Everything We See or Seem (слэш)

Some mages have the ability to soul-see naturally, some must cultivate it; Loki was a case of the former, but generally scorned it for the discomfort of seeing more than he wanted when some people touched him. Possession of the ability, however, can become troublesome when it locks onto the one soul it determines to be matched to its wielder, particularly if the wielder is Loki of Asgard, and he finds his match in Tony Stark the moment he seizes the inventor by the throat. Then the floodgates open, and the nightmares begin.