A Supernatural RPF with Jensen as a prison officer and Misha, one of Jensen's charges. I can't say this is the most original type of plot, where you have the dominant and possessive prisoner wrapping the new and young prison officer around his fingers (both figuratively and literally speaking). But the sex was explosive and the relationship dynamic (though unoriginal) still manages to make my body temperature soar in the danger zone. This is definitely a quick read, and by the end, I was intrigued enough to want and see how things will progress.
So, if you're looking for a (short) prison story focusing on a D/S type of relationship dynamic, give Po Lazarus a go!