Lin/Tenzin fic in its most basic form

There's a gap in the Lin/Tenzin genre. Heaps of fic about them being buddies as kids. Lots about them being teenagers and getting together for the first time. Some, though not as much as I'd like, about them after the end of the first season, rebuilding their friendship.

The problem is that what I really want to read today is fic where they're in their twenties and thirties, with an established relationship and no sneaking around or being teased by their parents, because they are adults.

So far I've found none. (Recs gratefully accepted!)

What I've mostly found is post-season 1 fic that looks like this. ( VERY SERIOUS FIC WITHIN. )