Perhaps there's a magical event that only Thomas and the lady human can solve together. They might have to use their combined skills and knowledge. Thomas could use his physical abilities like speed or strength, while the lady human could use her intelligence or some special power she has to defeat an evil force that threatens their world.
One idea could be that Lady and Tramp are reimagined as humans in a small town. Lady could be a kind - hearted girl who loves animals and volunteers at the local shelter, while Tramp is a bit of a rebel but with a heart of gold. They meet when Lady is out walking her own dog and Tramp's dog scares her a bit at first.
Perhaps there could be a story where Thomas and Edward compete in a friendly race. Along the way, they both learn important lessons about sportsmanship and friendship. For example, when one of them has a minor accident, the other stops to help, realizing that winning isn't everything.
They could get lost in an old, abandoned part of the railway. Thomas might be a bit scared at first, but Percy stays calm. Together, they explore the area, find old railway artifacts, and then figure out a way to get back to their normal tracks. It would be a story of discovery and courage.
One idea could be exploring how Thomas and Brenda prepare for the baby. Maybe they have to deal with unexpected challenges like finding a safe place to live in their post - apocalyptic world. Another plot could be centered around their fears and hopes for the future of their child.
One plot idea could be that the kiss is a result of a dangerous situation they've just overcome together. Maybe they were in a life - threatening situation, and in the relief of surviving, they share a passionate kiss.
One interesting Thomas human fanfiction could be about Thomas as a detective in a human - like world. He uses his wits to solve mysteries around his town. Another might be Thomas as a teacher, inspiring his students with his unique perspective.
One idea could be exploring the backstory of the 'lady of darkness'. Maybe she was once a good - hearted being who was wronged and that led to her transformation. Another could be her forming an unlikely alliance with a hero to fight a greater evil.
Another plot could involve the 'not - quite - human' character forming an unlikely friendship with a human. Through this relationship, they both learn about acceptance and the differences between their worlds. For example, the human could teach the non - human about things like music or art, while the non - human shows the human a different perspective on life.
One idea could be Gumball and Darwin as humans starting a new school and having to deal with the typical high - school dramas like popularity contests and bullies. Another could be the Wattersons going on a road trip as humans and the various adventures they have along the way. Maybe Gumball as a human gets a part - time job and has to balance work, school and his family life.
One idea could be a human mechanic who discovers Megatron in a damaged state and tries to repair him while hiding him from other humans and Autobots. This could lead to a complex relationship where Megatron starts to question his views on humans.