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Loki was a snake.
Thor didn’t mind at all. He liked snakes and he liked Loki, and Loki lounging as a snake on his shoulders was not in the least bothersome. But it wasn’t entirely what he had intended when he encouraged Loki to join him at Tony’s party.
Thor had wanted Loki to meet and get to know, perhaps even become friends with, his friends on Earth. Since Ragnarok, Thanos’ brutal attack on their ship, and Loki somehow avoiding what would surely have been death for anyone else, Thor and Loki had reached Earth. After, of course, a detour to slice off the titan’s head as revenge for almost killing his brother.
Thor had handed the crown to Brunnhilde, and then they’d found a house with Tony and Bruce’s help - just for Thor and Loki. Thor continued to fight for the Avengers and to see his Earth friends, but mostly he and Loki simply spent time together and slowly rebuilt the affection and trust that had once existed between them.
Thor was happy, but he wished Loki could enjoy the same full happiness that he did. He wished he would get to know Thor’s friends, let them get to know him, so they’d see why it was Thor adored him so much.
Thor had wanted that to start today, but Loki was a snake. He was at least joining, which was progress, but he wasn’t talking. He was sitting on Thor and stealing his alcohol, making people worried about whether or not snakes should drink whisky.
Some of Tony’s guests seemed bemused or wary of the snake, but Thor’s friends didn’t mind at all, even after they learned it was Loki, so Thor was still happy, still had an enjoyable time, and he didn’t begrudge Loki in the least.
It would take time for his brother to open up, and that was alright.
They had time.
When they returned, Thor feeling a pleasant buzz from the Stark’s always excellent and copious alcohol, he had anticipated Loki would transform back and be smug about having fulfilled Thor’s desire that he should join the party but doing it in his way.
But he wasn’t.
As Loki transformed back to himself, barefoot and wearing just a perfectly ironed green shirt and black pants, he stalked away from Thor without a word, entering their bedroom.
Thor followed with a small smile, seeing from the way Loki walked that he had something in mind.
Where Loki stopped told Thor the manner of exactly what he was planning - not at the bed but at the larger area they used for more exotic activities than sleeping or mere sex.
Thor paused in the door and watched as Loki turned to face him, carefully unbuttoning his cuffs and rolling up his sleeves to the elbows, before raising his arms. With his magic, he drew the chains that looped over a crossbeam down towards him, opening the shackles at the ends and placing them around his wrists.
“What’re you doing?” Thor asked, tilting his head and folding his arms, a smile pulling at his lips.
“I’ve displeased you by not talking to your friends,” Loki murmured in a voice like rich dark velvet as the shackles closed around his wrists, “I’m allowing you to punish me.”
Thor stepped slowly forward, the heels of his formal boots clicking against the hardwood floor, and circled around Loki to stand behind him.
He took his time slipping off his own coat, tossing it to the side, before roughly tugging on the middle of the chain, pulling Loki higher, straining his muscles, “If I truly wanted to punish you, I would leave you here with your desire unfulfilled.”
He stepped closer, his body pressed against Loki’s. Wrapping a hand firmly around Loki’s neck, he forced his head back, heat rapidly pooling within him at the sound of Loki’s harsh intake of breath.
Loki’s neck had always been sensitive. Thor could bring him to a state of deep arousal simply by toying his fingers over the veins and tendons of his neck, applying a tantalisingly gentle pressure. After Thanos’ attack, when they first began to sleep together again, Thor had been afraid to touch his neck at all, and it had taken Loki grabbing his wrist and placing his hand there to convince him it was fine.
Even more sensitive now.
Thor feared such touches would spur his trauma, but they had only the same effect as before. More potent.
“Fortunately for you, I am feeling merciful,” Thor whispered against Loki’s ear, “Speak your safeword.”
“Casket,” Loki breathed, his voice already thin from the pressure on his neck.
“Good,” Thor released him slowly, letting his nails scrape over the pale skin of his throat, then stepped away.
He took up Stormbreaker and calmly, smoothly, sliced down Loki’s back from his shoulder to hip, cutting through the fabric of his shirt and the skin beneath, drawing an exquisite gasp of pleasure from Loki’s lips.
“You couldn’t do that with Mjolnir.”
“Shut up. Did I say you could talk?”
“I do what I want.”
“You do as I command.”
“Not until you bring me to heel.”
“Then I shall do so,” Thor replied, swinging his great weapon with perfect precision, slicing through each arm of Loki’s shirt in turn so it fell away, clinging on where it tucked into his pants but leaving his upper body bare.
Pale skin already marked with blood, the red stunning in stark contrast to the near white it trailed over.
As Thor stepped closer, he wrapped the arm holding Stormbreaker in front of Loki, pressing the flat blade against him, against his crotch, drawing a small moan from his lips.
With his other hand he tugged the shirt from Loki’s pants and threw it aside.
Slowly, smoothly, cold metal gliding over cool skin, Thor raised the sharp blade up and under Loki’s chin, pressing his head back, shutting his eyes and indulging in the sound of Loki’s hastened breaths.
The thrill of the danger, knowing Thor held his life in his hands and could easily kill him with a single sharp movement, but that he never would.
Then Thor suddenly dropped his weapon and Loki’s sound of weak protest was just as alluring as those of pleasure.
Thor pressed a hand to his bloody back, slid it down and let it follow him as he walked around to Loki’s front, kneeling and pressing a kiss to his naval as he unfastened his pants.
Or pretended he was going to, but then promptly tore them from his body with one rough movement, drawing a sudden grunt of surprise and pain from Loki, his body left swaying, unbalanced, from the aggressive movement, his feet struggling to find purchase on the floor again.
With all of Loki’s flesh now exposed, Thor began to offer soft, gentle touches and kisses to his skin, a contrast to the pain and violence he had brought upon his back.
Loki writhed, reacted, pulled at the chains as he grew more and more intoxicated by the loving caresses, the worship of his body that Thor willingly gave.
“Thor…” Loki near whimpered as Thor’s strong hands softly brushed down his sides and he peppered his hips with light kisses.
Thor looked up at Loki, but let his fingers still gently, softly, play over his skin, “It sometimes seems that a tender touch hurts you more than any blow or blade, brother.”
Loki swallowed, Thor watching the motion intently.
Then he suddenly surged up and grabbed Loki’s throat tight in his powerful grip.
The sudden change and the pressure against his neck had Loki gasping a hitched whimper, struggling against the chains instinctively before he relaxed, his body trembling and his arousal pressing against Thor’s body.
His parted lips invited a kiss and Thor took it.
Deep and demanding, but brief. Brief enough that Loki tried got chase it, but couldn’t move with the firm grip around his neck.
“You want to be punished?” Thor asked in a dark whisper, “Or shown tenderness? Shown affection and love? Which would hurt you more? Which would make you cry out and beg me to stop?”
“Why don’t you find out?” Loki challenged, but his voice trembled, the words breathless and his eyes rich with want and need.
Thor leaned in as if about to kiss him, but pulled back before their lips touched, stepping away and walking around behind Loki.
He stood there.
Silent.
Making Loki wait, enjoying how his breaths grew quicker the longer Thor left him tied up there naked, bloody, cold, teased and aroused.
Finally, Thor reached out and took a whip from beside him. Leather, multiple tails, sharp and hard and harsh, and Loki adored it.
It was his favourite, and so Thor loved it too.
Loki managed to bite back a cry of pleasure with the first crack of the leather against his skin, but by the fifth he was holding back nothing, allowing his voice to sing with the sound of the whip and Thor’s own breaths.
Thor kept going until Loki’s legs buckled and he failed to stand up again, his sharp, strained breaths filling the room. Thor was breathing heavily too from the exertion of wielding the whip, and the arousal he couldn’t contain at the sounds of Loki’s cries of pleasure and pain and the way his body jerked and tensed with each new blow, every muscle beautifully displayed for Thor to admire.
Holding his hand out, Thor summoned Stormbreaker to it and immediately sliced through the chains, dropping Loki hard onto the ground, and giving him no time to recover before he was pressing his head down with one hand and pulling his hips up with the other.
But he paused, offering Loki the chance to call an end to this, and looking at Loki’s hole. Loki did not speak his safeword and he had used his magic to prepare himself already.
He wanted the same as Thor, so Thor gave it to him.
Lining himself up, he pressed inside Loki, getting the angle perfect and allowing a moan to escape his lips and he buried himself entirely within Loki.
For a moment he paused, allowing Loki the time he needed for his body to adjust and a little longer still until Loki was harshly growling at Thor to “Fuck me already!”
So he did.
Thor immediately set a harsh and fast pace, so far gone with arousal that he had little self control for anything else, and had Loki not enjoyed sex like this, he’d have left the room to finish himself off. But Loki did. He liked it rough and punishing, and Thor knew from the cries of pleasure and the way his hands fumbled to find purchase on something to grip that this felt as perfect for him as it did for Thor.
Release did not take long for either of them to find. Loki came almost as soon as Thor tugged him upright and closed a hand around his arousal, and Thor followed not long after, collapsing bodily against Loki and riding through his orgasm with slow, deep thrusts, his hands finding Loki’s and gripping them, fingers laced together.
As his breath and awareness returned to him, Thor carefully, slowly, pulled out, stroking Loki’s hair as he whimpered at the loss.
“I’ve got you,” he soothed shifting on his knees to grab the keys for the manacles. He unlocked the metal around Loki’s wrists, pressing a light kiss to each bruised wrist, before going to get the aftercare kit from the bedside table.
As he began to clean the blood from his skin, Thor traced a finger along the edge cuts from Stormbreaker.
“I am sorry,” he murmured, gently wiping the wound with the antiseptic, “These are deep.”
“I like it,” Loki murmured tiredly, a smile playing on his lips, "Stormbreaker cuts so cleanly. And I like being pleasured with the same blade that cleaved Thanos’ head from his shoulders. I’m only sorry I didn’t see it.”
“So am I,” Thor whispered, “I did it for you.”
“I know.”
They fell silent as Thor continued to clean and apply ointments to the wounds he’d inflicted. There was no use bandaging them - they’d have closed up by morning - so Thor pulled out the finely woven soft nightshirt Loki owned for nights just like this. It was such that it wouldn’t leave fibres in the wounds, and would protect and keep them clean until the skin had knitted together.
He cleaned himself up more quickly and with less care, eager to help Loki into bed and snuggle, to offer comfort. Safety.
“Are you well?” Thor asked softly as they settled into bed, Loki laying with his head on Thor’s chest, an arm around his torso, and Thor’s hand resting just below where he knew the wounds ended.
“Perfect,” Loki breathed, “Are you?”
“I am most certainly well,” Thor smiled and shut his eyes, “Thank you for coming with me to Tony’s party tonight.”
“Thor, I was a snake.”
“But you were still there, and you have not felt able to do so before. I am grateful to you.”
“You’re welcome,” he paused, then added, “It was not entirely awful.”
“They are not entirely awful people. Perhaps one day you will choose to join as yourself.”
“Perhaps one day I will,” Loki smiled and leaned up to kiss his jaw, “Perhaps that day shan’t be too far away.”
“I shall be glad whenever it happens to be, whether that is mere weeks or even years from now,” Thor smiled fondly, “I am more than happy enough that we still have each other, and even should you never feel able to be yourself in the company of others, it will always be enough for me just having you here.”
“Sentimental oaf.”
“I know.”
“I feel the same.”
Thor smiled and bent his head to kiss Loki’s hair softly, “I know.”
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