He knew that Bucky would always tell him that his coffee was good. It could have tasted burnt as hell, and Bucky would always somehow manage to drink it. The nonchalant it's fine was honestly a higher mark than he was expecting to receive out of Tony. In fact, Stark had already given him a lot more than he was anticipating. And maybe, this indicated that he could get away with a little teasing. "So.. tastier than your hashbrowns?"
Was it okay to joke about that? Steve wasn't sure, but he still snickering over it all the same. "I'm kidding. I'm kidding."
He had missed this; being able to speak with Tony about matters other than whatever chaos was currently happening around them. And maybe, this was a sign that they would eventually be comfortable around one another again. ..eventually. "I'll make it an Irish coffee next time. Maybe that will make it more palatable."