There was a girl on his face. Jon was still half-asleep, but he had deduced this much. Since he could still move, he could safely deduce it wasn't Mia sitting on his head and being a brat. And there were lips. Mia, to the best of Jon's knowledge, didn't have lips. No, this was definitely a girl's face.
Once that was safely established, Jon opened his eyes. It was Rei. Rei was on his face. That was all right then. They broke the kiss and he smiled. "Good morning. Maybe. I have no idea what time it is."