I don’t particularly ship this, especially since I have aro default headcanons for both of them, but I’m always down for friend adventures! I assume that’s what you’d want anyway.
who’s the werewolf and who’s the hunter
Combeferre’s not so much a hunter as a wandering naturalist who sometimes goes deeper into the forest than is advisable. Probably he should be more shocked to encounter a werewolf than he is, but to be honest he’s too busy being excited that he’s met a non-human he can interview as well as observe. True, the wolf he found likes to answer his questions in the forms of riddles or short poems, but data are data so he copies it all down diligently.
Prouvaire becomes the first werewolf to have a published poetry collection in an academic journal.
who’s the mermaid and who’s the fisherman
Ok, listen –
Both fascinated with human culture.
Both make a deal with a (non-murderous, very reasonable) sea witch and disguise themselves as human fishermen (so they can stay near the ocean).
Cue wacky comedy hijinks where they both try to pass themselves off as Totally Human Fishermen and wind up as neighbors, neither knowing that the other is actually a merman. HELLO FELLOW HUMAN, LET US DISCUSS NORMAL HUMAN THINGS. HAHA YES I TOO LOVE HUMAN ACTIVITIES, LIKE WALKING WITH FEET.
They’re neither one learning as much about human culture as they think they are, but at least they’re having a great time.
who’s the witch and who’s the familiar
Prouvaire is a witch, Combeferre is a local forest elemental he lured in with the promise of books.
who’s the barista and who’s the coffee addict
Combeferre is the barista, Prouvaire is the customer who religiously goes to this one coffee shop because he can show up with ridiculous and fanciful custom orders (“last night I had a dream about a coffee that tasted like starlight…”) and Combeferre will take it as an interesting challenge rather than an annoyance.
The two of them have assembled an entire secret menu of drinks together and there are urban legends about what’s on it. There’s at least one blog devoted to chronicling the handful of known drinks regulars have sussed out.
who’s the professor and who’s the TA
Combeferre teaches philosophy in a tiny university with like 5 philosophy grad students – all of whom are busy TAing required first year courses. When Combeferre realizes he needs an assistant from outside the department, the lit department sends over Prouvaire.
It certainly makes class more fun to teach, even if Combeferre makes sure Prouvaire shows him the comments he puts on papers before they go back to the students. Sometimes they need a little…clarification. (Combeferre’s made a collection of his favorites comments, and he suspects Prouvaire puts some of them in just to make Combeferre smile.)
who’s the knight and who’s the prince(ss)
Prince Jehan talks Paladin Combeferre into giving him secret fighting and magic lessons.
who’s the teacher and who’s the single parent
Combeferre’s the teacher, but no one’s quite sure what Prouvaire is. Probably a parent? Why else would he be at all the PTA meetings? But no one can figure out who his kid is either.
(It’s Gavroche; he brings school fliers and waviers and everything else to Bahorel and Prouvaire, who fill in for some of the the parent stuff his own parents never do. But it’s never occurred to either of them that they should tell the school this, hence the confusion.)
who’s the writer and who’s the editor
They both write, and they both haaaaaaaaattttttttte editing their own work and thus have an exchange system worked out. The moment an article or story or poem is “done” they throw it at the other, swearing they never want to see it again. This works quite well for both of them.