I'm looking for an AU fic where Loki and Thor visit Earth/SHIELD for diplomatic negotiations for some sort. The only scene I remember has them arriving to a SHIELD base where Loki instantly magics on a nice suit and blends in (while Thor sticks out like a sore thumb) and spots Hawkeye in the ceiling structures, etc., generally impressing everyone with his sharpness. That's all I can remember, but it's not 'When Rules Change' by MissisJoker. Not sure whether it was gen, slash or het. Ring a bell, anyone?