I wasn't going to do this to you, since Merlin is a new fandom of yours, and also I've never given a prompt for one of these before so I feel a little nervous and concerned I might be doing this wrong, but this idea hit me all of a sudden...

Y?
Fandom: Merlin
Pairing: Arthur/Morgana.
Prompt: 'You could be a sweet dream or a beautiful nightmare
Either way I don't wanna wake up from you...'

I was never that into Beyonce but suddenly, I'm totally hooked on her new album. And the whole thing with Morgana and her dreams...it just clicked. :D So I thought I'd suggest it. I totally understand if it's too random for you, though...