She might get angry. Katniss has a fiery side, and seeing Peeta with another girl could trigger that. She could give Peeta the cold shoulder and refuse to talk to him.
Katniss might be initially shocked. Given her own tough exterior, she may quickly try to restrain Peeta without overreacting. She could be more concerned about what's causing his flashback rather than her own injury at first.
They're appealing because fans of 'The Hunger Games' were really invested in Katniss and Peeta's relationship in the original story. Fanfics allow for more exploration of their love, like filling in the gaps the books or movies might have left. For example, their relationship in the aftermath of the games wasn't fully explored in the original works.
Survival in a new context is also a theme. They had to survive the Hunger Games, and now they have to survive the challenges of raising a child in their post - Games world. For instance, protecting the baby from any threats that might still lurk in their society.
In such fanfiction, it could lead to a completely different dynamic between them. Maybe their relationship would be more openly affectionate and less conflicted.
If Katniss loved Peeta before the Games in fanfiction, it might lead to a less conflicted romance and a different power balance in their relationship. Maybe they would work together more seamlessly from the start.
In such fanfiction, it could completely change the dynamic of their relationship and how they approach the Games. Maybe they'd be more confident and united in facing the challenges.
The main appeal of katniss peeta lemon fanfiction is the exploration of their relationship. Fans love to see different aspects of their love, like the passion and the tender moments that might not be fully explored in the original work.
Perhaps a scenario where they are dealing with the psychological aftermath of the Games without actually being in them. They could be supporting each other through nightmares and flashbacks, and in the process, become closer. They might also start a support group in District 12 for others who have similar traumas from the Games.
You can try some well - known fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, including 'Peeta and Katniss' ones. Just search for the relevant tags and you'll likely find many options.