"Not much sense, actually," he replied sheepishly, at once, tagging along like always, "I've just been... out for a bit." Trying to get Knives's scarily rational reasoning out of his head and back into normalcy. Which this... sort of what. Getting breakfast with his kinda-older brother -- what wasn't normal about that?
Besides their surroundings and time gaps, of course. The mention of Rem's name just drove that home, but Vash got his smile to simply go wider, "Well, then, you'll just have to eat more to make up for it! Good thing there's a buffet~" Really good thing. Mm, food..