His mouth is open to protest that really, he'll be fine, it isn't that cold out and he'd only put the blanket on her as an excuse to get closer, but-- It's that same excuse that leaves him unable to protest, only huffing through his nose as if annoyed, though it couldn't be further from the truth. "Very well, if only because shared body heat will be beneficial."

...That was the complete opposite of charming, but he steadily keeps his gaze up, even as he shifts himself to comfortably press against her side, light enough that she could move away with ease should she so desire. "Thank you."