[it is like pushing a brick wall]

...Firstly, I highly doubt food allergies or poison would affect you; and if they did, I doubt the only symptom you would exhibit would be flushing, or that it would only be on your cheeks. Secondly—

[and suddenly he grabs at those pushing arms and tugs. he is no longer all but leaning, he is draping, and he pushes his good cheek against KaITO's. into his ear:]

...you're warm.