There was the brief acknowledgement that Shinji had done something with something but that was as far as the specifics went so far. Right now he could really only think about how cold it was, how cold he was, and how blissfully warm Shinji was as he got up on the couch.

Kai let out a shivery sigh of relief as he practically melted into Shinji's hand, completely shamelessly turning his face into that warmth. "Think s-so," he said into Shinji's palm. "Just. Cold. This- this feels nice though."