"Exorcist, huh?" Yeah, he's got only a vague idea of what that means in the context of human culture. Much as Rin might seem uncomfortable with the topic, that ain't exactly Sans's greatest concern. He's more interested in the topic than he is in preserving any sense of conversational comfort.

"So what do demons look like where you come from?" he rumbles companionably, as easily as he might ask about the weather. "Like people, or somethin' else entirely?"