Chapter Text
Light put his Death Note back in his drawer, cracking his knuckles. A long night of judging criminals and studying for his finals left him feeling sated.
“Light-o?”
Light turned his chair to face his shinigami. “What is it, Ryuk?”
The gangly being finished off an apple before responding. “When Gods of Death write in the Death Note, they gain the remaining lifespan of the human they killed. When a human writes in the Death Note, it just kills the person who's name is written down.”
Light nodded. He had already been told this.
“Well, there's a deal I can make that would allow you to claim the remaining lifespan as your own.”
Light had explicitly asked if there were any other deals he should know about... That would have been nice to know 500 kills ago. “What's it cost?” It can't be a portion of my life, because I'd just be able to regain it... But what else do I have to give that a Shinigami would want?
Ryuk's eyes were as wide and unblinking as ever, gleaming a bright and eery red. “You.”
Light frowned. It cost 'him'? “What do you mean by that?” Stupid shinigami, messing with him...
Ryuk cackled. “Hyuk Hyuk. Basically, you become my slave. You have to satisfy my every whim, and do whatever I tell you.”
Light gaped. This only sent Ryuk into further fits of laughter. “As.... as your slave...” The mere words came out strangled. The god of the New World, a slave? But, the capability to rule his kingdom forever was too tempting to pass up without further inquiry. “...what will you have me do? Can I still pursue my goals?”
Amusement lit fiery depths. “You'll still be able to kill criminals and pursue your 'New World'. That Death Note belongs to you until you forfeit it or it becomes destroyed.” Ryuk plucked another apple out of the bunch on Light's bed, taking a bite and talking with his mouth full, “I can technically have you do anything, but I'll just have you keep me amused and take care of my needs.”
Light mulled this over. Amusing Ryuk came effortlessly to him, and supplying apples to the shinigami was hardly a price for being able to live forever. “How long will this deal last? And will I grow old?”
“You won't age beginning from when you make the deal. The deal lasts 'til your death- in the case that you forget to write down names or I decide to kill you. It can also be ended per your request, but then you'll be left with half of the remaining lifespan you had before making the deal.”
...well, it's not like he'd really be a slave to Ryuk. Light was far too smart, and could easily manipulate Ryuk into doing whatever Light wanted. Ryuk already had the ability to just kill Light on a whim, so that wasn't a new danger. “...I accept.”
Ryuk's insane, mad cackling would have been enough to drive a lesser man to change his mind, forfeit his memories, and have nightmares about monstrous demons for the rest of his life. Light, however, waited impatiently for the shinigami to calm down. The Shinigami's antics were so unnecessary. You better get used to it. You'll have to hear that for the rest of your long life, said a voice in the back of his head.
I'd have to hear if for the rest of my life anyway...
Finally calmed down, Ryuk began, “The Shinigami Eye deal is sealed by half the human's lifespan being taken away. The Shinigami Life deal is sealed by the human submitting fully to the Shinigami.”
Light raised a brow. “Go on.” If he didn't say those little things, Ryuk would often take 10 minutes to start speaking again...
“After this, you'll be my slave,” Ryuk said, “and you'll get the Life Lengthening powers of a shinigami.”
The brunette felt his eye twitch. “Yes, you've already told me. How do I seal the deal?”
“You aren't gonna like it. If you wanna change your mind, it's still not too late.”
A clenched fist. “Ryuk, tell me now or no more apples!”
Instead of appearing intimidated, the Shinigami began cackling once more. This only egged on Light's irritation even further. He opened his mouth to berate the shinigami, only for Ryuk to finally resume speaking. “You have to have sex with me.”
“...what?” Light cringed at the mere thought. “Is... is that even possible?”
“Hyuk hyuk! Possible, but usually forbidden. This deal is an exception.”
Light shivered: a deep, bone-wrenching shiver that travelled through his entire being. “I... Never mind. I don't accept.” He couldn't do it. Nothing was worth going through something so disturbing.
Ryuk appeared immediately deflated for all of two seconds, before lighting up once more. “Alright, Light-o. But if you change your mind, eternal life is still on the table.”
~
Light was glad he pre-studied everything, because otherwise his inability to focus in high school English class would be really bad.
He couldn't stop dwelling on Ryuk's offer. It wasn't very godlike to be a Shinigami's slave, let alone to be... whoring himself outto the Shinigami, in exchange for an extended life. That's what it would be... selling sex. Not a god; nothing but a common whore...
No, not common. There was nothing common about sex with a Shinigami. Ryuk had confirmed that himself. And Light Yagami himself was a far cry from 'common'.
Then again, I did say I was willing to sacrifice my sanity and mind to rid the world of evil. Sacrificing my body is no different, if it's for my New World. The New World will continue to need a leader, and no one will ever be able to do as well as I can.
He observed Ryuk floating upside down above him, and tried not to imagine what sex would be like with him. He didn't want to throw up in public...
~
Light locked his bedroom door, flipping on the light. “Ryuk,” he said, voice steady. “I accept your deal.”
It was so silent, Light actually turned to see if Ryuk was even in the room. He found himself staring into blank red eyes. He nearly jumped when life came back to those orbs. “Hyuk Hyuk, alright. I'll go easy on you this time, kid.”
Light had half a mind to be offended. He didn't need anyone or anything to go easy on him. He thought better of voicing those thoughts, however. The last things he wanted was for the monstrous Ryuk to be rough with him. Light hadn't even had sex at all before, let alone with a shinigami.
Ryuk sat on the edge of the bed. “Come here.”
Light swallowed hard, forcing lead-filled legs to take him to Ryuk. He could hear his heart in his ears, as he stared at a stretched mouth in an entirely new way. “Just, make it quick, ok? I want this over with.” Light flinched as a clawed hand reached out, forcing himself to stay in place as it cupped his face.
“Kiss me,” Ryuk ordered.
Light grimaced. “Ryuk-”
“Light-o, if you can't even do that, then you're not gonna be able to follow through with the rest.”
Light steeled himself. That was true. He took a deep breath, slowly letting it out. While his heart was still racing, body tensed, he found he was capable of movement. Closing his eyes, he leaned forward. The hand on his face halted his progress.
“Eyes open,” Ryuk commanded.
Light did as told, scowling. He closed the remaining few inches between them. It was... odd. Ryuk's skin didn't feel at all as Light had expected. It almost felt normal, but with a dry coolness to it unlike a human's. Light tentatively placed a hand on Ryuk's jaw, running his hand over the skin. It was kind of nice. Light found himself relaxing into the gentle movements of Ryuk's lips, pressing into the cool, sharp-nailed hand on his face; they could so easily break skin...
Light hesitated at the feel of a tongue prodding his lips. Crimson eyes pierced into his own amber. Blood... life... death... That's what Light saw in those maddening eyes...
Light trembled, hands clenching reflexively on Ryuk's shoulders. A moan was forced from his throat. It took him a moment to realize the cause- Ryuk's tongue had managed to sneak into his mouth. Hot damn, he had never known kissing could be this- Light melted into Ryuk's lap.
For his part, the shinigami was more than pleased. This beautiful, tasty human was submitting perfectly so far. Light would be his. Ryuk had never imagined having such an intelligent, composed, egotistical human at his beck and call. He groaned with desire as he felt Light cling desperately to him, phasing through Light's shirt and placing his free hand directly on lean muscle. Claws ran down the hard planes of Light's chest just hard enough to leave pink marks, the brunette arching into the touch. “Agh, Ryuuku-”
The Shinigami pressed his lips to a delicate ear, gently biting down. Cool breath beating against Light's ear, he commanded, “Take off your shirt.”
Light gave a weak nod, making a sound of loss as Ryuk removed his hand from Light's chest. The brunette made quick work of untucking his shirt, a few buttons coming lose as he forced the button-up straight off and over his head. Ryuk took in the delicious lines of human flesh with first his eyes, then his tongue. Light gasped, falling back in surprise. Ryuk's arms had quickly wrapped around the boyish waist, flipping their position's and pressing Light so his back was to the bed.
Glazed amber eyes looked up from under dark lashes, falling shut when Ryuk resumed sucking and nibbling on the brunette's chest. Sharp teeth lightly pressed to a perky pink nipple, Light's hands soon tangled in Ryuk's dark hair. “Ah~”
Light hardly knew what he was doing, the shivers and horrors of before replaced with pure sensation. The soft, feathery strands he had dubbed as 'hair' were irresistible. He whimpered as a tongue snaked into his navel, arching into the touch and trying to hold Ryuk to his body. He almost jumped out of his skin at the sudden touch on his cock, trying to squirm away despite the tingles of pleasure. “Ryuk-”
Ryuk's mouth pressed to Light's, and the brunette's complaints were easily muffled. He writhed against Ryuk, who only continued his touches. When he pulled back from the kiss, Light was left panting for air. “R-ryuk, do we... do we have to- ah- go all th-the way?” he forced out between gasps. He let out a low moan as a tongue licked from the nape of his neck to the shell of his ear. Ryuk whispered hotly, “If you want to live forever, then yes.”
Light swallowed heavily, steeling himself for going through with everything. His clear thoughts soon left as that hand below resumed its stroking. This time when Ryuk leaned down for a kiss, Light kissed back hard. The resulting moan from Ryuk felt like a triumph to the human. He didn't even realize Ryuk had been undoing his pants until they were being tugged off. Light felt lonely and cold in the few moments Ryuk had gotten up to fully take off the pants. But when he returned, Light in nothing but a flimsy pair of boxers, it was as if a fire was lapping at his skin from the inside out.
He watched with hazy, curious eyes as Ryuk undid his own pants, but didn't remove them. Light felt himself panic as he took in the size of it, knowing just where Ryuk planned to stick it.
“Uh, wait, I've... I've got some lube,” said Light.
Ryuk raised a brow. “You're not moving from this bed.”
“Then... then you can get it. It's in the second drawer on the right, in my desk. Some lotion.” When Ryuk just stared, Light bit back more of his pride than he already had. “You said you'd go easy on me.”
Ryuk tilted his head, only to laugh. “Hyuk, alright. You're so amusing, Light-o.” In an instant he had retrieved the aforementioned lotion. “That mean you want me to move things along?”
Light decided a firm glare was the best answer to that. His plans on keeping that expression went out the window as that devil's mouth sucked him obscenely through his boxers. He bucked up into the touch, only to find it gone. Breathlessly, he watched Ryuk remove Light's last article of clothing, leaving him completely bare to searching eyes and hands.
The look of pure, rawhunger on Ryuk's face had Light delirious. The world spun, as he found himself repositioned with doll-like ease, now on his hands and knees. The shinigami pressed Light's head to the bed, pulling his thighs apart and forcing his ass high in the air. A shock of cold liquid trailed down his crack, causing him to fidget in discomfort.
“Might wanna try and relax,” Ryuk stated. Light went to give a nod, instead letting out a shocked gasp at the claw probing his anus. He bit his lip as it slipped inside. It didn't hurt, but it felt so uncomfortable. Even with the generous amount of lotion. He tried to focus on his breathing as the finger thrust in and out, biting his lip as a second clawed finger joined in. He could feel them scissoring, stretching way more than was comfortable. The pain was starting to make an appeara-
Light's entire form convulsed, sharp pleasure curling in his belly and shooting throughout his veins. “Ryuuku!” he cried out, panting and nearly collapsing into the bed. A hand on his hip was all that helped keep him up. The fingers twisted again, and-
The world flashed white, Light overtaken with head-to-toe tremors as he pressed back pitifully into that dizzying touch. He could barely make out Ryuk's laughter. His body was flipped over so he was on his back, legs tugged up so they were wrapped around a thin waist. He looked up into the endless fiery depths of Ryuk's orbs, trying his best to relax for what was to come. As he felt a gentle prodding, he kept that fierce stare.
“You're mine,” Ryuk growled.
Light could only whimper, hands clawing at Ryuk's shoulders through the thick leather shirt as he felt the head slip in. Ryuk snapped his hips, forcing the entire length in. Light's back arched as he cried out.
“Say it,” Ryuk demanded. “Say that you're mine.”
Light bit his lip. “I-” Ryuk pulled all the way out, slamming fully in once more. Light keened. “I...” Sharp teeth bit at his neck, and Light pressed desperately into the touch. On a breath, he said, “I'm yours.”
“Louder,” demanded Ryuk. He rolled his hips just so, causing Light's vision to quake. He must have been pleased with Light's reaction, because he continued that hip roll after that point, sending the brunette out of his mind. Hands desperately clawed, lips attempting to latch onto the grinning ones above him. “I'm y-yours!” Light cried out.
He moaned with delight as he was allowed the kiss he had been seeking. “Ryuk, Ryuk, Ryuk~” The name, like a mantra, left his lips, as the shinigami began to fuck him with earnest. Hard, fast thrusts that shook the bed-frame and jarred Light's entire form. A clawed hand fisted his leaking erection, that wicked mouth lowering to his jawline and biting down hard. Ryuk pulled away, licking red from his lips, that dangerous tongue driving Light mad. He leaned up to recapture Ryuk's lips, biting down on the bottom one. Ryuk flicked his hips just so-
Light's entire form convulsed, his scream muffled by a big mouth as he came in huge spurts between both of their bellies. Aftershocks of pleasure continued to flow through him as Ryuk continued thrusting a few more times, face a look of intense pleasure and concentration. Light let out a low moan with Ryuk as he felt himself be filled with the shinigami's seed, collapsing boneless onto the bedding beneath him.
Chest rising and falling rapidly, Light laid an arm over his eyes.
“That was better than apples.”
Light scoffed. “Of course-” He broke off when his voice only came out as a strangled croak. Clearing his throat, he tried again. This time, the world faded out before he could even begin.