Again, Mettaton winces, his body tensing. The first time was by surprise of course, but the second time wasn't exactly expected either. He tries to focus on the positives here, because when someone's draining your blood, that's a bit important.

Pain. He doesn't mind it, it reminds him even more than before that he is alive, and he takes some comfort in that fact. Closing his eyes, he lets out a breath and a small, indeterminate noise.

The longer it goes on though, the more tired he becomes, to the point where he can't help but wrap one arm around Liquid's shoulders just to steady himself.

Surely...the man meant what he said? He wouldn't kill Mettaton, right?