries to introduce his human lover to his vampire family, which is full of all sorts of strange and ancient vampires with different personalities and motives.