I'm not entirely sure what specific fanfic this is, but it might involve exploring Michael Mell's character in a bathroom - related scenario in the context of the BMC (Be More Chill) universe. Maybe it shows his thoughts or experiences while in the bathroom, which could be used to develop his character further or create an interesting and unique story.
One great 'Wheatley x Chell' fanfic is 'The Unlikely Bond'. It beautifully explores their relationship post - Portal events. The author does a wonderful job of showing Wheatley's growth and his newfound understanding of Chell, and how Chell might come to see him in a different light.
The plot could center around Michael using the bathroom as a place to practice his lines if he's involved in a school play in the BMC story. While in there, he might be interrupted by another character, and this encounter could lead to a deep conversation or a new friendship. This would use the bathroom setting as a catalyst for character development and relationship building in the fanfic.
Romance is a very prominent theme. Given the unique relationship between Wheatley and Chell in the game, many fanfictions explore the romantic aspect of their relationship. This could range from a slow - burn romance where they gradually realize their feelings for each other, to more immediate and passionate love stories. Writers often play with their personalities, Wheatley's clumsy but endearing nature and Chell's silent determination, to create interesting romantic dynamics.
Obviously, Chell is the main character. There could also be other characters from the original story that interact with Chell during her transformation into a core. Maybe some mentor - like figures who guide her through the process, or antagonists who try to stop her from achieving this new status.
Perhaps the fanfic focuses on Chell's character development as she becomes a core. It might involve her facing various challenges and obstacles that test her newfound identity. She could start off as an outsider but gradually gain the respect and recognition of the other elements related to the core through her determination and unique skills.
In 'Portal 2' fanfic, Wheatley and Chell have a complex relationship. Wheatley starts as a somewhat helpful, if bumbling, character. He's supposed to assist Chell in her test chambers, but his actions often lead to chaos. Their relationship is full of humor at first, with Wheatley's silly remarks and Chell's silent but determined reactions. However, as the story progresses, Wheatley's actions take a more sinister turn when he gets power - which creates a rift between them. Overall, their relationship is a key aspect that drives much of the fanfic's drama and plot twists.
Character development is key. A good 'Wheatley x Chell' fanfic should show how both characters change and grow in relation to each other. For example, Wheatley could go from being a bumbling idiot to someone Chell can truly rely on.
You can try some popular fanfiction websites like Archive of Our Own (AO3). There are a large number of fanfictions on it, and you can easily search for 'wheatley x chell' fanfictions using the search bar.
Wheatley is very significant in the 'Portal 2' Wheatley x Chell fanfic. He serves as a source of both humor and conflict. His bumbling nature at the beginning makes for some funny moments, especially when contrasted with Chell's more serious and determined personality. Later, when he becomes a villain of sorts, he drives the plot forward by creating obstacles for Chell. His character development, from a seemingly harmless sidekick to a powerful antagonist, is a major factor in the fanfic's overall narrative arc.