The relationship could be one of mentorship. Lancelot, with his knightly wisdom, could mentor Sonic, who is new to the ways of the knights. Sonic would be eager to learn and Lancelot patient in teaching.
At first, their relationship could be a bit rocky. Sonic is used to his own way of doing things and Lancelot has his strict knightly code. But as they spend more time together, they start to understand each other better. Sonic learns about honor from Lancelot and Lancelot learns about Sonic's quick thinking and adaptability, which in turn deepens their bond.
One plot idea could be Lancelot training Sonic in the ways of the knights. Since Lancelot is a skilled knight, he could teach Sonic about honor, chivalry and different combat techniques. This would be interesting as Sonic's fast - paced and impulsive nature would contrast with Lancelot's more traditional and disciplined approach.
Sonic, being a hero from a different time and place, would likely start off by challenging Lancelot's more traditional ways. Lancelot would be confused by Sonic's strange appearance and abilities. However, as they face challenges together, like protecting a village from bandits, they would start to understand and respect each other. Sonic would show off his speed - based combat moves, and Lancelot would display his sword - fighting skills. They'd learn from each other's fighting styles and develop a mutual admiration.
To write a good Sonic x Lancelot Lemon fanfiction, you should start by establishing a connection between Sonic's fast - paced world and Lancelot's medieval one. The lemon can be used to bridge this gap, maybe it has properties that are relevant to both their worlds. Develop their relationship gradually, showing how they overcome differences. Use vivid descriptions of the settings and action scenes to make the story exciting. And don't forget to proofread for grammar and spelling errors.
One possible scenario in this fanfiction could be Sonic's super speed being a great asset in a medieval battle alongside Sir Lancelot. Sonic could use his speed to quickly deliver messages or scout the enemy's territory, while Lancelot uses his combat skills. Their partnership would be an interesting dynamic, as Sonic comes from a very different world than Lancelot.
A common theme is the clash of different cultures. Sonic is from a modern, fast - paced world, while Lancelot is from a medieval, chivalric world. So there's often a theme of how they adapt to each other's cultures.
One possible plot could be that Sonic accidentally gets transported to the Arthurian era where he meets Sir Lancelot. Lancelot is initially suspicious of this strange, fast - moving creature but soon realizes Sonic's good heart. They then team up to fight some common enemy that threatens both Sonic's world and Camelot, like an evil wizard who wants to steal the Chaos Emeralds and the Holy Grail.
I've also come across 'Sonic's Encounter with Lancelot: A Tale of Two Heroes'. In this fanfiction, Sonic is accidentally transported to the world of King Arthur where he meets Lancelot. The story is full of action as Sonic tries to find a way back home while also helping Lancelot in his quests. It has some really interesting character developments, especially when Sonic has to adapt to the medieval world and its rules, and Lancelot has to understand Sonic's super - speed abilities.
One possible plot could be that Sonic, with his super speed, accidentally enters a different dimension where he meets Lancelot. They initially clash due to their different natures but then gradually form an alliance to face a common enemy. And the 'lemon' aspect could be some kind of strange energy or fruit that has special powers in that dimension.
You can try looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. They usually have a large collection of various fanfictions, and there might be some related to Sir Lancelot and Sonic.
In this fanfiction, there could be a magic - related plot. Suppose there is a powerful dark magic that threatens both Sonic's world and Lancelot's. Sonic's pure heart and Lancelot's strong will could be the keys to breaking this magic. They would have to go on a quest together, facing many challenges along the way. Sonic's ability to think quickly and Lancelot's battle experience would be crucial in this adventure.