So my friend and I have epically failed to recall the title and author of a certain fic. Here's what we remember:

Jensen was a were!panther and hid this from jared, who was human. One or both of them were teachers and Jensen knew Jared was his mate. They do fall for one another, but when Jared discovers Jensen's "secret", he's not ready to commit to Jensen.

Jensen flies back to his pack land (somewhat remote) and Jared eventually goes after him. Jared has to participate in some type of a mating chase and he's told he can't make it easy for Jensen to catch him.

The story ends with them together.

We both recall reading it on AO3.

Found it (link in first comment).