His eyes close for a moment, when Casper's hand lands on his head, basking in the touch. Being affectionately touched is really nice and he is a huge fan, five out of five stars.

"It's okay, baobei. I like being able to help." He reaches out with the cloth, now, and starts gently wiping Casper's leg clean--he considered, for a moment, starting with the intact one, but he suspects it would just give Casper more time and fuel on his conviction that his amputated one is disgusting, so instead he smooths sweat and grit off the stump of the wound that killed Casper, then presses an impulsive feather-light kiss to the reddened skin before he continues with the rest of his thigh and his other leg.