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A Day/Night with Nagisa

Chapter Six

A few days later…

Tokyo

Nagisa climbed the stairs up to his apartment and groaned. "Man, Korosensei made it look so easy. Why do they always send me the rowdy students?"

Slumping his shoulders, the small man tiredly made his way to the door to his apartment. He hoped that one of his girlfriends was home so they could give him a much needed massage. "Shoulders are killing me." Reaching the door, he pulled out his keys to unlock it before his sharp hearing picked up the sound of voices from the other side. He could hear Hayami and Kanzaki, but also a third voice that he didn't quite recognize.

Unlocking the door, he opened it and stepped inside. "Girls! I'm home!" he called out while closing the door and slipping out of his shoes. Looking at the entryway, he saw a pair of very fashionable heels sitting next to his girlfriends' shoes. There was only one person who would wear shoes like that…

"Nagisa! We've got company!" called out Hayami from the living room.

Curious, Nagisa walked into the living room and saw his girlfriends on the couch. Sitting in the middle of them was their old English teacher: the beautiful assassin, Irina Jelavic. "Hey, Bitch-Sensei. Long time, no see," greeted her old student, wearing a brown trench coat.

"I wish you guys would stop calling me that. It's been years," lamented the busty blonde while rolling her eyes. "But still, it's good to see you, Nagisa. I still see you've barely grown an inch. You sure you don't want me to get you some growth hormones to make you taller? The offer's still on the table."

Taking a seat, Nagisa shook his head. "Thanks, Miss Jelavic but I'm good."

Kanzaki giggled. "Yeah. Besides, Nagisa taking stuff might do something to his libido and we can't have that."

Irina grinned. "Can't fault that argument. It'd be terrible if you two lost your stud," laughed the woman.

"So what brings you here? Re you out on a job?"

The assassin dismissed the question with a wave. "No, I finished up my last job a few weeks ago. I usually take a break in between jobs. So I decided to come by and see how my favorite students were doing. Well," her blue eyes stared knowingly at Nagisa. A shiver ran down his spine when her lips formed a seductive smile. "That and I heard about all those dreams you've had about having a threesome with me and Ritsu."

The two young girlfriends laughed when their lover's cheeks turned a fiery red, his ears turning so red that it looked like steam was going to shoot out of them. "Wh-who…how do you know about that?" His eyes turned to his girlfriends, first Hayami and then Kanzaki, staring at them accusingly.

Giggling from her former student's reaction, Irina reached between her tits and pulled out her cellphone. "Oh, don't worry. Your girlfriends didn't tell me anything. I learned about your little fantasies from an old friend of ours."

As if on cue, Irina's phone lit up and a familiar face popped up on the screen. "Heheh! Long time no see, Nagisa!" waved the cute artificial intelligence, Ritsu.

"Ritsu?!" Nagisa's blue eyes almost bugged out of his head. "I thought you weren't on our phones anymore!"

Hayami couldn't help but roll her eyes. "Nagisa, this is Ritsu we're talking about. It's kinda hard to stop her from doing whatever she wants."

"Right, right…" Nagisa facepalmed. "Okay, follow up question: Ritsu, you were spying on us while we were sleeping? And…" Squinted at Irina's phone, Nagisa noticed how the A.I. looked different than the last time he'd seen her. "Did you make yourself look older?"

"Yep!" cheered the happy software program. Instead of the teenage schoolgirl they all remember her original avatar as, Ritsu had updated her look to give herself an older appearance. Her hair was longer and had more volume, her face and body looking like she'd aged herself into her prime if she was a human being. "You like it? I figured since all my friends were grown up, I should be grown up too!"

"Fair enough. That's a good look," Nagisa noted before he swung the conversation back to the original topic. "But yeah, you've been spying on us while we've been sleeping?"

Kanzaki nervously scratched her head. "Um…actually, Nagisa. We asked Ritsu to keep tabs on you."

"What?!"

"Calm down!" Hayami's irritated look silenced her boyfriend's anger. "We had Ritsu sneak onto your phone and monitor you to make sure that if you started having health complications, she could catch it and let us know straight away."

"Health complications."

Irina smirked. "Nagisa, you're a goddamn breeding stud. But you're one man having to pleasure a lot of lovely ladies. It's only natural for your girlfriends to make sure it didn't start to take a toll on you."

"So while I was monitoring your heart rate and blood pressure, I overheard you talking in your sleep."

"Ah, okay. Sorry I got upset. You were just looking after me."

"Well that and I sorta told all of your female lovers…" admitted the pinkette program.

"What?!"

Irina couldn't help but smirk, pointing to Nagisa's lower half. "You can get uppity all you want, Nagisa, but the bulge in your pants tells us you've been thinking about it for quite a while."

Nagisa's cheeks turned to their shade of pink embarrassment. Popping a boner was usual for the young teacher but getting called out on it was never a fun experience. "Um…well…"

Clapping her hands to bring the focus back to her, the busty blonde assassin continued to smile at her old student. "Oh, don't worry, Nagisa. I'll be taking care of that for you all night long."

"Huh?"

Kanzaki laughed at Nagisa's shocked expression. "She wants to be another Friend with Benefits with you, Nagisa."

"…Huh?!" Getting to take the assassin to bed was always a dream for Nagisa, but then, so did every other boy from the classroom. "But…what about you and Karasuma? Aren't you married?" Nagisa might have been okay with banging single women, but he drew the line at having relations with a married woman. Plus, the idea of cucking Karasuma, of all people, made Nagisa feel very afraid. He might have been the best in the class, but his old P.E. teacher was the best period.

"Oh, Karasuma and I are in a trail separation thanks to our marriage counselor," explained Irina with a huff. "My husband's new position in the Ministry of Defense has caused complications between us. So, we decided to take a break from each other. That's when Ritsu told me about your little fantasies so I decided to come here and take you around the world."

Hayami leaned against the couch and gave a knowing smile. "That and it's kinda right you take responsibility since all of us think it was that kiss you gave him when you first showed up at the classroom that awakened Nagisa's massive libido."

"Is that so? Well, I'll do my best to take responsibility," said Irina, putting a hand to her lips and winking at Nagisa.

"Um…I'm all in for having a night of fun with you, Bitch-Sensei. Hayami, Kanzaki, are you both okay with it?"

"Yeah," said both girls happily.

Kanzaki explained herself further. "We had some clothes we thought Irina would like. Plus, this'll give us a night to rest our hips," she confessed.

"Yeah, I'm still sore from last night," said Hayami.

"Well, I'll have to do my best to take some of the load off you two." Irina stood up and gestured to her young student to get up too. "You go wait in the guest bedroom while I go change into the stuff your girlfriends have for me."

Nodding, Nagisa got out his chair and headed to the guest bedroom his girlfriends had set up for when their friends came over to spend the night with them and Nagisa. Closing the door behind him, Nagisa quietly stripped out of his clothes and sat down on the bed in his birthday suit.

After few quiet minutes of waiting, the door opened and in stepped Irina, a hat covering her head. "You ready, Nagisa? I know I am…" Closing the door behind her, Irina undid the ties to the trench coat. "I've watched recordings Ritsu made of you fucking the other girls. I hope you still have some gas left for me."

The trench coat fell to the floor along with her hat, revealing what Nagisa's girlfriends had given the seductive assassin. The first thing that Nagisa took note of was Irina's hair. Gone was her shimmering golden locks. Instead her air had been dyed to match the pink shade of Ritsu's avatar and styled to match the A.I.'s hairstyle. Standing confidently with her hands on her hips and legs spread apart, Irina grinned as Nagisa's eyes took in the sight of her new outfit: knee-high leopard print boots, matching leopard print stockings as well as leopard design panties that were hooked to a matching garter belt. Her elbow-length gloves matched the same pattern as her lower half and her equally leopard print bra just barely contained those magnificent jugs for her.

"You like? The three of us talked to Ritsu and she told us that she found leopard pattern lingerie to be the sexiest."

"Clearly," said Nagisa, eyes glued to her massive breasts. "And the pink hair dye?"

"Well, you obviously can't have sex with Ritsu but we can do the next best thing. Oh!" Reaching into her breasts, she pulled out her cellphone and set it on a dresser where it faced the bed. "Speaking of Ritsu…"

The bubbly A.I. popped up on the screen. Nagisa blushed when he saw that his digital classmate's avatar was nude, the girl sitting on a digital couch with her legs spread, one hand reaching down to touch herself. "There's no way I'd miss this," said the program.

"Well, Ritsu, I can safely say you just solved the mystery of 'Can an artificial intelligence get horny?' I'd never thought I'd see you like this," said Nagisa.

"Oh don't worry about her. She's just an observer. Put those eyes on me, big boy…" The lustful assassin slid onto the bed, settling herself on Nagisa's lap. Her huge chest pressed against his, Nagisa's arms instinctively wrapping around her as he stared into her beautiful eyes. "I hope you've been keeping up with my lessons, Nagisa. Because I think it's time I gave you a little test to see how you've been using them…"

Cupping Nagisa's face, Irina leaned forward until Nagisa could see his reflection in her soft, blue eyes. To Irina's delight, her former student bridged the gap between them and kissed her on the lips, hitting her with a twenty-hit combo.

Pulling away from the kiss, Irina licked her lips. "Not bad." Hugging him tightly so that her breasts smooshed into his thin chest, the pinkette leaned forward for more. "My turn…"

Nagisa may have been skilled but he was still a novice compared to the honeypot assassin. The kiss his old teacher gave him was mind melting, easily a fifty-hit combo at least. All the while she rolled her hips to grind her panty-clad pussy against his throbbing erection, Nagisa close to coming just from the kiss alone.

Sliding off his lap, Irina grabbed his legs and yanked the small man towards the edge of the bed, dropping to her knees. Palming her ample bosom through her leopard print bra, Irina grinned up at Nagisa. "I know how much you've been wanting these. All those days in class, you and the other boys were always staring at my tits while you thought I wasn't paying any attention. Well now, I can give you some attention."

Nagisa watched, his mind turning to absolute mush when the pinkette slid his massive cock in between her tits, squeezing him with the biggest chest he'd ever seen. "Oh fuck! Ah!" he moaned almost pathetically from the tight yet soft pressure that surrounded him.

Then Irina started to actually move.

Those large globes of softness moved up and down his long shaft, Irina smiling as her tits heated up from the friction. Nagisa had been given a paizuri before, but nobody could compare to the seductress currently between his legs. "Holy fuck, that feels good!" he moaned, his body tensing as the pleasure pooled inside of him.

"Heheh, now you see why nobody can resist me. I'm not just a pretty face. I've got skills that could make a man shoot his soul out his cock."

Despite her confidence, Irina was still impressed by the huge cock wedged between her titties. She'd lain with enough men from her jobs to get a good measure of dick sizes and even she had to admit: Nagisa was somehow the bigger man. If someone had told her that the tiny boy she'd kissed back when she was first hired to assassinate Korosensei would be incredibly hung, she wouldn't have believed them and would have probably shot them for good measure.

Now she was really interested in seeing what Nagisa could do with it.

The tip poked out of her titty prison, smearing the inside and top of her breasts with his pre-cum. Her head leaned down to get a taste, purring from the hot flavor and imagining just what Nagisa's cum would taste like.

It did not take long for the dyed-pinkette to get her wish. "Fuck! Fuck! FUCK! I'M COMING!" grunted Nagisa, his eyes rolling into the back of his head as the pressure from those glorious tits got the better of him. Irina's mouth wrapped around his thick head and hot cum blasted into her mouth, stuffing his seed down her throat.

Ever the minx, Irina sucked up Nagisa's cum like a vacuum, the look in her eyes as she looked up at him something that few men ever lived to tell the tale. Over in her phone, Ritsu pumped three fingers in her snatch while watching her teacher blow her crush's mind with her mouth.

Irina was pleased to see that Nagisa was still hard when she pulled her mouth and tits away from him. "So Ritsu wasn't lying when she showed me those videos of you being so long lasting. And here I thought that was just good editing."

Walking over to her trench coat, Irina pulled out a small bottle and gestured for Nagisa to lie back on the bed. Crawling towards the middle, Nagisa laid on his back while Irina sat down next to him. He saw in her hands was a bottle of lube.

"I know it's cold. But don't worry. It'll heat up soon enough." Irina coated Nagisa's cock with her lube until he was completely covered from tip to balls. Turning around, Irina backed her phat ass into Nagisa's lap. Pulling her panties to the side, she reached around with guide Nagisa's slickened manhood to her backdoor. "Get ready, Nagisa. I'm about to take you around the world!"

Nagisa's cock quickly became enveloped by incredibly tight and hot walls. Irina cringed as she felt the huge cock fill up her asshole, but had been trained enough to relax her butt to let the slippery log of meat slide into her unimpeded. Ritsu saw the look on Irina's face as she sank down onto her student's lap, taking him all the way to the base and stuffing her ass like a turkey. The A.I. quickly took a picture for later, wishing it was she who was getting her ass railed.

Quickly adjusting, the honeypot assassin put her hands on her student's knees to steady herself before she began to ride the Nagisa train. "Ah! Ooooh!" Irina's lower half felt like it was going to be split in two, her ass stretched to the limit by the cock wedged inside her. "Fuck! You're a really big boy!" she moaned, throwing her head back as she started to bounce up and down on the man's cock. "Oh fuck! You're so fucking deep!" Her bubble butt clapped with Nagisa's slim thighs every time she crashed down onto him.

Nagisa was in absolute heaven. He'd done anal before but hardly any of his friends with benefits could take his entire cock up the ass like Irina could. His hands instinctively grabbed her waist to bounce her up and down faster, his eyes mesmerized by her ass clapping as it smacked his hips. Eying her bouncing tits, Nagisa let go of her hips to reach around and cup them, marveling at how firm yet soft they were, his fingers sinking into her soft boobs through her bra.

Ritsu pumped her digital toy into her sopping wet pussy, moaning while watching the woman who looked get her asshole fucked to its limits.

Letting go of one of Irina's titties, Nagisa reached lower and shoved his hand into the assassin's underwear to touch her pussy, finding it soaking through her panties. Irina arched her back when she felt his soft fingers rub her wet pussy, feeling like a real woman for the first time in a while. Karasuma was a lot of things, but Nagisa seemed to outstrip him when it came to both size and finesse. "Fuck! You keep it up, I'm gonna come!" cried out Irina.

Nagisa could do nothing but grunt into his teacher's ear, his cock feeling like it was going to be crushed by her tight ass. When the young teacher could take no more, he buried his face into Irina's dyed hair, inhaling her sweet perfume while his balls tightened. "I'm gonna blow!" he grunted.

The thick cock in Irina's guts exploded, stuffing her guts with cum. Feeling her stomach being filled with hot man seed pushed Irina over the edge, her pussy squirting around Nagisa's fingers and completely soaking her panties.

Panting for breath, Nagisa fell back on the bed. For a moment, Irina remained where she was, lost in the bliss from her filled ass. Slowly she rose off her student's cock, cum leaking out of her gaping ass. Grabbing a few supplies she'd stashed in her trench coat, she quickly cleaned up Nagisa's cock until his manhood was nice and clean. To her delight, throughout it all he remained erect, just how she wanted him.

Lying on top of him, Irina kissed him sweetly, moaning into his lips as his hands ran along her smooth back before cupping her supple ass. "I-Irina…"

"Nope. Don't call me that." The assassin traced a circle on Nagisa's small chest. "Tonight I'm Ritsu. Remember?"

Smiling, Nagisa nodded, having forgotten they were supposed to be playing out his fantasy. "Ritsu…" he murmured lovingly.

"Better." Irina gave him another smooch before she gripped his slickened cock. "I know how much you've wanted me. I want you to do every single thing you've dreamed of to me tonight."

The lovers wrapped their arms around each other and rolled around on the bed. Pushing his teacher onto her back, Nagisa beheld the seductive teacher beneath him. Tugging her bra down enough to expose her teasing nipples, the teacher teased Irina by thumbing them before he turned his attention to her soaked panties.

Settling between her thighs, Nagisa grabbed her underwear and slid it down Irina's beautiful legs. The dyed-pinkette pushed her legs together to let him slide her panties down until they dangled around her left ankle. She reached down and spread her pussy's pink lips, revealing her tight hole to her student. "Go on. Give it to me…"

Aiming his manhood at her opened cooch, Nagisa didn't hesitate and pushed into her. Feeling him enter her womanhood, Irina arched her back and smiled lewdly. She'd retired from being a honeypot assassin for several years and with Karasuma so busy, her pussy had been rather lonely and longing for a good pounding, a pounding Nagisa was more than happy to give.

The bed shook as Nagisa pumped in and out of his former teacher, watching with rapt attention as her heavy tits bounced like water balloons. The tight suction of her warm pussy spurred Nagisa to fuck the dyed-pinkette's brains out. Irina threw her arms over her head, smiling up at Nagisa as she experienced true bliss for the first time in forever.

Leaning down, Nagisa pressed his small chest into the woman. Irina's legs wrapped around his slim waist, keeping him locked in so he couldn't do something as silly as pull out. Feeling her soft breasts push against him, Nagisa moaned into Irian's face. "Ah! Nngh! R-Ritsu! You feel so fucking amazing!"

Grinning from ear to ear, the assassin clutched him tightly. She would have given a witty retort had it not been for the huge cock plugging up her womanhood. Every time she felt her pussy get bottomed out, she saw stars. Her vision became lost in a sea of blue from Nagisa's eyes and hair. She dug her nails into his back, adding her own lines to the collection he'd acquired from his girlfriends and fuck buddies. "Ah! Yes! Oh! Oh! Oh! Fuck! Fuck me! Oh! Oh! Ohhhhhh!"

Ritsu watched and recorded everything she was seeing, now using two dildos to fuck her holes. "Yeah, that's it, Nagisa! Fuck me! Fuck me harder!" pleaded the A.I., keeping with the illusion that Nagisa was actually fucking her and not Irina.

Nagisa pushed Irina's bouncing titties up so he could suck on them, switching back and forth between suckling them and leaning up to give deep kisses with Irina. With every thrust he could feel his balls tighten up, readying to release inside the assassin's sweet snatch. Throwing her head back, Irina gripped the sheets and moaned. "Fuck! Your cock is giving me a thousand-hit combo! I'm gonna come!" she finally shouted, her legs grip on his slim waist tightening. "I'm coming!"

Nagisa smashed their lips together, swallowing her moan as he joined her in climax. Irina happily tied their tongues together while her womb was filled. Like the other girls, she was on birth control so she didn't have to worry about explaining to Karasuma why there was a little Nagisa cooking in her oven. They remained glued to each other until Nagisa finished topping off her pussy, cum leaking out of her plugged snatch.

Pulling out of his former teacher, Nagisa laid down next to her. The blue-haired man and the dyed-pinkette happily snuggled together, lost in the feel of their lips and hands. Looking over to Irina's phone, Nagisa called out to his friend. "Did you enjoy watching, Ritsu?"

"Ah! Yes! Watching you fuck me was soooo hot!"

The two on the bed looked at each other and raised an eyebrow from seeing what Ritsu was doing to herself. "Ritsu…how did you build a digital sex machine?" asked a curious Nagisa.

"Ah! Ah! P-Plenty of code, that's how!" moaned the A.I., showing that even a computer program could become a pure slut under the right motivation. The pinkette was strapped to a bench, a sex machine from behind her pumped two massive dildos into her holes.

"Anyone who's afraid of an A.I. uprising needs to see this," chuckled Irina. Kissing Nagisa's cheek, the assassin turned his attention back to her. "Don't go soft on me just yet. I'm staying the whole night. And it's going to be a long night for all five of us."

"Five?"

"Yeah. You, me, Ritsu…and two more Ritsus…"

The door to the bedroom opened. Turning around, Nagisa saw Hayami and Kanzaki walk in, both wearing slutty lingerie and had dyed their hair pink to match Ritsu's. "We also know you dreamed about fucking multiple Ritsus. So let's act that out shall we?" said Irina.

The real Ritsu watched as her friends joined the lovers on the bed. By the time the night was through, she'd have plenty of footage recorded for personal use later on…

To be continued…