Work Text:
"Don't you have homework to do?"
Ritsu glances away from his phone to give Rei, standing in his bedroom doorway - and seriously, he could knock - an annoyed look. "I'll do it later."
Rei rolls his eyes, approaching; Ritsu knows that he's about to get his phone taken away until he's finished with his homework, and really, it's annoying that Rei's so insistent about Ritsu doing his work now that he's actually healthy enough to attend classes regularly. Not that he wants to go back to being that sick, but at least Rei was a lot more lenient with him...
So, naturally, Ritsu rolls over, clutching his phone to his chest. He knows that he can't really keep things from Rei, really, but maybe he'll be nice if Ritsu acts nice in return...? "Nii-chan, I promise I'll do it in a few minutes, please?"
Rei... sits at the edge of his bed, which is... maybe promising? At least he's not immediately prying at Ritsu. "Haven't you been on that thing since after dinner?"
"No," Ritsu lies, because he absolutely has been, but he's been in his room. Rei doesn't know for sure.
It seems it doesn't matter, though, because Rei's leaning over, scooping a hand under Ritsu's far side, making to flip him over. "Liar. Ah, really, my sweet, innocent Ritsu's grown up to be so naughty..."
Ritsu doesn't weigh enough to resist the pull, even at the strange angle Rei's pulling from, so he simply curls himself in a tight ball instead. "I said I'll do it in a few minutes!"
Alas, Rei doesn't take the bait. "No, you'll do it now, and you can have your phone back when you're done."
It's a little meaningless, really, just something like teenage rebellion - never mind the fact that Rei's only ten months older than him - and honestly, Ritsu should just give up his phone and do his homework. He knows that. But even though he loves Rei very much, Ritsu's always been stubborn, so even though this is honestly quite a pointless thing to bicker about, Ritsu resists anyway, writhing and kicking at Rei mildly, not really aiming to hurt, just trying to shove him away a bit.
It works, sort of - probably only because it caught Rei off-guard - and for a moment, they're both silent, Ritsu curling himself around his phone again childishly.
It very quickly devolves into some sort of wrestling match, as Rei pounces, Ritsu yelling at him as they start squabbling over possession of the phone.
In some ways, it's... kind of nice, actually. Ritsu didn't used to be able to do things like this, and although it's probably not the best thing to be happy about, he does like being able to do things that others his age can do. It's weird to say, and Ritsu absolutely hates pain, but he actually kind of likes that Rei's being a little rough with him. He's still holding back, of course, Ritsu knows that - he's seen Rei move heavy things around without breaking a sweat, Ritsu knows he's strong even if he doesn't usually show it off - but he's not just relenting or treating Ritsu like he's still so delicate that he'll break if anyone so much as looks at him the wrong way.
... Maybe a little too nice.
Whether it's the fact that Rei's handling him just a bit roughly, or just the proximity and contact at all, Ritsu's body starts responding in a way he would very much like to deny. Ah, Rei's his brother; it's not the first time Ritsu's had thoughts like that about him, but obviously Ritsu hasn't said anything, let alone acted on it, because they're siblings. Rei would surely be disgusted with him, and that's the very last thing Ritsu wants. He should just hand over his phone and promise to do his work and kick Rei out. It doesn't take much for him to get off, he's still pretty inexperienced, he's sure he could quickly rub one out before starting on his homework without making it take too long, lest Rei get suspicious and come to check on him again...
But his stubborn pride wins out, and instead of doing the smart thing and handing over his phone, Ritsu bites Rei's hand instead.
Rei freezes, not out of anger or pain or anything - at least, Ritsu doesn't think so, although he does taste blood - but only so that Ritsu's fangs don't drag through more of his skin and actually do damage, Ritsu thinks. Rei didn't so much as wince and isn't telling him off, either, so that's probably the case...? Well, in any case, Rei stopped moving, and Ritsu takes the opportunity to shove his phone under his shirt. Even that probably won't dissuade Rei, since he's bathed Ritsu any number of times - not recently, of course, but point being that Rei's not exactly afraid of touching Ritsu's skin - but at least it might slow him down a bit.
Instead of going directly for it, though, Rei just raises a brow at him. "At least drink it, if you're going to spill it."
Ritsu blinks, loosing his fangs from Rei's skin, and, ah, Rei doesn't move his hand away or anything. Ritsu knows he shouldn't - not for Rei's health, the blood's already spilled, it's too late for that - but because that sort of contact... but it really would be a waste... Ritsu can't help himself at the smell and the fact that Rei's given him permission, and laps at the blood, eyes half-lidding and cheeks flushing darker in pleasure at being fed.
Rei leans in. His hand remains in front of Ritsu's mouth, his other hand holding Ritsu's shoulder, having been half-way to wrangling him into rolling over again, and that one doesn't move, either. Ritsu's not quite sure what Rei's up to, but shoots him a mild warning look, probably rather ineffective with how he looks at the moment, but Rei ignores him and gets closer. Ritsu's body is a lot more responsive than he'd like, and even just the proximity... Why is Rei so close to his ear, ah...
"Mm, is that why you're being so bratty? Onii-chan will happily feed you if you only ask."
Ah, Ritsu really can't help it; the taste of Rei's blood, which always makes him feel good, and Rei speaking directly into his ear with his voice all low like that, calling him a brat, even though it should be something for Ritsu to snap at him over... Combined with the fact that he was already aroused, Ritsu comes, untouched, whimpering around Rei's hand.
Rei draws back enough to blink at him. "... Did you just—"
Ritsu slaps a hand over Rei's mouth, horrified, but then releases Rei's hand, rolling over abruptly to hide once he's sure Rei's not going to keep talking, or at least not right away. Ritsu definitely does not want to acknowledge it, nor see how Rei will react. Snappish now that his mood is soured again, Ritsu hisses, "Go away! I'll do my homework, so..."
Ah, he's the worst, Rei's going to hate him, or at least be disgusted with him, because they're brothers, they shouldn't—
Rei's hand on his shoulder abruptly pulls him back over. Ritsu startles, whipping his head to the side to avoid making eye contact. He feels like he could cry.
Before he even gets the chance to open his mouth, Rei's other hand is down his pants. Ritsu jolts, breath hitching; Rei doesn't grab him or anything, though his hand is in Ritsu's boxers, but after a moment, Rei withdraws it, fingers messy with Ritsu's cum. Ritsu is still too nervous to even look at him, really, but he can't quite help glancing over briefly, mostly because he's confused by that turn of events. Not mad about it, just not sure what Rei's doing...
Rei makes eye contact, holding it as he licks his fingers clean, and fuck but that sends another jolt of arousal down Ritsu's spine. "... My adorable Ritsu likes being handled a little roughly, huh? Well, onii-chan would happily give you this, too, you know."
Oh.
Ritsu feels relieved and horny and desperate for a kiss all at once. "... Nii-chan."
Rei leans down, obliging, and Ritsu surges up, pushing against the bed, sitting upright—
Causing his phone to fall out from under his shirt, into his lap, where Rei promptly grabs it. Ritsu breaks the kiss to scowl at him; Rei didn't do that just so he could get his hands on Ritsu's phone, right? He knows Rei plays dirty, but that would be too far...
Rei kisses him again before he can fuss, less urgent this time but still just as deep. Ritsu still feels a little huffy about having his phone snatched, but at least relaxes somewhat at being kissed again. This time, Rei breaks it, but stays close, leaning their foreheads together. "... Do your homework, and onii-chan will do anything you like afterwards with you, okay? And, of course, give you your phone back."
Ritsu pouts at him, but admittedly, it doesn't sound like that bad a deal. "... Fine."
Rei kisses his temple. "Good boy."
... Being called that doesn't exactly hurt, either. Ritsu shoves at Rei petulantly. "Whatever, go away." Rei snickers, but leaves as requested. Ritsu stares at his desk.
Focusing on his homework sounds impossible, but... If Rei won't hate Ritsu for wanting to sleep with him, and in fact seems to want to sleep with Ritsu, too, then... Ritsu will do it.
... But first, he needs to get changed.