One idea could be a story where Athos, Porthos, and Aramis go on a secret mission together. They face many challenges and have to use their unique skills to overcome them. For example, Athos' calm leadership, Porthos' strength, and Aramis' charm and intelligence all play a part in the success of the mission.
A great plot twist could be that one of them is secretly working for the enemy all along. For instance, it seems like Athos is on their side, but then it's revealed that he has been manipulated into helping the opposing force. This would shatter the trust within the group.
Aramis could choose to confront Athos directly. He might say something like 'Athos, what you did really hurt me. I don't understand why you would say such things.' This way, he gives Athos a chance to explain himself and they can start to resolve the issue.
Maybe Athos is jealous of Aramis. For example, if Aramis gets more attention from a certain person they both care about, like a mutual friend or a love interest. This jealousy could lead him to say or do things that unintentionally or even intentionally hurt Aramis's feelings.
You can find athos aramis fanfic on some popular fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics related to various fandoms, including the Musketeers, where you can easily search for athos aramis fanfic.
One possible scenario could be that Athos made a critical comment about Aramis' skills in combat. For example, he might have said something like 'Your swordplay lacks the necessary precision lately, Aramis.' This could really hurt Aramis as he takes pride in his combat abilities. It could lead to a rift between them, with Aramis feeling betrayed by his friend's lack of support and confidence in him.
One popular athos aramis fanfic is 'The Bond of Brothers'. It beautifully explores their relationship, with well - written dialogues that bring out their loyalty and camaraderie. Another is 'A Musketeer's Journey' which delves into their adventures together in a very engaging way.
Aramis and Anne fanfic is appealing because it allows fans to take these two characters and put them in new and interesting situations. It could be a story of adventure where they journey together to find a lost treasure. This would show their skills and how they complement each other during the adventure.