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Only a single day after their reunion at the gates of L's high-tech stronghold, L Lawliet is dead, Rem is dust, and Light is free; and Ryuk, shackled though he is to Misa Amane, is nonetheless exultant.
Ten days after that they're finally reunited properly, when Misa is asleep in the bedroom of the apartment Light has hurriedly acquired for the two, or rather three, of them. When everything is quiet at long, long last; and Light turns to him, silhouetted elegant against the glow of the curtained window, and looks up with hungry eyes and a smile that makes Ryuk feel like a dog let off a choke chain.
"Light," he hisses, keeping his voice low as he reaches out. Light's eyes close luxuriously as he settles back into Ryuk's grasping hands and his smile looks like victory, and tastes like it too when Ryuk licks his mouth and Light stifles an eager laugh and opens up to be kissed.
Opens up for far more than that, on his back on the couch minutes later, knees hooked over Ryuk's hips and panting yes, Ryuk, yes as Ryuk sinks into him with a choked-back groan. Light's always been able to take Ryuk like he was made for it, an effortless arch of his spine and a deep shivery exhale of breath and then Ryuk's in him to the hilt and half crazed with how good it feels. Ryuk leans down, caging Light underneath him in arms and wings and weight and shadows, and Light sighs and bares his soft throat and gasps when Ryuk's hips press up flush against him. So human, so vulnerable, Ryuk could break him in a heartbeat - but Light has to know that he won't.
Has to know that he would never. That Ryuk is utterly in thrall to him like this, to the edge of his smile and the evil in his eyes and the sweet mortal heat inside him; that Light couldn't be safer anywhere in the world than he is right here, right now. Ryuk moves - slow, easy, the way it'll feel best for Light - and Light arches again with a moan so lovely it nearly stops Ryuk's ancient heart.
"Ohhh... Ryuk, I've missed you..."
"Missed you too," he whispers, and Light laughs and reaches up to grab hold of him by a greedy fistful of his shoulder feathers. The small pain of having a few of his quills yanked out by Light's hunger for him is more delight than deterrent. "This feel good, Light-o?"
"Mmm - yes. You don't know how weird it was when I didn't have my memories. My mind didn't remember you but my body really did." A soft moan, perfect lips parting, amber eyes half-lidded behind errant strands of dishevelled copper. "I kept trying to figure out what it was I was missing, though it wasn't like I could've done much about it anyway with L right there never leaving me alone..."
"I saw," Ryuk tells him. "I was watching the whole time." He wonders if Light can guess how sick with jealousy it made him to see L trying to force his way into Light's soul and his secrets. It's been a very long time since Ryuk felt so much true hate for a human.
But Light only laughs again, sweet and breathless as he squirms on Ryuk's cock like he's somehow getting comfortable there. "I hope you weren't too bored," he teases. "I hate to think what you made of me in that state."
"Not the word I'd use," is as much as Ryuk admits. Jealous, lonely, hungry, dreading; craving, pining but definitely never bored. "It was still you. Memories or not, you don't really change, not to my eyes."
"Really? That version of me didn't even believe he could be Kira." Light rolls his eyes. "I'm surprised you weren't laughing at me."
"Light-o," and Ryuk drives his hips down hard enough that Light loses his breath and shudders and can't answer back for a vital moment or two, "the notebook's just the weapon. Just the power." He taps his claws on Light's bare chest, over his heart. "It doesn't change a thing here."
"Ryuk-"
He bends even closer to his human underneath him, pinning Light under his shadow. Whispers. "I saw everything you did to L. How you had all the others wrapped round your fingers. He never had a chance and that wasn't the Death Note, that was all you, Kira."
Light shivers when Ryuk calls him Kira, whines in his throat as his eyes flutter closed. He arches his back, pushing himself harder onto Ryuk. "Don't stop," he breathes.
Ryuk doesn't. Ryuk doesn't want to. "Every time you got one over on him, I was watching," he goes on huskily, rocking his hips into Light's, reaching down to palm Light's straining cock and making Light moan in relief at the touch. "It felt like you were still showing off for me even though I knew you didn't remember. Made me want you back even more." He's a little afraid of how honest he's being, but Light has always been able to reach inside him and pull out his secrets. He wants Light to know all of this. "Imagine that - poor old Ryuk curled up in the dust of a dead world, touching himself over a pretty little mortal who didn't even know he existed. All the other shinigami were laughing at me for months." He twitches his cock deep inside Light, rubbing against a sweet spot that makes Light gasp and choke on pleasure. "Heh. Who's laughing now?"
"Ohhh... oh, Ryuk." Light's voice is ragged, broken by his panting breaths. "I wish... I wish I could've seen you like that. Wanting me so much..."
"Hhhh!" He shivers entirely too hard at the thought of Light standing over his wretched form, smirking and hot-eyed watching him suffer. Maybe the others are right about him having no pride. "You're cruel, Kira."
"But I'm - mmm - I'm so good to you," Light says, and the glint in his eyes goes straight to Ryuk's aching cock. He's almost sorry he's on top all of a sudden; that look and the words should go with Light being the one forcing pleasure into him. "Don't you think? I feed you, I play with you, I let you get away with being a lazy freeloading shinigami who's no help at all-" He laughs at whatever Ryuk's face does at that. "Yes, all right, except when you are... and I let you fuck me on the couch when my girlfriend is asleep in the next room, it's disgraceful, you should be ashamed of yourse- ahh Ryuk don't stop!"
They're unequal in so many ways, so many lopsided angles and mismatches of power between them depending on which way you measure, but Ryuk knows exactly which cards he holds in their game and he'll play them mercilessly when he can. "Who'd be ashamed to have the God of the new world begging them for this?" he demands, as he presses into Light and strokes him just right and Light writhes underneath him in breathless ecstasy, words forgotten. "L would've killed for this." He cackles quietly, gloating, jealousy turned to triumph - with L safely dead, there's only sweetness left now in the thought of how his unwitting would-be rival crashed and burned at Light's hand. "Wish I could've told him before he died that you were saving it all for me-"
"Ryuk!"
And Light's coming with his eyes wide in shock, spilling over Ryuk's claws, clenching on Ryuk's cock with every spurt. Ryuk bites back a moan that would've been far too loud and then finally he's coming too, pumping cold seed so deep into his sweet little mortal shinigami's body, making Light gasp and squirm at the sensory overload of it. He knows that the feeling is right on the edge of what Light can take.
But Light would curse him for pulling out; always aspiring to have no limits, always ready to drown himself proving he can drink from a firehose. That catastrophic ambition is one of the things Ryuk likes best about him. So he pushes in deep, holds Light down, fills him up while he whimpers and clings and doesn't resist, and luxuriates in having his playmate back. Fucked, claimed, and full of his come - all his.
Light flops bonelessly when Ryuk is done, limp beneath him, breathing deep in lingering pleasure. "What was that about L?" he demands, eyes half-closed.
Oh. Hadn't Light known? "What was what about L?"
"What you said, Ryuk! About him wanting to..." It's hilarious how Light's ability to say fuck falls off a cliff once he's no longer crazed with lust. "Ryuk, explain."
Well, this is going to be fun, though possibly the kind of fun that gets Ryuk yelled at. "You really never noticed how bad he had it for you? I guess him wearing his pants so loose paid off." Ryuk allows himself a cackle at that.
Light stares at him, jaw slack.
"Shinigami sleep even less than he did, remember? I was watching him drool over his videos of you practically every night while you were in that cell, once the others had gone." Ryuk can't help but growl. "Sucking his thumb the whole time. I bet he was doing the same when he had those cameras in your house too."
Light flushes, and then goes pale, and then flushes again, his eyes knife-edge furious. His chest heaves as he sucks in a breath, and Ryuk can feel him shaking but Light clings to him when he tries to pull back so Ryuk stays put. "He kept me in chains and the whole time he was- what the hell?! Rem didn't kill him slow enough!"
Ryuk lowers his head. "Would've been slower if I could've done it for you, Light-o. A lot slower." He hisses softly into Light's ear, months of hate distilled and bottled into that one small noise for Light to know and keep. "Promise."
Light shudders - and then hugs him, arms wrapped tight around his neck. "Thanks, Ryuk."
"Not sure what for," Ryuk admits, stealthily nuzzling into Light's hair. He feels like he should've been more help for the last few months, somehow, even though he's not supposed to help at all.
"Just - being yourself," Light says, and Ryuk's heart does something embarrassing at that even though he knows Light's just feeding him sugar. "Nobody else knows me like you do, you know. Nobody else loves me like you."
"Shh, don't say that." He can't be dusted just for loving Light, only if he crosses the wrong line because of it, but it's still meant to stay a secret. Light, Light-o, you know I'm a liar, you know I'm on your side but you can't make me say it...
But Light only smiles at his denial, Kira-sharp and so infinitely knowing. "Well, I love you, Ryuk," he murmurs, sweet and lethal like the words are a blade.
And Ryuk swallows a whimper as he's cut right through. His withered insides are tied in knots and his heart is pounding and this is the best part, his ultimate favourite vice that's going to be the end of him one of these nights. The thrill of knowing and being known by someone who doesn't fear what he is, who enjoys having his black heart twisted between their fingers and his monstrous power at their command.
Someone who welcomes him in, feasts on his darkness, and feeds him with their own fire.
Apples, nothing. His true addiction here is and always will be Light Yagami. "Light-o," he protests, and bites his real answer off his tongue before it can escape and damn him.
I love you too, I love you, I love you.