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Kaiser doesn’t object when Isagi crawls into his lap, or when Isagi runs his hands down Kaiser’s sides.
If anything, he seems pleased—like all of the taunts and jeers have been leading up to this inevitable outcome, and he’s simply been waiting to collect his destined prize.
It makes Isagi’s blood boil, but he can’t deny the way he wants this, too. The pleasure he feels when he smashes their lips together, or when Kaiser’s hands find their way to his hair, holding on a little too tight.
Isagi is halfway tempted to bite, to see if the taste of copper between their lips might make him feel more justified in indulging himself this way, but he resists the urge. It's not worth having to hear Kaiser explain the split lip later.
“You’re a shitty kisser,” Isagi says when their lips part, and Kaiser laughs.
“Please,” he says, “you don’t even give me a chance.”
“Just did.”
“That hardly counts as a kiss, Yoichi. Where’s the love? The romance?”
Isagi doesn’t dignify it with an answer. Instead he just pulls himself up from Kaiser’s lap and stands, tugging his shirt up and off over his head so they can get this over with quicker.
Undressing in front of Kaiser is an entirely unpleasant affair. Kaiser’s sharp gaze cuts into his skin like a knife, lingering and unwelcome. “You have a nice body,” he says, as casually as he might comment on any player’s physique during a match. His nonchalance makes Isagi’s skin crawl.
“I might think yours was nice if you would just keep your mouth shut,” Isagi is quick to snap back, tossing his clothes to the ground.
Kaiser laughs as he watches. “Oh come on, I can tell you like it,” he says. “You’re here after all, no need to play coy.”
Once more, Isagi doesn’t respond. Just gets back onto the bed and back onto Kaiser’s lap, skin against skin. Kaiser is hard already, and he can’t even blame him because he’s starting to feel it too.
As soon as he’s back on him, Kaiser is leaning in to kiss Isagi’s neck, mouthing at it. Isagi lets out a little moan but pushes himself back from Kaiser, leaning away.
“Stop,” he says. “I don’t want any marks.”
Kaiser sighs, but obliges him anyway. “Not any fun, are you?”
Isagi just rolls his eyes. “You wanna explain them to everybody?”
“Oh, I wouldn’t mind.”
“Of course,” Isagi says. “I shouldn’t be surprised.”
Isagi thinks he’s probably already made a mistake by talking so much—it’s playing into exactly what Kaiser wants, giving him the chance to try to provoke Isagi.
Isagi is quiet as he lines Kaiser’s dick up with his hole and slowly lowers himself onto it until he’s full, only letting out little pants as he tries to adjust to the size.
“Good boy,” Kaiser purrs. Isagi scowls.
“Don’t play nice just because your dick’s inside me.”
“Ah, but you have been good, Yoichi-kun,” he sings, and Isagi can only scoff at the honorific.
“Shut the fuck up,” Isagi says.
Kaiser’s grin makes it clear that he’s into it, and Isagi almost wonders if it would be better to just be nice to him. At least then he wouldn’t be giving Kaiser what he wants, but—somehow he’s sure that Kaiser would be into that, too.
Thankfully, Kaiser is quiet after that. Just brings his hands to Isagi’s hips and holds him as Isagi slowly lifts himself back up, then back down.
It’s easy to enjoy it when Kaiser isn’t running his mouth. Kaiser’s cock is the perfect size to fill Isagi up without being uncomfortable, and Isagi has found the perfect angle to hit his prostate each time he sinks down onto it.
“Ah, you’re so good, Isagi,” Kaiser sighs at some point, breaking the silence between them. “Too good, maybe.”
“What’s that supposed to mean?”
Kaiser sort of shrugs, rubbing idly at Isagi’s hips. “I didn’t expect you to be so… docile. You talk a big game, but that’s all it is—talk.”
Suddenly, Isagi remembers why he always thought sleeping with Kaiser would be a bad idea.
“Fuck you,” Isagi spits, and Kaiser grins.
“That’s more like it,” he says, delight evident in his eyes and tone even as Isagi’s hands close around his throat. “That’s the Yoichi I like to see.”
“I—could choke you,” Isagi says, pressing down gently, no more than a threat, “if you want me to show you just how docile I am.”
Kaiser brings up one of his hands to rest over one of Isagi’s. As if to ensure he doesn’t back down now. “Don’t let me stop you.”
Isagi just scowls at how easily he goes along with it. “I could kill you.” He’s not sure how convincing of a threat it is when he’s moaning between every other word, still grinding down onto Kaiser’s cock, but he says it anyway.
The alternative is rolling over and letting Kaiser win, so it’s not as though it’s a real choice in the first place.
“Maybe so,” Kaiser laughs, a little breathy. “But you won’t. Nobody else can give you this. Not Kurona. And certainly not that brat from Barcha—”
Something in Isagi snaps. It’s obviously what Kaiser is gunning for, but he can’t help it. As much as he hates to admit it, Kaiser is fucking good at what he does.
Isagi wonders if he might be able to make Kaiser regret letting them get into this position. Probably not, and Isagi wouldn’t really want to hurt Kaiser, tempting as it may be, but—he can’t resist the temptation of a little taste, not when Kaiser so clearly deserves it.
His fingers squeeze around Kaiser’s throat, tighter and tighter as Isagi continues to fuck himself on Kaiser’s cock. He can hear and feel Kaiser gasping for breath under him, and it’s addicting. Isagi finds that he likes the sound of his desperate breaths much better than the sound of his voice.
Still, he lets go after only a few moments, both of them panting.
“Fuck, Yoichi…”
“You really like that, huh?” Isagi asks, letting out a little moan as Kaiser thrusts up into him.
Kaiser lets out a weak chuckle, fingers pressing into Isagi’s hips. “I like you, Yoichi-kun,” he says, and Isagi might have thought it was sweet coming from anybody else. “You can always touch me anywhere you like.”
“Shut up,” Isagi groans. “You shouldn’t waste your breath.”
That makes Kaiser laugh a little too. “What, are you gonna make me regret it?” he asks. “I doubt you have it in you.”
He brings up a hand to curl around Isagi’s cock and he lets out a long moan, jerking up toward the touch. He hadn’t even realised just how close he was getting. Then the touch is gone and Isagi groans, grinding down onto Kaiser. “Kaiser—”
“Again,” Kaiser says. “Don’t stop.”
Isagi hesitates for a moment, but he knows it’s too late to turn back now. There’s something exhilarating about seeing the wild look in Kaiser’s eyes as he presses down again, fingers digging into the taut skin of Kaiser’s neck and cutting off his airflow.
Almost as soon as Isagi is choking him again, Kaiser is coming, rutting up into Isagi. His eyes close and Isagi almost instinctively lets go because of how sudden it is, but he doesn’t.
He holds on tighter and matches the movements of Kaiser’s hips, head hanging down as he rides out Kaiser’s orgasm. He’s painfully close too, but he doesn’t dare lift a hand to touch himself—doesn’t dare to let go of Kaiser, now.
He only lets up on the pressure once he’s stuffed full with Kaiser’s come, and Kaiser is still beneath him.
Isagi keeps grinding down onto Kaiser as the man tries desperately to catch his breath once more, skin flushed more than Isagi has ever seen it.
“Oh my god,” is all he says, and Isagi is rather proud of being able to take his words away for once.
“Touch me,” Isagi says. “I—I’m so close Kaiser, please.”
Kaiser doesn’t speak again, but he does reach up between them, fingers closing around Isagi’s cock. He lets out a little whimper immediately at the contact, his own eyes falling shut as he bucks up toward him.
Between Kaiser’s hand and the little thrusts down onto Kaiser’s cock, it doesn’t take long for Isagi to come, too.
He moans Kaiser’s name in time with his release, practically collapsing down onto Kaiser as his body gives out from the exhaustion of riding him. Kaiser holds him steady as he strokes him through it, his come a mess between them.
Isagi stays there for a moment while he catches his breath, but eventually pushes himself off of Kaiser, slowly pulling himself off of his cock and wincing when Kaiser’s come trickles out. He feels gross, and the fact that it’s Kaiser hardly helps the situation.
He lands on the bed and stares up at the ceiling for a few seconds before turning to look at Kaiser.
Isagi frowns a little, not used to him being so quiet. He doesn’t think he’s gone this long without talking in the entire time Isagi has known him.
“Hey,” Isagi says.
“Mm?”
His frown deepens, trying to think of something to get him to talk. “I didn’t know you liked… being choked?”
Kaiser just sort of shrugs.
Isagi is about to ask if he hurt him or something, but then Kaiser smirks, and Isagi wishes he hadn’t worried at all.
“It was your idea. Besides, I wouldn’t be a very good mentor if I didn’t teach you a new thing every now and then.”
Isagi rolls his eyes. “Right,” he says. “Because this counts as teaching.”
“You learned something new, didn’t you?”
“Just clean me up so I can go get dinner.”
“Come shower with me, then.”
Inevitable, like most things with Kaiser. “Fine,” Isagi says. “But I’m not having sex with you again.”
“Just like you weren’t having sex with me even once, I assume,” Kaiser hums, finally wiping his hands off on the sheets and sitting up a bit.
“Shower first,” Isagi says, reaching up to drag his knuckles over the exposed skin of Kaiser’s throat, just to see the way Kaiser shivers. “Then we’ll see.”