“Collleeennn…” came a soft, hushed voice. Her eyes tried to open yet couldn’t manage it - they were too heavy, too tired… but something was touching her, squeezing her, moving her back and forth. A soft groan escaped from her maw as she was unjustly pulled out from the land of sleep… by her brother, Padraig. That much she knew.

“Collleeeennnnn,  wake uuuppp~” came his voice again, whispering in her ears. He knew she was awake of course, he was just playing with her. She groaned again, a little louder, trying to shut him out - shut the world out. But unfortunately for her, energy was flowing into her muscles again, pulling her further and further out from her slumber.

“Ugh… you asshole… let me sleeeepppp…” she whined, doing her very best to lift up a paw and bat his muzzle away. She wasn’t all that successful of course, but that had never been in any doubt. Padraig just giggled, running his paws over her muzzle before dipping them under the covers to fondle her chest a little…

“It’s a special day today, Colleen. Remember? Someone isn’t 11 anymore…” he told her, tilting his head happily as the words began taking an effect on her. With a sudden burst of energy, she sat up and stared him in the eyes - sleep rapidly being thrown off.

“Oh SHIT.” She called out, causing another giggle to erupt from Padraig - “Careful young lady, don’t develop a potty mouth now!” he teased, earning himself a quick pillow to the face. Colleen did her best to stretch, gasping in delight as she did so - before flinging off the bed cover, exposing her naked body to her older brother, who quickly grasped her hips with his paws.

“Nuh uh, birthday girl. This is your special day, allow me~” he told her, scooping her up and planting his paw on her plump ass - before sitting her down on the end of the bed and picking up some clothes from her wardrobe. He took his time holding up some cute panties and bra’s, and some ultra-tiny skirts. Those were his absolute favourites, and Colleen knew it - plus, the tent he was sporting in his shorts gave all the information she needed.

Eventually, he picked out a cute outfit for her… which consisted of just a little skirt, and a tight t-shirt with a few words emblazoned onto it: “Brother’s Love Toy”. Very fitting of course, and she was already well acquainted with the garment of her own choice. One key thing was missing from her outfit though - underwear. But that was normal.

“Now Colleen… it’s your special day today, so…” he trailed off with a wink, before hooking his paws onto the bottom of his shirt and yanking it up in a swift, fluid motion. He discarded it, letting her look at his fluffy chest and tummy - before with a soft lick of his lips, he grasped the hemline of his shorts… and slid them down. Slowly. Teasingly.

Colleen knew every tiny atom of his cock, of course. But no matter what, she still always felt excited to see it revealed - especially with such a skillful tease like this. With a sudden tug, Padraigs fat, knotted cock was pulled into view - drooling and oozing precum down his length with a few extra drops happily falling onto the floor below. She took in a deep breath through her nose and enjoyed that lavish musky scent…

“For your birthday, I won’t wear a thing! I hope you enjoy, Colleen~” he teased her, moving closer - his cock bobbing in the open air as it came into grabbing distance, a fact she quickly took advantage of. Her paw reaches out to slowly stroke his shaft, feeling it pulsate and twitch in her grasp… fuck, it was such a tantalizing treat!

“But that’s not all. I have another surprise… you ready~?” he called out, gently pushing her backwards with a paw, causing her to lay on her back whilst he clambered on top. His cock pressed between her thighs and pulsated against her exposed pussy up her cute little skirt, whilst his muzzle softly smooched her…

“For today, I’ll follow any command you give me. Within reason of course… but I know you wouldn’t ask for anything dangerous! So… what does her highness order first today?” he finished the question with a big warm smooch, softly pressing his hips forward into her - cocktip sliding home as it should.

Once their kiss broke, Padraig already knew what she was going to ask first. He could see it in her eyes, written all over her pretty little face. His knowing smirk told her he knew the answer… but still, she leaned up to his ears and whispered it delicately:

“Fuck me, Padraig.”

He didn’t waste a second.

Grabbing her thighs, he parted her legs and pushed his cock deeper inside of her whilst leveraging his weight and position to mating press her in an instant. Colleen could take a rough fuck any time of day, so he didn’t bother easing her in - instead, his hips began happily slamming into her nice and hard. The bed below creaked in rhythm as he made love to his little sister, those fat cum-orbs slapping against her as his length slid back and forth inside of her tight love tunnel.

Colleen did her best to keep the noise to a minimum… which lasted all of a few seconds. She never could resist her perfect big brother after all, her arms and legs flinging around him and holding him tight as he fucked her properly - mating with her, breeding with her. Like a good big brother does. His cock filled her entirely, body and soul. It made her feel complete - made her feel happy. Her little squeaks and moans only served to vent her feelings straight into his ears - that, and the way her cunt squeezed down on his invading shaft in pure ecstasy, desperately trying to milk out his love.

Of course he couldn’t resist that.

He never could, really. Padraig had great stamina for any girl… that wasn’t his sister. Something about her really just broke down his resolve, his balls straining to release their virile load deep into her snatch. So, that’s what he did - pressing forward hard as his tail looped around hers, his fangs sinking softly into her neck so not to hurt her… whilst his orgasm crashed through his body, sending his nerves alight with pleasure. Cum erupted from his cocktip and rapidly swarmed her womb, waves after waves splattering inside of her and quickly filling the space inside - leaking out of her love tunnel all over her bed. Oh well, they could always wash the sheets later…

But for now, the pair simply embraced as their orgasms waned - Padraig breathing heavily into Colleens neck fluff, as she clung to him tightly - her legs firmly locked around his waist, with no way for him to pull out. Every drop of his fertile seed was forced to go exactly where it belongs - into her womb. Of course she wasn’t on any birth control… such things were absolutely terrible, after all!

“Happy birthday Colleen…” Padraig whispered in her fluffy ears, softly petting the top of her head and cradling her in his arms. She loved his after-sex affection… it was always so adorable. She pressed her lips against his, eyes locked together and she kissed him again - “I love you, Paddy~”

A cute, though silly nickname - one that he was embarrassed by still… but she got away with it. She was, after all, his beloved little sister~

“Alright. School time. We have a surprise for you, Colleen… bet you can’t guess it!” he teased, setting her head alight with ideas. Of course, she wasn’t actually meant to guess the surprise… else, it wouldn’t be a surprise! However, Colleen certainly did her best to think hard about it.

Padraig led her out of her bedroom and let her chow down on a nice warm breakfast he’d made - bacon and sausages. Incredibly tasty, and with a warm loving smooch on the top of her head causing Colleen to break out in a bashful smile. Paddy was such a wonderful brother-boyfriend…

He glanced at his watch as Colleen finished up, washing the dish whilst she scrolled her phone for a few minutes - then, he grasped her hips and lifted her up! His cock just so happened to rub quite a lot against her cute, squishy ass - but that was totally natural after all… not that Colleen would ever care anyway! Plus, right now, she’s too busy thinking about what could possibly be waiting for her at school as a birthday surprise.

Padraig set her down outside their home, and he grasped her hand - wandering along the pavement to the school. It was a warm sunny day, and a gentle breeze brushed past Colleen's fur - and Padraigs still mostly hard cock.

His cock. Fully visible.

“Padraig! You didn’t put on any clothes today!” Colleen suddenly yelped out, eyes focusing fully on his exposed cock - which bobbed and throbbed a little under her obvious gaze. Padraig let out a soft chuckle, rubbing the top of her head playfully. “Wow, Colleen - that took you way too long to notice. Is the sight of my sister loving cock so natural to you now~?” he teased, moving closer and softly slapping his cock against her belly.

Colleen giggled slightly too, as it was true after all. Her brother's cock was such a natural part of her environment that she had completely missed the fact he hadn’t put on any clothes today (barring some socks and shoes). She’d been so wrapped up trying to figure out her birthday surprise too, it just… hadn’t come across her mind yet.

“Is this for my birthday, Paddy? So I can have a complete full-view of you all day~? You’re so kind to me…” she teased, grasping his shaft and giving it a few quick pumps as they arrived at the school gates. Her attention shifted upwards to the school - before she let out a loud gasp!

Every single student was naked! Girls and boys mingling everywhere - most of the boys with drooling erections as they hungrily devoured the sight of the naked girls… but not a single piece of clothing in sight! Colleen struggled to think of the how… and especially the why! After a few seconds of standing there in shock - she understood. She realized. Turning towards Padraig, who had a totally not suspicious smirk on his face…

“Paddy… you didn’t-...” She couldn’t even figure out how to get the words out. He leaned down and gave her a quick smooch on the forehead, before dropping another sudden surprise: “Guess what, Colleen? I’ll follow your every order today… within reason. But - every… single… order! How about that, hm? You’re such a lucky girl~” he teased, gently pulling her closer - his cock pressed against her.

Colleen could hardly believe her ears. Her Paddy, always so dominant and powerful… well, usually, but complete putty in her paws for the day? She was practically vibrating in excitement as her mind began racing with thoughts and ideas. Casting her gaze around all the naked cubs in the school ground, whilst Padraig led her in and held her paw.

“Uhm, uhhm…” she stammered, as all the possibilities began clashing together all at once. “Uhh- go kiss the wall!” she pointed it out, immediately regretting it in her head. Padraig looked at her with a funny expression. “That’s seriously your first command, Colleen~?” he asked, giving her enough of a get out of jail free card.

“No! Cancel that! Sorry I’m just-... this is so exciting, Paddy!” she exclaimed, jittering about on her footpaws. The sheer magnitude of possibility was overwhelming - but she had to make a decision, and fast. Scanning around, she spotted a cute looking goth-like Cheetah girl with black hair which sported some greenish tinges… who also wore some very nerdy glasses. She couldn’t remember her name, so she just gestured over to her:

“Paddy! That nerdy-goth Cheetah girl! Go pin her to a wall and fuck her!” she commanded, and Padraig sprung into action. He rapidly crossed the gap between him and the cheetah, who wasn’t even aware of her incoming fate. She let out a little gasp as Padraig scooped her up off her footpaws and pressed her against a wall of the school, gripping her legs and pinning them up above her head as he looked her deep in the eyes. She didn’t look scared - just surprised! His cock trembled and dribbled sticky love onto the floor as they made eye contact, before his cockhead began slowly sliding inside of her.

Colleen was treated to the wonderful view of Padraigs large, pulsating erection disappear inside the little Cheetah, and her fingers began wandering down her body towards her suddenly dripping cunt. When had that happened? She wasn’t even aware of the change in her body, not whilst she’d begun watching - oh goodness, look at Padraig go… even in those few seconds of concentration on something else, Padraig had begun his usual rough but loving pace. His fat, heavy balls slapped against the little cheetah with every thrust - droplets of her arousal mixed with his precum splattering against the wall as he slammed into her. Loud slaps echoed around as he made love to her, mixing with her adorable little squeaks!

A crowd had begun to form in order to admire Padraig breed that little cheetah senseless, a mixture of boys and girls - a few of which were getting quite some attention from the horny boys around them. Colleen was very satisfied with that, as she caught the eye of a cute wolf boy - and gestured for him to come closer. Of course, he obeyed. Why wouldn’t he? His large knotted cock swayed in the open air as he moved, and Colleen’s paw reached out to grasp it - softly rubbing her fingertips over his leaking cocktip.

She began gently, but quickly pawing off the wolfboy whilst Paddy began getting closer to orgasm. She could tell - his balls were twitching in need, and his grunts had changed their tone slightly. His pace kept increasing too, hammering the poor little girl to the wall - as she reached her own climax, squealing in delight whilst his cock continued to rail her. No doubt, the sensation of her orgasm would send Paddy-

Oh… there we go. Colleen’s grip tightened on the wolfboys cock as she saw Padraig lurch forward and bury his cock deep inside the cheetah, his balls audibly unloading ropes of fresh, fertile babybatter into the lil’ fertile cheetah! Fat globules of cum dropped onto the ground as her womb exceed capacity, Padraig panting into her ears as he rested his head on hers.

Colleen suddenly felt a warm, sticky sensation against her thighs - as the cock she was jerking off throbbed and bucked in her grasp, the wolfboy reaching his orgasm too. How cute - the look on his face was adorable as his nutsack unloaded onto her. Colleen couldn’t help but smirk, wiping a large amount of cum onto her paw before slowly licking it off, making eye contact the entire time.

“Thanks cutie!” she told him, before giving his knot a big, hard squeeze - causing the wolfboy to squeal in delight and an extra load of cum to shoot out of his cock. Colleen giggled before waddling up to Padraig and gently grasping his hips, pulling slightly. Of course, he pushed them straight back into the cheetah - and Colleen saw with delight his cock throb once more, adding another rope of fresh cum to the batch inside of her. She leaned up to his ears…

“You love impregnating the girls, don’t you Paddy? Can you feel the swarm of your sperm descending onto her defenseless eggs? Can you imagine the moment of impact, thousands of your virile swimmers inseminating her?”

Padraig let out a growl of delight at her words, his balls heaving a little extra for good measure. Colleen giggled softly into his ears and ran her paws over his shoulder, before giving his hips another tug. This time, he managed to keep his cock from slamming back into the little cheetah girl - who’s legs trembled in Padraigs grasp. He gently began to let go, setting her back down on the ground - but keeping hold of her, as she didn’t seem able to stand on her own two paws just yet. He leaned forward and gave her a little smooch on the forehead, as Colleen searched her eyes - orgasm glazed and distant. Just the way she liked it - a proper fucked silly girl.

“Come on, Paddy. You can leave her here to recover. We should get to class~” she murmured, and Padraig released the Cheetah. She stumbled for a moment, but managed to rest against the wall and prevent herself from falling, much to Collen and Padraigs satisfaction. Padraig leaned down to give her a gentle kiss on the head, before Colleen looped her arm around his waist to begin pulling him off.

Colleen’s legs and pussy tingled with delight after watching the show. She felt… powerful. More powerful than usual, really. Sure, Padraig would usually listen to her day to day, but this felt… different. The only issue was, she was so powerful that she didn’t know what to do with it! Her eyes cast around the general mingling of cubs in the school yard, and she rapidly tried to come up with something…

“Padraig! Go spank three girls for me - I wanna hear them squeak!” she ordered, and Padraig simply grinned at her before slowly moving off to the side - grabbing a random wolf cub girl who happened to be within reach. She let out a soft squeak of surprise already, before she squealed in both pain and… some hidden pleasure as Padraigs heavy paw was brought down on her naked ass. She still couldn’t believe that she’d gone along with this - but seeing everyone else naked had helped steel her nerve. But getting publicly spanked, quickly slapping her paws over her muzzle in embarrassment… it left her pussy aching and dripping a little. She’d hoped Padraig would spank her again, but he’d already moved off…

The loud echoing slap of another wobbly cub ass getting Padraig’s treatment was like music to Colleen’s ears - said ears twitching in delight as she heard the tell-tale squeal of pain mixed with surprise. And, of course, pleasure! What girl could resist the wonderful feeling of her ass getting swatted by big strong paws? Paws belonging to Paddy, the best big brother in the whole world, who practiced his spanking on her ass day after day after day-

“There we go, Colleen. Enjoy yourself?” came his warm, loving voice. Colleen was startled out of her little memory world as Padraig sauntered back up to her side. She’d been so focused on her memories, she’d missed the third lucky cub… fuck! Oh well, it couldn’t be helped - plus, Paddy being close to her made her mind melt…

“Yes Paddy, you were such a good boy! Since we don’t share classes… I have an order for you. You gotta fuck five different girls before I see you again after school!! Think you can manage it, stud~?” she challenged him, but her confident exterior was deflated at his scoff and smirk.

“Seriously Colleen? That’s easy peasy and you know it.” he confirmed, giving her a little rub on the head. “Fine!” she burst out, rising to the challenge - “20! How about that, huh?! You can’t manage 20, I’m sure of it! Your balls will be empty!” she felt a little surge of competitive anger at his blasé attitude. Much to her satisfaction, she was sure that she caught a quick flutter of worry across his eyes.

“20 huh? That’s… uh, doable.” he nodded, though clearly didn’t exactly sound all that confident anymore. Colleen's eyes blazed brightly with triumph as the school bell rung, and Paddy gave her a gentle smooch on the head. She was pretty certain Padraig couldn’t manage it… and although he hadn’t yet given any sort of indication about it, she was pretty sure she could leverage his failure in her favour.

But time would tell what would happen! For now, she had to head to classes… ugh.

Unfortunately, despite all the student body going naked, the teachers hadn’t joined in. Though her math teacher did tell her that it wasn’t due to a lack of interest. “I’m pretty sure most of us would have joined in, Colleen. We all really like you, after all.”

Of course he’d say that with Colleen’s maw wrapped around his cock, massaging his oversized middle-aged balls. Getting a blowie from your student would always bring out the compliments, however at least he sounded genuine. Alright, Colleen knew he was genuine - when she got her mouth around a cock, there was no way it’s owner would lie to her…

“The main thing is that… well, the administration put a stop to it citing all sorts of laws and stuff. It was out of our paws unfortunately…” he continued, before letting out an adorable little manly moan as his orgasm hit and Colleen was treated to a wonderful, nutritious pre-lunch snack. She gulped it down like a good girl, fondling and squeezing those fuzzy orbs to milk out as much as possible, before slowly letting his cock escape her maw. She stood up and leaned close to him, licking the cum off her lips as she did so - noting how he stared, and enjoyed.

“For my birthday next year, I want a new school administration that won’t put the brakes on your fun.” She told him, with a surprising amount of force in her voice. The teacher was clearly startled by it, as was Colleen herself however she did her best not to let that on.

“Well, I-.. I don’t really get a choice personally, Colleen…” he began to explain, rightfully so - but Colleen wanted to do her best to keep this ball rolling, now that she’d pulled such a powerful request out of seemingly nowhere. Perhaps turning 12 had given her some extra older-cub powers?

“Talk to the other staff and get it done. Else this cock?” she gripped his fat, still-erect shaft and gave it a few extra pumps. “Gets nothing. Absolutely nothing. Understand?” she leant closer, letting her gaze fill his vision. Her teacher nodded with a soft gulp, cock trembling in delight in her paws. Of course, a horny perverted student loving teacher would do anything to keep his access to young cubs…

“Good! Now, I need to have lunch~” she whispered, giving him a little smooch on the cheek before making her way to the lunch hall. She knew he was staring at her ass as she walked off, so naturally she made sure to swing her hips and satisfy his attention.

The lunch hall was of course overfilled with hungry cubs waiting for their meals - though this time, minus their uniforms. And underwear. Colleen couldn’t help but retain a satisfied smile on her muzzle as she gazed about at everyone - noting something interesting, too. Usually, everyone was either sat down on the tables eating, or in the line waiting to be served. Said line would stretch around the entire room as cubs waited patiently to grab their food.

But this time, the line wasn’t so long. Mainly because the line was almost void of girls - the reason being because most of them were underneath the tables, gulping down fresh helpings of nutritious cum! Colleen was amazed at the display - all throughout the room, boys had pleasure written over their faces whilst their cocks were skillfully milked and balls drained. She couldn’t figure out why, though. Why now, why today? Was it simply because everyone was naked that a majority of the student base had decided that sucking down tasty cum was better than waiting in the food line?

To be honest, Colleen could easily agree with that assertion. Gulping down cum WAS better than waiting in the line. So much so that her eyes were scanning for an unattended boy - finding one was a lot harder than she originally thought. Boys for once didn’t out-match girls here… meaning there were less cocks to milk. Eventually, another class entered the food hall and sat down - most of them looking around in surprise. Colleen took this moment to pounce on the closest boy, a hyena - scurrying under the desk and dropping his pants.

The hyena hadn’t had a single moment to process anything before his cock was suddenly stuffed into a tight, wet maw - and Colleen began once more skillfully asserting her dominance in the throat-goat game. The hyena almost immediately began to moan in delight as pleasure assaulted him from all sides, his paws rubbing over Colleen's head, much to her surprised delight.

It didn’t take long for him to bust, copious amounts of warm spunk splattering down her throat as she gulped it all down like the good girl she was. Gulp, gulp, gulp… down the hatch it went, leaving her feeling warm and filled. Licking her lips, she gently pushed herself up his lap to give him a loving little kiss. Aww. How cute.

Colleen spent the lunch hour revolving around any boys she could find with unsucked cocks - unfortunately, not that many… but that meant she could stay on one boy for longer, perhaps milk a second or third load out of him. Her stomach was full of tasty ball spunk by the time the bell rang, and she couldn’t stop herself from letting out a little cum burp either. Giggling to herself, she happily waddled back to class (ugh!) for the last few lessons… her paws seeking out her desk-neighbours cocks to happily jerk them off the whole time too. She loved the feeling of power that filled her whilst she jerked off those throbbing knotted cocks… knowing that she’s doing that, she’s making these boys lose focus on the lesson.

Not that they were focused on it in the first place… but still, it’s the thought that counts!

After all the lessons had finally ended, Colleen was eagerly seeking out Padraig - knowing full well he’d have failed her challenge. Paws fondled and slapped her ass as she waited - before her eyes sought out the one face amongst the crowd that she would never be able to miss. Donning a cute little innocent smile, she wriggled her away over to him and grabbed hold of his cock - still hard, but not fully erect. His cock was slick with juices…
“Soooo Paddy, how’d your day go~?” She gently teased him, sliding her paw back and forth on his cock, fingers rubbing over his sensitive tip. Oh to feel his man meat tremble in her grasp, hearing his gasp slightly and bite his lip - he’s so fucking cute! So utterly overwhelmingly adorable beyond words!

…

ESPECIALLY when he’s lost a challenge! Hah! There’s no way he could have managed it~

“How’s my favourite little pet sister?” he fired back, paw coming up to pet her head gently, pulling her closer by the neck - and smooching her forehead. Colleen shivered in happiness, but didn’t lose sight of what she wanted…

“Don’t dodge the question Paddy! How’d your day goooo~?” she drew out the last word and hung on to him, looking up with those big cute eyes of hers. Padraig looked back, seemingly confused - before it clicked. His eyes shifted ever so slightly, and his paw rubbed her fluffy ears idly.

“Ah”. Was all he could say at first. His cock dribbled a little extra love onto Colleen’s paw, but she squeezed down a little which drew out another gasp of delight from Padraig. He shifted gently on his paws for a moment before clearing his throat.

“Ah, I see what you were… asking now. Well Colleen, I’ll be very happy to tell you I… uh… fucked 18 girls today. That’s close enough, righ-”

“HAH!” She cut him off with a big laugh, using both her paws to clamp down on his knot and squeeze hard - drawing out a surprised, pleasurable groan from Padraig as he almost fell over with the sudden pleasure shock. Colleen pumped his cock gently in her grasp as she steadied him, laughing away at him with delight.

She knew it! She knew he’d fail! And that means-

“That means you failed your birthday promise Padraig! So… that means your servitude is hereby extended! For a whole week! You’re MINE to command for the rest of the week, understand?” she happily trilled, filled with so much joy she could just skip around him like a cute little brat. Padraig only grinned at her, looping his arms around her waist to keep her still as he leaned in close.

“God Colleen, you are the cutest little girl this world could ever produce. Sure, I’m yours for the week. That makes you happy, hm~?” he asked, which very quickly received a squeaky shout of “YES!”

“Good~! I’m glad to hear it~” he whispered, before scooping her up in his paws and beginning to carry her home. Colleen giggled and smooched the bottom of his chin, before her voice dropped a little…

“Thank you for such a lovely birthday, Paddy…” she told him, causing him to stop for a moment and look down at her.

“Anything for you, Colleen. Love you~”

With that, the two kissed - properly. Lovingly. For quite a few minutes.

After that, they headed home to enjoy each other for the night.