He's reshaped himself to look almost human for this, but he's never successful in the full appearance. He thinks it's a Shedite thing - they're inside human skulls so often, see only the pettiness and evil that the human mind can wrap itself around, how could they take on a full and true human form? They have none of the delusions humans have, to wrap it up in a pretty package so.
Malphas is a black hole in the shape of a man. A wet black hole, something moving in its depths. He stands, legs splayed, one hand behind himself, his eyes narrowed to wet slits, as he rubs something that isn't exactly a penis, but couldn't be anything else.
"You like it," he hisses. "You like it."
Kronos's face is blank as Malphas jerks himself off onto him. Sometimes Malphas thinks Kronos doesn't see him at all.