Fluttershy hovered over the clearly petrified alien and exerted a level of dominance over the creature that caused Celestia to actually feel bad for him for a moment, and judging by the veins bulging in his neck and the random twitching of muscles, she needed to stop Fluttershy’s stare before she caused him permanent damage.  Not that Fluttershy would ever intentionally bring harm to any living creature, but it was impossible to predict what manner of effect the stare could be having on its alien psyche.  