How about 'A mysterious package arrives at your doorstep, and it changes your life forever'? This prompt leaves a lot of room for imagination and can lead to various plot developments.
One could be 'A time traveler gets stuck in the past and has to find a way back'. It's full of potential for adventure and drama.
One good prompt could be 'Imagine a world where time runs backwards in a novel. How would the characters' lives be different?'. This can lead to really unique storylines as it flips the normal concept of time.
One creative prompt could be to imagine you are a peasant during the French Revolution. Describe your daily life, the fear of the guillotine, and how the political unrest affects you. This allows for a vivid exploration of a historical event from an ordinary person's perspective.
A prompt like 'Imagine a world where people can communicate only through music. Write a short story set in this world.' In this world, emotions, ideas, and stories are all conveyed through melodies and rhythms. A character might struggle to express their love through the right musical notes, creating a poignant and unique story.
One great love prompt for fanfic could be 'Two characters from different worlds fall in love during a journey together.' This allows for a lot of exploration of their differences and how love can bridge those gaps. For example, in a fantasy fanfic, a human and an elf might meet while on a quest to save their respective lands. Their love story can then be intertwined with the challenges of the quest and the cultural differences between their races.
One sex prompt could be 'A forbidden love between a vampire and a werewolf that leads to a passionate encounter in a moonlit forest.' Another could be 'Two characters from different historical eras are brought together by a magical spell and discover a new level of intimacy.'
You could write about a magical adventure in a fantasy world. Maybe a hero discovers a hidden power and has to save the kingdom.
One good prompt could be 'The time when a family member surprised us all.' Another could be 'A family vacation that changed everything.' And 'The family heirloom and its story.'
A mysterious old house on a hilltop could be a great prompt. You can build a story around who used to live there, what secrets it holds. Maybe there are strange noises coming from it at night and a curious kid decides to investigate.
A young artist moves to a big city and has to overcome numerous obstacles like poverty and rejection to achieve their dream of having their work shown in a major gallery. There can be themes of perseverance, the power of art, and the harsh reality of the art world.
A mysterious old house at the end of a desolate street. You can start with a character being drawn to it out of curiosity, and then strange things start to happen, like hearing unexplained noises or seeing shadowy figures.