Tony doesn't give him an answer. Thor allows himself to be led by Tony, enjoying the weight of the other man's hand in his own. His grip on it tightens as they step outside into the cold, hoping to share a little bit of his warmth. Thor might be impervious to winter chill, but Tony is sensitive to cold. If he could, he'd bundle the man up in a half-dozen blankets every time he got cold and wrap his arms around him until Tony was warmed to his satisfaction.

There are no blankets here, though -- just Tony, his newly-materialized scarf, Thor, and his newly-gifted pendants.

Thor wordlessly follows after Tony, up to that fixed point on the roof and wonders -- knowing he'll never guess -- what Tony Stark has planned this time.