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It was a little easier when Rin was younger. He was the perfect picture of the obedient little brother then, always ready to listen to any of Sae's requests. An adorable, fragile little thing that had been his since before he was born – of course, the reverse was true too. When Rin's small hand wrapped around his finger, Sae knew he was a goner – a memory that shouldn't be lingering in his brain because of how young he was when it happened but still, he remembers. It's a little different now. Sae isn't sure if it's puberty robbing Rin of his honesty or if the regrets from letting Isagi Yoichi score remain strong in his heart (as they should), but one thing is certain – Rin's mood is worse than it was on the field. In a way, it's a good thing – proof that his spirit stands strong.
That doesn't mean he isn't cooperative though. Rin's body is pliant under his hands, offering no resistance at all when Sae slammed into him without much prep earlier – the way he remembers Rin liking. Silence fills the space between them only broken by the occasional “aniki” that slips out of Rin's lips – there's no need to exchange words when their bodies can do the talking. Like on the pitch. Recalling their last duel and the slight satisfaction it resulted in, he exhales.
Pushing away the sweat-soaked blue kit, Sae's hand slides on his brother's exposed stomach, smearing a mix of sweat and the precum leaking from Rin's cock over it. His muscles weren't that defined the last time they touched each other five years ago – Rin felt soft under his hands then, barely out of childhood and into adolescence. Some things don't change though – his brother's hands clutching his kit in such a way that the creases will stay for hours, the smell of after-match sweat clinging to their skins, the staccato-like moans falling out of Rin's mouth, his voice lower than it was in Sae's memories. It brings back memories from Kamakura, from the youth club changing room where after practice with only the two of them, he bent over Rin more times than he can count.
Sae's index traces the contours of Rin's muscles, dipping lower to circle his navel, a feather-like touch that makes his little brother throw his head back and tighten around him. That idiot is too sensitive for his own good, though that's probably Sae's fault and no one else's. It's obvious when Rin's just like him, too focused on football to ever enter a relationship with someone – outside of each other of course. Football over anything, just the way it should be. Above each other too maybe. Sae leans in to steal a kiss, unbothered by the drool pooling in Rin's mouth that he laps up. Despite what he said earlier, Rin doesn't really need to fix that habit, at least not during sex – it's kind of cute.
If there's one thing Sae misses though, it's how clingy Rin used to be during sex, almost a nuisance who made everything last longer than intended because he insisted on sticking too close, hugging Sae tight and preventing him from moving. A proper spoiled little brother. There are still glimpses of it under his sullen exterior in the way his hands are wrapped around Sae's back, in a half-assed possible attempt at a hug, or how he nips his lips, begging for a deeper kiss even if his expression stays somewhat bitter. Still, his legs rest on the bench, unmoving, and his hold on Sae's kit is too fragile.
The next thrust helps with that. Sae pulls out for a second, before thrusting back in, purposefully going for Rin's most sensitive spot, and it works well enough – the turquoise of his eyes grow glassy, and he blinks, tears rolling down his cheeks. A choked breath escapes Rin's throat, and he buries his face in the crook of Sae's neck. A second later, Sae feels his brother's legs – a striker's legs, strong and powerful, wrap around his lower back, holding him in place.
“Nii-chan, don't–”
Sae doesn't catch what Rin says next – nothing but a whisper that melts away before reaching his ears. If Rin doesn't feel like saying it out loud it mustn't be that important. He doesn't have the time to dwell on things right now. The once familiar sensation of Rin's tongue lapping at the sweat gathered at the back of his neck feels new after so many years, sending shivers down his spine. He can barely move now and heats pools up deep inside him the longer they stay like this – he clicks his tongue and Rin's hands grip his shirt harder.
Shallow hip movements are all he can manage – the bench is narrow, and the smallest mistake could make them fall and injure themselves. Slow and steady is his only option though not the one he prefers. With one hand on the cold metal of the bench to steady himself and one teasing Rin's cock to make things go faster, Sae pushes inside Rin again, gently this time. His little brother hasn't moved, clinging to him as he would with a lifeline – it reminds Sae of a younger Rin not letting go of him when they had to separate for school.
The rhythm he imposes on Rin – a pump for a thrust – seems to have the effect he hoped for. A string of slurred “nii-chan, nii-chan, nii-chan” is the last thing Rin says before he comes, spilling into his brother's hand but still not letting go, his hold as strong as before. A true athlete's stamina – not bad. Sae is on edge too, not thanks to the pitiful dose of adrenaline this match offered but because of Rin's warmth all around him, beckoning him to lose himself in that sensation of becoming one. Sae doesn't fall for it – now is not the time to rest. Holding Rin's waist with both hands, he thrusts as deep as he can inside his overstimulated little brother before he peaks.
It's only when Rin hits his back, trying to make him pull out that Sae moves. He looks at Rin's face, his cheeks flushed and his hair sticking to his forehead as he does. The spark in his eyes now makes him look less mature than usual, more his age. It lasts only a split second, just to disappear again when Rin glances at him with the same sullen expression as before, quickly looking away with a forced tch. When did he become this cheeky?
The last kiss they share before Rin bats his hand away and makes a beeline for the shower tastes like the Blue Lock branded sports drink that Rin dropped on the floor when they started kissing – Sae picks it up and takes a swig before pouring it down Rin's mouth through a sloppy kiss. When his little brother's saliva mixes with the artificial blue drink, it becomes nauseatingly sweet.
Today hasn't been a waste, he thinks as he leaves Rin behind, though it isn't a complete victory. The talent he saw in Rin that day, buried deep inside him, too deep for anyone to dig out properly, has not yet fully bloomed. It's not something to be sad about however – if anything, Sae is glad it's still there, lurking behind the surface, waiting. Last year, this talent was withered, trampled on by this country's lukewarm attempts at playing football. Becoming Sae's replacement? That's not what Rin was supposed to do but Sae guesses it was unavoidable. Rin had always been too reliant on him. (Sae had been like that too before Spain.) There's still hope for Japanese football and for Rin's talent to bloom… Even if Sae isn't needed for his awakening anymore.