The Interrogation of Aqua Hoshino

by LanceSennin

Miyako invites Aqua to sit down with her for a few questions, before it eventually turns into a full-blown interrogation session regarding the things she has noticed from him and the people who are close to him. What awaits him in this case? Is he innocent or is he guilty? There's only one way to find out! LEMONS. Aqua x Harem.

3. Drama in the Bedroom (Ruby)

Discord link: [discord . gg / 4y5QVPj]

Disclaimer: I don't own Oshi no Ko but if I did, there will be MAJOR CHANGES.

---

"A lot of things, but I'm not about to tell you all about it, Miyako-san."

Aqua couldn't help but roll his eyes in irritation. These accusations were only taking up a significant amount of their time, when they could be on their way to the movie shoot by now. What was she even accusing him of doing, anyway? Yeah, he was at her house, but why was she adamant on knowing what he did there? Did she suddenly decide that she would keep a closer eye on him or something?

"Seriously, we just hung out like how good friends would. We talked for a bit, watched a movie together, and ate some baked mac the whole time."

"And you're telling the truth that nothing else happened between you two?" Miyako pressed on, continuing to doubt her surrogate son's words until now.

"Nothing happened, Miyako-san. Why are you insisting that something else happened between us? Are you trying to prove a point or something?"

Miyako's lips pursed in a straight line. It wasn't unknown to her that Kana possessed romantic feelings for Aqua, and she actually thought that the two had grown closer considerably when the boy visited her home. She wouldn't have been surprised if Aqua revealed that they were dating now, but it truly seems like nothing important happened… unless he was truly lying about everything he has said so far.

"Fine, I'll believe you. For now, that is. I'm still not fully convinced that you're telling the truth, Aqua. I'll have to talk to Kana-chan so I can hear her side of the story."

Aqua raised an eyebrow at her. "Aren't you more concerned with the fact that there are people who actually know where Arima lives? If I were you, Miyako-san, I'd worry about that possibility more because of the dangers that it could bring to her and her family."

Miyako paused to think about that for a moment, before she slapped a hand to her forehead out of realization, and then frustration. She had never even thought of that, when the safety of the girls were supposed to be one of her top priorities. It took Aqua's words for her to even think about the big no-no in the photo of her son that was taken that day.

"Damn it, you're right."

"I'm starting to feel concerned, Miyako-san. You're choosing to believe the words of people on online sites without even talking to me first. Did I do something wrong for you to make these accusations?"

"Maybe you did," Miyako frowned at him again, her serious demeanor returning in an instant. "You're not off the hook just yet, young man. I still have plenty to talk to you about."

"Then, by all means, please tell me what I did wrong. I only hope this isn't a false accusation like before," Aqua leaned back against his chair and stared at the ceiling. He was starting to feel sleepy while talking to his surrogate mother about this whole thing, and this was the only way he could think of to remain awake.

Miyako narrowed her eyes. "It's not a false accusation at all, because it happened in this very house."

"What is it, exactly?"

"A week ago, I heard strange noises coming from your room late at night while I was passing by to get some water. It went on for the whole week for no good reason, and it all happened around the same time almost everyday. We were only fortunate that whatever's happening inside your bedroom isn't that loud, or you would have woken up the entire house. At worst, it would have woken up the neighbors."

Even with those words, Aqua remained unaffected. It's as if he was sure this had nothing to do with him at all. All he did was turn his gaze to her lazily, showing what he felt about this whole thing.

"Really?"

"I've already asked Ruby about it and while the noises don't seem to bother her, it's still a problem that has to be addressed. But before that, what were those noises from your room?" Miyako folded her arms across her chest and leaned over the table to give him a look of suspicion.

"I apologize, Miyako-san. I must have left the music app on my phone open before I went to sleep," Aqua sighed and bowed his head in apology. If this is all it takes to get the woman off his back, then he should just do it to get it over with. He really wanted to be done with this so they could leave already.

Miyako flashed a smirk. She finally had him this time.

"You seem to be getting terrible at lying, Aqua. Because the noises I've been hearing cannot be considered music in the slightest. I may have been unable to get a good grasp on what I heard, but I definitely heard someone saying 'Sensei' inside your room. There couldn't have been someone else inside there with you… right?"

"Of course there wasn't."

"I want you to admit it, then. You have been watching those kinds of videos, haven't you?" Miyako asked, her smirk widening in victory.

---

Ruby

With a mischievous smile on her face, Ruby tiptoed towards the couch where her brother was sitting. He was currently reading a manga from his little collection in his bedroom, looking engrossed within its pages and completely unaware of what was happening around him. He had no idea that Ruby was slowly creeping up on him from behind, who was doing her best to keep herself from giggling out loud.

"Onii-chan!" she exclaimed, wrapping her arms around his neck from behind as she pressed the side of her face against his. She even kissed his cheek lovingly, showing more affection than what is considered 'normal' for a younger sister to her older brother.

"Hey, Ruby," he spoke in a neutral tone, as if this was a scenario that he was completely used to by now.

"Hehe… are you reading one of your mangas again?" she asked, noticing that it was one of those psychological thriller ones that needed a lot of thinking and brainstorming to understand. She didn't really know why he liked this particular genre but eh, her brother has his tastes.

"The series is said to be ending soon, so I'm reading a bit of it to catch up before the final chapter gets announced," he answered calmly before closing the book, as he turned slightly to look at her. "Did you need something from me, Ruby?"

The smile that was on Ruby's face grew wider. "Does this mean you're free right now?"

Aqua shrugged. "I suppose I have a few hours before I talk with Director Gotanda about some final touches regarding the script and flow of the movie. Why?"

"Then… do you want to do something with me instead?" she asked, half-nervous and half-excited but very eager for some fun.

Aqua stared at her for a few moments, considering her words in his mind. He already knew what she was talking about and what she wanted, which was already quite tempting by just thinking about it. However, considering everything else that's happening right now, the only answer he could give her wasn't what she was hoping for.

"I'm not really in the mood for it, Ruby. I'm sorry," he replied while shaking his head.

The smile on Ruby's face fell, and she threw him a big pout while pulling on his arm like a needy sibling. "Come on, you've been focusing too much on making the movie that you barely have enough time for yourself anymore! I think you need to release some stress, Onii-chan."

"Ruby, you know why I need this movie to succeed."

She then stood in front of him, with her hands on her hips in a scolding manner. "I know, but it shouldn't be at the cost of risking it all. I'm not really telling you to stop, onii-chan. Maybe take a break once in a while? Maybe have fun with someone, I don't know…" she pointed out, making sure to wiggle her eyebrows suggestively once she said 'someone', sending a clear message to her twin using a bit of body language.

"I'll think about it at least," he sent her a grateful nod and stood up from the couch to grab a snack from the fridge, but not before sending some last words for his sister. "Thank you for the concern, Ruby."

With that response from her brother, Ruby knew that this conversation was over. Of course, she felt disappointed and upset that she didn't get the answer she wanted from him, but she hid those feelings for now. Instead, she put on a bright smile and giggled happily.

"You know I'm always looking out for you, onii-chan. I love you!"

"Love you too."

As Aqua left to head for the kitchen in search of something to eat, Ruby sighed to herself and began a slow trudge back to her room. She wanted to complain and be angry with her brother for ignoring her and not caring about her feelings despite the current state of their relationship, but she held herself back. Ruby knew that Aqua wanted the upcoming movie about their mother to accomplish a lot of things, and one of them included revenge against Ai's killer.

There's a reason why he went as far as to make it public knowledge that Ai had a couple of kids, which led to the rift in their relationship. Now that Ruby was aware of Aqua's intentions, she didn't like that he was shouldering all this burden on himself. If she could, she'd take some of that burden so he wouldn't be alone but she also knew that he wouldn't let that happen.

At the very least, he didn't hide things from her anymore. She knew what he was up to this time around, and he wasn't keeping secrets from her anymore. As much as she hated not being a bystander who's unable to help her brother in any way, being kept in the dark is something she hated more.

After reaching her room, the blonde idol let herself fall on the bed, back-first and her arms wide. As she stared up at the ceiling, Ruby began to think about what she can do to help her brother. This was more than just having 'fun' with him now, it's about giving him a much-needed break from all the planning and preparing that he's been doing for the movie.

Why?

Because Hoshino Ruby was a simple girl.

And there were three things that she loved more than anything else.

Her first love Amamiya Goro, who was a doctor that took care of her in her past life (and was considerably older than her), her mother Hoshino Ai, known to many as Ai of B-Komachi, and her sibling Hoshino Aqua, who was known to other people as her twin brother.

She loved her family dearly and thought of the world to them, so when Ai was murdered during that fateful day, she realized that the happy life she had been living until that point was only an illusion. An illusion that was shattered by the cold truth of reality.

The reality that no matter how much Ai smiled and acted like a beacon of happiness for people, she was still a normal human like everyone

It wasn't just Ai too. Until recently, Ruby could have lost her brother as well. While she was aware that the two of them lived different lives in the past, they were born as siblings so she loved him as family too. Her love for him only intensified when their mother died, because he was the only person she had left. Her old life was gone, her mother was gone, but he was still there.

Sure, Miyako offered herself to stand as their surrogate mother, but it could never replace the familial bond she had with Ai. Because of this, she could not be any more glad that her brother was here among the living.

To make things worse, she had also discovered the corpse of her beloved doctor, the one who had promised her that he would be her number one fan when she becomes an idol. The one who took care of her back then. The one who kept her happy while she was living the remainder of her old life in that hospital…

…the same doctor who was now nothing more than a cold pile of bones.

With two of the people she loved now gone, she clung on to Aqua even more. He was the only one she had left, and she didn't want him gone too. She didn't want to lose the last remaining person whom she saw as her family.

Unfortunately, life isn't filled with happy endings. Not in Ruby's case, at least.

There had been a misunderstanding between her and Aqua that occurred not too long ago, and Ruby didn't really want to think about it anymore. It was a time when a wedge was driven into her relationship with Aqua, and she hated that it happened. She loved her brother, but she was also angry with him for what he did not too long ago. Ruby felt so conflicted about what she thought of Aqua that she stayed away from him as much as possible, unable to find it in her to even look at her brother's face…

However, as much as she hated that span of time for how it almost ruined a seemingly unbreakable familial bond, Ruby still felt thankful for it somewhat… only because it led to the revelation of the twins' biggest secret to each other: the identity of who they were in their past life.

Not even a month had passed, and she could still remember that day clearly, when she was crying her eyes out on the bed. Sarina Tendouji felt heartbroken after finding out that her parents had completely moved on from her death over a decade ago, to the point that they act as if she had never existed. It was too much for the reincarnated girl to take, and once she went home, her eyes became waterfalls.

She didn't know when exactly, but Aqua had returned home and he had seen her crying, which prompted him to move in and comfort her. When she realized that her brother was there, she quickly brushed him off and reasserted that she didn't want anything to do with him anymore, going as far as to say that they were never family in the first place. They were just strangers who happened to have been born as twins.

Deep down, it hurt Ruby to even get those words out. It hurt her to say such things to the only family member that she had left. It hurt her to say those words to the only person she loved that was still alive. Her sensei was gone, and Ai was gone.

All she wanted to do was make their murderer pay for what he did. Whoever that person was, she wouldn't allow him to live freely while his sins go unnoticed. She would make him regret that he was ever born… she would do it for her sensei and Ai, so they can rest in peace. It was the only thing she could do for them now that they were gone.

But that was when Aqua uttered one particular name: Sarina-chan.

Ruby froze when she heard that name. All other thoughts exited her mind at that point, while her full attention was directed to her brother as he pleaded for her not to give in to vengeance, to the point that he began to tear up.

There's only one person who could have known that name. Only one person who would refer to her in that manner. Only one person would know about her dream and the events of her past life…

"So you've been keeping this for me, Sarina-chan?"

…and that was when Ruby realized that what she had been looking for all her life, was beside her the whole time. The person whom she had thought was nothing more than a corpse by now, was her brother all this time.

She immediately threw herself towards Aqua, wrapping her arms around him in a hug. She tightened her grip right away, fearing that he might disappear again if she let go of him. Aqua only patted her back as she sobbed into his chest, while she went on about how she looked and waited for him all this time, but never realizing that he was right by her side.

And thus, the actor who was once a doctor and the idol who was once a sickly patient were finally reunited… after what seemed like an impossible endeavor.

A lone tear fell from Ruby's eye as she remembered those events, which she quickly wiped off. While the events that led to her finding out that Aqua was actually Amamiya Goro were less than pleasant, she didn't know if her reunion with her beloved sensei would have happened if Aqua didn't reveal that Ai was their mother. She didn't know if things would have ended up the same if she didn't get angry with her brother for what he did. For that, one could say that things turned out for the better.

Besides, the aftermath of that day made everything worth it. All the angst, sorrow, tears, and tragedy up until that point… it was all worth it for what it led to.

Right after learning that Aqua was Amamiya Goro in his past life, Ruby's attitude did a complete 180; she went from being unable to even look at him in the eye without being angry, to hugging and being close to him at almost every chance she gets. If that's not enough, she wasn't even this clingy before, when they still had no knowledge of each other's identities.

And if that's not crazy enough, the girl brought up the 'promise' that Aqua made to her in their past lives, which involved marrying her when she turned sixteen.

Well, technically, he stated that he would think about it… although the 'promise' wasn't exactly the problem. It's the fact that Ruby began to channel her feelings for him as Sarina, even though he wasn't the doctor she knew anymore. She didn't even care that they were now siblings and shared the same blood because according to her: "Sensei is Sensei. I don't care if he's my brother."

And so began another problem for Aqua, this time in the form of Ruby and her feelings for him that were downright incestuous… at least that's what he thought. Ruby didn't really give a damn whether it was incest or seen as disgusting by other people, so she had no problem being overly affectionate with Aqua, more than how a normal sister would act towards her brother.

Between the surprise hugs, pulling on his arms, sudden glomps out of nowhere, invitations to join her in the bathroom, and loving kisses on the cheek, they all served to make his daily life more difficult to navigate through. Every person had a breaking point, and while Aqua was a fairly calm person who can be incredibly patient, he also had a limit.

With Ruby being increasingly clingier and more affectionate every passing day, Aqua didn't really have a choice but to accept all of it without complaints. If he did, it would only make Ruby sad and knowing who she was now, he didn't want to make her upset by any means. He still tried to talk her into respecting his personal space, although he doubted that she actually listened to him. If anything, it made her more determined to get him to look her way.

It reached the point where Aqua simply gave in and he made a move on his own. He realized that Ruby had no intention of stopping anytime soon, so in order to save them from any awkward scenarios that could happen in the future, he went one step further than anything his sister has done so far.

On that day, after she was done taking an evening shower, Ruby found herself being pinned to the wall by Aqua, who looked as if he was a man on a mission. Before she could say anything else, her brother leaned down and pressed his lips against hers, sealing his actions with a clear sign of his feelings.

It's what officially began their relationship as a forbidden couple whom no one knew about. Aqua was very adamant about keeping it hidden from everyone else, as it was his only condition when they talked about what they'll do from now on, while Ruby actually had no problem even if all the people they knew had knowledge of their relationship. She understood the need to keep it secret, though, and she respected Aqua enough to give him what he wanted.

Everything changed between them. From normal hugs, the usual clinginess from Ruby, and the kisses on the cheek, all of it had intensified tenfold. Ruby would hug her brother as if her life had depended on it, and she would even tease Aqua sometimes by grinding herself against him. She was clingier than before, going so far as to sleep in the same bed as him and spoon him for the whole night. In fact, the only reason why she hasn't clung on to him in public was her promise to him about keeping their relationship a secret. Lastly, Ruby would mostly kiss him on the lips nowadays, enjoying every moment she had with the person she loved. That didn't mean she stopped kissing him on the cheek though, that's the only thing she could do in public without anyone being suspicious of their relationship.

It even reached the point where the twins lost all sense of what was around them one night, leading to them shedding their clothes and indulging in the pleasures of exploring each other's bodies.

…yes. Despite all the possible implications and problems of their actions, the two siblings have actually gone past their boundaries and performed the forbidden act of intercourse.

Ruby grabbed her pillow and giggled into the soft cotton while remembering that day. She had never seen Aqua look so embarrassed before. He was normally stoic and rarely showed any emotion, yet he was clearly nervous about having sex with her. She teased him about it for the next few days, bringing up how he must have never done the deed in his old life, which would explain why he was nervous. However, he denied her claim and stated that he wasn't a virgin in his past life. Instead, he was nervous about doing the act with his sister, who bore the same blood as him.

As a former doctor in his old life, he was aware of the possible risks of inbreeding if Ruby ever ends up pregnant and he had just done the forbidden act with his own sibling… or something along those lines. Ruby didn't really care, because all she cared about was being with him.

The problem now is that it's been weeks since they've last done anything. While he would show some affection here and there through headpats and kisses which still made her happy, they haven't had sex again since the third time they've done it.

Now, this wouldn't really be an issue if Aqua was just busy. She was on the same boat, after all. However, Ruby knew that her brother wasn't just busy. He was spending a considerable amount of his time on this movie that he barely had any time for himself. Whenever Ruby would see him alone, he was either thinking about how to make the movie more appealing, moves that they can utilize to promote it when it comes out, or pretty much anything that has something to do with the film.

Ruby frowned slightly. She didn't like seeing her brother not being able to enjoy some time for himself. After learning about what he had been planning ever since their mother died, she realized that he had spent the majority of his life thus far focusing on revenge, she hated it. And now that she knew who Aqua really was, she was even more displeased he was like this.

"Onii-chan's been stressing himself out lately… and it's not just this time. He's been doing this for a long time," she thought. Ruby didn't like him being this way, although she understood his reasons for why. "I mean, I don't blame him for being this way, but he shouldn't be thinking about revenge all the time!"

The girl heaved a deep sigh. Okay, it wasn't just that, she had also missed him being more affectionate towards her. During the start of their relationship, Aqua was more responsive to her actions and did the same to her more often. She missed that side of her brother and she wanted it back. She wanted his love, she wanted his affection, she wanted his eyes on her, and she wanted his touch.

Ruby wanted him to be all over her again… just like the past few times that they have done it.

"Okay, I do want to do it again with Sensei… it's been a while since we've done it and I already miss his touch…" she ranted in her mind.

Unaware of her own actions, her hand had already traveled down to her lower regions, until they reached the fabric of her shorts. The material was thin, and she shivered at her own touch. This particular feeling was exactly what she wanted from Aqua and without him around, all she could do was try to make it happen all on her own.

Ruby closed her eyes and pressed down even more, drawing out a moan from her. Both her shorts and panties were thin enough that she could feel her fingers directly, as the growing feeling in her loins began to take over her body. The more her fingers touched her nether regions, the more she wanted to continue.

After a minute of doing the same thing over and over, Ruby felt that a small part of her shorts was now wet and along with it, her panties were drenched as well. This made her open her eyes and sit up, before taking a good look at her lower garments. This made her groan and pout, before pointing the blame on the only person she could think of right now.

"Ugh… great, now I'm horny. This is all your fault, Sensei."

Just fucking fantastic. She went too deep into her own fantasies that she couldn't help but masturbate to the thought of Aqua and her doing the forbidden act of coupling again. Now she couldn't get it out of her mind, and she could tell that this was going to bother her until she gets a release of some sort…

Sighing to herself, Ruby let herself fall back on the bed and raised her shirt, revealing her ample breasts that were covered by a pink lace bra. She then pulled her lower garments down, getting rid of her shorts and panties, causing her delectable and wet pussy to come into view.

Not wanting to waste time, Ruby let her right hand descend to her lower regions again. Her fingers quickly found her clit, earning another moan from her, as she proceeded to rub for all it's worth. Meanwhile, her free hand went up to her breast, squeezing and kneading the huge mound in her grasp.

Ruby gasped in surprise at how good it felt, so she simply continued in her actions and added a few things to it. Eventually, she began stimulating her nipple, rolling it around with her thumb which elicited a louder moan this time. If she's not careful with her voice, she could end up getting Aqua's attention at this rate…

"Hyaaahhnn~ if only onii-chan could do this to me again…"

Her work downstairs improved as well. From her clit, Ruby descended even more until her fingers found her slit, which was already wet with her juices. She rubbed up and down over and over, slowly driving her insane with anticipation and arousal.

"Haaaahhhh~ Onii-chan… I need you inside me already~!"

With those words, Ruby pushed two digits inside, imagining them as Aqua's throbbing erection that was intending to invade her insides.

The result? A loud scream that was likely heard all throughout the house.

But Ruby didn't really care. As soon as her fingers were inside, she began moving in and out at a steady pace and continued her quest for pleasure, all while imagining that Aqua was here and he's doing all these things to her.

The door was wide open, so there's a possibility that Aqua will see her in this state, touching herself and playing with her body, if he walks past her room. It's still too early for Miyako to be home, so it was only her and her brother at home right now. He could be at the door at any moment, and he'd see her masturbating…

How exciting things would be if that actually happened… and if he'd do something about it.

"Ahhhh~ onii-chan… onii-chaaaaannnn~"

Ruby arched her back off the bed, feeling waves of pleasure zooming all over her body from her actions. Her free hand didn't stop playing with her own breast, while her fingers worked to make her senses go crazy; moving in and out of her pussy at a faster pace.

Her body was sweating quickly, while some of her juices squirted out of her cunt every time her fingers penetrated her twat. She continued to imagine that it was her brother who's doing this and making her feel good, but Ruby knew to herself that this could never replace the real deal.

Nonetheless, her actions were able to give her what she wanted, and that was a satisfying orgasm.

The girl moaned louder when she felt her climax approaching, prompting her to put even more effort into her movements. She worked to please her body with her hands and at the same time, exhaustion was starting to settle in, but Ruby wasn't going to let that get in the way of her release.

"Onii-chaaaannn~ I'm going to cuuummm~"

Ruby threw her head back as her orgasm hit, while keeping her fingers inside. Her juices squirted out of her delicious cunt and stained the bedsheets, all while letting out her loudest moan yet. Her climax lasted for about half a minute, before her body dropped back down on the bed as she panted in exhaustion.

Despite feeling a sense of satisfaction from achieving her climax, Ruby felt that it wasn't enough. Doing this by herself is nothing compared to when she's with Aqua, simply because she loved being near him.

"Even if I do this everyday, it won't matter. I want Sensei by my side, making me feel good, telling me that I'm loved, and encouraging me whenever I need it the most. I want to do it with him, instead of trying to distract myself with this whole thing…"

Ruby sighed in defeat as she fixed her clothes, before getting a new set of bedsheets for her mattress. She didn't want to go to sleep with a wet part on her bed.

"If only I can get him to pay attention to me and nothing else, things would be different. Onii-chan's just been too focused on the movie to even think of something else, really. If he wasn't, then his eyes would still be on me…"

And then, all of a sudden, a bright idea struck her mind. That last statement she uttered may just be what she needed to get Aqua to finally pay attention to her. All she would need to do is come up with something that would definitely get him to look at her without any sort of difficulty.

"What if I do 'that' then? Would it get his attention? I mean, of course it would, but would it get him to make a move? He's pretty hard to break, honestly…" she asked herself, wondering if this would even be successful, before she shrugged. "Well, it's not like I have any other bright ideas. Plus, I have nothing to lose. If anything, I'll just be angry with him if he keeps on ignoring me. He'll have no choice but to pay attention to me, then!"

Smiling at her own plan, Ruby took her phone from the nearby dresser and started to do a little searching. If she was going to get her idiot of a brother to notice her, then she would have to go all out.

Aqua would be totally floored if he knew what was waiting for him…

Several days later, after cooperating with Director Gotanda about the setpieces and additional props that were required for the film, the blonde actor headed home feeling more exhausted than usual. There were a lot of things that needed to be done today but fortunately, he was able to pull through. In three days tops, they'll finally be able to begin shooting and the making of the film would officially start.

"I'm home," he called out to whoever was inside as he stepped inside and closed the door.

"Welcome home Sensei, nya~"

Just from hearing the sultry tone in those words, Aqua ignored the exhaustion he felt as his mind registered that statement. There was no doubt that his sister was the one who spoke, but why is she using that tone? And what the hell is with that sound at the end? Is she trying to impersonate a cat? For what reason, though?

Deciding to ask Ruby about what she's trying to pull off with that voice and cat noise, he turned around so he could talk to her. The only problem is… she wasn't exactly 'standing' in front of him.

Instead, Ruby was on all fours before him… and she was wearing very little.

She was only wearing a pair of sexy yellow lingerie that barely covered her chest and her most sacred part. Aside from that, she wasn't wearing any other type of clothing, only several accessories that only served to enhance her appeal, nothing more.

A pair of furry cat ears that were attached to a hairband, a black collar with a small bell that was attached to it, two pairs of mittens that resembled a cat's paws for her hands and feet, and a yellow tail hanging off her backside.

All in all, Ruby was dressed like a cat and was acting like one… for some reason. If this is her way of getting into her character as their mother, then there's definitely something wrong here. However, it's starting to feel more like an elaborate prank intended for him by his sister.

"Ruby?" he asked, raising an eyebrow at the blonde idol.

"Yes, yes, it's me! I'm glad you recognize me, nya~" she answered happily, crawling close to his legs before nuzzling her face against them.

Aqua tensed, as he wasn't expecting that from her, but he was able to stay composed and keep a straight face.

"What the hell are you doing, Ruby?"

Ruby merely smiled, clearly having fun with her role. "What does it look like, Sensei? I'm showing how much I love you, nya~" she purred while separating from his legs.

"You know that's not what I mean, Ruby. What's gotten into you? Why are you acting like a cat right now?" Aqua pointed out while taking a closer look at his sister and her outfit. Unfortunately, the sight of her in this particular costume was honestly too much for him, forcing him to look away before his junior down there could rise. "And you're even dressed like a cat… what for?"

Ruby noticed how Aqua turned his head away after looking at her, and she quickly took advantage of that opening. Oh, the effect she had on her brother… it's so cute to see.

"Hehe… are you embarrassed that I'm like this? Do I have your attention now, nya~?" she giggled, licking her 'paw' a few times before rubbing it on her face, mimicking the actions of a real cat.

Aqua sighed and shook his head. "I'm not in the mood for jokes, Ruby…"

"Nyahaha, I see you're very tired, sensei~" his sister smirked, before nudging her head in the direction of the couch. "Why don't you sit down on the couch and rest? I'm sure I can do something to make you relax, nya~"

As she uttered those words, Ruby turned around and pushed her ass up in the air, before looking back at her brother seductively. She wiggled her bottom in an alluring manner, her tail wagging from side to side like a pendulum.

The sight of the beautiful idol's shaking ass made Aqua's eyes widen, his gaze glued to it like a moth to a flame. Ruby's panties were already skimpy enough to barely leave anything to his imagination, and the tail she had only served to further drive his hormones wild. This was evident with the bulge that suddenly appeared in his pants.

And yet, Aqua still tried his best to put on a calm look. Ruby was making him work for it, though.

"Ruby, I'm serious. I'm quite sure this has nothing to do with getting into your role as Ai, unless you actually think she's a cat but then I'd tell you to stop joking around."

"Come on, sensei~" Ruby winked at him playfully. She even reached behind and spread her ass cheeks wide with her paws, inviting her brother to give in to his primal urges. "Don't I look cute and sexy in this outfit, nya~?"

Aqua took a deep breath to steel himself, before giving her his response. "I'll answer your question once you answer mine. Now tell me what's going on."

Upon hearing those words, the sultry look on her face fell and she halted in her actions almost immediately. And that's not all. Her entire demeanor did a paradigm shift; Ruby donned a passive look that would be normally seen from Aqua before she raised herself from the floor and turned around to face him, now kneeling on her knees with her hands on her lap. It's as if she wasn't trying to seduce him just now.

"...honestly, this is all your fault, onii-chan."

"My fault?" asked Aqua cluelessly, puzzled with his sister's behavior.

"Don't even try to deny it," the girl said firmly as her eyes turned downcast. "That day, when you finally accepted my feelings, I was really happy. It felt like I was the happiest girl in the world that day, because one of my biggest wishes came true. Even if we're siblings now, you still decided to give us a chance. Even though you were uncomfortable with it, you still accepted my feelings. For the first time since I became an idol like Mama, I was happy."

Aqua watched as the expression on Ruby's face turned sadder and sadder, while all he could do was stand there and listen to her. He was tempted to say something as a response, but he also knew that doing so might only make her angry. Aqua could tell that she wasn't done yet.

"We even went past a line that we weren't supposed to cross, and everything was perfect to me. Everything was just right. Even though Mama's now gone, you were still here. Even after I saw Sensei's c-corpse, you were actually here the whole time. You've always been there and… hearing you say that you love me makes me happy every time…" Ruby continued to explain, her face being filled with more and more emotion as she spoke.

The young man sighed and knelt down so he was at eye-level with her. "I do love you, Ruby. Is that what this is about?" he asked in a gentle tone.

"But now… it feels like you just forgot about all of it. It feels like you forgot about me…" Ruby mumbled, ignoring his question just now.

"What?" Aqua sputtered, appalled that Ruby would insinuate such a thing or even think about it. He quickly placed his hands on her shoulders and shook her slightly, as though he wanted her to snap out of a trance. "Don't say that. That's not true at all. I haven't forgotten you, Ruby. I would never do that."

"Maybe you haven't. But it feels like you have, onii-chan…" she smiled sadly, raising her head to look at him for a moment before she became despondent again. "Ever since you started helping Director Gotanda with this movie personally, you barely have enough time for me or for yourself. It hurts me that you keep on tiring yourself for this, you know? I know you said that this is important because you want to avenge Mama, but what about me? What about us? Am I… not important to you, onii-chan?"

That question almost made Aqua snap. He had no idea why Ruby was being like this, thinking such depressing things. He wasn't like that, right? Sure, he had been busy lately because of his involvement in the movie about Ai, but he always made sure to give his sister attention whenever she wanted it. He couldn't have been ignoring her…

"Don't say such nonsense. Of course you're important to me. You're the most important person in the world to me, Ruby. Don't ever say that again, okay?" he pressed on, squeezing her shoulders gently to show that he was here with her and he wasn't going anywhere.

"Lately, it doesn't feel like I am. You've been too busy with the movie to even spend time with me, you know? I've been trying to get you to notice me for days, but you keep on saying that you're busy with this whole thing…" A lone tear rolled down her cheek as"Just be honest with me, onii-chan. If this movie is that important to you, I'll stop. I won't try to get your attention anymore. Maybe I'm being selfish about this…"

That was the final straw for Aqua. He was still confused about why Ruby is so upset with him, but that doesn't matter now. Of all the things that he couldn't bear seeing — especially after knowing who she really is — the sight of Ruby being completely helpless and defeated was something he can't allow to happen…

…never again would he allow it to happen.

Gritting his teeth, Aqua grabbed her chin gently and made her look up to face him. "No. Don't say that. This movie is important to avenge Ai, but it could never replace you, Ruby. And you're not the selfish one here, so don't you dare think that you are. I'm the one who's selfish, okay? Not you. Don't ever talk about yourself again in that way."

"Onii-chan…" she mumbled, her eyes becoming emotional once again.

"I've been a horrible brother and boyfriend to you lately, haven't I?" Aqua chuckled sarcastically, before bowing his head in apology. "I'm sorry, Ruby. It was never my intention to ignore you and make you sad, but I acknowledge that it's my fault, nonetheless. Whether it was intentional or not, I was still wrong because of my selfishness. Until now, I still want to avenge Ai. I can't let go of this desire, no matter how much I want to. As long as the one responsible for Ai's murder continues to live, I can't stand by and do nothing."

As Aqua finished his apology, the sad look on Ruby's face had disappeared and was slowly replaced by a growing smile. She then snaked her arms around her brother and hugged him close, which surprised him because of her sudden action as well as the fact that she was only wearing yellow lingerie as her clothing at the moment.

"You're not a horrible brother, onii-chan. And you're not a horrible boyfriend, either. I know how much you want to avenge Mama, and I know how much this movie will help you. I understand why you're working hard for it, but you should take a break too," she said to him as a reminder. "You've been thinking of revenge all this time that you kind of forgot that you have me with you. I get why you don't want me involved in this, but I still want to help… even if it's just to take care of you when you're tired or when you feel overwhelmed."

"Perhaps I did forget that I can lean on you too," Aqua shook his head in disappointment, which was directed to himself. "I probably don't deserve it, but can you forgive your idiotic brother for his wrongdoings?"

Ruby pulled away from the hug as she began to smile once more. "It's okay. I forgive you, onii-chan."

"I will never ignore you or brush you off again, Ruby. I promise," Aqua reached out to cup her cheek, stroking her skin gently. His touch made the girl feel warm inside, and she wanted more of it. "All I ask from you is that you never change who you are. Never change yourself for anyone, not even me. If you feel that I'm brushing you off again, don't think that you're doing something wrong. Call me out on it instead. I admit that I can be an idiot sometimes and I might not be able to understand what you want, so I'll count on you to give me a few choice of words if it happens."

"Sometimes?" the girl asked in an amused tone, placing her hand on top of his.

"Okay, all the time…" he shrugged helplessly in defeat, earning a chuckle from his sister. "My point is, you complete me, Ruby. Without you, I don't think I'll be able to keep myself together. I don't know what I'd do if you're not here. It would be like how I felt when you died on that hospital bed, but way worse. I might even kill myself because I wouldn't know what to do."

"Sensei…" she tried to say something to argue against those harsh words, but Aqua quickly raised his hand and prevented her from speaking up.

"You may not be Sarina-chan anymore, but I can see her in you, Ruby. Because of that, you're important to me. More important than anything else in the world. Without you… I'm nothing. Without you… I have nothing left—"

He was suddenly cut off when Ruby pressed a finger against his lips, stopping him from saying anything else. When he turned his attention back to his sister, she only gave him a smile before kissing his cheek sweetly.

"Let's just move on from it, okay? Besides, I know how you can make it up to me~"

In an instant, the tone in the girl's voice changed once again. The seductive voice she used earlier had returned, and her expression changed along with it as well. She wrapped her arms slowly around his neck before moving closer to him, and Aqua could tell where this was heading.

"Just say the word, Ruby…" he spoke in a soft tone, reaching up with his hands to hold her face and bring her towards him. The two locked gazes, and it seemed as if everything came to a halt.

"Kiss me, onii-chan."

With those words, Aqua leaned in and closed the distance between them and pressed his lips against Ruby's, who was all too eager to accept the kiss from her older brother. She wasted no time opening her mouth while deep in their lip contact, allowing Aqua to push his tongue inside which she welcomed happily. Her tongue met his when Aqua goaded her into a little war within the liplock, and it caused them both to moan.

Although she was the one who's eager and excited for this, Ruby surrendered herself to Aqua as he took control of the kiss. His tongue explored her mouth freely and took its time to make this makeout session more intense. On the other hand, the girl tried to return the gesture by meeting his tongue with her own, albeit weakly so she wouldn't break the flow.

Despite this not being the first time that they have joined lips, it still felt as euphoric as ever to kiss Aqua. The sensation brought by this alone was already driving her senses insane, and she wanted her brother to do more to her. It's been some time since they've done this together that Ruby just wanted to lie down and let Aqua do as he pleased.

Ever since their first time having sex, the girl liked it when her brother would take the lead and make her feel like she was in heaven. He was so good that it should be a crime, but she shouldn't really be surprised. He had done this before, after all.

Oh, she made a really big mistake by even assuming that Goro was a virgin before he died… because he definitely wasn't. He knew what to do and did it well. Aqua's efforts to make her feel amazing and the experience he had in this proved her wrong, and she had no problem giving in to her primal urges every time she would feel his touch.

Ruby moaned louder into the kiss when Aqua's hands touched her back, before they slowly traveled down to her panty-clad butt. Aqua squeezed the soft flesh in his grasp, eliciting another cry of pleasure from his sister as his hands continued on their journey, until they reached her thighs.

"Your body is perfect, Ruby. Have I ever told you that you're more beautiful than any other girl I've met? That includes Ai, by the way," Aqua whispered, continuing to kiss his sister deeply while squeezing her delectable thighs.

"Aahhnn~ thank you, onii-chan… mmm…" she beamed in happiness at his compliment. Whether it's within the bedroom or outside, Aqua would always say nice things about her and in turn, Ruby would feel her insides becoming all fuzzy and warm every time.

She whimpered in disappointment when Aqua pulled away from the liplock, only to yelp in surprise and ecstasy when he immediately moved in to attack her neck. Planting short but sweet butterfly kisses on her skin, Aqua left his mark on her skin but not enough to create anything visible that could be noticed by anyone.

While she was enjoying the attention from her brother as she always did, a sudden realization then hit Ruby regarding their current situation.

Just like the past two times that they've made love, Aqua was the one who took the lead and was working to push her to an orgasm, when one of the reasons why she did this in the first place was to give him a break from his responsibilities. This isn't how it's supposed to go… her brother's been working hard without getting even a little amount of free time for himself… she had to return the favor somehow!

"I'm doing this all wrong. Onii-chan shouldn't be the one doing all the work," Ruby reminded herself as she quickly thought of something she could do for her brother where he doesn't have to do anything at all.

Taking a deep breath, Ruby held her brother's shoulders before pushing him off her gently. This left Aqua confused, so he looked up at Ruby whilst raising an eyebrow. Was he going too fast for her this time around?

"Onii-chan… I… would like to do something for you…" she smiled shyly.

"Of course, Ruby. What is it?"

He only gave Ruby a smile as he waited for her to do something, but that was when she took him by surprise. His eyes widened as his sister threw herself at him, pushing him to the floor and almost hitting his head in the process.

As the young man laid there on the floor, Ruby made herself comfortable on top of him before putting on her best impression of a naughty cat who's eager to have fun with her master. Her hands on either side of his head, her legs by his hips, and her scantily-clad body hovering above.

"You're feeling tired, right, onii-chan? Let your adorable kitten take care of you, nya~"

Upon hearing those words, Aqua quickly realized what she was doing and decided to play along. "You're really committed to this, huh? I don't mind being taken care of, but I do wonder why you chose a cat, Ruby. I never took you for a cat person."

The girl smirked. "Well, I like cats, that's all. And because as a cat, I can do this, nya~"

With that, Ruby descended and leaned into his neck, before she began to lick Aqua's skin in a slow and sensual manner. Aqua tensed at her action, which also sent goosebumps throughout his body but he kind of liked the feeling. However, because of their position, Ruby's hair was all over Aqua's face and it made him slightly uncomfortable… not in a bad way, but it was enough to get his attention.

"Your hair, it's tickling me. Can you get it off my face, Ruby?" he asked his sister. He would do it himself, but Aqua didn't want to ruin things for Ruby while she's trying to return the favor to him.

Ruby's smirk widened, as she made no move to do as he asked. Instead, she was amused at his reaction. "Really~? How about if I do this, nya~"

She continued to lick Aqua's neck like an affectionate pet, this time putting a little more intensity in her actions. This resulted in her tongue going places while at the same time, Ruby moved her head to follow her actions. As a result, more of her hair got on his face and her cat ears even forced her brother to close his eyes so he wouldn't be poked by them in any way.

"Pfft—!" Aqua snorted, the feeling of his sister's hair tickling him to the point that he could barely hold in his laughter. He was able to stay strong and keep himself from letting it out, though. "Whatever it is you want to do, Ruby, can you just get on with it? We're only wasting time if we're not going to do anything. Do you want Miyako-san to see us here in front of the door, doing questionable things on the floor?"

"Alright, I'll stop… nyahahaha~" Ruby giggled for a few moments before moving away from Aqua's neck. She then positioned herself on his hips, where she immediately felt a huge bulge on her brother's pants, causing her to throw Aqua a sexy look. "Ooooh~ I wonder what's this hard thing that's under me, nyaaa~"

As she spoke, the sexy idol began to move her hips back and forth, grinding her panty-clad crotch against Aqua's raging erection that was inside his pants. This drew a loud moan of pleasure from both teens, especially Aqua who couldn't do anything at the moment except go along with what his sister wanted to do.

"Nnngghhh… Ruby…" Aqua groaned out, falling victim to the pleasurable sensation brought by their debauchery even though they weren't naked yet.

"Your cock is already so stiff, onii-chan. Are you just that horny from the sight of me being like this, nya~? Am I making you aroused~?" Ruby asked whilst licking her lips seductively, feeling Aqua's member through his pants that was practically begging for freedom at this point.

"I can't really hide anything from you at this point, can I?" Aqua shook his head while chuckling to himself. "In that case, you already know what my answer is, Ruby."

Ruby continued to grind her crotch against his while her 'paws' rested on his midsection. This allowed the girl to lean forward, allowing Aqua a close-up view of her bra-clad breasts that swayed back and forth. "Nyau~ perhaps I do… but I want to hear it from your mouth, onii-chan~"

Aqua blushed and pursed his lips together, his gaze darting towards Ruby's sexy look as well as her ample chest that was right there before him, free to be grabbed if he so desired. However, he remained where he was and didn't do anything. The young man knew what she wanted out of him, but he didn't budge. He may think of the world for his sister, but he still has pride as a man and he's not going to give in so easily to her.

The girl noticed what he was doing, so she decided to take things one step further. Ruby moved slightly away from his lower regions, allowing her to unzip his pants and bring out his pulsing erection. Ruby marveled at the sight of his rod, almost as if she had seen the most beautiful thing in the world. It wasn't the first time she had seen his cock, but she treated it as if it was.

Aqua moaned softly when her 'paw' touched the base of his rod, and Ruby giggled at his reaction. She continued running her digits all over the meat stick in a slow and sensual manner, taking her time in breaking down her brother's defenses.

"Come on, onii-chan~" she licked her lips as she wrapped her hand around his erection fully, before she began to stroke it up and down. Because she was wearing her cat paw mitten, the fur on the garment only added to the sensation. '"I just want to hear what's really on your mind, nya~ what do you want to do, exactly?"

And so, Ruby began a slow but guaranteed process of making her brother yield to her, by simply playing with his erection with her hand. She tightened her grip around him, but not to the point that it would hurt Aqua, and continued to move it up and down. Ruby kept her movement slow, but it still got the job done and drew several throaty moans from her sibling.

Aqua was always the one who gave her a good time by pleasing her body… but now that the tables have turned and she's the one who's making him feel the same as she did, Ruby felt a desire to do this a lot more from here on out.

"Fuck…" Aqua whispered to himself, before groaning in defeat. There's only so much he could take from his sister being like this. "F-Fine, I admit it! You're driving me crazy right now, Ruby… I couldn't stop myself from being aroused because you were just too beautiful and sexy… I want to push you to the bed and get this over with!"

The smile that appeared on Ruby's face was bright enough to the point that it can power a whole electrical plant for a year.

"Ah, is that what you really think of me, onii-chan~? That makes me so happy, nya~!" she beamed happily, showing her excitement in the form of meowing. "In return, I want to show onii-chan how much his kitten loves him, nyau~!"

With those words, Ruby leaned her head down until her face was within inches from his cock. The first thing she did was run her tongue across the tip, before licking the entire head repeatedly. She even planted a kiss on his rod, taking great pleasure in seeing it stiffen even further as a result. The moans that came from Aqua were like music to her ears, and they encouraged to continue with her actions.

"Ahhh~ your mouth… Ruby, are you really gonna do this? You shouldn't force yourself if you can't," he groaned out. He knew what Ruby was planning to do, but he wasn't sure if she would be able to handle it. They had never done this before, after all.

"Don't worry too much, onii-chan. I can handle this, no problem~" she raised her head to give Aqua a sultry look that made his heart skip a beat, and his blushing cheeks to turn several shades deeper. "So just lie back and let me take care of you, nya!"

Ruby continued to stroke his cock lovingly for a few more seconds, before finally descending her mouth on it. Her drool lathered all over Aqua's member as it entered her mouth, and it went deeper until it almost reached her throat. Ruby felt her gag reflex kick in at that, but she remained where she was.

"Ahhh!" Aqua moaned, a myriad of pleasure taking over him the moment he felt his sister's mouth on his member.

Feeling comfortable with her current position, Ruby began moving her head up, licking his skin like it was her favorite lollipop. She stopped at the tip of his dick, before moving her head back down. She continued to do this at a steady pace which she quickly got used to, bringing the two of them to a state of euphoric bliss from the pleasure that emanated from their actions.

"How- does it feel, onii-chan…? Nya~" she took a moment to ask her brother how he was currently feeling, but not stopping in the blowjob that she was giving him. Ruby wasn't going to lie and say that his cock was the best thing she had ever tasted, but just the thought and very act of doing such degeneracy was making her hornier than before.

"Ruby… your tongue feels so good…"

"Then- mmm~ let me keep on taking care of you… onii-chan… nya~"

Aqua could only lay there while Ruby pleased him with her tongue, unable to do anything but take in everything he felt right now. This was the first time that his sister gave him a blowjob, but she grew accustomed to it right away that it felt like she already had a lot of experience. The sight of her cat costume and hearing the cat noises that Ruby made only added to the experience.

It reached the point where Aqua couldn't handle being unable to do anything anymore, so he reached out with his hands to touch Ruby. Unfortunately, the only body part he could reach was her head due to their position, but his sister was happy with the attention. All he could do was pat her crown and stroke her cheeks, but Ruby enjoyed it nonetheless.

"You're too good at this," he grunted, closing his eyes while he surrendered to the waves of pleasure that he felt from Ruby's blowjob. "I think I might reach my limit soon…"

"Hehe… am I- mmm~ making you feel good, onii-chan? Nya~" she purred, feeling her own panties becoming wet with her juices from their act of debauchery. This whole thing was driving her insane with arousal, and it only encouraged her to bob her head up and down even faster.

"Too good, honestly… I'm not gonna last long, Ruby…"

And he was right in that statement. A minute after uttering those words, Aqua finally felt a familiar feeling building up in his loins, prompting him to speak up and inform his sister so he doesn't take her by surprise.

"Ruby… uggghhh… it's coming out!" Aqua gritted his teeth and shut his eyes tightly as his climax hit him.

"Mmmm~!"

Despite his warning, Ruby kept Aqua's dick inside and in turn, causing his orgasm to explode within her mouth. Ropes of white cum spurted out of the tip of his penis, which filled her mouth in no time from the amount that he let out. This caused Ruby's eyes to roll up out of sheer pleasure, having no idea that a blowjob would feel just as good for the giver as it is for the receiver.

The boy's orgasm continued for a while, with Ruby keeping her mouth latched on his member. Some of his load had threatened to leak out of her mouth because of how much he let out, but the girl did her best to prevent that from happening. In order to accomplish that, she began to swallow her brother's seed, which she immediately thought was hot and slightly salty. Even so, she swallowed every last drop like it was her favorite drink.

After slurping up every last drop of Aqua's cum, Ruby finally separated from his cock with an audible POP! and straightened her posture. At the same time, Aqua opened his eyes, which allowed him to have a clear view of his sister again.

"You sure let out a lot, onii-chan~" Ruby wiped her mouth clean from any excess cum before throwing him another seductive look that could drive any man insane. "But don't worry. I didn't let a single drop leave my mouth, nya~"

Aqua felt his cheeks heating up again. "You actually swallowed all of it…?"

Ruby shrugged, before bursting into a fit of giggles at the sight of his embarrassed expression. "Like it was my favorite thing to eat, nya~ It tasted a little weird, but I can get used to it because I'll be doing it to you a lot more from now on, onii-chan~"

"It feels kind of embarrassing to hear you say that but then again, you've never let yourself give in to embarrassment…" Aqua remarked as he slowly propped himself up on his elbows, then his arms.

"I could never be embarrassed about being with you, onii-chan. I wanted to take care of you this time because you always— nyaa?!" Ruby yelped in surprise when she felt herself being lifted off the ground, forcing her to quickly wrap her arms around her brother's neck so she wouldn't fall off. Donning a look of surprise, she quickly turned to her brother for an explanation of sorts. "O-Onii-chan…?!"

The young man was carrying her by her thighs, and Aqua couldn't help but squeeze the flesh in his grasp, taking satisfaction at seeing the look of surprise on his sister's face. He even slapped her plump ass, drawing a loud yelp from Ruby while utilizing enough strength to make it sting even though she was still wearing panties.

"You've had your fun, Ruby. Now it's my turn to make you feel good~" he smirked, before walking off with his sister in his arms.

"W-Where are we going, nya…?" she asked as a warm blush took over her features.

Aqua chuckled at her flustered expression. He didn't know why, but it felt good to be back in control and to be able to dictate the pace after essentially surrendering himself to Ruby just a while ago. Hmm, does this make him some kind of control freak who wants things to go his way?

"Someplace where we won't be disturbed or seen by anyone. It's a good thing you drank my semen, Ruby, now that I think about it. If some of it got on the floor or anywhere else, Miyako-san would have seen it. And she's going to wonder what it is… might even ask us what it is since we're the only ones here while she's gone.

"Y-Yeah, good point…" the girl mumbled, now realizing the possible consequences of their actions if they had continued their euphoric trip out here in the open instead of somewhere safer where they wouldn't be disturbed… for the most part, that is.

Aqua carried his sister to his bedroom, kicking the door shut behind him before heading to the bed. Realizing that they had reached their destination, Ruby untangled her arms from around his neck and at the same time, her brother practically threw her on the mattress.

"Nya…! What are you planning this time, onii-chan?" she yelped, looking up at her brother in surprise. Once again, the tables have turned and now Aqua was the one on top while she was below him. Ruby was in the same position as her brother was earlier, unable to do anything while she's underneath him.

"Why would I tell you, when you'll find out for yourself what I have in mind, Ruby?" he stroked her cheek softly, as Ruby leaned into his touch. "Just lay there and let me take care of you this time."

The beautiful idol only nodded, and Aqua wasted no time going to work; his first target was her neck, resuming the work he had already done earlier but this time, he was more aggressive in his actions.

By putting more intensity into the kisses that he left on her skin, it seemed like Aqua didn't care that it could leave lasting marks anymore. All he cared about right now was drawing loud moans from his sister, which were a sign that she felt like she was in heaven right now.

Eventually, he left her neck and started kissing his way down until he reached her ample chest that was covered by her yellow bra. Aqua immediately removed the garment that was in his way by pulling up, making her boobs pop out. This allowed him to continue to please her with his kisses, driving Ruby to the point of holding his face in her hands, only for Aqua to grab her wrists and place them above her head.

Aqua sent her a smirk, which was enough to convey the message he wished to tell his sister and caused her to nod in response. Unable to do anything, Ruby could only fall victim to the total bliss brought by her brother's actions, especially when his mouth finally targeted her breasts.

His tongue ran all over the soft mound of flesh, moving up gradually until he reached her stiff nipple. He flicked it several times, eliciting louder cries of pleasure from Ruby the more he did it. Aqua then repeated the same process for her other breast, giving it the same treatment as the first one and leaving his sibling wanting even more of it.

"Nyaaa~ onii-chan…" Ruby closed her eyes and moaned loudly, wishing desperately for Aqua to release his grip on her arms so she could hold his face but alas, she couldn't do anything while she was in this state.

"That's not how you used to call me back then, is it?" he spoke in a teasing manner, capturing her nipple between his teeth and then biting it slightly, making Ruby arch her back off the bed from how good it felt. "Come on… I want to hear it again from you… Sarina-chan~"

Hearing her name from her past life filled the girl with utmost happiness, and it made her feel warm and fuzzy on the inside. Not only did Aqua know how to please her body, but he also knew how to make her happy.

It's one of the things she loved about her brother, and another one of them is that he was still the same doctor she bore strong feelings for in her past life.

"S-Sensei… nyaaaa~"

"I'm honestly more of a dog person, but you may just convince me to be on the other side instead, Ruby~" Aqua remarked, leaving her breasts and planting a trail of kisses below them. He continued to do so until he reached her crotch that was barred by her yellow panties, which was only held together with a simple knot on the side.

With one pull, he undid the knot which gave him the green light to take her underwear off completely. Now with nothing left in his way, Aqua let his fingers descend on Ruby's clit, pressing down on her sensitive part and rubbing circles on it. While he did that, his mouth descended on her stomach, licking her navel and further pushing her to a building orgasm.

"Nyaaaauuu~!" Ruby cried in complete ecstasy, but she was still unable to move her body much because of his other hand keeping her arms above her head. If her brother felt helpless earlier while he was under her, then she felt a hundred times worse because of how much he prevented her from doing anything else.

"You did a great job sucking me off earlier, Ruby. But I hope you don't forget, I'm the more experienced one and I know all your weaknesses," the blonde actor continued to send her a smug look, while kissing several areas of her stomach. "Your weaknesses, such as this~"

From her clit, his fingers went down to her slit and he could immediately feel how wet his sister had become from everything they have done so far. Her entrance was leaking with her fluids, with some of it staining his mattress below, but Aqua didn't really care about that for now. His fingers remained by her slit, just outside of her throbbing cunt, and he began to rub up and down in a slow but pleasurable motion.

"Nhhaaa, Sensei… that feels so good, nya~!"

Aqua chuckled while moving close to her face. His fingers continued to please her down below, leaving Ruby in a constant state of moans and cries of bliss, and he had not even entered her yet! All he's doing was touching her lower lips with his fingers, and it was already driving her wild.

It wasn't only Ruby, Aqua could feel his arousal heightening up once again from his actions. His penis was already back at full mast after the blowjob that Ruby gave him earlier, and it was eager for some more fun. He was already quite tempted to plunge himself into his sister, but he held back on that desire for now. He still had to repay the favor to her.

"I'm starting to get used to all these cat noises you've been making, Ruby. I think the more you keep on saying them, the more I want to hear them from you," he spoke before capturing her lips in another wild kiss.

"I-I guess I can keep on saying them if I can, nya~" she whispered into the liplock, while winking playfully at her brother.

"Good girl," Aqua patted his sister's head softly, earning another purr of satisfaction from her. "I'll give you a fitting reward then, my adorable kitten~"

After uttering those words, Aqua plunged two of his fingers inside, making Ruby pull away from the kiss so she could release a loud cry of euphoria. The young man took this opportunity to proceed, pushing his digits into her pussy and then pulling out in a complete rhythm. He adopted a slow pace at first to test the waters, before gradually going faster.

All Ruby could do was lie there helplessly, unable to do anything but to moan and surrender herself to the waves of pleasure that attacked her body from almost every angle. She had no agency over her arms, and her legs were practically useless. If that was not enough, Aqua went back to targeting her neck with his mouth, this time he began to bite and suck on her skin as if he was a vampire.

Ruby's eyes widened in response to his actions on her neck this time, feeling a bit of pain but also pleasure every time his teeth sunk down on her skin and followed by a soft kiss to make it all better. It only served to push her closer to the edge, so much that she wasn't going to last long at this point.

"Sensei… I don't think I can take much more, nyaaa~ I'm going to cum!" the girl breathed out after a minute of experiencing Aqua's efforts on her body.

"Cum for me, Ruby~" Aqua leaned close to the side of her face, before he began licking her ear which was the final nail in the coffin for the idol's building orgasm.

"Sensei… sensei…! Nyaaaa~!"

With a loud yell of ecstasy, Ruby felt her orgasm shake her body to the core as a clear stream of her fluids gushed out of her pussy, creating a little puddle of shame on the mattress. Aqua smiled at the end result of his actions, not even remotely bothered that his sister had ruined his bed. In fact, he looked very pleased instead.

"You should keep it down, Ruby. You don't want Miyako-san to barge through the door and see us having sex, do you?" he teased his lover right after her orgasm was over, not even giving her a moment to rest. He did, however, let go of her arms and allowed her to move them freely again.

"I… don't care if she does… nya~ I say… we even give her a show, sensei~"

Despite her exhaustion from going through an orgasm, Ruby was still able to send a sultry expression towards her brother, while Aqua only raised an eyebrow at her. He had no idea if the girl was being serious when she said that, so he simply took it as a joke.

He shook his head in amusement. "Now you're being ridiculous."

"You don't want Miyaemon to see how much we love each other, nya~?" she teased him back.

Aqua decided to play along, even though he had no idea where this conversation was heading. "Even if I did, showing her that we've been doing this behind her back makes me fear that she'll do something to separate us. Then persuade us to end our relationship right away. After all, it is considered taboo from a normal perspective."

Ruby giggled. "I think she wouldn't do that, sensei. But if she does, maybe you can convince her by doing the same thing you're doing to me right now, nya~"

"What are you even insinuating, Ruby?" he raised an eyebrow at that statement, because it sounded less of a joke and that his sister was actually serious… maybe he was just hearing things?

"Nya, maybe you should have sex with Miyaemon so she'd stay quiet, sensei…" she sent him a playful wink, which left Aqua in a state of both shock and embarrassment. This caused Ruby to burst in a fit of giggles, finding his expression completely hilarious. "Nyahahahaha! I bet that caught you by surprise, Sen— iya~!"

Her last statement was cut off when Aqua's hand landed on her left boob in a loud smack, making Ruby yelp in pain before looking up at her brother. The young man had an evil smirk on his face, one that promised nothing but misfortune for his lover.

"You're such a naughty cat, Ruby. Even though you're my girlfriend, you're suggesting that I should have sex with Miyako-san? Of all people, you would mention the person who raised us after mom died?. Have you forgotten that her husband has returned to fulfill his role as the leader of the company? And have you also forgotten that you're my girlfriend? I wonder why you would even think of saying such a thing…"

"I-It was only a joke— nyaa~!"

Aqua slapped her other breast, this time leaving a red handprint on her flawless skin because of the force behind the hit. He then leaned down that he was inches away from her, and Ruby gulped at the expression on his face. She had no idea what he was thinking right now, but the girl could tell that her 'joke' just now was a bad move in its entirety…

"That doesn't excuse you for what you did wrong, Ruby. You suggested that I should be unfaithful to you by going after Miyako-san," Aqua whispered into her ear, as his hot breath sent a chill down her spine. "You have been a naughty cat… and do you know what happens to naughty cats?"

"W-What, Sensei…?" she muttered, breaking character for a brief moment.

"They get punished."

"Nya~!" Ruby let out another yelp when Aqua suddenly grabbed her thighs and pulled them up, before positioning them on both sides of her face in a mating press position. This left the blonde idol exposed and vulnerable, which also made her blush deeply. "T-This position is embarrassing, Sensei…"

"Ho? Why are you getting embarrassed now, Ruby? You were perfectly fine earlier, right? Is this position too much for you?" he grinned at her, positioning his erect member right outside of her waiting twat.

"I-I guess it is, nya…" Ruby's breath hitched when the head of his member slowly rubbed against her wet entrance. She had fully recovered from her orgasm a while ago, but she could already deduce that she's going to be left in a helpless state of orgasmic bliss again when her brother's done.

"Good, then. Because it's time to give you your punishment."

And with those words, he gripped her legs tight and plunged into her delicious pussy.

"Nyaauu~! S-Sensei's cock is inside me~!" Ruby threw her head back and let out a yell that's loud enough to be heard throughout the whole house, not even caring if there was someone else who's here with them. In one thrust, she could feel his meat stick invading her insides with almost no resistance from her, and the younger one of the siblings could only describe the sensation in one word.

Fulfilling.

After many days of trying and failing to get her brother's attention so they could do this again, Ruby felt happy and satisfied that it actually happened. She didn't want to have sex just to be intimate with her brother, she also saw it as an opportunity to be as close to him as possible. A lone tear of joy even escaped her eye, which flew by so quickly that Aqua didn't notice it.

"I'm going to move now, Ruby."

As Aqua began to move his hips, her vaginal walls contracted and doubled down on her brother's dick, but he was completely used to this sensation by now. He ignored the little obstacle that was in his way and continued on like it's nothing.

The position they were in allowed Aqua to reach the deepest part of her pussy easily, sending powerful waves of bliss throughout both their bodies. Right now, the young man wanted nothing more than to act on his lust and primal desires by making love to his sister, and hearing Ruby's moans of pleasure was only encouraging him.

Ruby couldn't get anything out of her mouth except for her cries of pleasure that happened whenever Aqua slammed himself into her. Almost every part of her body had lost its strength by now, and only the feeling of euphoria remained as a product of their lovemaking. She wanted this moment to last, she wanted her brother to fuck her until she couldn't walk, but all good things had to come to an end.

Not even three minutes in, Aqua quickly felt his orgasm approaching, causing him to move his hips faster so he could reach that high point. "I'm going to cum… Ruby!"

"Cum… cum inside me, Sensei~! I want to do it with you!" Ruby rambled out with her tongue lolling from her mouth, completely drunk on sexual pleasure by now. The feeling of Aqua's cock penetrating her insides and hitting all of her sensitive spots was too much for her to take, and it brought her to a growing orgasm of her own.

After a few more thrusts, both teens moaned loudly as their individual climaxes hit them at the same time. Aqua kept his cock buried inside her twat, causing his hot seed to flow into her birth canal. Meanwhile, Ruby's body shook as her fluids mixed with her brother's cum, which was too overwhelming for her pussy to handle.

Aqua slowly pulled out, causing their shared orgasm to leak out of Ruby's entrance and into the bed. Both teens were left panting after that lovemaking session and the beautiful idol looked ready to call it a day. After all, she got what she wanted; they were finally able to have sex again after some time of not being able to even be together because of how busy her brother was with the movie.

However, instead of pulling out completely because they were done, Aqua only grabbed her hips and flipped on her stomach out of nowhere. Ruby yelped as a result, and while she was trying to figure out what was happening, her brother grabbed her delicious ass and raised it in the air, before pulling it towards him. Just as she was about to ask him what he was planning, Aqua drove his still-erect cock into her once again.

"Ahhhh~! Y-You're not done yet, Sensei?!" Ruby asked while turning her head, spit flying out of her mouth at the sensation of Aqua filling her pussy to the brim again.

Aqua let out a loud grunt, before he shook his head furiously. "I don't want to stop yet, Ruby… I can't get enough of you…!"

With renewed vigor, Aqua began a new set of thrusts and let his primal instincts take over. While his hips moved back and forth against hers, Aqua leaned forward and reached out to grab Ruby's breasts from behind, fondling and playing with them as much as she could.

"Nyaaan~! My body feels so good, sensei~!" she cried out, her eyes rolling to the top of her head from sheer ecstasy while her brother continued to fuck her like a man possessed.

Despite the lack of strength in her arms, Ruby was still able to keep herself propped on her elbows so that her face wouldn't be buried against the bed. However, the feeling of bliss and euphoria brought by Aqua's rod moving in and out of her pussy was making it hard for her to maintain that position.

His cock continued to explore her deepest parts, and the girl felt her voice slowly becoming hoarse from the screams and cries of pleasure that she had been letting out until now. That didn't matter to Ruby though, because all she cared about right now was her lover continuing to please her and her body with seemingly no signs of stopping anytime soon.

She wondered why he wanted to go for another round, but it didn't really matter. If Aqua wanted to do it all over again, she would agree to it because it meant spending more time with her beloved.

"Sensei~! I can feel your cock piercing my womb~! It feels so good, nyaaaa~" she cried out once she felt his cock reach her most sensitive spot yet. At that moment, she had lost all strength in her upper body completely and she was about to collapse on the bed, but Aqua hugged her from behind to prevent that from happening.

"You like that, Ruby? My dick is kissing your womb. It's like we're kissing for real~" Aqua teased while his fingers pinched her rock-hard nipples, pulling on them in all directions.

"Yes, yes, nyaaauuu~! Please keep on kissing my womb, sensei!" Ruby screamed, her mouth forming a 'fucked stupid' smile that went well with her eyes that were completely clouded with lust.

Aqua then noticed the furry tail that was hanging from her ass, and he quickly realized that it had been attached to a buttplug this whole time. He slowly pulled it out, evoking a loud shriek from Ruby that quickly died down because of exhaustion. He threw the plug away and shoved a couple of his fingers into her asshole, effectively tripling the euphoric feeling that Ruby felt.

"S-Sensei… that's my butt, nya~!" she blurted out, the smile on her face widening at the feeling of her brother giving her rear hole some much-needed attention.

"I'll make sure to take your ass in the future, Ruby. I want to make sure that every part of you belongs to me and no one else," he whispered hotly into her ear as his fingers moved in and out of her , which caused goosebumps to appear on her body.

"Yes, yes, nyau~! Please fuck my ass too, sensei~! Make me yours completely, nyaa~!"

The blonde actor continued to pound his lover's insides for the next few minutes, until he felt the familiar sensation building in his nether regions once again. It made him move at a faster pace once again, his body eager for another climax while he's making love to Ruby.

"I'm going to cum again, Ruby!" Aqua announced out of nowhere, snapping the girl out of her ahegao expression as she registered those words in her mind.

"Nya…?! But you just came inside me!"

Aqua didn't listen and only hugged Ruby close as another orgasm was squeezed out of him, shooting another batch of hot cum into his sister's waiting pussy. In response, the girl let out another loud scream of sheer pleasure before her own climax hit her, her fourth one in such a short time. The combined mixture of their fluids leaked out of her cunt again, the volume being too much for her insides to take.

Any sane man would have pulled out at this point and be satisfied with the wild but amazing lovemaking session that just took place.

But the young man didn't stop there.

Aqua didn't feel like he was satisfied yet, not by a long shot. His penis certainly didn't feel satisfied with how erect it remained despite the consecutive orgasms he went through.

Within a minute, Aqua had already repositioned himself and Ruby for another round, before he began to thrust in and out of her swollen pussy once again.

"S-Sensei! I'll get pregnant this way… nya!"

Ruby tried to tell her brother of the possible things that could happen if they continued to do this; Aqua was now lying below her and she was on top of him, but it didn't mean that she was in control again. His hands were still on her chest, groping her large breasts while his hips continued to move on their own, driving his erection in and out of her.

"Let's deal with that later," Aqua told her, ignoring her concern. By now, he had completely given into his desires and lost his sense of logic, although no one could really blame him for it. All he wanted to do right now was to please and satisfy both himself and his sister with his efforts.

"You're doing it inside too much… nyaaa~ I can feel my stomach being filled up with your cum~" she rasped out, noticing how her stomach was becoming bigger in size by now, but Aqua didn't stop at all.

The slapping of skin against skin could be heard from outside, but none of it mattered to the two siblings. This was a moment between the two of them, and they didn't care about anything else. Their bodies and clothes were drenched in sweat as well, as they have been going at it for about two hours now, starting from the blowjob that Ruby gave Aqua earlier by the couch.

"Ruby… I'm cumming again!"

Right after uttering those words, Aqua felt another climax hit him while he kept his cock inside his girlfriend's sacred place. Load after load of baby batter shot out of his rod and went deep into her womb, filling Ruby up even more despite the fluids that were continuously oozing out of her pussy.

The blonde idol threw her head back as spit flew out of her mouth, feeling her stomach expanding even more after Aqua's orgasm. Drool flowed down her mouth as a look of complete bliss was the only thing that remained on Ruby's face.

"Nyaauuu~! I'm being filled with… more of Sensei's cum~"

Yet even with that, Aqua still didn't feel satisfied.

The sun was starting to go down, but Aqua was still deep in the throes of passion with his lover. At this point, they were completely naked and bare, with Ruby discarding all the pieces of her cat costume from earlier. However, she kept on making cat noises and acted like one in general, simply because Aqua liked to hear them from her.

Now they were in a basic missionary position, with Aqua gripping Ruby's hips tight while pistoning in and out of her cum-filled twat. Exhaustion was starting to catch up to him, but he ignored it in favor of his current predicament.

"I'm gonna be pregnant, nya! I'm gonna be like Mama, nyaauu~!" she howled, her eyes widening in wonder and amazement at how her brother could still keep going up until now. Her stomach was visibly bigger as a result and to a normal person, it would look as if she had gained several pounds.

Despite his growing exhaustion, Aqua was able to muster up a smile that was directed to his sister. "You love it, don't you? You love me going deep inside you, Ruby~?" he spoke in a teasing manner, wanting to see what kind of response he would get from the beautiful idol.

"Yes, I love it~! I love your cock, Sensei! Your cock, your cock! I love your big mighty cock going inside me~!"

Hearing those words from Ruby only encouraged him even more and at the same time, it pushed him over the edge because of how aroused it left him. His climax on the horizon, Aqua held her hips and drove his cock in and out of her faster, wanting to achieve the peak of sexual pleasure once again.

"I can't stop… I'm cumming again, Ruby!"

"Nyaaaauuu~!" Ruby cried out as another big load of hot cum entered her and went straight to her womb, expanding her already-bloated stomach with even more of his sperm.

Aqua was left panting heavily after his body was drained of another climax, to the point that he felt like collapsing beside his sister, but he kept himself strong. He didn't know what it was, but there was still something missing from all this that he still didn't feel like stopping.

"Not yet… not yet…!"

Even after the sun was gone from the sky and replaced by the moon, Aqua continued to make love to his girlfriend as if the world was going to end tomorrow, and Ruby couldn't do anything but surrender to the pleasurable sensations of their shameless act of debauchery. She had stopped acting like a cat at this point, but Aqua was fine with it.

Holding her by her thighs, Aqua carried his sibling against the wall and resumed his thrusts, ignoring how tired he felt deep inside. In return, Ruby had her arms wrapped around his neck, although her grip was considerably weak from exhaustion. By now, her stomach had been filled with so much cum that she looked like she was nine months pregnant. She stopped caring about the possibility of pregnancy a while back, only paying attention to her brother every time he penetrated her insides with his stiff rod.

"Onii-chan… I love you!"

Hearing his sister's voice, Aqua shifted his attention from his actions to Ruby herself, who managed to raise her head to look at him. Her eyes were half-lidded, her tongue was hanging out the side of her mouth, and she felt very tired, but Ruby was still able to send him a smile that was filled with pure love and affection.

"I love you… I love you so much, onii-chan!"

Aqua could only stare at her as she said those words, his passive look hiding a lot of emotions that he felt deep inside.

"There's a big chance that I might not come back to Ruby when I'm done…" he thought to himself, taking a moment to imagine what his sister's life would be like without him by her side. "Because of that, I'm doing my best to make her happy while I'm still here, while I'm still alive. So when the time comes that she'll be on her own, without me, she'll be able to handle herself…"

Miraculously, the blonde idol was able to muster enough strength to pull herself up and press her lips against Aqua, who was surprised at the kiss at first but didn't hesitate to return it right away. After a short but sweet moment of their tongues wrestling against each other, Ruby pulled away before manifesting a loving smile at her dear brother once again.

"I don't want you to lose yourself in your revenge, onii-chan! I don't want you to go! I want to stay with you forever!"

"Ruby…" he whispered, his eyes growing wide at those words. He felt as though he had just been punched in the gut by an unknown force and because of it, the emotions that he was hiding were threatening to spill out. If that wasn't enough, there was a brief moment where he saw Sarina's face instead of Ruby's, the girl whom he couldn't save in the past, something that has haunted him even in his new life.

"I don't want to lose you like when we lost Mama… will you let me stay by your side, onii-chan?" Ruby asked with an innocent smile.

And with that question, combined with his sister's smile and the thought of Sarina being with him, Aqua surrendered to his innermost feelings, the emotions that he bottled up inside for so long, signified by the tears that were willing up in his eyes.

"Ruby!"

Unable to keep himself together, Aqua tightened his grip on her thighs and resumed his thrusts with renewed vigor, like he was never tired in the first place. Ruby's moans filled the bedroom once again as he pounded her swollen red pussy, while taking his sister's words to heart.

He raised his head to capture Ruby's lips in a deep kiss, which she reciprocated happily. The pair sucked each other off as their lovemaking continued, at least until Aqua felt his peak approaching a minute later.

"Ruby… Ruby! I'm going to cum again!" he groaned, moving his hips as fast as he could to reach the climax that he wanted.

"Onii-chan~! Onii-chaaaaannnn~!"

Aqua groaned loudly as he exploded inside her pussy, filling Ruby to the brim with another load of his sperm. At the same time, Ruby felt her own orgasm hit her, draining her body of its strength as her juices sprayed all over her brother's cock and mixed in with his own cum. So much of their shared fluids had gotten on the floor by now that it made a mess, but it didn't matter one bit.

"It's so hot~! My stomach feels like it's on fire!" Ruby cried out with her eyes wide, while watching her stomach expand even more from the white seed that Aqua shot into her womb. The girl was left panting heavily from complete exhaustion, and her arms fell to her sides as a result.

After their orgasms subsided, Aqua finally felt that he was ready to stop. However, this was when his exhaustion kicked in, and it caught him off guard. He almost lost balance and very nearly let go of Ruby because of it, so he quickly retreated back to his bed where it's safe.

After carefully setting down his sister on the soft mattress, Aqua stumbled beside her and collapsed in a heap, completely exhausted and left with nothing but fatigue after everything they did. When he felt his hand being grabbed, he turned his head and saw a smiling Ruby intertwining their fingers together in an affectionate manner. She didn't even care that she looked pregnant because of her bloated stomach, or that they would have to hide this from Miyako and everyone else tomorrow…

She only cared about him, and it made Aqua smile.

While the young man laid there with Ruby by his side, his mind went back to the things that his sister told him during their last round. All of it made him think about his earlier thoughts, about how he'll be gone in the future, when this is all over…

…about how Ruby will be left all alone again.

Without him around.

Just like how he was left alone after Sarina died.

At that point, he finally understood where he went wrong… why Ruby was upset with him in the first place… and what he had been doing wrong all this time.

"What have I been thinking…? I'm such an idiot…"

Before she could surrender to the warm confines of sleep, Ruby heard the sound of sniffling beside her, which immediately woke her up. When she turned to her side, she was met with Aqua covering his eyes using one hand, as the unmistakable sight of a tear flowed down the side of his face.

"Onii-chan, what's wrong…?! Why are you crying?!" Ruby quickly wrapped her arm around him in a hug while she continued to ask her brother what's wrong.

And for what seemed like the first time in an eternity, Hoshino Aqua cried and wept for what he would give up if he ever lost himself in the pursuit of revenge.

---

MINASAN, YONDE KURETE ARIGATŌ! AISHITEMAAAAASUUUUU! *starts playing air guitar*

-Lance