You can try some popular fanfiction websites like Archive of Our Own (AO3). There are often a wide variety of fan - created stories on there, and you might be able to find some 'lefty x helpy fanfiction' among the many works available.
Well, in some 'lefty x helpy fanfiction', they might be in a post - apocalyptic world. Lefty could be a tough survivor while Healy is more of a healer type. They meet and form an alliance. Lefty protects Healy from the various threats out there, like raiders, and Healy helps Lefty deal with his emotional scars from all the fighting and loss he has experienced. This dynamic can create really interesting storylines.
To write it well, use vivid descriptions. For example, describe how Helpy might look at Lefty with admiration in his eyes. Also, make the dialogue believable. Have them talk in a way that suits their characters. And don't be afraid to add some conflict, like if there's something keeping them from being together right away.
Definitely not a true story. FNAF is a work of fiction that takes place in a fictional world with its own set of rules and scenarios. It's all about creating a thrilling and immersive gaming and storytelling experience, not reflecting reality.