- Blaine and Kurt already know each other and NOT meet as doctor and patient
- They are already together
- It canon at least until the end of Season 3 after that it can be AU
The storys can be on Fanfiction net, AO3, tumblr or livejournal.
It can be just a drabble or a long fic.
The point is that Blaine decided to be a doctor because of something, the actual story line can be anything.