Lemon fanfiction usually contains inappropriate content, so I can't recommend any. But if you're interested in Keith and Allura's relationship in a more positive and appropriate way, you could check out the official Voltron forums. There might be some fans discussing their relationship and even sharing their own non - inappropriate fan - made stories or interpretations.
Rather than seeking 'lemon' fanfiction which is often not suitable, consider looking for stories that focus on the emotional bond between Keith and Allura. You can search for tags like 'Keith and Allura relationship' on various fanfiction platforms. This way, you'll likely find stories that are more in line with the positive aspects of their connection in the Voltron universe.
As lemon fanfiction contains adult or inappropriate content, I cannot direct you to such sources. It's better to focus on proper and family - friendly fanfiction platforms like FanFiction.net and AO3, where you can find well - written stories about Keith and Allura's relationship without any inappropriate elements.
Love and friendship is also a major theme. Some fanfictions focus on a romantic relationship between them, while others emphasize their strong friendship. In either case, their relationship is often at the center of the story, with elements of loyalty, sacrifice, and growth.
One common theme is the exploration of their cultural differences. Keith comes from a different background compared to Allura, and fanfictions often play around with how they bridge that gap. For example, in many stories, they teach each other about their respective cultures, which enriches their relationship.
I really like 'Keith and Allura: A New Bond'. It delves deep into how their personalities complement each other. It shows Keith's reserved nature and Allura's strong leadership skills coming together in a unique way. There are also some really touching moments between them that make it a great read.
The fanfiction 'Allura's Trust in Keith' is quite engaging. It focuses on how Allura gradually comes to fully trust Keith, which is a crucial aspect of their relationship. It has some great scenes where they have heart - to - heart conversations and learn more about each other's pasts, strengthening their bond.
One great Keith Allura fanfiction is 'Bonding Beyond Stars' which beautifully explores their relationship as they face challenges together in the universe. It has a great plot that keeps you hooked from start to finish.
One challenge could be time management. They are both important figures in the fight against evil in the Voltron universe. So, finding time for each other between battles and diplomatic meetings would be tough. For instance, Keith might be called away on a dangerous mission right in the middle of their anniversary celebration.
Many Keith fanfictions also take on different genres. Some are action - packed adventures where Keith leads the team into dangerous battles against new foes. Others might be more of a coming - of - age story, with Keith learning valuable life lessons as he matures within the story's universe.
A possible plot is that Keith and Allura's marriage is part of a political alliance to strengthen the coalition against the Galra. In this story, they initially have a rather formal relationship based on duty but gradually fall in love as they work together to bring peace. They could also have to deal with secrets from their pasts that surface during their marriage. Maybe Allura discovers something about Keith's family history that makes her question their relationship at first, but they work through it.
A prevalent theme is sacrifice. They might be put in situations where they have to sacrifice something for the sake of their relationship or for the greater good. Also, the theme of cultural exchange is common. Allura's altean culture and Keith's human (or part - galra) culture can be explored as they get closer, leading to interesting interactions and character development.