Board Game HC: Harry, Eggsy, Merlin, and Roxy play Cards Against Humanity. That's how they all discover that Merlin is SO vanilla it hurts (which a drunk Roxy later admits she really, really likes), and to everyone's surprise, it's actually Harry that takes on the title of "what the actual hell, man?". The bloke could probably rule the world without batting an eye. Eggsy isn't surprised.
Merlin is absolutely horrified by his coworkers. Not Roxy, he already knew what she was like, but Harry and Eggsy were showing him a side of themselves he’d never seen before, cackling at his face while he reads their responses.
“What’s that sound?” he repeats from the black prompt card, closing his eyes before he reads out, “Firing a rifle into the air while balls deep in a squealing hog.”
And god was that so much worse than “a mime having a stroke” and “dropping a chandelier on your enemies and riding the rope up.”
Roxy is on the ground, crying from laughter much like Eggsy, the two unable to contain themselves as Merlin levels them with a long, disappointed stare. Harry is avoiding the magician’s gaze, shit-eating grin present on his face, and Merlin knows he was responsible for that card.
Merlin tosses the white card at his best friend and Harry falls over in laughter.