This took so long to answer Im sorry bbg!!!

My favourite fic currently is "Beloved beneath the moonlight" by ChaoticQuill

https://archiveofourown.org/works/52198660/chapters/132032533

Its such a perfect mix of emotional and steamy (E-rated) but a lot of Quill chuuatsu fics are instant recommendations from me ahaha

And there's also "From the voice of a stranger" by Sneaky_Hawk

https://archiveofourown.org/works/28146123/chapters/68964786

Those who've known me long enough, know that this fic is the one that inspired me to start actively writing bsd fanfiction. It'll always have a place in my heart for that ^^