A prompt given to me via my ask box on Tumblr: Season one, The Poisoned Chalice. Arthur is in the room when he thinks Merlin has died and instead of Gwen kissing Merlin, Arthur does.
Challenge accepted.
Wherein Gwaine's good intentions lead him astray, Merlin is far less innocent and far more artful than he appears, and Arthur can resist everything but temptation.
After his attack on the Pendragon Inc. servers backfired Merlin finds himself in some unpleasent situation. Maybe he shouldn't have taken the job after all...