"I... don't really drink, so..." He's still cautious, and a little confused about what exactly Steve's plan is, but at least it seems that whatever had made him so violent was wearing off -- or so he thinks, at least, lulled into fake security by that smile. Next time. Just forget this one. So did this mean that they were not going to have sex? Or... that they were, and Steve was going to be cruel with him?

Despite his concern, he forces a smile and nods eagerly. Yes, yes, he's learned his lesson, he will listen perfectly from now on. Please don't hurt him.