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"Hey, you don't mind if I sleep with you, right hyung?" Felix whispered as he shut the door behind him, his bushy tail swaying gently.
Felix loved Chan's room. Whenever they were laying together like this, they could peer out the window and watch the world pass by outside; the faint splatter of moonlight through the glass lit up the room, and there was no need to switch the cold, harsh lights on to be able to catch each other’s glances. The two would drift off, wrapped in each other's heat as if they were the last two people on Earth.
And Chan wishes they could stay like that forever. After all, was there anything about Felix that wasn’t just perfect? Chan wished he could just sit there all day and press a kiss to every single one of his freckles and listen on repeat to his shy giggling. Seeing his beaming smile shine in competition with the sun while he rambled on about whatever he just saw on Tiktok or the newest patch in some game Chan hadn’t even heard of while his tail wagged to and fro; Chan would just listen as if he were taking in the eighth wonder of the world; his Felix, his dork of a little brother who he had the horrible luck of falling head-over-heels for.
Of course Felix wouldn't see what Chan sees in him, though sometimes he wished he did; normal siblings just don't think this way about each other, do they? It was true that Felix never seemed to see the way Chan would stare at him when he got lost in thought or when their eyes met when he spoke, but Felix didn't have to know. He was too oblivious for that, not to mention he'd probably find it gross.
Normal siblings don't get off thinking about each other either. It... was a slight of judgement, a moment Chan definitely wasn't proud of during a particularly bad rut.
"Something up, bro? You're so red." Chan hadn't even noticed how flushed his face was, beet red at the idea of being so close to his little brother.
"N-no! It's fine!" His voice came out higher pitched than he had wanted, and he immediately wanted to sink into the floor. Felix raised an eyebrow, his eyes narrowing suspiciously. But he still came over to settle beside Chan under the covers, unbearably close to the older.
Even late at night, humidity still hangs thick in the air, so it's not altogether out of the ordinary that Felix finds himself drifting into consciousness with sweat gathering at his temples and at the small of his back, feeling warm at all the parts of him that are not directly facing the fan.
The heat is different tonight, though. It starts small, beginning right at his chest before it works its way down like a flush, pools deep down in his stomach. It’s not stuffy, either, but an inviting kind of warmth—one that makes him just want to sink deeper into his brother's embrace and his head grow foggy.
With a slow start, Felix can feel his eyelids begin to droop in the haze. A few minutes later, his mind is blank, and his body is lax as well, completely relaxed against his brother.
Felix woke up to a brazen heat curling in his stomach, blood rushing to his groin. He squirms in bed, his pants becoming uncomfortably tight. A thin layer of sweat beads along his eyebrows, his body beginning to tremble all over; his heat couldn’t have hit him that suddenly, right? He looked over to his big brother, clearly in a similar situation. Felix bit his lip as he watched Chan sleeping beside him, sweat coating his muscular body as he rustled every so often.
Why… did he feel so warm?
Felix didn’t even notice the drool running down the side of his mouth, his tail wagging frantically, his eyes wide with hearts in his pupils as he stared down at his sibling in awe; Felix couldn't take his eyes off the older if he tried.
It's wrong, I know it is, but… he just smells so good!
Felix's mouth was downright watering at the sight of his brother, slowly padding closer towards the older boy, the whole time his eyes were scanning over Chan's body. His pale skin shone with a light sheen of sweat, his black locks were messy and mussed with sweat, and his sweatpants hung low on his hip giving Felix a lovely view of his brother’s V-line and the musky smell oozing off him, blaring off that his rut had started. He shouldn't be feeling like this about his brother, yet his stirring hormones could care less about morality. He wanted to touch and stroke Chan till he was hard and leaking, to suck and choke on the thick, to have Chan’s scent dominate his senses. Felix's cunt was soaked at the thought of the older pinning him down and fucking a baby into his cum-thirsty womb.
His big brother's scent. What did he even smell like when his rut settled in? It wouldn't hurt to take a peek, right? Chan slept like a rock anyway; not like he would notice Felix just looking.
“Just a look, just once, no touching…” Felix repeated to himself as he pressed his hand on the waistband of Chan's shorts, his tail wagging frantically in anticipation. His sweat-glazed body was shaking in need, heart beating so loud he was worried it would wake the older up as Felix began to pull down his pants. The younger’s eyes were the size of saucers as more and more of Chan was revealed to him. A soft whine left Felix upon finally getting to once again see his hyung’s cock. He was already glistening with precum, his veiny length pulsing with need, right down to the bulbous knot sitting over top of his balls stuffed to the brim with virile sperm. Just like the rest of his body a thin sheen of sweat lingered on the older male’s cock.
Fuck.
More, he needed more.
The blonde's face was practically glowing red as he leaned in towards Chan's cock. This was going to be much more than just a peek but Felix’s heat-drunk brain couldn’t be bothered to care. He let out a vulgar moan as his tongue made contact with the soft skin of Chan's cock. The blonde pulled away from the older male's member only to immediately shove as much of it as he could in his mouth. Tears were beginning to creep into his eyes, Felix didn't even need to be touched to already be sopping wet with slick at just how filling his brother's dick was. He could barely fit all of Chan in his mouth and his mind was racing with how it would even fit inside of his cunt.
The blonde choked and gagged as he sank his mouth further down his brother's length. The blonde let out an audible gag as the older male's cock struck the back of his throat. He couldn't even fit half of Chan into his mouth without choking. Every time the tip of the older’s cock would bump against the back of his throat it scent a shock of pleasure through Felix's frame and his cunt would ooze even more. It became far too much for him and Felix pulled off Chan's cock with a lewd pop, coughing a bit as he did so. His chin was coated in a blend of his brother's precum and his own saliva. His small hand could hardly fit around the older's girth, only serving to make it look even bigger.
“Fuck...Channie-hyung's dick is so big~♡, I-I can't even take it all! ” Felix was star-struck watching how globs of precum still oozed out of his big brother's slit. The blonde wasted no time in leaning in and wrapping his lips around the flush head, eagerly sucking up the sticky liquid. He swirled his tongue on the tip and dipped his tongue into the slit, desperate for every drop of his fluids; Chan's scent was growing even stronger and it was making Felix's mind go hazier. Fuck, this was so risky, Chan could wake up any second and be struck with the sight of his little brother worshipping his cock; the image he had of Felix as his pure, innocent little brother being washed away to reveal him acting like a braindead bitch in heat.
Felix was so enraptured in his current task he hadn't even noticed Chan rustling out of his sleep, letting out a low groan of pleasure as his hips bucked a bit. He was too busy enjoying his brother's warmth that he failed to catch the telltale signs of waking up. Not even as Chan shifted in bed, Felix kept on planting kisses all over his brother's shaft, giving extra love to his thick knot.
"Mhmm… Felix?" Chan asked groggily, his face beet red and sweaty. Felix immediately snapped back to reality, panic beginning to settle into his core, his heart beating so fast he thought it was going to explode. Chan was so shocked that he couldn't react even if he wanted to; waking up to his younger brother ogling over his cock was the last thing he had expected.
"What are you-"
"Uh- H-hyung… I was just…" Felix stuttered, trying to find the magic words that would somehow cover the guilt of what he'd just done, but all he managed was another strangled squeak; even in the middle of him trying to apologize, he couldn't help but drool over the older's hot shaft, his eyes wide, unable to control his lust anymore. All he knew was that he just had to taste and suck at it, the elder’s thick cock was calling his name.
Chan stared at Felix wide eyed, his mouth hung open slightly as he took his surroundings in; seeing Felix drooling all over his cock as if it were some sort of delicacy, licking and sucking at his cock in the middle of the night, the blonde looked so fucking hot that he felt almost ill.
"Ah, God…" Chan gasped, his hands fisting tightly into the sheets. His face grew hotter, his stomach churning and turning, his virile cock throbbing painfully with the desperation to breed his younger brother.
"You didn't need to stop, though." Chan mumbled, refusing to look Felix in the eye. He reached out for his sibling's hand, pulling him closer. Chan was panting heavily, his heart rate speeding up, practically begging for Felix to continue. He wanted to fuck Felix until he couldn't even remember his own name, thoroughly bred and stuffed full of his kids. His eyes flicked over Felix's body, his chest heaving as he tried to control his breathing, his cock straining.
"Please, please, please…" He pleaded, his tail wagging rapidly now. "It's alright, I swear, Lix please just keep going~♡"
The blonde nodded quickly, reaching for Chan's cock with his mouth. Once he latched onto the tip he could feel his cheeks flush a bright red and he swallowed down his saliva in nervousness, waiting impatiently for the older male's approval in the form of Chan's hand wrapped in his hair before he started to bob his head.
Felix sucked greedily on his brother's cock and felt Chan twitch beneath him, his ears twitching in concert. "Faster…please, Felix~" Chan whined, voice strained; it was the first time Felix had even seen his big brother sound so pathetic, so broken from his rut.
The blonde complied, moving faster, more urgently as he moved down Chan's length; licking and swallowing the salty fluids and saliva, his mouth closing over the swollen head and sucking, feeling a wave of euphoria course throughout his veins at the feeling of his big brother pushing his head down to force more of his length down Felix's throat. Felix felt his throat burn from the assault on his hole, the tightness and stretch of his walls squeezing his airways shut. The blonde whimpered, the way it felt to have his older sibling thrust into his mouth was too much. He couldn't breathe, couldn't swallow as his throat burned with each and every movement. Everything around him blurred until it was nothing but the feeling of Chan's thick length dominating his senses, the sound of his moans filled his ears, the smell of his own cum filling his nostrils; everything he felt was overwhelming, his mind clouding with the thought of his older brother cumming into his throat. Felix felt his vision become blurry as tears threatened to fall from his eyes.
Chan's loud whines were the only warning Felix got as his brother's cock pulsed and flooded his mouth; he gagged as the impossibly thick liquid filled his mouth to the brim. Tears streamed down the blonde's face as he choked on his sibling's cock and cum, gagging pathetically as tried his best to eagerly swallowed up as much of the thick liquid as he could. The older was shooting so much Felix was worried it would begin to ooze out of his nose. The blonde couldn't handle any more of his big brother's cum flooding his esophagus. Felix's face could only be described as a cum dump after the older was finished glazing him. Chan's impossibly thick cum clung to his face like jelly, oozing out of his mouth in slimy, stinking globs that Felix couldn't help but fawn over. The semen caught in his throat was even more overwhelming; chewably thick and packed to the brim with millions of sperm Felix swore he could feel wriggling against his tongue. His throat hurt, his sinuses burned, it felt as if his airways were blocked by the density, but even so, he still savored and worshipped the cream as it overtook his senses entirely. Felix's senses were so heightened from his heat-drunk state, he could feel the distinct sensation of his ovaries fluttering with desperation to be bred.
He loves it how Chan just moves and grabs him as he wants; it's a suprisingly warm and safe feeling.
The older found himself face-level with Felix's cunt, and Chan swears it's one of the most beautiful things he's ever seen; perfectly tight, untouched and soaked with copious amounts of slick that coated his thighs. Chan could just tell this was one of his most dangerous days, the most fertile his little brother was going to get. He takes a deep breath, inhaling the deep scent of musk that's only gotten stronger.
Not wasting any more time, Chan licks a fat strip up Felix's drooling pussy, swallowing the slick that gathers on his tongue like it's the last drops of water for a dying man. The taste is just so potent, so distinctly Felix . The feelings of the flat of his tongue grazing against the younger had his toes curling. Chan continued lapping at him for a bit longer before moving up and sucking Felix's clit in his mouth. Egged on by his little brother's pretty little noises Chan eagerly sucked on the little pink nub, occasionally swirling his tongue on it.
Felix gets a drawn-out whine punched out of him, trying to move his hips to seek friction. He tangles his fingers in Chan's locks, hips rolling up against the older's mouth in little shaky movements. began to grind into his face, tightening his hold on Chan's hair to the point where it was almost painful as he continued to spread his juices all over the other's face. And Chan eagerly accepted everything Felix would give him; he swore he could stay here forever, warm and wet with the musky smell of slick all over his face, plush thighs crushing his head, dragging sweet sounds from his little brother who he'd happily give anything on Earth to; a baby being no exception.
Chan continued to suckle on Felix's clit for a bit before pulling away and starting to once again lick in between his folds. He lightly poked his tongue into the younger's fertile cunt, licking and swirling around the entrance. He then pushed his tongue deep inside of the younger with no warning; Felix's thighs seized up and he squealed as Chan suddenly shoved the entirety of his tongue into him. Chan didn’t even give him a second to adjust, immediately beginning to ravish his fleshy walls with his tongue. A growl vibrated deep from inside Chan and his grip around Felix's plush thighs tightened; he was eager to drink up every drop of Felix's musky slick, his tongue wiggling inside of the younger for any fluid it could pick up.
There was just no end to it.
Felix's cunt was soaked. Swollen, impatient, and leaking profusely with slick. His big brother's mouth just perfectly stirred up his insides; he made his whole lower half feel weak, but it was still delaying what his body was begging for.
"P-please just breed me already, hyung!" He practically screams, tears threatening to roll down his cheeks. "I want a baby so bad... please knock me up." Felix let his baby fever speak for him, whimpering as Chan slowly pulled away from his clit with a small grunt. Who was he to deny his little brother's wish?
Felix whines as Chan shifts him around, trailing his hands down the younger’s dampened skin to take a hold of his thighs to push his legs up so that his knees were pressed up against his chest. Felix's eyes widened to the size of saucers as he saw his big brother lining up the thick head of his cock to his twitching entrance, and it felt as though the air left his lungs once Chan started to push in. It's tight, even with all the slick helping his cock slide in. Felix’s back arches off the ground feeling his sibling push deeper past his virgin walls, stretching his pussy wide open around his thick cock; He already felt so full and Chan wasn’t even fully inside him.
Felix’s mouth hung open as he laid there panting. The delicious slow drag of Chan’s big cock left him speechless and thoughtless. The only thing running through his mind was how absolutely amazing it felt. He could feel every inch and vein stretching him out and it had his whole body shaking and his stomach tightening. A low groan left Chan once he bottomed out in the blonde, his cock pressing right against Felix’s cervix, and he stays still for a bit. Once he deems Felix adjusted enough, he slowly drags himself back out before slamming in again.
"A-Ah hyung~♡!" Felix babbled. Chan growled, wasting no time to began fucking him in a tight mating press. It felt like heaven, hearing his before innocent little brother cry out and moan like a slut and feeling him tighten around him like this. Felix couldn't scream as the rapid thrusts left him continually breathless, it was a struggle just to remain conscious; he was being turned into an orgasmic mess unable to stop cumming, his stomach bulging with his hyung’s cock. Felix cried out so loud it caused his voice to crack. The blonde’s toes curled and his whole body seized up as his orgasm ripped through him. The sensation was so intense Felix thought he would pass out. His walls almost painfully tightened around Chan as the older continued to ravish his insides, milking Felix for every drop he was worth. The position stretched Felix out till it was near painful but fuck, it felt amazing; each stroke made Chan’s cock pound into his cervix and making his cries sound closer to a howl than anything else, which is rather fitting for how animalistic all of this is, fulfilling that deep-seated, primal urge to breed and be bred.
There was no way this was going to go on for longer; it was a miracle Chan even lasted this long. After a particularly forceful downward thrust from the older's cock, Felix felt him pulse wildly inside him. Instinctively, his cervix immediately lowered to suckle on the throbbing cockhead, looking to suck out any impending sperm it could get. The two both moaned loudly as Chan’s cum erupted into Felix’s fertile womb, splattering his sensitive uterine lining with virile cum that had been pent-up for god knows how long. Neither could keep track of how long he had cum for, but with one final thrust, Chan unloaded the last of his potent sperm directly against Felix’s womb. With his balls now fully drained, he finally pulled his cock out - a viscous string of fluids accompanying his flaccid length.
The thick stream of ejuculate dripping out from Felix's cunt was only a fraction compared to what was stuffed in his uterus, making his stomach bloat slightly. Felix could feel it deep within his womb; his big brother’s sperm aggressively penetrating through his desperate ovum and nuzzling into its nucleus possessively. Any apprehension instantly gave way to carnal pleasure shooting through his entire nervous system, forcing loud, pornographic moans out of his mouth, his face stuck trembling in a shameful ahegao; he was thoroughly bred, certainly pregnant with Chan’s children.
Felix hiccups a sob as his hands roam over the bump, pushing against the cum sloshing around inside. He blinks up at Chan, tears sticking to his eyelashes, only adding to his ruined look.
"Channie?" He asks, voice small and broken.
"Hmm? You alright, baby?" Chan replies, stooping down a bit to press a much needed kiss to his little brother's lips; there was just an infinite amount of warmth stored in that boy, and he could never get enough of him.
"I-I think I felt it inside…" Felix stutters after a while, staring up at the older as he lays over him. "Am… am I really going to get pregnant?"
"It's gonna be okay, I promise," Chan coos at him, taking the smaller's hand into his own. "I'll take care of you, I always have, haven't I? You're gonna be a great mother."