It was an incredibly attractive grin, as a matter of fact, and were this a movie -- and were they very different people, people who were not perhaps quite as wary as they both were (as damaged as they both were) -- this would be where he would lean down and cover Stefan's mouth with his own. As it stood, he was certainly tempted. Stefan had a very inviting mouth at the best of times but none more so when he smiled.
But they were not those people, and this was not the right time for them.
"Well, clearly we're at an impasse." So -- and with some reluctance -- he got to his feet, holding out a hand to Stefan. "I suppose I'll just have to trust you to act in good faith."