He groans and practically melts as he's touched, shuddering little gasps escaping him and tilting his head backwards so the other can press against his neck. "I'm... I just want..." He's not sure what he wants, just that he doesn't want Shang Beida to stop touching him.

"Please...." His back is as skinny as the rest of him. There's no scars on there but his spine is easy to feel, his body shivers at the older man's touch. "You're... so warm..." To be fair, it's less that Shang Beida is warm and more that Casper is cold. Still the temperature difference just makes it feel even better as Shang Beida touches him, his cold body craving the warmth of the other's touch.