Yes, there are quite a few. You can check out fanfiction websites like Archive of Our Own. There you'll find a variety of 'by your comand' Sam and Dean fanfics. Some might focus on their adventures in a different supernatural setting, while others could be more about their relationship dynamics.
It's interesting because it can explore different aspects of the Supernatural world from a new perspective. The 'dean girl sam' fanfic might introduce new monsters or magical elements that are related to the girl's backstory, which enriches the overall Supernatural universe in the story.
I'm not exactly sure. It could be a newcomer actress who got the chance to shine in this role. Maybe you can check the official credits for the definite answer.
Love and relationship development is also a big theme. Writers often focus on how Sam and Jess fall in love, the obstacles they face, and how they overcome them. It could be things like misunderstandings or external pressures.
There could be a 'Sam and Max Girl Stinky Romance Fanfic' floating around on the internet, but it's not something that I can guarantee the existence of. Fanfic writers often come up with very creative and sometimes strange concepts. If you're really interested in finding it, you could also try reaching out to Sam and Max fan groups on social media platforms. They might be able to point you in the right direction.
There are also some good ones on Archive of Our Own (AO3). The 'dean girl sam' fanfics there can range from ones that explore their relationship development over time. For example, a story might start with them not getting along very well and then gradually becoming close friends as they face challenges side by side.
This type of fanfiction is rather controversial. On one hand, fanfiction allows for creative exploration of different scenarios. But in the case of Dean hitting Sam, it goes against the fundamental relationship dynamics that have been built up in the 'Supernatural' series. Their relationship is about brotherhood, sacrifice, and love. While some might argue that it could be a way to explore a character's breaking point or a very dark alternate universe, it still feels wrong given the nature of the characters as we know them in the main 'Supernatural' storyline.
In a 'Sam and Max Girl Stinky Romance Fanfic', the plot could start with Sam and Max encountering this girl in a rather stinky part of their world. At first, they are put off by the smell but gradually become intrigued. As they get to know her better, they discover she has a heart of gold. The story could then unfold with the girl joining them on their wacky adventures, and during these adventures, a romance blossoms between them. There could be challenges along the way, like other characters being repulsed by the girl's stinky presence, but Sam and Max stand by her side, and their love overcomes all these obstacles.