Kevin wasn't at all expecting to be greeted with a punch; her metal hand was hard, and it knocked him back, sending the boy stumbling backwards until he tripped over his own feet and landed on the floor. He was too startled to feel the pain at first, just sitting there and staring up at Cessily with wide, shocked eyes.
Then he felt it, the hot throbbing pain that spread over his cheek and nose, and he brought his hands to his face immediately, out of instinct. Shit, shit, his nose felt like it was broken, his cheekbone felt like it was fractured at least, and when he took his hands away, there was blood on his gloves. "Ow," he mumbled, still too shell-shocked to think of anything else to say, and by the time he looked up again, the metal girl was gone.
Kurt was there, though, and Kevin looked up at him uncomprehendingly. "Did she just," he started, and had to stop, because he really had no idea how this had just happened. "What. Uh." He couldn't get out a complete thought, and anyway his nose was dripping blood and that was more important. "Shit," he managed, and lurched to his feet, one gloved hand gingerly covering his nose. Paper tissues were no good -- they'd just decay when he touched them to his face -- and he didn't have any synthetic handkerchiefs, so he grabbed one of his shirts and pressed it to his face, trying to stop the bleeding.
He gave Kurt a look of complete confusion, still trying to wrap his head around this. "Is she insane?" he asked, muffled by the shirt. "Did she just--"
It finally sunk in -- Cessily had touched him, bare-skinned (or whatever passed for skin on her), and he hadn't hurt her. Kevin sank down onto his bed and just sat there, gaping, too stunned to realize that the shirt wasn't doing a stellar job of absorbing and his face was hurting more with every second that passed.