Well, in a 'camp camp david x gwen fanfic', it could be about their adventures together at camp. Maybe they have to deal with a difficult camper situation, and through that, their bond grows. It could also be a romantic take on their relationship, showing how they gradually fall for each other, despite their initial differences. David's positive energy might start to melt Gwen's cold exterior in the story.
A 'camp camp david x gwen fanfic' might explore the relationship between David and Gwen in the context of the 'Camp Camp' universe. It could involve their interactions, how they support or conflict with each other at the camp. For example, it might focus on their different personalities, with David being overly enthusiastic and Gwen being more cynical, and how these traits play out in their relationship within the fan - created scenarios.