This was a short but interesting read.
SPOILERS BELOW
It starts with a backstory scene on abuse, and the rest of the story is a sexual scene which seems to address this backstory.
Brains are weird, and some fetishes come from trauma.
That's very interesting!
This feels like an exploration of this development, and honestly would've loved a longer and more thorough exploration of these characters' interaction and emotions.
In summary, a good premise that with deeper exploration and polishing would be enhanced!