There's also 'Pony and Dally: A Different Kind of Friendship'. In this fanfiction, it focuses on the moments after a big fight in their gang. Ponyboy and Dally find themselves relying on each other more than ever, and it shows the growth of their relationship from just being gang mates to true friends.
Another place to check is FanFiction.net. It's one of the oldest and most well - known fanfiction platforms. There are often different takes on the relationship between Ponyboy and Dally in the stories there. You may need to dig a bit deeper by browsing through different categories related to the source material.
To develop Ponyboy, focus on his sensitive side. In a lemon fanfiction, you could show how he reacts to new and intense emotions. For Dally, emphasize his tough exterior but also explore his vulnerability. For instance, Ponyboy could be the one to break through Dally's tough shell when they're in a particularly emotional moment.
One idea could be that Ponyboy discovers Dally has a hidden artistic side. For example, Ponyboy stumbles upon Dally's secret sketches of the gang members. This could lead to a deeper understanding between them and a new bond forms as Ponyboy encourages Dally to share his art with the rest of the gang.
His friends might be able to save him. If they notice his disappearance quickly enough, they could band together and search for him. Maybe they have some knowledge or items that can be used against the demon.
One common theme is redemption. Dally is often portrayed as a character who has made mistakes but is trying to make up for them. Another theme is loyalty, especially his loyalty to his friends in the gang.
Dallas could be a great addition. He has that tough exterior and his relationship with Johnny and Ponyboy is complex. His presence could add some drama and conflict. Another good character could be Sodapop. He's Ponyboy's brother and his kind and fun - loving nature could balance out the more intense moments between Johnny and Ponyboy.
In this fanfiction, it might be due to his poor living conditions. He doesn't always have the best food or a warm, clean place to stay. His body could be weakened from not getting enough nutrition, which makes him more likely to get sick. Also, the emotional turmoil he goes through with losing friends and dealing with the Socs could take a toll on his immune system.
One common theme is loyalty. Since they are part of the same gang, fanfictions often explore how loyal they are to each other, like in situations where one has to defend the other against outside threats.