Embarrassed to ask

[Guest curious]

Many years ago I read a fic where the main character was enslaved or maybe just kidnapped (I believe an elf) and humiliated in various ways, including having marbles shoved up his butt and being forced to crawl around, and being tied up to a statue with the statue’s erect phallus up his butt. I have, embarrassingly for my search engine history, tried every possible combo of those details that I can think of. Is this raunchy fic ringing a bell for anyone?