Loki was looking at Darcy. However, his eyes were widening with each passing second as he realized how conversationally cornered he was. He wondered if he should text Thor and see if he was coming, and how swiftly he could be there. But calling for brotherly backup was stooping too low for Loki's proud self. He told himself he could smooth talk his way out of this sticky situation with both his incredibly plucky and gorgeous girlfriend, and the long-time (equally gorgeous) recipient of his unrequited affections.
"Surely you know I would never insinuate such a thing. Rather, I think you are adequately attired for tonight's revelries," was Loki's supremely diplomatic reply, as he attempted to not look in Sif's direction and focusing on Darcy. "Which I am certain we are all looking forward to."
Then he glanced. It was fleeting. Momentary. Less than five seconds. More like his eyes flickered over toward Sif's face and noted that raised eyebrow, before he looked away again. And it was easy to look away, because he looked at Sam and then Ellen in a way that wasn't quite pleading for guidance. Very close, though.
"If you have any strong drink," he told Sam in a low voice whilst smiling, trying to keep his lips from moving too much, "I believe I'm in dire need of it."