Fanfiction.net might also be a good place. There are a lot of Supernatural fanfic writers there. However, the search might be a bit more challenging compared to AO3. You may need to browse through different categories related to the show and look for the specific 'Cas and Dean kiss' themed stories.
You can try some popular fanfiction websites like Archive of Our Own (AO3). It has a vast collection of Supernatural fanfictions, and you're likely to find many stories about Cas and Dean with their romantic moments. Just use the search function and type in relevant keywords.
I really like 'The Kiss in the Rain'. It's a bit of a classic in the dean and cas fanfiction world. The rain - soaked setting for their kiss adds a lot of drama and emotion. The story around it also does a good job of showing how their relationship has evolved over time.
One common theme is the struggle with their identities. Both Dean and Cas have complex identities and in many fanfictions, their kiss is a moment of acceptance of themselves and each other. For example, Cas coming to terms with his feelings as an angel while having human - like emotions for Dean.
One common theme is the revelation of hidden feelings. For a long time, they may have been suppressing their emotions for each other, and the first kiss is like the breaking of a dam. Another theme is the acceptance of a new aspect of their relationship. It's not just about being friends or hunting partners anymore. And finally, there's often a sense of new beginnings, as if this kiss opens up a whole new world of possibilities for their relationship.
Well, in many Cas and Dean first kiss fanfictions, it often occurs in a moment of high emotion. Maybe after they've just saved each other from a dangerous situation. The writers usually build up a lot of tension between them first. For example, there might be lingering looks and unspoken feelings for a long time before that first kiss. It's a way to explore their relationship deeper than what's shown in the original series.
One popular trope is the 'hurt/comfort' scenario. For example, Dean gets injured on a hunt, and Cas takes care of him, which leads to a tender moment and a kiss. It plays on the emotional bond between them and the protectiveness they feel for each other.
One great 'dean and cas fanfiction' is 'AUs Galore' which explores different alternate universes for the characters. It's really interesting as it shows different sides of their relationship.
One great piece of Supernatural Dean Cas fanfiction is 'AUs Are Made of This' which offers a really interesting alternate universe take on their relationship. It's full of heart - warming moments.
You can start by looking on popular fanfiction platforms like Archive of Our Own (AO3). There are tons of stories there. Just type in 'Dean and Cas first kiss' in the search bar, and you'll get a long list of relevant fanfics. You can also check out Tumblr. Some fans might post links or even write short ficlets about it there.
Sure. One great Cas and Dean fanfiction is 'AUs Galore' which explores different alternate universes for the two characters. It's full of interesting scenarios and great character development.
The idea of 'forbidden love' is also common. Maybe because of their different natures (Dean being a hunter and Cas being an angel), or because of some external forces like the rules of their respective groups. This adds an extra layer of drama to the story. And of course, there's the theme of pure, unadulterated love where the kiss is just a beautiful expression of their deep feelings for each other.