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"That was a good session today, you two. I mean it. Now go get some rest. I'll see you both after the weekend."
"Yes, Coach! Thank you very much for today!"
Sumire gratefully bowed in unison with Kasumi towards Coach Hiragichi, resisting the urge to groan from her soreness as they both straightened up a moment later and went on their way.
Competition season was swiftly approaching, and both Yoshizawa siblings were really pushing themselves with their professional gymnastics training, following their mentor's careful instructions. Sumire especially. She was determined to not fall behind her more talented sister, but getting there wasn't exactly a pleasant experience. The younger sibling was struggling just to walk back to the locker rooms alongside Kasumi, feeling aches all over her exhausted body.
Suffice to say, Sumire was grateful to be done with training at last.
"Ugh… Thank goodness we're done for the day…" Sumire uttered, waiting until she was out of earshot of her coach before voicing her complaints. "I'm not sure I could've handled any more backflips back there…"
"Hey, don't sell yourself short, Sumire! Pushing past your limits is how you get better. And something tells me you could've easily gone for another half hour." Kasumi walked up behind her sister, giving Sumire a reassuring pat on the back like she always did.
"Maybe… But I just wish it wasn't so exhausting." Sumire replied, but even if Kasumi's pat on the back lifted her spirits slightly, she still felt uneasy about her performance. That, and how tiring practicing her gymnastics had been. "I swear, my aches have aches right now…" She rolled her shoulders for emphasis.
"I'm sure it's nothing a hot shower can't fix." Kasumi placed her hands on her sister's shoulders, giving them a good rub to help Sumire feel a little better. She was no masseuse, but she did have a firm grip. And after a few good presses, she looked over her little sister's shoulder to see her flashing a grateful smile.
"Yeah, it sure would." Sumire agreed, cracking a small grin as she instinctively leaned back into Kasumi's hands, enjoying the impromptu massage. "A hot shower and a hot meal would make me the happiest girl in the world right now."
"Me too. I could go for two, no, three large bowls of tonkatsu ramen right about now!" Kasumi agreed, admittedly just as worn out and starved as her younger sister. "We're definitely eating our fill today, but for now, a hot sister will have to do~" As they approached the locker room, Kasumi gave her sister a playful tap on the ass. She giggled as her Sumire tried to stifle a squeal before twirling around her sister and making her way into the locker room.
Sumire found herself blushing warmly at Kasumi's love tap as she followed after her more extroverted sibling, but couldn't find it in herself to be mad about her antics. Embarrassing as it was to have her butt caressed, and by her older sister, no less, the youngest Yoshizawa quite liked it. Not just because anything felt better than training at the moment, but more so because it reminded her that Kasumi cared for her in her own special little way. Even if that way was very touchy feely most of the time.
It also certainly helped that over the past few months, their relationship had grown into something more than familial love. Sumire had always been pretty close to Kasumi since their childhood, but after being accidentally walked in on by her older sister while showering and seeing her sibling completely naked, she realized just how beautiful of a woman her sister had grown into. And how much she loved getting naughty with Kasumi, the two of them having let their inhibitions loose on that particular occasion, making out until they started turning into prunes.
Needless to say, Sumire was both cautious and curious to see if Kasumi would pull anything today.
In little time, both Yoshizawa siblings reached their respective lockers, opening them and beginning to shuffle through their contents. While Kasumi helped herself to a well-earned drink from her water bottle, Sumire took the time to undo her matching ponytail, then remove her contacts and replace them with her more comfortable glasses, neatly seating them atop the bridge of her nose. That done, Sumire readied herself to strip off her leotard and go soak her fatigue away in a nice, scalding hot shower.
But before Sumire could even get that far, however, a pair of arms sneakily wrapped around her stomach and squeezed, making the gymnast gasp in surprise.
"Looks like we were practicing so long that we're the only ones here now~" Kasumi whispered in Sumire's ear, her fingers playing with the thin fabric of her sibling's pink leotard. Her voice was low and sultry, and with how close her sister was, Sumire couldn't help but shudder in response. "Just the two of us, with no one to interrupt us~"
Sumire glanced back, meeting Kasumi's teasing gaze. Despite herself, she couldn't resist melting against her dear older sister, feeling her sibling's breasts squish against her sore back muscles. "S-sis, we… We haven't even gotten changed yet…"
"Does it really make a difference?" Kasumi brought her hands up, resting them just beneath her sister's breasts. She gently rubbed at the other redhead's skin through the fabric, smirking as she heard the tiniest of moans escape Sumire's mouth. "These leotards are so thin, you might as well be already naked. I know you can feel everything when you're wearing this~"
"A-ah!" Sumire released a mousey squeak, beginning to squirm in Kasumi's close embrace. Just as her sister surmised, the amount of fabric between them was practically nonexistant, their leotards as defenseless as they were pretty to look at. Sumire came to know this fact quite well, shuddering and blushing in equal measure as Kasumi's perverted hands ghosted across her small, round breasts, feeling her nipples already growing hard and poking against her sibling's palms. "K-Ka… Kasumi, that's… That's really…!"
"Sensitive?" Kasumi rubbed her fingers against her little sister's nipples, eliciting an even louder moan from Sumire. "I gotta say, it's pretty brave of you to go braless in an outfit like this. One dirty little thought and everyone can see just how aroused you are~" She gave her nipples one last flick, stepping away as Sumire attended to her overstimulated nubs. "Especially your big sister~"
"Y-you're not wearing one, either!" Sumire cried, able to feel Kasumi's own nipples poking against her back just before her sibling pulled away. All while a slow burning heat began to build between her shapely legs.
Even with that charge against her, Kasumi only smiled as she walked over to the bench in the middle of the room. She sat down, stretching her back in a way that drew attention to her own round, alluring breasts, nipples poking through the fabric. "Guilty as charged. But what are you going to do about it, sis~?"
At this sexually charged question, Sumire paused, eyes nervously darting back and forth. It wasn't like she was against what Kasumi was proposing. Quite the opposite, really. But getting naughty with her older sister in a public facility wasn't something either of them had ever tried before. And frankly, getting caught smooching Kasumi would have made Sumire want to curl into a ball and die of embarrassment.
Even so…
"…You're sure we're all alone?" Sumire asked, quickly looking left and right so as to confirm it was just the two of them.
"We're all alone, trust me." As if to demonstrate her confidence in that statement, Kasumi pulled down the collar of her light blue leotard, flashing her bare nipple at Sumire. It was lewd and lascivious, and just enough to drive her horny little sister wild as she let go, curves jiggling as her collar snapped back into place.
Sumire swallowed thickly at Kasumi's display, barely noticing the way her thighs started to subtly rub together. Even with her arousal, part of her mind—the rational portion—was telling her that this idea was going to backfire terribly. And yet, with her body aching and in dire need of relaxation, Sumire found that she didn't have the willpower to resist Kasumi's feminine charms.
So, with a shaky breath, Sumire stepped in front of Kasumi, kneeling down until they were level. Then, after one last check to verify that they were truly alone, the younger Yoshizawa wrapped her arms around Kasumi's neck, and before she could talk herself out of it she leaned closer and shyly kissed her sister.
With just that one little kiss, Kasumi felt like a barrier between the two had shattered into a million pieces, to which she grinned happily. Usually, Sumire never dared to return her affections so boldly, often shrinking away and blushing profusely when she got up to her perverted antics. But right now, there was no one to hide from. It was just the two of them, all alone, and Kasumi wasn't about to waste an opportunity to shower her little sister with love, happily kissing Sumire back, the two of them softly moaning as they melted against one another.
"Mmmm… You're a really good kisser, Sumire~" Kasumi moaned into her sister's lips, letting herself lean back on the bench as Sumire laid on top of her, their bodies squishing together. She wrapped her arms around Sumire's waist, taking in this wonderful, forbidden moment between the two of them. "I'd be so jealous if I had to share these lips with anyone else…"
Sumire let out a soft whine, blush persisting. "You're such a pervert, Kasumi…" She muttered. Only a moment or two later, though, and the younger sibling leaned back in, kissing Kasumi again before pulling away, lips curled into a small smile. "But… You always know how to make me feel better about myself. And just… you know… Taking care of me in general."
"Hey, you're my little sister! I couldn't live with myself if your needs weren't being taken care of." Kasumi's smile widened as her sister grinned back, glad to see that Sumire was enjoying this. She knew just how hard Sumire could be on herself, and while she had to be hard on her sometimes to bring out her best performance, Kasumi always tried to make up for it whenever she could. It just so happened that today she could make up for it in a way they would both thoroughly enjoy. "And I do mean all of your needs, including the physical ones~"
"Hehe… Yeah, you've made that pretty clear, I think." Sumire replied, releasing a soft chuckle. She sighed out, heart fluttering as she stared across at a face that nearly matched her own, yet remained so different. "Maybe you could, um… k-keep going, then?" She asked. "I-I'd really like it if you spoiled me some more…"
"I thought you'd never ask." Kasumi pulled herself up so the two of them were sitting upright and face to face, grinning for just a second before repositioning herself with a little acrobatic flair. She ended up behind Kasumi, both hands on her shoulders and her lips tantalizingly close to her ear. "So which part of you aches the most? Your shoulders? Your feet?" She brought one hand down and placed it between Sumire's legs, feeling her sister's breath hitch at the intimate touch. "Or maybe… it's your pussy~?"
"A-all… All of them, honestly…" Sumire managed to say, hips instinctively moving against Kasumi's teasing fingers, her leotard doing absolutely nothing to hinder the contact. "Especially my… my pussy…" She added, glancing back at Kasumi. "It's so wet now because of you…"
Letting her hand trail down a little further, Kasumi could tell exactly what Sumire was talking about. Even through both the leotard and the tiny but functional thong she was wearing underneath, the older Yoshizawa sibling could feel the heat radiating off her sister's burning loins, begging for attention that her sister likely didn't know she needed until only a few minutes ago. Attention that Kasumi was more than willing to provide.
"Am I really turning you on that much already?" Kasumi teasingly prompted, earning a shy nod from Sumire that made her chuckle. "Then I guess there's only one way to fix this~"
Sumire gasped, breaths becoming shallow and shaky as Kasumi's fingertips ghosted across her thinly-covered slit. At this point, the idea of getting caught having sex with her kinky older sister didn't even register in the younger Yoshizawa's mind. All Sumire could think about was Kasumi and how badly she wanted to be ravaged by her sibling, hips gently bucking against her fingers, heat radiating all across her tired but highly aroused body.
"P-please… Please touch me, Kasumi…!" Sumire practically begged, planting a hand atop Kasumi's as she glanced back, unable to look away from her dear sister and her very kissable lips. "I-I want you really badly…!"
Seeing those needy doe-eyes, Kasumi beamed with pleasure. "How could I say no to a face like that? I promise I'm going to make you feel better than anything else you've done when we're through here~"
Kasumi wasted no time sliding her hand under the sheer fabric of Sumire's leotard, pushing aside her underwear so that she could get direct access to her sister's pussy. Sumire was sopping wet already, and Kasumi's fingers slid in all too easily as she held her horny sibling close, ready to make all her aches and pains disappear.
"A-aaah~!" Sumire's reaction was immediate; a deep, needy moan tearing itself from her lips. Waves of intense pleasure spread from her burning snatch to the rest of her body, replacing exhaustion with euphoria. It felt so good having Kasumi's fingers inside of her, gently teasing her pussy, and Sumire instinctively wanted more of her sibling's touch. "K-Kasumi, I… I love this…!" She gasped out. "Your fingers, they… they feel so good…!"
The sweet, sweet moans coming out of Sumire's mouth made Kasumi's heart flutter, only encouraging her to go further with her antics. The older sister slightly adjusted her hand so that her thumb was sitting on her sister's clit, then with a smirk she gently rubbed it, holding on tight to her sister as she cried out in ecstasy. "That's it. There's no need to hold back. Just enjoy yourself and let your big sister take care of you~"
"A-AAHHN~! K-Kasumi…!" Try as she might, Sumire couldn't stop the moans fleeing her lips one after the other. Not that she wished to. Her poor horny brain was being too overloaded with pleasure to care, pelvis needily bucking against Kasumi's nimble, teasing fingers.
And she still wanted more.
Hence why Sumire, in an act of love and lust, proceeded to close the distance between herself and Kasumi, kissing her sister passionately.
Was it a hasty decision? Yes.
Did she regret it? Not a single bit.
There were so many things that Kasumi wanted to say in this moment as Sumire's lips crashed against her own. How she wanted her sister's body and soul. How she never wanted to let her go. How there was no one in the world that could compare to her. She didn't say anything, though. She couldn't. Not with how fiercely her sister was now kissing her, stealing her breath away as Sumire tried to express how much she appreciated her. All Kasumi could do is kiss her in return, and hold her in her bosom as she diligently attended to her folds, fingers pleasuring her sibling's inner walls and clit in equal measure.
Sumire did what she could to reciprocate, kissing Kasumi with reckless abandon, moaning alongside her equally horny sister as they shamelessly made out. Tongue was swiftly introduced to the fray, though which sibling initiated this bold move was unclear. What was clear, however, was the sheer need and joy that both Yoshizawa siblings were experiencing. Sumire especially, with her moans easily eclipsing Kasumi's the deeper her sister's fingers probed, effortlessly hitting all of her sweet spots. This was heaven; it had to be.
For a good while, they continued on like this, their lips barely parting from each other as Kasumi slowly worked her sister towards climax. With every passing second she could feel Sumire's moans growing louder, her hips bucking harder and harder against her diligent fingers in an effort to eke out as much pleasure as possible. Kasumi spared no effort either; every stroke of her fingers lovingly expressed and every kiss more tender than the last, ready to give Sumire the climax she craved.
And lo, that moment finally would finally arrive moments later, with Kasumi's fingers proceeding to pinch Sumire's sensitive clit tightly in an effort to break her spirit.
"A-AAAAAAH~! K-KASUMIIIIII~!" Sumire practically screamed in bliss, head tilting back as she felt her floodgates burst, a torrent of lewd juices splashing against Kasumi's hand. All of her stress seemingly evaporated as she came, not to mention her senses. Everything went blank for a few moments, vision obscured by her own feelings of lust, and it was only after her climax trickled to a still that she returned to reality, panting softly as she leaned back against Kasumi for support.
To say that Kasumi was feeling very aroused was a terrible understatement. Seeing Sumire cum so hard for her was nothing short of beautiful, the dazed expression across her sister's face making her own loins burn with white hot passion. She savored the image for a few seconds longer before slowly withdrawing her fingers from her sister's dripping cunt and pulling away. At least once she was certain Sumire wouldn't fall over. Then, Kasumi gleefully spun her horny sister to the side, and as the cute little redhead met her look with needy confusion, she grinned and put a hand on her shoulder.
"Hey, Sis… Have you ever wanted a girl to eat your pussy out~?" Kasumi asked, smirking with lewd intent.
It took Sumire a good few moments to reply, mainly because her mind was still frazzled with an intense amount of pleasure that lingered even without Kasumi's intimate touch. "W-wha… What kind question is that…?!"
"Heh… Okay, I think that answers my question. Now for another one…" Kasumi's grin widened, and Sumire could see just the slightest glimmer of mischief in her sister's eyes as she gently pressed her legs apart and leaned in towards her. "Do you want me to~?"
Sumire fell silent, aftershocks of pleasure continuing to course through her overstimulated body as she considered Kasumi's proposal. They had fingered one another before, but still had yet to go further than that bit of sexual experimentation. Yet, it only took the younger sibling a few seconds to form a response, trusting her sister completely.
"I-I… I do." Sumire answered, voice low and still very needy.
That was all it took for Kasumi to make up her mind. Wearing a determined grin, she knelt down on the bench between her sister's legs, pulling both leotard and thong aside so that her sister's dripping folds were in full view. The powerful scent of sex filled her nostrils, fueling the fire inside Kasumi and only making the prospect of bringing her sister to orgasm all the more delicious. There was just a hint of embarrassment on Sumire's face, which completely disappeared as Kasumi dug in, burying her legs between her sweet younger sister's peachy thighs.
Sumire had little clue what to expect, having never gone so far with Kasumi before.
Feeling her sibling's tongue against her folds completely changed that.
"A-AAAAAHHN~! OH MY GOD~!" Sumire practically screamed out in bliss, nearly falling off of the bench as her body violently lurched, eyes rolling back. Kasumi had only just begun her cunnilingus, and already she felt the fire between her legs rekindle into a powerful inferno, her sister's tongue leaving a searing trail against her skin as it traveled up and down her sensitive slit.
"Mmmm… You're just as delicious as I imagined~" Kasumi couldn't help herself from digging deep into her sister's cunt, instantly falling in love with the flavor of her sister's juices. Sumire's pussy was happy to satisfy her insatiable hunger, leaking out like a fountain with every flick of Kasumi's tongue. Of course, listening to her sister cry out in ecstasy was quite delightful, too, and all the more motivation to eat her out as voraciously as possible.
Sumire felt like her body was no longer under her control. At least below her neck, anyways, as her vocal cords continued to spew her lewd melody. The younger sister's shapely legs naturally spread wider, giving Kasumi's tongue even more room to work her magical cunnilingus, and it was only due to a combination of Sumire's gymnastics training and firm grip on the bench that kept her from awkwardly falling back onto the floor. It wasn't long before Sumire started pushing her luck even further, smothering Kasumi's face tighter against her crotch while beginning to grope her chest with her free hand, moaning loudly all the while.
Happy to be smothered with pussy, Kasumi's tongue pushed deeper and deeper into her sister's needy folds, giving every last inch of her pussy the loving care it deserved. She even brought a hand into play, gently teasing her sister's clit and stroking her sensitive lower lips for added effect. She would have gone for two hands if it weren't for the fact that everything about eating Sumire out was unbearably hot, forcing Kasumi to spare a hand to attend to the burning fire in her own loins, fingers pushing her leotard aside so she could furiously masturbate.
"Aaah… AAAAAAHHN~! O-oh god…! Oh god oh god oh god~!" Sumire felt like she was in blissful, horny agony, and her body seemed to agree. She could feel her loins rapidly tightening, desperate to achieve orgasm. After all that exhausting training, this was exactly the relief she needed, and Sumire was more than happy to let Kasumi coax her juices out, leaning all the way back so she could vigorously grope her breasts while her sister brought her to orgasm. "Hnggh… H-HA-AAAAAH~! C-CUMMING AGAIN~!"
It only took a few more moments for Sumire to come undone, shrieking in pure delight as her pussy spilled out onto and into Kasumi's waiting lips. She came so hard that Kasumi actually had to catch her breath, overwhelmed by the flood of juices that leaked out of her sister's cunt. Still, she made her best effort to lap up every drop of Sumire's precious cum, not wanting to waste a drop of her sweet nectar or stop fingering herself to the entire ordeal.
"Ngh… That's…That's so hot, Sumire…! I-I'm… gonna… AAAAAAHHN~!" A few moments later, Kasumi cried out in blissful agony, her pussy erupting and spraying a powerful stream of juices against her hand.
Somehow, Sumire found herself panting harder than she had at practice, partially falling off the bench, her back gently hitting the floor while her legs hung onto her seat. She didn't even notice Kasumi come undone soon afterwards, too distracted by her own sense of euphoria to pay too much attention to her sister's orgasm. It took several lengthy seconds before Sumire's head finally stopped swimming, at which point her eyes slowly pried open.
"O-ooooh… Oh, wow…" Sumire dreamily uttered, once again feeling as though she had ascended to lesbian heaven. "I-I… I didn't… I never knew cunnilingus could f-feel so good…!"
"Hehe… Well… Now you do." Kasumi giggled, panting as she slowly stood up, the crotch of her leotard completely soaked and outlining the shape of her pussy lips. Was she not wearing any kind of underwear beneath it? It certainly didn't look like it to Sumire. "Actually, I wouldn't know, either. No one's ever actually eaten me out before, and I'm not quite flexible enough to do it myself."
Sumire couldn't help but playfully roll her eyes, giggling softly. "Why do I get the feeling that you'd still try, sis?"
"Because I would if I could." Kasumi chuckled as she stepped between Sumire's still spread legs, leaning down and draping her arms over Sumire's shoulders as she smiled at her sister-slash-lover. "Although… I do have an incredibly flexible world-class gymnast who might be able to help with that problem~"
"Y-you… want me to eat you out now?" Sumire repeated, face flushing with color as she averted her gaze. "I-I'm not sure I'll be any good at it…" She nervously uttered. "Especially compared to you…"
"Hey, you have almost as much experience as me, dummy." Kasumi ruffled her sister's hair; just a bit of friendly teasing between siblings. "Plus, there's something I've been wanting to try that I think you could help with." She explained, stoking Sumire's curiosity as she then declared, "I want to try sitting on your face."
"S-sit on my face…?!" Sumire's eyes widened at Kasumi's lewd suggestion. Yet, at the same time, the idea of getting so intimate with her sister's lower half sounded incredibly arousing, her pussy growing wet again just picturing their positions. "That… That sounds… really hot…!"
"Oh, trust me, I'm already getting soaked just thinking about it. And who knows? Maybe that world-class flexibility is enough that I could eat you out while I'm sitting on your face~" Like her sister, Kasumi had broken into full-on perverted mode. Granted, this was pretty low on the list of complicated positions she eventually wanted to try with her sister, but she didn't want to push Sumire too hard her first time eating pussy. Just hard enough to make it irresistibly hot.
Sumire giggled, flashing an eager smile at her horny sister. "I think I have enough energy for that, at least." She replied, and in a bold gesture of her own, the younger Yoshizawa pulled Kasumi into a deep kiss, adding an extra tease as she reached back and slapped her sibling's raised ass. The yelp that escaped Kasumi's lips was easily the most arousing thing she had ever heard. "Besides, we gotta find some use for this big butt of yours. Might as well be this~"
Kasumi huffed and rolled her eyes, only slightly annoyed by her sister's antics. "We'll see how you feel about that when you're smothered in it~"
Wasting no time, Kasumi shifted positions to something more favorable, spinning around with a flourish so that her cute, juicy butt was hovering over Sumire's face. She smirked upon hearing her little sister gasp, going so far as to lewdly wiggle her enticing rear. Then, with an excited giggle, Kasumi pulled her leotard to the side and sat down on her sister's face, shutting her up so that she could put her tongue to better use.
"M-MMPH!" Sumire cried against Kasumi's plump rear, air supply mostly cut off. Yet, rather than react with fear, the younger sister instead responded to the experience with great excitement, wasting little time sticking her tongue out and pushing it deep into Kasumi's folds, both hands grabbing thick chunks of her sibling's ass.
"Ngh… Aaah~! Oooooh, fuck, you're actually really good at this…" Kasumi had the wind knocked out of her for a second, not expecting her sister's cunnilingus to be quite so intense. If she didn't know any better, she could have easily been fooled into thinking that Sumire was incredibly experienced at lesbian sex, her tongue eagerly working its way along her folds.
Still, they were only halfway to where they needed to be. So, steeling herself against the inevitable waves of pleasure that would ensue, Kasumi grabbed her sister's legs and spread them open, getting face to face with her dripping cunt.
"This is gonna be one hell of a workout, but I promise I'll make it worth your while, sis~" Kasumi stifled another moan as she moved what little fabric was in the way. Sumire was performing admirably, but now the real test of her skills was about to begin. Taking one more deep breath, Kasumi pulled her sister's cunt against her face and plunged her tongue back into Sumire's depths, sheathing it deep within her sibling's depths.
Immediately, Sumire screamed into Kasumi's ass, struck by how amazing her sister's tongue felt even after cumming multiple times already. She wasn't going to let that stop her, though. Fighting through the waves of intense pleasure each flick of her sibling's tongue brought, Sumire retaliated appropriately, plunging her own appendage deep inside Kasumi's pussy, swirling it in every direction. Her hands kept playing with her lover's ass the entire time she performed her cunnilingus, groping and even swatting at Kasumi's rear cheeks a few times. Just to show that she meant business.
Kasumi certainly appreciated the effort, shuddering each time her sister's tongue flicked against her sensitive inner folds. It easily outclassed even her best masturbation sessions, driving her wild as she reciprocated with just as much fervor. It wouldn't do for Sumire to have anything less than the best, and despite her own inexperience, Kasumi made up for it with sheer intensity.
"M-MMMPH~! MMM~!" Kasumi's commitment towards her sister was definitely paying off, with Sumire frantically squirming and thrashing beneath her older sister. Already, she could feel her loins tightening yet again, body preparing to orgasm for the however manyth time that afternoon. Sumire refused to go down without a fight, though, and amidst her muffled screams she located Kasumi's clit, beginning to furiously lash at it with her tongue.
"OH FUCK~! RIGHT THERE, SUMIRE~!THAT'S THE SPOT~!" Kasumi cried out as a wave of ecstasy coursed through her, holding onto her sister's legs for dear life. For a second she was worried that she would completely lose control and crush Sumire under her ass, her ravaged clit almost instantly bringing her to the brink of orgasm. She knew she didn't have long at this point, and so leaning forward into her sister's cunt, Kasumi made one last ditch effort to make sure they came together, focusing all of her efforts on Sumire's own swollen clit, sucking and licking at the nub relentlessly.
"M-MMN~! MMPH~! M-MWAAAAAAAH~!" Sumire tried her best to resist cumming, but it was too little too late. Kasumi's sudden and frantic assault on her clit was too much, and in the blink of an eye, the younger Yoshizawa sister came hard, body lurching as her juices splashed against Kasumi's pretty face.
"HA-AAAAH~! OH YEEEEEEES~!" At the same time, the last of Kasumi's defenses had been defeated, sending the girl into a cascade of orgasmic bliss alongside her sister. Her pussy gushed forth in a plentiful flood of juices, covering Sumire's face as both of their cries echoed through the empty locker room.
Even in her lust-addled state of mind, Sumire had enough sense to roll Kasumi and her big ass off of her and onto the floor, gasping harshly as her orgasm fizzled out. Her chest heaved up and down, each breath tasting sweeter than the last. She didn't quite have the strength to get up at the moment, reeling from the aftershocks of her orgasm, but the dreamy smile dancing across Sumire's lips made it clear just how satisfying the experience had been.
"W-wow…" Sumire quietly uttered, aimlessly staring up at the locker room ceiling. "That was… The best sex we've ever had…"
"Y-yeah… Agreed…" Kasumi let out a half-hearted giggle in-between laboured breaths, having no strength to pick herself off the floor. Her legs still shook, feeling like jelly as she slowly recovered from her second orgasm. "But yeah… That was even better than I imagined it would be. We should've tried this weeks ago~"
"Ahah… You've got a point there." Sumire chuckled breathlessly, proceeding to wipe the lingering juices off her face. Part of her wanted to keep lying across the floor, but instead, the younger sister rolled over, slowly crawling towards Kasumi and hugging her close. "Mmm… You're the best big sis a girl could ask for, Kasumi~"
"Thanks…" Kasumi summoned just enough strength to place her hand on her sister's head, giving her a gentle nuzzle. It was reassuring to see Sumire so happy, especially after taking their relationship to an even greater height. "Are you still up for a hot shower and hot food after this?" She asked after a couple moments.
Sumire nodded. "Boy, am I ever! Doing all of this extra exercise just made me even hungrier."
"Good. I think this is definitely an event worth celebrating." Kasumi smiled, hugging Sumire against her chest. Her breathing was finally slowing down, but her body still felt like a massive boulder, impossible to lift off the floor. "Though it might be a little while before I can get up…"
"Ngh… Y-yeah, me too." Sumire agreed, feeling aches upon aches plaguing her muscles again. Rather than feel down about that, though, she simply chuckled and snuggled even closer to Kasumi, pulling their bodies flush. "Guess it's a good thing you've got a cute younger sister who can be your cuddle buddy until we can walk again~"
"That sounds like a plan to me~" Kasumi smiled as Sumire nestled herself under her chin, at which point she sighed out and closed her eyes. Today had been an incredible way for them to get closer, and she was looking forward to whatever would come next in their relationship.
After they were done cuddling, that is.