Castle (the rules by which we live) by kickflaw (NC-17)

[christycorr]

Fandom: MERLIN
Pairing: Arthur/Merlin, Morgana/Will
Length: 16,214 words
Author on LJ: kick_flaw
Author Website: AO3 profile
Why this must be read:

Holy shit, this is hot. If you're into BDSM fic at all, you'll probably have a great time reading as Merlin realises that he's not just the kind of person who enjoys idly watching BDSM porn—and of course Arthur happens to be a professional Dom who can help Merlin see just how enjoyable experimenting can be.

This is a modern AU, porn-with-buildup—not exactly plot, but it is relatively lengthy—well, it's mostly just porn, to be honest. It's all kinds of fantastic. Plus, there's fanart! If you're into this kind of fic, you can't go wrong with this one.

Challenge flows hot and heady through his mind. Merlin tips his chin, leans back, opens his arms in the universal I-double-dog-fucking-dare-you pose. He wishes, fleetingly, that he had his jacket, so he could take it off dramatically and drop it to the ground.

Sneering, Arthur snatches up Will's collar. "My shift ends in ten minutes," he snarls. "Take this," the collar gets shoved back at Merlin, "and go see Emmyria at the desk. Tell her I said to put you in the Dark Room. Wait for me."

"The Dark Room," Merlin scoffs. "Really?"

Arthur is like Morgana—fast. He has Merlin's wrist in his grip, has Merlin bending awkwardly over the bar before Merlin even sees it coming. Apparently, Merlin thinks wildly, Dommes really like to twist and bend people about. Arthur's got him harder than Morgana did though, he's struggling just to stay on the stool, and there's a surge of fiercer desire in him for it. His knee throbs, slammed into the purse-hook beneath the bar counter. "Shit," he says. Everyone must be able to see this. Are they watching? Is this normal?

Arthur stares at him, not half a foot away, expression gone fierce and cold and searching. Whatever he's looking for, it seems he finds it, because he lets Merlin go and repeats, "The Dark Room. If you really think you can handle it."

Castle (the rules by which we live)

(The author posted a couple of extra snippets on LJ here and here.)