Some people wanted more Tai/Kari, others wanted more Tai/Sora. I say: Why not both? – Enjoy!
"Baahhh… come on Sora…" whined Tai, "you look so goooood." He added while wrapping his arms around her waist from behind, one hand sneakily pushing up her skirt.
"What do you think you're doing?" She used her elbow to push him a bit away and pulled her skirt back into a proper position.
Tai hugged her closer and rested his head on her shoulder.
"I thought you said we were meeting her to study." Said Sora trying to calm down a bit.
Tai nibbled at her ear. "Come on, how long do I have to wait? And I could have sworn you said you were in the mood earlier."
Sora blushed. "M- maybe," she stuttered.
"Well, if it's just a 'maybe' I guess I can't really help you." Said Tai, acting all upset.
"What…" Sora was completely surprised by his reaction.
"Well, you must want to get back to studying, huh?" he moved back to his place at the table and started to read in his schoolbook.
Sora speechlessly watched Tai reading his book, her boyfriend hadn't been right at all, she was in the mood, but Tai's very direct approach had surprised her a bit.
"Umm… Tai …" he was just giving her a side glance, "maybe… for a little while…" she said while blushing madly.
Tai stood up and smirked, "Ohh, so now you don't care that this is supposed to be a study meeting?"
Sora angrily stared at him.
He caressed her cheek, "naughty, naughty Sora."
"Tai…!" she angrily yelled at him.
"Come on, don't be angry. This is all I want." He said, while closing the distance between them.
"You knucklehead." Mumbled Sora.
Before they could bicker any more, they engaged into a passionate kiss, that quickly became a heated make out session.
Tai's hands moved from her back and waist down towards her skirt, pulling it down her legs.
Sora yelped in surprise when she realized that her skirt was now around her ankles. Tai quickly took advantage of her temporary state of confusion and put his hand between her legs, gently rubbing her wet core through the thin fabric of her panties.
"Now just a second, Tai." She moaned.
"What is it, Sora? Are you all wet now?" he asked with a smirk.
"Y-You jerk." Said Sora embarrassed.
She took a few steps back and allowed herself to fall backwards onto Tai's bed. The short moment of Tai gently rubbing her through her panties had already worked her up a lot and she was panting heavily.
Tai smiled and grabbed her panties to take them off, Sora again was surprised by his sudden eagerness, but showed almost no resistance. He took a moment to admire her beauty before he moved his hand between her legs again, caressing the creamy skin of her thighs. Just a few seconds later his head followed and after a few quick kisses to the inside of her thighs he playfully blew some air on the patch of red hair above her moist slit.
"Tai…" moaned Sora. He needed no more words and started kissing her labial lips.
"Spread it." Moaned Sora in bliss. Tai used both hands to gently spread her outer lips and immediately started to run his tongue through her wet core.
Felling how wet she already was, he quickly pushed one finger inside her. "Just like that." Sora's voice almost broke from the pleasure she was feeling.
He eased his finger deeper inside her, to create more friction while continuously lapping her most sensitive part. Sora let her hands run through his thick hair, pressing her pelvis against his face, to show him how much she loved what he was doing. She moaned loud when he started to suck on her clitoris, it was almost too much. Using her hands, she urged his face away from her wet sex and pulled him into a heated kiss.
She looked deep into his chocolate brown eyes. "Tai… I want more…" she said with a husky voice.
"Well then, I'll put it in, okay?" whispered Tai.
"Yes" answered Sora enthusiastic and flipped Tai over, so that he was laying on his back. Before Tai was even able to react, Sora already had grabbed his sweatpants and boxers, pulling them down just enough for his erection to come free. She quickly climbed on top of him and slowly lowered herself onto his magnificent manhood. Blissful, loud moans echoed through the Kamiya apartment as Sora was riding her boyfriend's thick meat.
Tai allowed Sora to dictate the pace of their lovemaking alone, before he grabbed her by her athletic butt and started to match her pace with his own thrusts.
"Oh, that feel so good, Tai…" moaned Sora happy, while she kept on bouncing on his lap.
Tai could feel that Sora was already closer to her climax that he had expected, her hot insides became tighter with every thrust he made.
"Sora… you are so tight…" he hissed in pleasure.
"T-Tai! I.. I want more…!" she was almost yelling from how close she was to her climax.
With a grin, he wrapped his arms around her and flipped them over so that he was on top now. He kissed her passionately, pushing her shirt and bra up, to finally gain access to the perky breasts that he loved so much. Sore enjoyed the way Tai was cupping and kneading her breasts, occasionally playing with her hard nipples.
"Tai" she groaned to tell him that she wanted to continue with the main course. With his trademark grin, Tai took her right leg and put it up on his shoulder. After a gentle bite into her well-trained calve, he mercilessly started to thrust his hard member into her hot, wet core. Hitting all her sweet spots from a perfect angle, Sora was quickly becoming a moaning and yelling mess.
Unknown to them, their not so quiet lovemaking had aroused Kari's interest. She had left her room and was now peeking into her brother's room. At first, it had only been through the keyhole, but the erotic display in front of her awakened a carnal desire in her she couldn't ignore. So, she carefully had opened the door to get a better view of what was going on. The view was absolutely mesmerizing and send shivers down her spine; Sora was kneeling on all fours, her body shaking with every powerful thrust of Tai's pelvis while his hand lovingly brushed over the nape of Sora's neck.
A mix of emotions rushed through Kari and made it impossible for her to think straight, she could only think about her brother's big cock and how much she wanted to switch places with Sora. Kari could no longer ignore the wetness and heat that she felt between her legs, slowly and carefully she sat down in front of her brother's room, pushing down her panties and shorts in one swift motion.
She only realized how wet she was, when her fingers were coated with slick from just a few brushes over her already swollen labia. She hadn't been this wet since the last time she had sex with her brother, it was so easy for her to put in two fingers, imagining it was her brother. Watching her brother fucking his girlfriend and Sora's facial expressions of absolute bliss swiftly brought Kari close to her climax. Just a few more strokes, imagining it wasn't her fingers but her brothers thick, hot erection made her come undone, moaning her brother's name.
Coming down from her high, Kari became aware of the mess she just had made, there was a clearly visible puddle of love juices under her and her panties which she had only pushed down to her knees also had been hit by some of her gushes. But most importantly, she realized her brother was standing in front of her trying to hide his erection with his boxers and his face beet red.
"What the hell are you doing...?" he asked.
Kari completely panicking just gushed out words "Peeping! Me! Pervert! Am! Sorry! Really!"
"You were spying on us!" he said shocked
Moments later, when she got a bit of her composure back, she realized that this wasn't just between herself and her brother. "Uhh...do you think she heard me?" she asked more to herself but audible.
"Only half the apartment heard that." said Tai confused.
At the same time, Sora was overwhelmed by shame, because Kari saw her having sex with Tai. For a moment she just wanted to leave the apartment and cry.
She was already in the process of putting her clothes back on when Kari softly called out her name. Suddenly she felt two slender hands cupping her cheeks and she was kissed by an incredibly soft pair of lips. Sora couldn't help herself but return Kari's gentle kisses, she could not deny that Kari was absolutely beautiful and had the same warm, chocolate-coloured eyes as her brother. So close to Kari, Sora saw a lot of similarities between the Kamiya siblings and it just made her more excited.
Kari also liked Sora a lot. For her Sora has always been more than just a friend, Sora had become a role model for her and since Tai and Sora were officially dating Karim immediately had welcomed Sora as a part of the family. Also, Kari found Sora incredibly attractive with her athletic jet, womanly figurine and handsome face.
Meanwhile, Tai looked completely flagger basted as his sister and girlfriend shared tender and passionate kisses. Even more when Kari allowed her hands to roam over Sora's body, quickly on of her hands found its way into Sora's panties and started to caress her still sensitive sex.
"K-Kari..." moaned Sora as she felt a single finger slipping inside her, "oh, just like that...ah!"
Kari gently pushed Sora on the bed and helped her, taking off her remaining clothes. "Sora you're so cute." She said with a singsong voice and started to take off her own clothes.
"You get over here too, Tai!" Kari ordered her brother towards the bed, who was still stunned by what was going on right now.
He quickly found his place between his girlfriend's legs and pushed his hard-on into her heated core, Sora eagerly met his thrusts with the movements of her pelvis.
"That feels so good..." Tai's energetic thrusts quickly brought her close towards a climax again.
Watching her brother fucking his hot girlfriend made it unbearable for Kari to just watch. While Sora was losing herself in the pleasure, Kari swiftly positioned herself over Sora's face, facing her brother.
"Sora... I want to feel good, too." She didn't wait for an answer and sat down on Sora's face. Sora had never been in such a situation before, but she only hesitated a few seconds before she started to kiss and lick Kari's tender, pink labia. The hot tongue between her legs felt incredibly good and Kari quickly begged for more.
"Ah... please Sora... suck it."
While she was getting eaten out, a blushing Kari looked deep into her brother's eyes and without needing to say anything, he cupped her cheeks to kiss her lovingly. Their kiss quickly became more heated, and Kari happily let her brother dominate her mouth with his tongue. Kissing his sister made Tai even more erratic with his thrusts and he reached his limit.
"Sora..." he whined as he reached his climax and filled her with his seed. Watching her brother's pulsating cock filling Sora, Kari started to rub Sora's clit in quick, circular motions. With a cry, that was muffled by Kari's crotch, Sora reached her climax from the almost painful overstimulation of Kari's fingers and Tai's climaxing cock. All tension left her body and Sora lay completely limb on the bed.
Kari turned around in one swift motion, now face to face she planted featherlight kisses all over Sora's face, not minding that she was partially tasting herself on Sora's skin. With Kari kissing his girlfriend and unconsciously shaking her small butt, Tai quickly was painfully hard again. When Kari looked back at her brother, she smiled seeing what an effect she had on him; knowing how much Tai and Sora loved each other she would never try to separate those two in her own favour, but she really wanted to offer her brother something special. "Put it all the way up my ass."
Processing what Kari had just said, Sora grabbed Kari's small, firm ass-cheeks and spread them, revealing the tiny, puckered hole. "Right here, Tai..." said Sora mischievously.
There was plenty of slick left on his erection from the orgasm he had with Sora. Without hesitation, he pushed the bulbous head of his cock against Kari's tightest hole, slowly easing his dick into his little sister's ass. Once he was past the initial tightness, it was surprisingly easy for him to continue further.
"It's going in, Kari" he moaned while clutching her hips.
"It's alright." She groaned.
Tai slowly entered her further, but when he had reached two thirds of his length, he noticed that Kari's arms and legs had started to shake. "Are you okay? I'm gonna move it."
Kari wasn't able to properly answer him, she only let out a mixture of lustful and painful moans. Tai in his eagerness tightly wrapped his arms around Kari's mid and pulled her back.
Kari let out a surprised shriek as the momentum carried her further and she came to a stop sitting in Tai's lap, reverse cowgirl style while her brother lay with his back on the bed. The whole manoeuvre had pushed Tai's dick to the root into Kari's ass. Tai's hands quickly spread her legs as wide as he could, fully exposing her to Sora's stare.
"W-wait a second, Tai! You know, maybe this wasn't the best idea." Said Kari having a moment of insecurity. But Tai ignored her, with his strong hands her grabbed her ass and slowly moved her up and down on his length like she was a life-sized sex toy. Kari no longer wanted to protest, every movement on her brother's big member sent jolts of pleasure through her body.
Sora really enjoyed watching the incestuous display of pleasure in front of her, but just like Kari earlier, she wanted to be involved, too. She leaned forward and used her fingers to spread the tight seal of Kari's nether lips before she mercilessly started to lick and suck Kari's tiny clit.
"Oh, keep doing that. It feels so great." The lustful double assault brought her to new heights of pleasure.
While it had been surprisingly easy for Tai to enter his sister's tight ass; the warmth and tightness he felt took a bigger toll on him than he would have thought. He felt he was already getting close to his climax again. "Kari, I'm gonna cum..."
"Eeah! M-me too..." she said between moans.
With a loud groan Tai reached his climax and spilled his hot seed deep in Kari's ass, thanks to Sora's tongue on her clit Kari reached her climax almost at the same time. She nearly blacked out from the pleasure flowing over her body, but between her brother's strong arms holding her and Sora's loving caresses, she was hovering on cloud nine through her orgasm.
Tai put the extremely exhausted Kari back onto the bed, making sure she could rest her head on a pillow. He leaned back against the wall letting out a sigh, "Uhhh...Okay, I.. think I've reached my limit here..."
"Taiiii.." he heard the pleading voice of his girlfriend, her face flushed, "can we go for another round?"
He swallowed hard as he looked into the beautiful, crimson eyes he loved so much. Her loving, pleading stare was too much for him to handle, he just couldn't deny her wishes.
Soon Sora was on all fours again, Tai behind her holding up one of her legs while he was penetrating her with powerful thrusts.
"I'm going to see this through all the way to the end!" Announced Tai with his regained vigour.
"Y-you knucklehead..." said Sora happily giggling.
I'm finally done with this chapter after two years, the next one will be out faster, I promise. Also, for the next chapter we will leave Odaiba and visit Shinjuku.