[Help] finding a story

I remember reading a story, maybe 6 or 7 years ago, and I would really love to find it again. Let me know if anyone has any ideas on where I could have found it or a title etc.

The story follows a guy, who on his summer break from college decides to go to a castle for a summer of submission, at the entrance he is told to strip off and cuff himself to a post next to another older man. After a while, a classmate of his that he has a crush on arrives and does the same. Eventually they meet the couple who are the masters of the castle, they take them inside to process them, they are each given a number based on what rank slave they are in the castle, number 1 being the highest ranked. They are offered to use the toilet (a slave buried in the ground) and the girls with the largest assets are forced into becoming hucows, branded and taken off to the cattle area.

That’s about as much as I can remember reading before losing the story and never finding it again

Source: reddit.com/r/Erotica/comments/x0lt0f/help_finding_a_story