For a moment he just looked at her - it was barely a split second of a blank expression, but it was enough for someone who was watching for that sort of thing. He had never been asked that question before, and it legitimately startled him for a moment. He was far too used to being overlooked when it came to Thor, even though more often than not he had operated as his brother's good sense.

"Whenever required," he said, and tipped his empty glass towards her in a wordless request for another.