What could be the possible plot in 'castle sees beckett with another man fanfic'?

He might get jealous right away. He could storm off and then later come back to confront Beckett about it.

One possible plot could be that Castle sees Beckett with Josh and it makes him realize his true feelings for her. He might then start to compete for her attention in a humorous and endearing way, like writing a new novel inspired by his jealousy and love for her.

In this fanfic situation, Castle seeing Kate kissing another man could be a misunderstanding. Maybe the man is an old friend or relative of Kate's and it's just a friendly kiss that Castle misinterprets. So, the plot could then be about clearing up this misunderstanding and Castle and Kate getting back on track.

Another thing that could occur is that Castle decides to confront Beckett about what he saw. He could be really straightforward and ask her what's going on between her and Vaughn. This could lead to an argument or a really honest conversation about their relationship.

One possibility is that Castle has booked the hotel for a romantic getaway by himself, and seeing Beckett there completely throws him off. Beckett could be there for a much more serious reason, like following a lead on a dangerous criminal. Castle may start to worry about Beckett's safety and decides to stay close to her. As they interact more within the hotel, they might realize how much they've missed each other's company, and this chance meeting could be the start of something new between them, whether it's a new level of friendship or a re - awakening of their romantic feelings.

He could react with anger. After all, if he has feelings for Beckett, seeing her with someone else like Vaughn might make him furious. He might lash out at both Beckett and Vaughn without really understanding the situation.

The plot could develop in many ways. For example, if it's a mystery - focused fanfic, Beckett's presence at the hotel could be linked to a big mystery. Castle, being a mystery writer, would be eager to get involved. They might start investigating together, exploring different parts of the hotel. As they do so, they could face various challenges and obstacles, which would bring them closer together. Along the way, they could also discover secrets about each other that they didn't know before.

He might react with jealousy. He could glare at Josh and then give Beckett a hurt look before storming off.

One possible reason could be that they are on a secret mission. Maybe they are trying to protect a key witness or important evidence from a powerful and dangerous criminal organization. In the world of fanfic, this could lead to them having to disappear to keep their whereabouts unknown.

The plot could be centered around a misunderstanding. Beckett might think Castle is interested in someone else, and this causes some tension between them. But as they work through the case, they start to realize their true feelings for each other. The first kiss could come when Castle finally clears up the misunderstanding, and they share a tender moment.