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Nix dipped his head beneath the surface of the water again, keeping his eyes closed against the faint sting of the chlorine. He'd either gotten out of practice when it came to swimming or he'd forgotten how to count properly, and this would make for his eighth lap of the pool just to be sure.

Being an otter, of course_he had to be good at swimming - not only because of the whole _"oh, you're an otter! are you on the swim team?" expectations from almost literally every person he met at school, but also because he genuinely enjoyed it. The feeling of the water running over and through his thick fur, like sleek, gentle fingers or a pleasant breeze. Something about the slight chill of an outdoor pool, just barely enough to pierce through his fur and trace tickling claws along his skin; something about the sweet warmth of a heated indoor pool like this one; something about the characteristic bite of chlorine on the air and on his body afterwards, the familiar and somehow-comforting aroma...

Quiet splash when he came up for a breath of air, and then a second as he dipped back underneath. He'd always heard that junior year of high school would be his hardest, but he never expected it to hit him hard enough to actually keep him away from the local pool enough to where he lost track of the last time he'd visited. Today was his third visit during this entire semester, and - finals were coming up in the next few weeks.

Maybe summer would be kinder.

One of the other problems lay in how he couldn't just leave his little brother at home unattended. That wasn't a rule or anything that Mom or Dad had instated, but rather more of a thing of comfort for Nix. As a freshman this year, his younger brother Kal had officially reached that age where things tended to go wrong, and when the differences between a good student and a delinquent started to come out.

Nix knew the signs himself from experience and association: the abrasive belligerence, the too-chill never-worry attitude, the constantly half-lidded eyes and scent of skunk and ash... or, in worse scenarios, the wide eyes, thin mouth, intense paranoia. Thankfully, Kal showed none of these, and even though Nix was more than certain that when alone, his little brother was doing things their parents would tell him he shouldn't, but... there wasn't anything he could do about that. So he just watched out for him when he could.

Not that he ever told_Kal that, though. Instead of _"hey, do you wanna run by the pool today?", all Nix ever gave him was a stiff "get up, we're going to pool"... though he always relented if Kal said he didn't want to, or that he didn't feel like it, or even if he just mumbled and didn't budge from his computer chair.

Admittedly, the younger otter's little growls and grumbles were cute, but and oftentimes made Nix smile to himself - but that was, of course, another thing he'd never let him see. Kal hadn't yet finished growing yet, and as such, his eyes only came even with Nix's shoulders; his rudder was a bit short, his whiskers were always a bit lopsided whenever he smiled, and he had that little hair's-breadth scar on the top of his nose...

...smooth green eyes with deeper blue-grey on the inside, the colors of a warm pond from rich shore to calm depths, and a body certainly befitting of a male otter his age. Nix had gotten a few looks at it before, sometimes when going back and forth in the showers here at the pool, sometimes at home where Kal used to have a habit of walking around in nothing but his underwear during the hotter summer days.

Nix reached an arm out in front of him for another stroke to continue with his momentum, but instead of open water felt the rough wall of the pool brush against his fingerpads. Thanks to getting a little distracted on this lap, he hadn't been keeping track of his time; here in the shallows he could lean back and relax, let the gentle burning in his arms, shoulders, and legs fade before trying again.

The otter rested back against the wall, elbows over the lip of the pool and short-clawed fingers hanging in the water. Not many people here today, as he looked around the wide, high-ceilinged room - something generally true about public facilities on weekday afternoons. Besides, the color of the sky outside quite strongly hinted at an approaching rainstorm, which had a tendency to make even an indoor pool like this one a bit unpleasant.

Constant splashing of the water, humming of the various machines keeping everything running; pattering of children's feet across the wet stone, mothers calling out to their kids, muted conversations; slow, unsteady tok, tok, tok of the waves lapping up against the walls... Nix closed his eyes, breathed the warm aroma of chlorine and mixed unfamiliar scents of a hundred different people in, held it for a moment, let it back out. Wasn't often he got a chance to really relax and enjoy himself like this. Sometimes he would really like to-

"Hey."

The sudden voice beside him made him jump, and bang the back of his paw against the wall. Right as he prepared to clear his throat and bark an annoyed response, though, he saw the green-and-blue eyes, the uneven whiskers, the tiny little scar.

Kal kept himself afloat with his arms underwater and constantly waving, holding his legs up close to his body so he wouldn't touch the bottom. At this depth, though, he could stand with his feet on the floor and be submerged only to about his belly button. "I think I'm ready to go home."

A slight pang of disappointment shot through the older otter, but... what could he do? Now probably would be a good time to wrap up, anyway. He'd had to push through steadily-growing muscle soreness for those last few laps, which remained tingling along his arms even after he'd had some time to rest.

Not wanting to stare at his brother for too long, Nix sighed and looked back towards the other end of the pool. A row of windows high up along the wall showed that this morning's forecast would probably turn out to be correct, and seeing as how they'd walked here today... "Yeah, that sounds good. Shower here or at home?"

"Psh." Kal settled down and stood up, the water coursing down off his fur in smooth trickles and cutting small rivulets in the dark brown, the creamy sand-white. Nix swallowed again. "I don't need a shower, dude."

"Yes you do."

He crossed his arms. "No I don't. You almost never shower after swimming."

"Because chlorine doesn't give me headaches that'll keep me up all night." Nix pulled himself up onto the edge of the pool, and sat there for a moment with his feet hanging in the water. More than once in the past, he'd gotten a bit of a - complication, thankfully hidden by baggy swim trunks, as a result of watching his brother's sleek form in and around the water, especially once the little ripples of muscle started to become noticeable along Kal's belly, upper chest, and forearms. He actually had trouble now not looking, and instead turned to the other side to stand the rest of the way up. "So, what'll it be? Temperature's at the lowest it's been all month, so unless you wanna be shivering when we get back..."

It seemed like things were going well for Nix today. First he got a project back today with a wonderful_98_ on the front page in bright red, his first A in that class this semester; then Kal had agreed to come to the pool with him; and in about five more minutes, he found himself stepping into the shower stall adjacent to the one his little brother had claimed, both of their trunks and towels waiting on the benches outside. Just like every other time, he'd had to turn his body away both so he wouldn't be caught ogling his brother's body, and so that Kal wouldn't see the physical response of his doing so.

For Nix, taking a shower was more of an annoyance than something to enjoy, time he could better spend doing something else. So, in and out in about seven minutes, and then he went to wait on the bench with his cold trunks tugged back up his legs and towel wrapped around his lower body, listening to the quiet hissing of the showers and occasional splashing that came in from the main pool room down the hall.

Here, the locker rooms stood separately from the showers by a large swinging door, and he may or may not have chosen a bench that provided a good view into a few of the stalls whenever someone passed by... but, it was just his luck today that this swinging door caught on its hinge and never fully closed, leaving about two inches of space constantly open.

And, it was also just his luck that the shower stall directly in his field of view was the one containing that familiar lutrine form, one arm raised up while the other scrubbed along his side. Kal had an almost effeminate build, from the slightly-thinner shoulders to the smooth inward arc of his waist and then slight curve out along his hips, with the wide base of his rudder angling smoothly into his lower back. Good legs, too, not that kind of bony and knobbly that Nix had seen on some other skinnier guys in his gym classes; Kal had been a runner in middle school, and even though he'd dropped it for his first year of high school, its results still showed.

Nix bunched his towel up in his lap, and briefly glanced around: there was a white-furred fox over near the back corner of the locker rooms, but he seemed too absorbed in - ordering the things in his locker? Tying his shoes? Whatever - to pay attention. Good thing, too, since when presented with an opportunity like this... the otter leaned over a little bit, eyeing how Kal's tail curved down around one of his legs, how the tip swished back and forth across the floor near his ankle.

It was just... God, he almost never got a chance to see him like this. Boy didn't even know how _good_he looked, with the spray of the shower running down his back and following the curves of his body. Kal had his head tilted back, eyes closed, and mouth half-open, and when he turned to the side to lather his chest... Nix unconsciously licked his lips, and swallowed again. Smooth cream-colored belly, flat lines of muscle made slightly more visible beneath the water, and then beneath...

Of course _this_wasn't something that Nix would ever tell his brother, either. Or anyone else, for that matter. All the times he'd laid back in bed and slid a paw under the waistband of his boxers, with thoughts of this same sight currently in front of him warming his mind and bringing him closer and closer to the edge... there was the fantasy of Kal pushing him down and grinding that shaft of his against Nix's muzzle, of him resting his hanging sack across his nose for him to inhale his scent; there was the one where Kal spread his legs for him, and then Nix would go down on him, bring him close to orgasm, but then would push him down by his shoulders and ride him; and the one where things would be reversed, and Kal was the one bent over with his tail raised and rump getting pounded...

For a brief moment, across the room in the shower Kal rubbed his paw up between his legs, lifted his soft shaft away from his body, cupped his sack in his webbed fingers... and then turned back away again. Sure, there'd been other boys that Nix had found himself thinking about, but none as often and as strongly as his own little brother. It felt weird at times, and sometimes the guilt got to him, but what could he do about that?

Nix had messed around with one of those other boys once in the past, in the backseat of the guy's parents' minivan after the two of them had gone to see a movie together. Not exactly the most romantic of places for a first time, in the parking lot of a franchise movie theater beneath the mixed light of the half-moon and a yellow-orange streetlamp. It had just been that one time, and it honestly wasn't too great - until Nix closed his eyes and imagined it to be Kal grinding his hips in his lap, squeezing and clenching around him, digging his claws into his shoulders and pressing his mouth firmly against his. If anything, _that_had gotten him off more than the guy riding him.

He shifted the towel in his lap again, taking a bit of sweet pleasure in the feeling of the movement, the pressure against himself through the still-wet material of his trunks. To his knowledge, Kal hadn't yet any had any experience with sex, and Nix knew that it was both selfish and quite far-fetched to think about himself being the one to change that.

That didn't mean he _didn't_fantasize about it, though. Of course not. He just knew, regretfully, that nothing would probably ever come of it, and until then he could just-

"Nix! Hello? You awake?"

His eyes flicked back towards the showers, from which they had drifted - and instead settled on that same cream-white, sleek-muscled belly he'd been staring at earlier, fur matted down and clumped together in places by the water. Thank God for this towel.

"Jesus, man, that's twice in like twenty minutes you've startled me. You gonna dry off? You know it takes, like, three hours for us to air-dry. The machines are over th-"

Kal waved a paw, accidentally flicking a few drops of warm water across his brother's muzzle. Nix blinked against it and leaned back. "No, no, I know. I just figured, what's the point?"

"What?"

Short-clawed finger pointed up to the ceiling, ears perked, eyebrows raised. Nix almost asked what the hell he was doing, but then heard it: quiet rhythmic drumming against the roof and windows.

Kal tugged his own towel a little further up his waist. "See, if you'd let me shower at home, we wouldn't be in this position."

Sigh. Nix fished around for something else to talk about, just to give himself a little bit more time before he'd have to stand up; thankfully, though, the nervousness of having a goddamn boner inspired by the same boy standing right in front of him seemed to be doing its work.

"God, Mom's gonna be mad at us when we get home - she told us to come back before the rain started..." When he stood up, he made an effort to not brush by his brother at all, and turned his head away so he wouldn't pick up his scent. Now was not the time to indulge. "Come on."

It had been hard to see inside the building, but just how long the brothers had spent at the pool could be seen in the color of the sky as soon as they stepped out into the cool drizzle. Charcoal-grey clouds up above, rippled and flowing like the thick covers atop Nix's unmade bed this morning, with no sunlight coming down through those clouds. The occasional distant rumble of thunder echoed through the humid air and the earth beneath them as they walked, each time startling a small jump out of the younger of the otters.

By the time they reached home about a ten minutes' walk away, the rain had picked up in its speed and force and thumped relentlessly against their muzzles and bodies, to the point where Nix wrapped his already-soaked towel around his head in an attempt to shield his eyes. Along the way Kal had started to walk steadily closer to him, but neither said anything nor turned to look at his older brother.

Nix avoided it as well. Some of Kal's friend enjoyed teasing the young otter about his lingering fear of thunderstorms (another reason Mom had asked them to come home early), but Nix derived no pleasure from doing so.

The rest of the night went as expected, including the short I told you that you needed to come back home before the rain started - look at you, you're soaked lecture from Mom, the did you boys have fun? from Dad, the I think I'm gonna head to bed early tonight... from Kal. Nix made sure to bring him a bowl of the soup that had been waiting for them for dinner while on his way to his own room, and found the younger otter sitting in front of his computer with another towel draped around his shoulders.

"Bed, huh?"

Kal jumped at his brother's voice, and swiftly moved the mouse to the top of the screen to minimize whatever window he had open. Call it payback for those two times today... Nix set the bowl down on the desk, but did not leave. Kal eyed him for a moment, then pulled his headphones off from around his ears and swivelled around in his chair.

"I was just getting ready to go!"

"Mhmm. Without dinner."

Even in the dim lowered lights of the bedroom, Nix could still make out the twitching of Kal's nose and whiskers. No getting around it: it smelled damn good.

"Come on, Nix. You know I don't like this kind of soup."

"Yeah?" Quiet squeaking of the mattress pushed up against the other wall when he rested his weight on it. Yet another thing he wouldn't admit, but sometimes when his brother was out somewhere else on a sleepover or something, Nix would come in here and sleep in his bed, solely because it was considerably more comfortable than his own. No other reason.

And also because Kal had a habit of not washing his sheets, so it always smelled richly of his natural scent combined with the sharper bite of what could only be his musk-

"I also know that you're lying."

Blue-green eyes shaded to a deeper moss in this light glared at him for a moment. Then, Kal half-turned back to the screen, reaching out with his other paw for the spoon. "Storm isn't supposed to go on for much longer, is it?"

"We're supposed to get the heaviest part of it in about half an hour. Why?"

The younger otter took his sweet time blowing on his first spoonful to cool it down.

Nix leaned forward. "Let me guess. So you can 'know when to unplug your computer'?"

Then, avoiding eye contact: "...Yeah," followed by silence apart from quiet sipping and then clicking as the younger brother shifted the mouse to close whatever he'd minimized, without opening it back up first. After that, it seemed like he had no real idea what to do with himself, glancing back and forth between the bowl and screen while continuing to down slow, timid spoonfuls of the soup.

"Kal..."

"I know."

Nix squeezed his lips together. Then, he flopped back onto the bed underneath him, sprawling out to the side so as not to bump his head against the wall. Glow-in-the-dark plastic stars still stuck to the ceiling from Kal's younger years, which he hadn't yet taken down either out of laziness or because, as Nix suspected, he was afraid of the dark.

"Come on, man. Don't you think it's time you get over that?"

"I literally just said I know."

"You're fourteen. That's a bit too old to be afraid of a thunderstorm."

"I'd be less scared if a tornado hadn't touched down in the school's football field last year."

"Well-"

"Twice."

...Got him there. That had been a pretty crazy storm season, with a little more than half of both of those school days spent on the floor in the choir room with all of the lights out. Nix kicked his feet back and forth, each bump against the side of the bed rippling up through the mattress.

"Besides, Nix - it's not like it's something I can just, poof, get rid of. You used to be afraid of, what, lobsters?"

"Still am." He licked his lips and closed his eyes, now breathing the mixed scents of the soup, chlorine still rich in his own fur beneath the mustiness of the rain, and then finally of his brother, always noticeable in this room. Thought he wasn't particularly sure why, his heart thumped in his chest a little bit heavier than usual. "Damn sea scorpions..."

Kal seemed to be preoccupied with his own thoughts, though, and said nothing more. After another moment Nix first sat and then stood up, briefly patted his brother's shoulder, and left the room with a "well, goodnight". Always better to close himself in his own room with his usual thoughts starting to run rampant, instead of staying with the same guy who inspired such thoughts and tightened his pants more often than anyone else... the older otter stripped down to his boxers, sighed at the familiar throbbing pressure underneath, and climbed into bed, pulling the covers up to his neck and rolling over away from the closed door.

With the drain from swimming today and the almost-comforting scent of chlorine on his fur, it didn't take long before he'd drifted off into a half-doze with the dull drumming of the rain on the window entering and leaving his consciousness. Nice and warm in the bed tonight, as opposed to the near-chill of the wind and rain outside - which had had just enough time to dry out of his fur, leaving him only faintly damp. Sure, it'd smell a little odd in the morning, but he'd been planning to shower anyway.

Another reason why he'd chosen to head straight to bed was that he almost always loved where his tired mind brought him, on the verge of sleep and dreams. Thoughts of Kal as he was in the shower, nude and sleek, firm shape of his rump and rudder visible even at that distance; brief glimpse of his shaft and balls, hanging down in the warmth of the shower, soap suds gathered in his shorter pubic fur - and God knows that would grow more as he got older, as would everything else involved in that area.

As if he didn't already have a good thing going for him.

Half-consciously, Nix grinded down into the mattress, imagining the pressure on his cock and sack to instead be Kal's belly, or his chest, or - hell - his muzzle. On more than one occasion when the two of them had been alone together, it had been so, _so_hard not to grab his head in both paws and push him down between his legs, or to shove the younger otter back where he sat, tug his pants down, and nuzzle up against that sack and shaft, breathe deep of that same spiced scent he picked up in Kal's bed, wear it on his muzzle and lips... he imagined, not of his own conscious choice but rather by the natural course of his thoughts, feeling Kal's paws squeeze on the back of his head, his claws dig into his shoulders...

Actually, he really thought he could feel those fingers gripping the side of his arm, shaking him a little, as if urging him to wake up.

But, then, a low, loud rumble of thunder did the job, shocking his eyes open with the remnant vibrations echoing through the springs of his mattress. There _was_someone clutching his arm from behind, actually, and when he rolled over to look-

"Nix..."

What little light of the stormcloud night came in through his window managed to reflect off his brother's eyes, that glimmer really the only thing visible apart from his silhouette in front of the hall light. Kal had his sleek tail wrapped around one of his legs, and he half-bent over the other otter while shaking him.

Nix opened his mouth to speak, but instead let loose a wide yawn. "Huh? What?"

"Mom and Dad went to bed, but the storm woke me up and I'm - and I'm scared, would you... would you please come in with me?"

Mom and Dad... had it really already been that long? Still groggy, Nix glanced over at his nightstand and saw, in bright red bar-numbers on his clock, 11:42. That hadn't felt like three hours.

"Well..." he drawled, but found himself kicking his legs out to the side before finishing his thought. The half-stiff remnant of his descent into fantasy earlier still weighed down the front of his boxers and threatened to slip out through the gap, but he was too tired to bother with it, and Kal didn't seem to notice (or care), either; instead, he just reached forward, wrapped his slight-smaller paw around Nix's wrist, and led him out of the room and down the hall towards his own. The hall light stung the older brother's eyes, so he closed them and stumbled along - until he felt himself being pushed down by the shoulders, just like in so many of those fantasies.

Slight jump up in more than one way, and he opened his eyes... but instead of going the way he wanted it to, Kal pushed him the rest of the way down to the bed and instead climbed in alongside him, facing away from the start. This definitely wasn't the first time that he'd brought him in to sleep with him for comfort, and probably wouldn't be the last... and Nix grumbled to himself, since he knew that this would make for a sleepless night spent in near-constant frustration and throbbing.

Now there was the warmth of his brother's body beside him as well as the blankets weighing down his chest, and the scent he'd imagined when half-asleep very real and very present in the air wafting up from underneath those blankets. Kal had wrapped one of Nix's arms around himself and now clutched it to his chest, leaving the older brother on his back looking up at the plastic stars above glowing dim yellow-green - and occasionally lighting up along with everything else in the room with each burst of lightning. The accompanying growl of thunder, without fail, caused Kal to tighten his grip on Nix's paw.

Almost without realizing what he was doing, he'd started to rub his fingerpads and short claws into his little brother's chestfur, kneading the skin and feeling his heartbeat rise and fall with the continuing rain and thunder, rise and fall... not quite in rhythm with the rising-and-falling beside him, just enough to lift the covers up and settle them back down. Nix moved his other paw down between his legs to stop that, but, God, that made it even harder to resist. Would he maybe be able to - right here, with Kal right beside him...?

Gentle squeeze, light sigh of breath, upward grind of his hips... and his brother beside him shifted but did not roll over, settling in where he lay. He, too, wore only his boxers to bed, allowing Nix to feel the also-slightly-damp fur of his back against his side, of his brother's legs against his own, the webbing between his toes tickling at the top of one of his feet as Kal stretched them out and rubbed against him.

Maybe - maybe... no, that would be too risky. Nix slid that paw back up to his lower belly, held it there for a moment, but then ended up moving it back down to cup his own sack through his boxers, to squeeze around the base of his cock again. It was just - he was able to get this close to Kal maybe only twice a year. A large part of him actually didn't want the younger otter to outgrow his fear, since that would mean no more nights with the two of them naked to the boxers, underneath the blankets in the same bed together; with anyone else, the sexual implications and tensions would be as strong as the pounding of Nix's heart.

Well. For him at least, one of these was still true.

Trying to cover the movement as him readjusting to go back to sleep, he turned his head over towards his brother and touched his nose into the other otter's short fur, right along the back of his head near the ridge of his ear. Floral soap, cloying earthiness of rain, a faint touch of his natural scent... Nix _knew_that he shouldn't be having these sorts of feelings for his own little brother, but - again, what could he do about it? If anything, desire had a tendency to be the single most powerful thing... it felt only natural to nuzzle in a little more firmly, to tighten his arm around Kal and pull him closer.

What he hadn't_intended, though, was for the smaller otter to tug right back on his arm wrapped around his chest, and end up rolling Nix over onto his side with his _very firm length pressing right up against Kal's backside through both of their boxers, right beside the wide base of his tail. Unintentional throb and grind forward, followed by a gasp of shock - not from Kal, but from Nix himself.

He kept his ears perked and eyes open, suddenly wide awake, for any noise or word of complaint or mockery from his brother... but none came. In fact, it was like Kal hadn't even noticed, but there was no way he'd fallen asleep so quickly. Not with the rain still going and the thunder rumbling through the room again, causing one of the pictures on his wall to rattle in its frame. This time, he did not squeeze Nix's paw.

So here he was. Hard, in bed with his brother, grinding up underneath his tail with fantasies and scenarios fresh in his head... this damn arousal wouldn't go away unless he took it into his own hands and actually took care of it. As hot as that sounded, pawing off with Kal asleep right here next to him, what if he woke up? What if he...

Nix swallowed, and pressed up underneath the younger otter's tail again. This time, Kal actually pushed right back against him, in turn fitting Nix's twitching length into the space in the rear of his boxers, really underneath the base of his tail - where his body heat concentrated the most, where Nix could actually _feel_his pulse if he held his breath. From Kal beside him, a little inhalation of breath... to then be let out in a contented, sleepy sigh. The younger otter adjusted his position again, and partially leaned back against Nix.

This was too much. With that last movement, Nix had settled his other paw on Kal's hip, pad of his thumb touching at the pleated waistband. If he hadn't known better, if he didn't already suspect him to be asleep, he'd think he was just fucking with him - oh God, he doesn't know I'm so attracted to him, does he? The thought flashed through Nix's head, and as if to test it, he grinded up against Kal's rear again. This time, no response.

So, then... maybe he wouldn't respond when Nix moved his paw first up and then down, sliding his short claws underneath that elastic waistband, with the rest of his fingers soon to follow. And he didn't. What harm would there be in just one touch, just one grope and squeeze? It'd satisfy a lot of Nix's fantasies and put a better picture in his mind for those fantasies, and - Kal didn't have to know about it. He could just... touch him once...

Just like underneath his tail, the younger otter's body heat increased dramatically the closer his paw came around his front. Smooth, short bellyfur became dominated by rougher, slightly coarser pubic fur; there was the firmness of flesh beneath skin and fur, the little dip of his belly button against Nix's thumb above, the - the base of his cock, warm and soft, smooth-skinned.

His heart pounded in his chest, strong enough that he actually worried it might wake Kal up. Here he was, actually doing it, actually touching and feeling his brother - and, God, it was so nice. Nix closed his paw around that cock, semi-soft, and wrapped his fingers down around the sack underneath, similarly warm and pulsing slightly in reaction to the heat of his paw. Soft squeeze, little shift upwards to get a better hold of him, another firmer nuzzle into the back of his neck and grind up under his tail... if he'd thought that he had been turned on before - now, he could feel the slickness of a drop of pre against the front of his own boxers.

One touch, he'd told himself. One touch. It was still one touch as long as he didn't _stop_touching, right? After he curled his fingers on Kal's balls, squeezing just enough to feel their firmness and weight, Nix brought his paw up to do the same to his shaft, and felt his heartbeat pick up yet again once he noticed that cock starting to gradually stiffen in his fingers, thicken out and grow in length.

Kal's girth, not as much as his own of course, gently pushed out on his fingers and led him to loosen his grip. Still, though, he ran his fingerpads along his brother's length, stroking softly and feeling the supple elasticity of his skin, the flat ridge of his head, the contour of his underside. Before long, the younger otter was squeezing Nix's wrist again and churning his hips, repeatedly pressing back against him - to which Nix responded with another thrust forward, trying to move that arm down to wriggle Kal's underwear down his legs - and then pushing forward into his brother's paw.

All without even knowing it, still held warmly in the arms of sleep. Another flash of lightning and deep rumble of thunder directly after, making Nix stop where he was in case it woke his brother up... but, still nothing. So he continued his slow, steady stroking and grinding, at one point untwining his arm from around Kal's shoulder and bringing it down his back, claws tracing lines in his fur as he went. This was something he'd do to him in his younger years, back when he used to get nightmares: it would always make the younger otter shiver, and give him goosebumps underneath the thick fur.

Now, he couldn't tell if it was that or the paw wrapped around his cock, now fully hard, that made him squirm and sigh. Nix continued down, hooked his fingers around the waistband of Kal's boxers near the base of his tail, and pulled it down while angling the younger otter's cock back in front to do the same here. Some rustling of the covers, a shuddering sigh from Nix, a similar inhalation of breath from Kal in front of him... another throb in his paw, another jerk forward, another grind backwards, this time with the fabric of only Nix's boxers between them. With that other paw still in place, he shifted to remove that obstruction, as well-

Then, another flash of lightning - another two, actually, one right after the other - and thunder louder than before, enough so as to make Nix jump. He waited a few seconds again, underwear half-down along his thighs, before scooting forward again, squeezing his own hard cock up against Kal's rear, lifting up until he could feel the ridged flesh of his tailhole against his own pre-slickened tip...

Just one touch. He squeezed his cock again, drew his paw back down to the base, curled his fingers around Kal's sack for a moment, stroked back up toward his head...

...and, then, the younger otter shifted, breathed out a gentle moan, and half-lifted his head. Nix's heart stopped in his throat.

"...Nix?" He spoke slowly, sleepily, and promptly let loose a wide yawn. Kal smacked his lips. "...That... feels good..." Then, another willful grind backwards, squeezing a tense_huff_ out of the older brother. There wasn't quite enough pre to use as lube, so the pressure and rubbing felt a bit rough on his head, but - if this wasn't exactly what he'd been thinking about just earlier in the night... "You won't - won't stop, will you?"

At first, he couldn't believe what he was hearing. Did Kal... did he even understand what was going on? He was fourteen years old - that should be old enough, but... the way he twitched and throbbed in Nix's paw, how he pushed forward every time his brother drew his paw back, how he openly pushed his rump back against the hard shaft under his tail... that guilt started to come back, but still Nix couldn't stop his paw, couldn't stop his hips. His body wanted it too damn much.

But then, in the same voice heavy with drowsiness: "I won't tell Mom..."

Nix swallowed - and then shoved his nose into his brother's fur from behind, right up against his ear again. Underneath the covers, he stretched his toes out and wrapped his legs partially around Kal's.

"No," he breathed, continuing to stroke the younger otter in the same slow, steady rhythm. "I won't stop."

With that, Nix braced his paw on Kal's lower back, and started to slide down along his body. The younger brother half-turned to look at him but said nothing - and then seemed to get the idea once that same paw caressed the base of his tail, Nix's thumb hooked underneath to lift it up. Right there, right underneath the base and in his rump where the head of his cock had just been pressed, there was a _perfect_fit for his muzzle... and Kal's tailhole still bore the warm stickiness of the pre, when Nix touched his lips to the ridged flesh.

Still his heart beat in his chest, still he squeezed Kal's length as he stroked him so as not to show the shaking of his paws, still he felt the thrumming, almost-sickening guilt in the pit of his stomach and in the back of his mind. But, even with all of that, he couldn't help himself, and - he flicked his tongue out against the center of that tailhole, drew it around the rim, swirled it back and forth, back and forth over the warm flesh, swallowed down the vaguely sour taste of Kal's musk.

This was right. They both wanted it: Nix had known this much in himself for quite a while, and now Kal showed his willingness in continued pressing back against his brother's muzzle and lips, slight clenches against and around the firm tip of his tongue as he dug it up into him. With his nose shoved up underneath the base of the younger otter's wide rudder and one paw still working along his length, all of Nix's senses suddenly became flooded with Kal: scent, taste, the heat of his body... everything he'd wanted for so long, finally come to realization.

That guilt started to abate and melt into a heavier, hotter lust and desire the more Nix churned his chin against Kal's rear, digging his tongue into his tailhole - his tightness showed to him that he definitely hadn't had something like this done before; already the older brother could feel the somewhat-familiar soreness start to pulse in his jaw - and keeping his rump spread with his other paw. Between tense breaths and gentle moans, Kal reached back, dug his fingers against the back of Nix's head, and tugged him forward, burying his muzzle only more firmly up against him as he worked with his tongue, the younger otter at the same time continuing with the steady forward-and-back movement of his hips. Into a paw, back against wet lips and tongue; into a paw again, back against that tongue again.

Nix had to start catching his breath between his parted lips, each time he moved back to drag the flat of his tongue up along Kal's tailhole again. Hot slickness coated his tongue, his mouth, the fur of his chin, the skin of his nose, and yet still he went on, testing just how far he could dig his tongue into that tight ring of flesh. Each time he did, Kal tensed up and pulled in a little gasp of breath, to then be released once he drew his tongue out again, but - the younger otter made no sign of wanting him to stop.

Instead, he showed quite the opposite, at one point bending forward where he lay to shove his rump back against Nix's face. At this angle he couldn't continue pawing him off, so instead he brought that thumb back to spread Kal even wider, and to allow himself to get a better look, a better opportunity, a better taste in ensuring that tight rump became slick and dripped with his saliva. Of course there was more he wanted to do, but this... this in itself made up a good portion of what Nix thought about, when alone in his bed some nights.

The older brother swallowed down that slickness again, and wiped the back of his paw across his mouth before returning it to its place. This time, he reached his thumb further in, touched it against the thoroughly-moistened skin, felt the slight twitch in response.

"You doing okay?" he drawled, warm breath washing out over that same sensitive flesh. Then without waiting for an answer, he moved in again, pursed his lips against Kal's tailhole, and worked the surface of his tongue back and forth against the center without trying to push in again.

Kal had trouble with his response: "Ah - y-yeah, that's - God, Nix, you're..."

He half-opened his eyes, thick rudder across his head obscuring most of his vision. "Mm?"

"That feels... mmf..."

That was a good sign, if anything. This time when Nix shifted his position, he did so by sliding his paw down his legs to pull his boxers just far enough down to bring his drooling length out into the air, the blankets of the bed long since tossed to the side; then, with a pair of deep, wet kisses to his brother's tailhole again, he straightened up, wiped his mouth again, rolled Kal over onto his belly, and then got over him, leaning down until he could feel that intense heat and slickness slide along the underside of his length again.

Beneath him, Kal pressed his fingers against the pillow above and turned his head to look over his shoulder. Brief lightning from outside the window light up his body and eyes, the same rich green and steel-blue; this time, the thunder did made him jump, but as he did so he also lifted his rump back up and against the hard cock settled underneath his tail. Nix rested a paw on the curve of his little brother's hip, gently churning his hips forward and back and spreading his own saliva along his underside. That would make things a lot easier.

"Listen," Nix breathed, leaning down close to Kal's ear. The younger otter let his eyes drift shut again. "I'm gonna go slow, but you let me know if I need to stop, okay? I don't want to hurt you."

At first, no response. With a slight adjustment of his position, Nix angled the head of his cock down against Kal's tight tailhole, and kept it there for a moment just to feel the heat of his body, the impending pressure of that flesh squeezing around him, the firm clenches of muscle in response to each little push forward. This would be a serious test of his patience and self-control. His fingers tightened on Kal's hips, he licked his lips and swallowed, he started to lower himself down-

"Nix...?"

-and he stopped. Kal remained in place, squeezed between his brother and the bed underneath him. "Yeah? You okay?"

"I never... never really thought..." The younger otter folded one of his arms underneath his head, and moved his other down to lift his lower body up against Nix. "-that _you'd_be my first."

There was no reluctance in that voice. Nix swallowed again.

"Are you sure you wanna do this, Kal?"

This time, there was no hesitation: "Please. I want it."

That he could definitely do. He had to keep a good grip on Kal's hip, but slowly, carefully, Nix started to press down into him, pushing a very short distance before pulling back, again, again. Thank God for the persistent slickness of his saliva, too, or else this would be _much_harder. Nix held his breath as he sank slowly in, the roughness of Kal's tailhole squeezing and clenching around him as he went - hell, he was so tight that it was almost painful for him, but... the younger brother seemed to be handling it just fine.

Teeth gritted, eyes squeezed shut, claws digging into the pillow and mattress, but still Kal pushed right back against Nix the deeper he pushed into him, the moist heat of his rump sliding steadily up along his length. The drumming of the rain against the window forced him to keep his ears perked, for the possibility of footsteps in the hallway, but even with this worry Nix still found himself - of course - focusing on little more than what was going on right here. Himself and his brother, just as he'd wanted since he first started feeling this type of want.

Underneath him, Kal continued to squirm and pant, his cute little noises coming in rhythm with the movements of his body. Again and again he tensed up and gripped at the mattress, Nix able to feel the tightening of his muscles against his continual sinking in... and then he'd relax, allowing him to pull back out with more ease.

Nix always kept an eye partially open and on his brother's muzzle, always had his ears pointed forward in case he told him to stop, but nothing ever came. Kal's breathing picked up and his moans became more and more frequent, not quite loud enough to be fully heard over the pounding rain, but... well. They were getting there. On top of the hot, growing pleasure in his abdomen from repeatedly sliding in, remaining buried beneath Kal's tail for a few seconds, and then tugging back out, Nix could also feel this different kind of pleasure, a warm, more relaxed sort of... enjoyment, perhaps, from knowing that what he'd wanted to for so long hadn't actually been so unattainable.

Then, something that startled him a little bit - a single word breathed through clenched teeth, and not the one he'd expected to hear over the rain and the rustling of the blankets:

"Harder-"

Along the way, Kal had steadily lifted his rear up into the air, forcing Nix to bend over him and mount him from behind with his chest resting against the younger otter's back and his chin on his shoulder. Nix opened both eyes and glanced to the side - but Kal had his closed, his mouth hanging lazily open with what looked like a strand of drool hanging off the fur of his chin. His smaller body lurched forward and back, forward and back with each thrust, still gentle, but nonetheless faster than when the two had just started.

"Harder?" he panted in response. One paw still braced against the bed underneath them, Nix settled his other on Kal's thigh, partially spreading him like before.

His little brother swallowed, let out another breathy moan, and nodded. "Feels good. Feels - _dang_good..."

So Nix adjusted his position, straightened up a little bit higher, and - upped the force he put behind his thrusts, the first one catching Kal off-guard enough to squeeze a little "ah-!" out of him. Because of his brother's smaller size, this position was the easiest for Nix: he could regulate his speed, could lean his weight down onto him and use that to his advantage and drive himself in further, could set his teeth against Kal's shoulder to keep from moaning too loudly... he didn't even notice the thunder and rain anymore. Neither of them did. Every time the lightning flashed, it just illuminated the room, and nothing more.

A little bit faster, a little bit harder - just a little bit more with each thrust. All of the heat, and pressure, and squeezing around his cock; Kal's unsteady breathing and gasping and moaning, the tightening of his body underneath Nix as he repeatedly thrust into him... the older brother moved his paw up and wrapped one arm around Kal's chest, holding him to him, feeling his pounding heartbeat in his chest. After a while, Kal brought his own paw up and settled it on Nix's, fingers intertwining as much as they could with their webbing in between.

Without warning, Kal lowered his head back down to the pillow, briefly interrupting Nix's rhythm, but - kept his mouth open for each pant and moan, and worked his other paw down between his legs to pick up where Nix had left off in pawing him off. This turned him on more than anything else: hearing Kal's noises of pleasure, smelling his musk on the air on top of his own, seeing and feeling him underneath him as he pounded into him, knowing that this was Kal, his own little brother, who he'd thought about for so long - it all just brought the hot peak of his orgasm closer that much faster.

"Ah-" he managed, "Kal..." but little more. He just couldn't form the words.

Rhythmic _tp, tp, tp_of his hips against the younger otter's rump, his rudder pressed against his lower belly and moving a little bit with each thrust; each of them panting, and swallowing, and letting out little shuddering moans; the squeaking of the mattress springs, the thumping of the bed against the wall, the continued noise of the rain and occasional rumble of thunder. Nix dug his claws into Kal's hips as he fucked him, able to feel how close the smaller otter was in how tightly he clenched around him, and how he pushed forcefully back against his hips every time he thrust in. Then:

"-Ah - Nix, I'm gonna-"

Just like before, he couldn't finish. Next thing he knew, Kal was grinding back into his brother's lap, burying him as deep as he could under his tail - and it was his tight clenching and squirming that pushed the older brother over the edge as well, forcing him to straighten upright and drag his claws perhaps a little too roughly along Kal's hips.

Kal squeezed out another tense, breathy moan with each spurt, hitting the bed underneath them with enough force to be audible underneath the rain; Nix, however, just gritted his teeth and swallowed down his noises, though the feeling of finally getting to unload some six-odd inches inside his brother gave him a pleasure more powerful than - again - anything else. Out of rhythm with Kal's throbs, Nix felt each spurt of his own load, hot and hard and leaving him drained, in more than one way.

Even afterwards, with both of them slumped over and panting openly, he didn't pull out. If he'd thought the heat of Kal's body and rump to be damn pleasant before... now, he couldn't tell whose pulse it was that he could feel, rhythmically throbbing along the side of his cock. Beneath him, Kal swallowed again, and squirmed a little.

The younger otter's voice shook as he spoke. Between his words, his lips kept the same contented smile. "You're not... not gonna go back to your own room tonight, are you?"

Finally, Nix found the energy to dismount - though the slick sensation of doing so pulled yet another low sigh out of him - and then flopped down onto the mattress, Kal with his rump still hiked up into the air beside him. The younger otter turned his head to the other side to look his brother in the eyes.

"No," he said, the sweet, contented post-sex warmth flowing through his body. "I'm not."

Within a few more moments, Kal had settled back down as well, and draped his arm across Nix's chest with his muzzle on his shoulder. Every exhalation of breath, still heavy with exertion, tickled at his chestfur. Nix wiped the back of his paw across his forehead. He could still pick up Kal's scent in the fur of his muzzle.

He still had trouble catching his breath. "Tomorrow's... what, Saturday?"

"Mhmm."

"So Mom and Dad aren't gonna be awake until late morning..."

Slight repositioning. Both of them had their underwear still halfway down their legs, too lazy and tired to pull them back up. "Mhmm..."

"Do you maybe wanna - I don't know... run up to the pool again tomorrow?"

"Yeah..." And Kal nuzzled a little closer to his brother. "Yeah, that sounds nice..."

It took some time to get to sleep what with the storm still going - now that he had nothing else distracting on him, Kal jumped at each rumble of thunder, though less than he had earlier in the night - but gradually the noise started to fade, and Nix was again dozing off. Then, brief flashes of some pleasant dream, leaving him with a half-formed memory of something that he couldn't quite recall... and soft grey light coming in through the spaces between the window blinds stirred him awake.

Each of the brothers were a bit drowsy and sluggish on their way out of bed and into their swim trunks, but Kal still responded affirmatively when asked again if he wanted to go swimming. Nix stumbled down the hallway, drawled into the threshold of their parents' door "hey, we're goin' to the pool this morning", and then passed by Kal on his way back down the hallway-

-who took his wrist in his paw and smiled up at him for a second and a half, before a yawn interrupted that smile.

At this time of morning, especially on a Saturday when most people would rather be sleeping, the place was almost vacant. The two brothers swam back and forth, back and forth alongside one another for a while, Nix giving advice and tips he could remember from back when he was on the swim team, Kal listening attentively.

That was the strangest thing. In the past, he usually thought that Kal just... thought of him. Didn't think highly of his older brother, didn't think poorly. He just - did. Now, though, a different kind of light glittered in those eyes. Every time Nix looked at him, he had a smile on his face.

Two or three hours, hard to tell with their cell phones in the lockers and no clocks in the main pool area, but by the time the two had had enough, the sun shone through thin wisps of clouds outside the high windows. Even though they said nothing, things still felt better, still felt right. And, besides - this time, Nix didn't have to hide his interest as they were undressing for the showers. Kal actually watched him as they both did so, and he might have licked his lips at the sight of his older brother's cock twitching a little.

Even though they said nothing... going by the look that Kal gave him on the way into the adjoining shower room, they didn't have to say anything. Nix pulled in a slow breath, held it for a few seconds, let it out, and then followed.