Chapter Text
After the episode on the roof, Naoto was even more thrilled to try new things sexually . She was now dating Kanji officially, the young man confessed his love after this incident and Naoto was very happy to accept his feelings. The young girl has to admit that having sex with him actually confirms a lot of things inside her, and she in fact loves him a lot. She has repeated the experience with him a couple times, and discovered a very tender man that cares about her comfort and fills her needs in every aspect. Their relationship has grown for the best, to the point she trusts him with all her heart. It’s not only about sex but she also likes to talk, hug and kiss him. The relationship overall was very much pleasant, but Naoto wanted to experiment new things. Their sexual experience was overall pretty much vanilla, and Naoto sometimes feels she wants to get a bit more wild in bed.
Naoto has talked openly with Rise about her experiences with her boyfriend, and they also exchanged a couple tips together p. She was even more surprised that everything came so naturally with her best friend, but Rise was a really easy friend to talk with on every subject. This time the idol has pushed her luck, and proposed something new that made the detective very curious. She asked if Naoto was interested in sharing the bedroom with four people at their apartments.
Naoto has to talk to Kanji first, she was not against the idea. The delinquent was a bit more hesitant, but Naoto argued about the pros and cons and he finally accepted. Naoto thought about it, she thinks it will be very interesting to learn stuff from another couple, things that they can be applied after in the bedroom together. Basically Rise was a sex expert so they are pretty sure seeing the other couple in action will only be beneficial for their new relationship. Naoto really hopes she will learn new interesting positions with her boyfriend during the experience.
They also both trust Rise and Yu as their close friends, they are sure they have no risk of breaking any couple during the intercourse. They still set some rules just to be sure, boys would only be busy with their own girlfriend during the night. It’s probably for the best to start like that, and see if they can go further later when they all will be more familiar together.
So they were in the girls apartment, with the two boys sitting on the bed. The girls was changing in the bathroom. Rise convinced Naoto to get some sexy outfits for the occasion, the blue-haired has no choice than follow her enthusiast friend into this plan. The idol almost forced her and pushed her inside a sex shop, the detective blushed furiously and looked at the empty wall too ashamed to be here at the first place. She knows that she needs to make some efforts too to get into the more wild stuff about sex, but all those weird toys and outfits were very intimidating for the not so experienced detective.
So, Naoto was now dressed in a beautiful blue outfit that she brought earlier. The top was a laced blue corset with a lot of ribbons and laces, and the bottom part was just a small blue bikini a bit too thin for her hips. Her belly and hips were visible, which made the tiny girl a bit embarrassed. She saw that outfit in the sex shop last time and it catched her eyes directly. It was very elegant even if it revealed a lot of skin. It makes Naoto look like a real “prince”, even if her hips and boobs were more apparent. She in fact feels guilty to like it a lot.
“You look beautiful Naoto! I’m pretty sure Kanji will totally fall for it.”
“You think? “Naoto looks at the floor shyly. “I’m a bit embarrassed to show myself to a lot of people in that type of outfit… “
“Really? It will only be your boyfriend, me and Yu, not a big deal!” Rise smiles when starting to dress herself.
In fact, Naoto was a bit shy to show herself like that to her senpai more than Kanji. Yu was a cool guy, but she always felt a bit intimidated by his presence. She had previously had a crush on him, but never confessed especially when Rise said she had a crush on him too. The girl code said that she had to move on from Yu, but anyway she can’t imagine not being with Kanji right now. So she’s really glad that her thoughts on Yu were now gone she never really confessed. It would be even more awkward if she did the end.
Rise finally finishes changing. She was wearing an exotic purple outfit. The top was a small gold bikini with a lot of jewelleries and cute details. She also wore long puffy pants that were cut short on her hips, showing almost a small pair of gold panties. She was very sexy in that outfit, Naoto had to admit to herself that it was hard to not look at her friend like that.
“ Pretty right? What do you think? “ said the idol while moving her hips like she’s posing.
Naoto finally gains her composure and smiles “That fits you very well Rise, I think you might impress Yu-senpai easily with that attire. “
“I'm pretty sure both guys will die when we return to the bedroom! “ she giggles before grabbing the detective’s wrist to push her near the door. “Let’s go, don’t let them wait!”
Naoto gets pushed at the door of Rise’s bedroom. The idol enters first, and brings the detective with her. The boys notice the girl's presence and they raise their head to look at them, and their jaws drop.
“So what do you think? Sexy right?” Said Rise when moving her hips sensually.
Naoto was a bit embarrassed and looked at the near wall. She doesn't have the courage to slide a word so she stays quiet.
“WOW you both look very gorgeous! “ expresses Yu with a large smile.
Rise moves her way to reach her boyfriend, she puts her hands on his shoulders and gives him a quick kiss. “ Happy that you like it, naughty boy. I chose it specifically for you. ~“
Naoto was still far away, fearing the look of her boyfriend and caressing her arm nervously. “ It.. It looks stupid on me right? “ she finally said.
Kanji shakes his head violently, still very surprised by the view. “No! Not at all” he almost yell “Ya… ya so sexy, damn…”
The blue-haired girl finally gives him a look and smiles. The poor man was blushing furiously and his eyes and mouth were opened by the surprised view. She can even sees a bit of blood under is nose. Naoto is still very surprise that even with all their sexual activities Kanji was still acting like he’s seeing her for the first time every time. In fact, that’s amuse the tiny girl a lot and she thinks it’s very cute from him.
She finally walks near him and passes her hands in his black hair, caressing his cheeks with her fingers when giving him a warm look. “Thank you, you are so kind. I’m glad that you like it, I choose it for you.”
He replies to her with a tender kiss, Naoto falls into his arms and finally sits on his knees deepening the kiss. They almost forget that the other couple was in the room, Naoto breaks the kiss when Rise start to giggles bringing her into the reality.
“ You guys don’t waste any time! “ she said when smiling and sitting on Yu’s knees copying the other couple. “So should we start? I’m so hungry” she licks her lips and give a seductive look to her boyfriend.
“What do you have in mind?” Asks Naoto curious.
“We can show you some tricks, and if you want to join feel free to do “ said Yu looking at the other couple. Rise giggles and gives a needy look to the grey-haired boy “Oh… yes we can do a little demo for the new couple.”
Naoto nods and smiles. She was a bit horny but will definitely want to take some notes from a more experienced couple so she doesn't mind waiting a bit before the main event. Kanji gives them a grin and grabs his girlfriend by her butt, at her surprise at first, and he brings her to the couch just near the bed.
When they are both sitting, Naoto removes herself from his knees to sit next to him to get a better view of the scene. She was indeed very interested to watch another couple have sex in front of her in reality. That will be probably very more interesting than watching porn, and her last activities with the idol develops a sort of kink she never thought she would get. It’s just this time they won’t get caught in a public place, and she’s feeling less anxious about that.
Rise doesn’t waste any time, she pushes Yu to force him to sit on the bed and she grabs his belt with appetite. The gray-haired man understands quickly the idol’s plan and unbelt his pants, revealing his white plain boxers. Rise stands on her knees in front of him, licking her lips when grabbing her boyfriend's hips near the elastic of his boxer. She removes them in one go, revealing his semi-erected penis. Yu finishes the job and removes his shirt in one go.
That’s probably the second time Naoto sees another man naked, she suddenly feels fascinated by Yu’s body. Overall he’s less muscular and taller than Kanji, but the package is already impressive for his size. It’s really hard for the detective to not look at it in reality, her eyes still on his dick. She gives a curious look to Kanji beside her, he’s also looking at Yu with his mouth wide open. He was probably also impressed, knowing her boyfriend's sexual preference it was not a huge surprise for the detective.
Rise smiles and looks at Naoto "For your new lesson I will show you how to do a proper blowjob!" She giggles. Naoto blushes but
Rise starts her attention by masturbating her boyfriend, it didn’t take too long that Yu was fully excited. Now Naoto can have a better comparative. His dick was a bit longer than Kanji, probably an inch if she can estimates from that far, but the delinquent beat him for the circumference. She was still looking a bit obsessed by the view when fighting her random naughty thoughts.
Rise closes her face from his dick and licks the precum that was leaking and continues to tease her boyfriend when giving him some seductive looks. She uses her tongues, licking the length from top to bottom and takes particular care of the tip. Yu moans and he flips his head backwards overwhelmed by Rise’s attention. He was now moaning and chanting her name, breathing rapidly and sweating.
Suddenly Rise stops, still touching him she looks at her boyfriend with a smile “I don’t want you to come right now senpai, we still have stuff to do later. We need to teach to the new couple how to fuck properly.”
He complains a bit, even more when Rise removes her hands from his dick. He decides to take his revenge and grabs the idol by the hips to push her on the bed. She was surprised at first but laughed when he put himself on top of her, still grabbing her two hands so that she couldn't move. She was now his prisoner, but the role-play seems to amuse the idol.
“You are a really naughty girl you know “ said Yu with a very alpha male voice.
Naoto almost got chills from that, she was probably as excited as Rise. Her small blue bikini was now very wet, but she didn’t care right now, she was still watching the other couple with attention. She wants to focus on the show in front of her without missing any parts of it.
Yu starts kissing her neck and slides his hands on her breast. He removes the bra with ease and he starts massaging her boobs directly. He continues with kisses on her belly and hips before going up on her breast again. Rise moans when his tongue reaches her nipples, and he starts sucking them with attention. He uses his teeth and it makes the idol produce a sound that Naoto never heard from the other girl before. The detective’s body got chills, it's like she’s living the same scene as her friend right now.
Yu went to the south and remove slowly her pants and underwear. He didn’t waste any time and starts licking her pussy with appetite. Rise arches her back and screams from the sudden pressure on her clitoris. Naoto watches her friend for a moment, the idol was about to lose her mind. She has a hard time to see what Yu is doing from this angle but seeing how the idol react gives her a good hint is doing a great job. She can see the idol sweat and her face becoming red, she is screaming her boyfriends name with need. “Omg Yu… Yes Here please!” She begs.
After a moment she starts to giggle uncontrollably and puts her hand on Yu’s hair, pushing his head. “ Wow you are so hungry my love! Ahhh! I don’t want to come already so keep this for the main event!”
Yu gives her a disappointed look but Rise doesn’t give him any time to be sad. She smiles at him before turning herself to face the other way and stand on her hands. She shakes her butt and gives him a seductive look from her shoulder. He gets the hint and grabs her hips possessively and closes the distance between his own hips and hers. He rubs his still erection between Rise cheeks, rubbing slowly her clitoris. The young girl moans.
“ Oh…. So you are ready as I can see. “ she said when giving a look from her shoulder and licking her lips. “Please senpai don’t wait and fuck me!
“You don’t need to ask it twice.” Said Yu when reaching the drawer near him and grab the first condom he sees. During this time Rise looks at the other couples, smiling. “Hope you will enjoy the show.”
Rise raises her butt, she is now on her elbows and smiles at the young boy behind her. Yu didn’t waste any time and put the condom on like he’s used to it. Probably Naoto has no doubt that these two are pretty active on this level. The gray-haired boy finally buries his dick slowly into his girlfriend vagina. Rise screams by the sudden intrusion, but that doesn't stop Yu from continuing until he reaches the bottom. He waited a bit before starting to smash her hard again and again.
Naoto was a bit surprised by the roughest of their act. She was used with Kanji to go slower, takes time and be sure both of them are fine. In fact, even with such violence Rise is now chanting her boyfriend name and even move her hips herself. She even put her hands on her back, trying to reach him desperately. Yu takes the hint and grabs her hands, bringing the idol closer to him, her back now touching the boy’s chest. Her back arches and her screams become louder and louder. Rise seems to really enjoy it a lot, and Naoto was a bit envious. It’s likes Yu was using her girlfriend like an sex object, smashing her inside without even thinking about Rise feelings. The detective never considered integrating this in the bedroom with Kanji, but she was now even more thrilled to try this out. Wet sound was now echoing in the bedroom, mixed with the idol’s moans and Yu’s heavy breathing. It looks close to a real life porn movie, and Naoto is extremely fascinating.
Yu suddenly releases his girlfriend’s arms, and grabs her twintails instead. He continues his hips movement inside her with more energy by pulling her hair with such violence. Rise is already about to burst, her eyes are now close and her mouth is wide open, drooling saliva. She was now screaming like a porn star, her screams echoing in the whole room.
Naoto jumps a bit when she feels a movement beside her. She had almost forgotten Kanji at this point, so she give him a curious look. He was obviously rubbing his own bulge, even over his own clothes, like he doesn’t want to masturbate in front of everyone. I mean Naoto wasn’t really surprised, if she was a bit more bold she would have strips already and touch herself without shame like him. She decided to take the courage to touch her boyfriend’s legs slowly, which makes the poor man jump by surprise. He doesn't say anything and looks at her with a surprise look. She gives him a tender smile, her hand wandering on his clothed erection. Naoto wishes that Kanji will get the message that she want to get fucked right here and right now. He just stays frozen until he becomes a bit more calm before kissing her furiously. Naoto brings herself closer, she is now sitting on his legs. She reaches his pants and lowers the zipper without any warning. She reaches his erection, and starts to masturbate him slowly when kissing him with appetite. At this point Naoto actually forgets the other couple, and concentrates herself on the big task in front of her. She wants him right now, like nothing else matters. She loves him so much that she doesn't even think properly at this point, and this situation doesn't help to calm the heat inside her.
She broke the kiss, saliva still connecting them, and glued her eyes into him. She saw his face twitched, his moans when she was continuing to masturbate him, she was totally addicted. She wants to keep that image inside her head forever.
She finally unbuttons her corset, revealing her massive boobs. His eyes went south and he looked directly at them with wide eyes. He blushes, she can also hear him say ”damn” with a very low voice. She closes the distance, and she whispers sensually at a few centimeters of his face. “I want you right now Kanji, I can’t wait any longer.”
She can hear him shallow before a switch seems to unlock inside his head. His look becomes different, his eyes filled with usual confusion take place to a beast that finally has found his prey. He grabs her by the butt and brings the detective closer, she is now feeling his big erection between her legs. He devours her mouth again, when slowly rubbing his dick on the tiny clothing that was still separating them, making her even more wet. Naoto starts moaning inside her boyfriend’s mouth.
She likes the sudden confidence of her boyfriend, it was different but very welcome. She’s more used to a Kanji that's very careful with her, but probably the young man is actually taking notes from Yu and Rise. She likes that feral and bold version of him, that’s excited her even more than the usual Kanji.
He starts to massage her breast with both hands and kiss her in the neck, making her shivers. One of his hands wandered lower, his thumb slowly removing the bikini. She helps him and raises herself to be able to remove this part, at the same time Kanji removes his pants and boxer in one go with his free hand. Naoto is now feeling his dick rubbing dangerously close to her vagina and she suddenly grabs his wrist. “Wait…”
He gives her a surprised look, raising an eyebrow “Oh…” He finally comes to himself and feels a bit guilty. “Y-yeah protections. I’m sorry I was a bit… too into it ya know. « he said with a nervous laugh. Naoto smiles and caresses his cheek slowly. The couple suddenly heard a laugh behind them, so they turned their heads to see the other couple. "Come in the bed at least, it has enough space for all of us" says Rise amused.
Naoto suddenly remembers the other couple and her face becomes red, her eyes drop on the floor from the embarrassment. She still checks the other couple quickly. Yu is on his back and Rise is laying on him, looking at the other couple with attention. The gray-haired man looks exhausted, probably they’ve already finished. Naoto was so into her boyfriend that she actually totally missed their climax, she had no idea what they did after that. Kanji suddenly grabs her ass again and raises himself on his feet and carries her on the bed. He drops Naoto delicately on her back before joining her on top of her, towering her with his arms. He brings himself on his knees and takes this time to remove his shirt. He was now naked and Naoto couldn't stop looking at his body with hungry eyes. She definitely thinks that those amazing muscles are so attractive and she feels very lucky to have a boyfriend in such shape. Her eyes can’t also stop looking at his massive dick, still pretty hard and ready to do what she wants him to do.
Naoto removes the rest of her costume, wanting to feel all the skin of her lover against her during the intercourse. Kanji was about to leave her to get a condom, but Yu already thought about it. “Got your back” he says with a condom between his fingers before throwing the package near the other man.
Kanji looks at him and blushes, taking the package and raising himself on his knees to be able to have access to his hands to rip off the package. Naoto during this time turns her body to face the other way, belly on the bed, the young man gives her a confused look. "What are you doin’? “
Naoto gives him a shy look from her shoulder, she raises her butt a bit. “F-from this angle…please.” she said shyly.
Kanji’s eyebrows raise up, surprised by this demand “Didn’t know you were okay to do this from behind.” He replies when finishing putting the condom on.
Naoto frowns, a bit irritated. “I don’t care, I just want you inside my pussy right now…”. It make Rise giggles, Naoto give her a look at her confused. “What is making you laugh Rise?” She asks
“I didn’t know you were that naughty Naoto, but you guys are so cute.” She giggles before raising on her feet and giving a naughty look to Yu. “But I also want more fun, still up my love? “
Yu’s smile went wider "I’m always down and full of energy you know." He rises on his feet, during this time Rise places herself on her belly close to Naoto and smiles at her best friend. Yu joins Kanji not so long after, bringing another condom in his hand. He gives a glance to Kanji before looking at the two girls butt and licks his lips “Damn, not gonna lie, that's such a nice view from here!”
Rise giggles. Naoto blushes a bit before looking over her shoulder to look at her boyfriend. “Please…” The delinquent comes closer and attacks her neck and back with tender kisses. Naoto becomes more relaxed and signs. This time Kanji slowly buries his cock in his girlfriend's pussy, slowly spreading her inside and making her moan even more. She grabs the sheets and grins, she’s still not super used to the size difference (her being pretty small and him pretty huge). Kanji knows he still has to take his time, and starts kissing her neck to release the tension. He gives her the chance to adapt when every centimeter is slowly going inside her tight pussy.
During this time Yu also take the leads, dick in hand masturbating to get hard again. He puts the condom on and grabs his girlfriend’s ass. Rise giggles and wiggles her butt, he didn’t waste any time and buried his dick inside her in one go. She moans and Naoto gives her friend a surprise look. Obviously the detective is not super familiar with having another girl just beside her moaning. It takes her a bit by surprise, but when she feels the throbbing cock inside her she has other business to deal right now. Since Rise was already adapted, Yu didn’t waste more time and start to slam her inside in a certain pace. Rise meows, her mouth wide opens chanting how fun she’s having right now. "Ahhhh Yu, yes, harder!!”.
Naoto, who now feels better, looks at Kanji behind her. She didn’t have to talk, the tall man understood what he had to do. He steps back a bit to get enough distance and push in one go. Naoto moans loudly. Encouraged by her reaction, Kanji do it again and again. Naoto rises herself to stand on her elbow, suddenly gives a look to her boyfriend and grabs his arm, Kanji looks at her with a confused look. “What up?”
“Go fast, and harder.” she said almost desperately. Kanji nods and obeys. He buries his cock faster and rougher inside his girlfriend's pussy, smacking her inside with more force. "Ah yes like that… so good! Ah! ” moans Naoto, her eyes know the orbit and her tongue outside her mouth. Kanji starts to get more confident and smiles, knowing he’s doing a good job.
He gives a look beside and he starts to follow the same pattern as Yu. Naoto joins Rise pretty quickly and both are now screaming and moaning in unison. Naoto was very aroused by this new experience, she was stimulated and also having a good show in front of her. But right now she has trouble focusing on both and close her eyes overwhelmed by the sudden heat on her bottom part.
She feels a hand on top of hers, she opens her eyes to meet Rise’s ones. The idol smiles. "Ahhh, It feels so great right?" Naoto nods and smiles.
Wet skins was now echoing again in the bedroom. When Yu starts to pull Rise hair again, making her screaming from pleasure, Kanji hesitate. He definitely want to try this with Naoto, but he doesn’t knows if she’s going to like it. He looks at her but her face already was begging him to grab her hair and to fuck her inside like nothing matter. He finally grabs the detective hair, she let out a sound that he never thought she could make, like a porn star. He pulls her hair until her back reach his own belly and continue to fuck with more energy. He feels her inside become tight knowing well she was at her limit.
Rise suddenly grabs Naoto’s chin, forcing her to face the idol and kiss her without any warning. Naoto moans but deeper the kiss forcing her tongue inside the other girl's mouth. The guys were a bit surprised but giggled. "Girls having fun right?" laughs Yu when slightly changing his position to make the girls face each other. Rise uses her hand to grab the tiny girl and uses the other to stimulate her clitoris, Naoto moans and replicates the stimulation to the idol. The multiple stimulation was a lot for Naoto, she is not sure that she will keep this up for too long. Rise’s moans inside her own mouth also make her understand that the idol is also close to her climax. One more trust and both girls come in unison, arching her backs and screaming muffled by each other's mouth. Exhausted, Naoto breaks the kiss and takes a moment to breathe. This was the sexiest thing she has done in her life, her head was still bowling. She falls on the bed exhausted, her heart pounding like crazy. She need some rest so she closes her eyes, not really knowing what is happening next. She feels a presence that joins beside her, probably Kanji. He puts his big arms around her, he kisses her head and caresses her hair. "Are you okay?" He said with a bit of worry in his voice.
Naoto just smiles and nods. “ Amazing... “ She finally said in a small tired whisper. She can’t see her boyfriend but he was probably smiling, he brings her close to him in a warm hug. She also feels another presence far on the side of the bed. She can hear Rise giggles "Wow that was amazing! You are really good guys!"
Naoto opens her eyes and manages to sit. During this time Rise looks at Kanji, after crossing her arms with a concerned look on her face. "Wait Kanji, you didn’t come right?"
Kanji turns his body to give a look to the idol. "Nah, I don’t care, it was fun as hell. " Naoto sits and gives him a seductive look. "I guess I can take care of that little problem." She licks her lips.
Kanji jump suddenly, and blush furiously. "Ya not forced to do that…” he said.
Naoto nods and smiles at him.”I still need to practice this new knowledge on you my love, so I thought it would be the perfect time to try to blow you."
She licks her licks seductively when looking down at his dick, Kanji shallows hard. Naoto can hear Rise’s laugh and give her a look, she was smiling looking at the other couple "I definitely trained you well Naoto, you can do that girl!" She also notice Yu probably who was sleeping at her side, the poor man being drained.
Naoto focuses on her man. She pushes Kanji to make him lay on his back and she places herself on her boyfriend's legs. She looks at him with appetite before taking his length, which is still semi-hard. She has taken some mental note before from Rise so she starts mimicking it to her boyfriend. She starts to masturbate him slowly and smiles at him to see his reaction. Kanji blushes and puts his hand near his mouth to bite the back of it, this is what she wants to see. His dick becomes really hard and huge really quickly. She continues her oral attention this time with posing her lips on the tip, slowly licking the precum. She starts by teasing him until she takes him fully in her mouth making the man she loves so much moans from the pleasure. She suddenly feels a hand caressing her hair, encouraging her to continue. The taste was intriguing and seeing the flow in her mouth and the moans of her boyfriend was almost intoxicating. She felt even more motivated to finish, sucking this cock hard like she was starving to death. She can feel the grip on her hair becoming tighter. So she decides to focus on the tip and use her hand as a support. She gives a look at Kanji, he’s on the moon sweating and moaning. She won’t probably have to wait too long for his climax.
” Naoto… I’m… I’m about to cum." He said exhausted
Naoto just smiles and continues her attention with more determination. She doesn’t know why but she felt very proud to be able to procure such pleasure to the one she loves. Earring her name from his mouth during sex was also very rewarding. She continues sucking until she feels his muscle contract and his hip thrusts itself in her mouth. The precum was something at first but nothing prepared her for the sudden flow of sperm in her mouth. She does her best to take it all but fails, she removes her mouth and coughs, letting the rest fall on her boyfriend’s leg. She takes a moment to regain herself, still surprised by this sudden load.
"Ah… sorry Naoto…” said Kanji, feeling guilty.
Naoto smiles and shakes her head. "No worries, it was an interesting experience. I just didn’t expect you to be so generous with me." The make the young boy laugh.
Rise laughs too, and gives an amused look to the tiny girl. "You did great Naoto, but you still need a bit of practice." Naoto blushes before raising a hand to whip some of the substance from her face, she nods shyly. " Indeed, but you are a really good teacher Rise."
The idol giggles amused "I will give you more lessons next time, you will become a sex expert like me in no time!" She then sits next to her boyfriend who was smiling eyes closed, and she gives him a big comfort hug. Naoto also joins Kanji, which is almost sleeping right now, the poor man being completely drained. He gets the force to raise his head when he feels the small presence beside him. "Ya amazing, you know that?.” He said a bit dizzy from exhaustion.
Naoto laughs giving him a smile, she puts her head on his chest before closing her eyes. "I got a pretty good teacher, you know. Now I think I will have to do my homework with you more often."