Summary: Sebastian plays with Ciel's soul.
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The boy's young soul was hovering just above the cooling lips of the body he'd just ravaged. It was a white ball of energy, pale blue wisps twirling around a darker rich blue center. Sebastian always found it interesting the colour a soul would take; oftentimes it depended on the person's personality, and rarely—and Sebastian had never seen this colour—would it take on such a rich, dark colour such as the one of Ciel's eyes.
Sebastian smiled as wisps of energy extended outward, tickling Sebastian's lips as though an invitation. The demon was well versed in soul manipulation, both inside and outside of the body. His tongue slid out and made contact with the soul in response, watching it shudder from the stimulus. He groaned at the taste, a flavor that human food could never parallel. Ciel's body twitched as well, giving Sebastian pause.
Well, this was new.
He'd assumed that once the soul was this far out of the body, that interacting with it would not result in an echoed response from the vessel. Perhaps, because it was still sitting rightly upon Ciel's lips, it still transmitted sensations into the vessel as though he were actually giving Ciel the most sensuous of sexual endeavours.
He had never tested this before.
"Young master," he gasped, with his lips still on the soul, brushing gently. The child's body shuddered in response, goosebumps rising on his nude, cold body. That devil's tongue snuck out again, giving a long, lustful lick on that ball of energy. It pulsed, nearly burning Sebastian's tongue with increased heat. The body arched up in response, a weak moan curling its way out of the boy who was supposed to be dead. The eyes remain blank, unmoving, but the body was still very much alive.
Sebastian brushed the back of his one hand upon the child's forehead, pushing the hair out of those soulless eyes, viewing his reflection as he toyed with Ciel's soul, sucking, biting, moaning into the tastiest of prey he'd ever captured. The body jerked and clenched, hands balling into fists and sultry mewls being produced. The boy had become hard again despite its recent ejaculation, small member standing proud and coated with dried semen.
He paid no mind to it, having already fed extensively on the mind, body, and soul's lust when the boy still had life to him. This was merely dousing frog legs with salt and watching them dance with no rhythm.
Black-nailed fingers circled slowly around the soul and began to squeeze. Those breathy moans twisted into jagged screams. Sebastian had no intention of crushing the soul into oblivion; what a waste of a meal that would be. He did relish in those screams, ones that he'd once or twice imagined Ciel to produce from underneath him as he conquered his master in a game that Ciel had no experience in. The young earl's pieces turning against him: Ciel's own knight conquering Ciel's own king, breaking all the rules of chess… yet, Sebastian's master would come out on top despite this.
Now, it doesn't matter.
The body arched up in a climax as Sebastian opened his mouth and sucked the soul inside, not letting it move away from the boy, just engulfing it to where his lips made contact with Ciel's. The body convulsed in an orgasm, little ejaculate coming from him this time. Sebastian supposed if he'd done a third round, the boy would be dry.
He released the soul slowly from his mouth as the body's quaking diminished. He stuck out his tongue in pain, as the soul's energy did burn him. Granted, his demonic powers would quickly heal him. The taste was so worth the pain.
Straightening up and wiping his mouth, he cupped the soul with his hand and lifted it away from Ciel, watching as the body's trembling ceased entirely, leaving his master to resemble a lifeless doll, head lolling to the side as those empty eyes stared on.