Ok now it might be because I've watched too much Game of Thrones but Skyrim seems like THE place for arranged marriages.
Whatever the reason for the arrangement can be up to A!As, political, status etc.
Basically lets just get some forces love up in here, and not the rapey kind...

OCs, DBs and NPCs are all welcome, as well as any race, gender or relationship type.
I also don't mind what kind of relationship the pair (or maybe more?) end up having (hate each other, love each other, tolerate each other, run away etc.)

So yeah... A!As feel free to do as you will with any arranged match you can think of.