Since the 'lemon' part makes it a bit ambiguous, but if it's a regular fanfiction about Luffy and Makino, it might explore their relationship in the context of Luffy's journey. For example, Makino could be a source of support for Luffy in a more emotional way, like when he has doubts about his role as a pirate. The fanfiction could show how their interactions develop over time and how they influence each other's lives.
I'm not sure specifically about 'lemon' fanfiction as it often refers to inappropriate or adult - themed content. However, there are many great Luffy x Makino fanfictions that focus on their relationship in a more appropriate way. You can check out popular fanfiction websites like FanFiction.net or Archive of Our Own and search for them there.
You can try some well - known fanfiction platforms that have strict content policies. For example, Archive of Our Own (AO3) has a filtering system. You can search for Luffy and Makino fanfictions there and look for ones that are rated as appropriate, without any inappropriate 'lemon' content.
I'm not sure about the specific 'luffy x reiju lemon fanfiction' but usually, in fanfictions, the plot could involve their unique interactions, adventures together, or exploring their relationship in ways not shown in the original story.
One idea could be that Luffy accidentally enters a world filled with lemon - themed islands. There, he meets characters who have powers related to lemons, like creating lemon - shaped shields or shooting lemon - juice blasts. And he has to use his Gum - Gum powers in new and creative ways to get along and find his way back to his own world.
Maybe they find a strange fruit that has the power to temporarily swap their abilities. This leads to some comical and also interesting situations. Luffy tries to use Robin's powers to reach for things in a more elegant way, and Robin attempts to use Luffy's stretching ability to explore hard - to - reach places. It also makes them understand each other's perspectives better.
One idea could be that Luffy accidentally stumbles into a parallel world full of female characters who are all smitten with him. Another could be that in a new island they visit, there are a group of girls who have unique powers and they all want Luffy to be their leader and partner. Maybe there's also a plot where a magic spell makes all the female pirates in the Grand Line be attracted to Luffy and they keep following his ship.
You can anticipate stories that delve into their backstories and how they intersect. For example, Makino knew Luffy since he was a child, so fanfictions might explore how that early connection influenced their relationship as Luffy grew older. Some might also show Makino's role in Luffy's life beyond just being someone from his hometown, perhaps as a source of emotional support during his tough times at sea.
There could be some luffy and carrot lemon fanfiction out there. However, it might be a bit hard to find. You could start by looking in One Piece - related fanfiction communities. Some fans might have written stories that involve their relationship in an interesting way. Just keep in mind that not all fanfiction is of the same quality.
One idea could be that Luffy accidentally eats a devil fruit that makes him see Boa Hancock in a new light. He starts to notice her charm in a more romantic way, but still retains his innocent and goofy nature. This creates a series of comical and heart - warming moments as Boa Hancock tries to understand his new behavior.
One idea could be Luffy accidentally eating a Devil Fruit that gives him the ability to create lemon - scented mirages. He uses this to fool his enemies during battles. Another could be a story where Luffy discovers a hidden island full of lemon - based treasures that are said to have special powers. And perhaps a plot where Luffy teams up with a lemon - loving character who has a unique fighting style that involves using lemons as weapons.