This is exactly how I love this ship, and basically this takes place after the gang has been through hell and back over the last 5 years.
Derek is so stoic, aloof, and unreadable - but there's snatches of actual feelings that come through.
Stiles is actually a saint with his patience and yearning - until he isn't.
There's a verbal confrontation, a heart melting confession - shenanigans (*waggles brows*) ensue.
Where the hell is the rest of it???