I would really love Kurt and Blaine to have a secret long term relationship with people finding out at some point or Kurt/Blaine finally telling them.
They can know Blaine or he can be a complete stranger to them.
I would love the girls to ask Kurt hundreds of questions about his new found out relationship.
It could also be a fic where one person (OC) doesn’t know about the relationship and (finally) finds out. Could be a future fic.
I would love to read any fic with a storyline like this or where it’s part of a story.