A simple plot could be that Diego and Sid find a mysterious object in the ice. They both have different ideas about what it is and what to do with it. Their bickering and attempts to figure it out could be really fun to write about.
One possible fanfiction could be about Diego and Sid going on a special adventure together. Maybe they get separated from the herd and have to rely on each other's unique skills to survive. Diego's hunting abilities and Sid's knowledge of different plants and hiding spots could combine to make for an exciting story.
There could be a story where Diego and Shira compete in a friendly competition to see who can hunt the most prey in a day. It would show their competitive sides and also how they respect each other's abilities.
A fanfic could focus on the relationship between Diego and Shira. Maybe Diego wants to show Shira a special place he found in the Ice Age wilderness. It could be a beautiful hidden valley with warm springs. Along the way, they talk about their pasts, how they became the tough sabers they are now. And at the end of the journey, their bond grows even stronger.
In the Ice Age series, Diego and Shira make a great couple. A fanfic about their love could explore their initial attraction. Maybe it started during a dangerous hunt when they had to rely on each other. Diego's bravery and Shira's cunning would be a great combination. Their love story could also involve how they overcame differences in their pack mentalities. Diego was from one group and Shira from another. But love has a way of bridging such gaps.
They might have a friendly competition. For example, they could see who can hunt the biggest prey in a day. This would not only show their skills but also add some fun and flirting to their relationship. It could also lead to them respecting each other more.
A fanfiction idea could involve Diego and Shira's relationship. They might have an argument over how to protect their group. Shira could think Diego is being too overprotective, while Diego believes Shira is taking too many risks. But in the end, they realize they both have the same goal and make up, strengthening their bond.
In a fanfiction, Diego and Shira could be on a mission to save a group of baby animals that got separated from their families during a big ice storm. Along their journey, they share their past experiences with each other. Diego tells Shira about his time with Manny and the others, and Shira opens up about her own struggles. This sharing brings them closer together.
The fanfic could focus on their emotional connection. Diego might be the first one to open up, sharing his past experiences with Shira. This vulnerability could make Shira fall for him even more. Their love could be a slow - burning one, starting from friendship and gradually evolving into something deeper.
Once upon a time in the Ice Age, Sid, the sloth, found himself in a rather strange situation. He was magically transformed into a woody animal. He had a tough, bark - like exterior but still had his goofy sloth personality. Sid, now looking like a walking tree stump, tried to blend in with the forest. But his clumsy movements gave him away. His friends Manny and Diego were both confused and amused when they saw him. They couldn't stop laughing at how Sid waddled around as this odd woody creature.