His expression did not change to surprise. Instead the shift was more akin to that of a teenager who wanted to try talking his date into sneaking into the janitor's closet for a bit at a school dance. Problem was, there really wasn't anywhere to sneak off to so he could touch the dress -and who was inside it, more privately. He was going to have to just suck it up and wait for later. Or leave early...
“Keep teasing me like that,” Loki warned with glint of mischief behind the clear desire he always had for her, “and we will not be staying here very long.”