I remember this fic, I think it's pretty old,
Loki was on Jotunheim in his Jotun form, either he got left behind after the post-coronation battle, or maybe he went for answers after fighting with Odin.
He gets caught/arrested for trespassing in the temple
Loki gets recognised by his lines and becomes part of his Jotun family again. I think Helblindi likes him but maybe Byleister doesn't (at first)
There was a scent where one of his brothers takes him to a tavern and he gets challenged to a pit fight
I think at the end of the fic when they are all happy family Odin sends a letter to Laufey requesting a peace treaty via marriage between their sons so Loki has to go back to Asgard and marry Thor which wasn't /bad/ but there were sad feels about leaving his Jotun family
Thank you in advance <3