[Mettaton nods, his fingers tightening around Asriel's small hand, enough to convey his discomfort, but not enough to hurt.]

That it does...the sooner we find our way out the better.

...Did you want me to carry you? This isn't the most pleasant stuff to walk through.

[He pointedly avoids mentioning that Asriel had already been doing so, and definitely avoids staring at the bodies too long. The latter was so that he didn't end up looking so disinterested. That would look too cold, and with the way his friendships were wavering lately, at the very least he doesn't want to risk alienating Asriel.

Again.

He's been doing it a lot.]