Chapter 4: Issei's Starter Harem
My mom apparently really wanted grandkids, because when I brought over two girls, here are the things she said:
"Have fun you three!"
"Oh, are you Aika?" (Aika blushed but nodded.)
"Issei, you need to get serious." (For a moment, I worried she was mad at me for sowing my wild oats or something!) "If you have two women, it'll be harder to please both, so make sure you work hard!"
Honestly, Mom, are you actually secretly really lewd?! Actually, don't answer that! You're my mom, such thoughts are not for me to have!
Once I was actually up in the bedroom... Kiyome went for the console. "Now let us engage in a battle of wits," she said, grabbing a remote, then pausing a moment later. "Issei! Where is a third remote?!"
"I only have two."
"Wow," Aika said. "Issei brought two girls over and he didn't buy a third remote," she said, but I could see that she was just barely keeping herself from cracking a smile. "Terrible. Shameful."
"I'm certain he merely forgot!" Kiyome said. "Right, Issei-kun?!" She sounded positively desperate to rescue my honor.
"U-uh. Yes?" Technically, in that, I thought we were gonna be having sex rather than playing video games! What had she actually said last night? Had I been too horny and thought she was talking about sex when she wasn't? Had she somehow misinterpreted 🍑 as meaning Princess Peach?!
Kiyome sighed. "I had hoped we could engage in the foreplay of a thrilling tennis match," she explained, and Aika was clearly gigglesnorting, but Kiyome continued on regardless. "It seems not. We'll just have to jump right to sex with no foreplay. Is that acceptable to you, Aika?"
"Oh, yeah," Aika said. "We~ell..." She paused, pushing her tongue against her cheek, glancing over at me with a devious expression. "I think he should eat us out. That's the least he could do, since he forgot the third remote."
"That seems eminently fair," Kiyome agreed.
I could have argued... but I didn't! I refused to be a selfish lover! Plus, it would be impossible for them to refuse to give me a double paizuri-blowjob if I did eat them out! "Alright, let's do it," I told them. Aika's smile grew and she hurriedly wiggled her way out of her skirt and panties, something Kiyome did on the opposite side. I quickly got down on my knees and got in between Aika's thighs, leaning up to kiss at her sex.
She shivered softly at my lips as they ran along her slick sex, and my other hand reached out for Kiyome, thumbing her clit, fingers sliding inside her. I teased them both for a long few seconds - and then I used my powers to make them come!
Well, only Kiyome actually came, moaning as her legs clamped down around my hand, her pussy twitching on my fingers as she started to lose her balance. She eventually just flopped down onto my bed rather than continuing to stand up, panting softly as she quivered on my fingers.
Of course, I was focused on Aika! I'd tried to make her come, but she hadn't, which was definitely all wrong! I definitely had bought the "make a girl come" powers, so why?! I tried the power on Aika, again and again, but nothing happened! I tried it on Kiyome, and she came again, moaning and thrashing about on the bed, the mattress squeaking beneath her as a second orgasm hit her in the middle of the first. Had Aika become immune to my power, the most terrible possible thing?!
What was the phrasing? Gah! I couldn't go get my phone! I kept trying to make Aika come as I licked along her sex, kissed her clit, and then when I finally stuck my tongue inside her - that was when I finally made her orgasm. I was doing the mental equivalent of jamming on the keyboard in anticipation of a reaction, so when it finally started working, I may have made her come three times within a second, her whole body spasming as her eyes peeled back and she just collapsed onto the bed in a quivering mess, twitching and moaning and gasping, hands clawing at the sheets and mattress.
Did I need to be inside her? But I'd been able to make Kiyome come when I was fucking her tits!
Wait, that was it: fucking! I think the phrasing was something about "fucking" the girl. You couldn't really describe kissing a girl's clit as fucking her, right? But I was fingerfucking Kiyome, and I'd been tonguefucking Aika.
Well, whatever the case, both women had come multiple times - I gave Kiyome a third orgasm, to make them even - and I was hard and horny, so I pulled my fingers out of Kiyome's pussy and hurriedly stripped naked, both girls looking up at me with orgasm-clouded gazes, clearly drinking in my increasingly naked body with uninhibited lust. "Huh, hey, you duh, didn't eat out, Kiyome," Aika panted out, her eyes still a little unfocused as my cock came out and pointed at Kiyome.
"Do you want me to eat you out, Kiyome? Or would you rather get fucked?" I asked her, a grin on my lips, my cock teasing her slick sex. I already knew the answer without having to hear her talk - but I wanted to hear it anyway.
"Ravish me," she breathed out, the words a soft exhalation, and my cock furiously twitched by way of response - and then I thrust inside her, groaning as her pussy wrapped taut around my cock. I made her come again, moaning and spasming beneath me, twitching in raw bliss. Her hands reached up for my chest, scraping at it, fingernails raking across bare skin as her eyes rolled around in her head. I spared a glance over at Aika, who was already panting, her hand stuffed down in between her thighs, starting to masturbate already to the show. Our eyes met, her cheeks aglow as I thrust back and forth inside of Kiyome.
"I-Issei," she exhaled, her eyes leering up at me, and Kiyome tightened up. "I wanted to see you on your knees in front of Kiyome." Her voice was a pitiful yet sexy whine, my cock throbbing inside of Kiyome. "G-Gap moe," she explained - and I made Kiyome come, the girl moaning loudly, her entire body writhing on the bed beneath me, as her slick sex went absolutely wild around my cock.
"There'll be plenty more threesomes," I reassured her. Kiyome just glomped onto me - she was still wearing her top, breasts pushing into my chest through her school uniform and bra - and I let one hand hold her up, keeping her against me, while the other reached over for Aika's sex, slipping inside her. I promptly made her come, moaning on my fingers, her hot breaths exciting to listen to, her cute pink cheeks an enticing thing to look at, particularly given the uninhibited lust she was staring at me and Kiyome going at it.
Kiyome recovered from her orgasm - at least enough to twist me into a kiss with her, sucking on my tongue hungrily. I thrust up inside her, enjoying the way her body felt feather-light in my hands, my strength having risen vastly from my purchase of superhuman buffness, and bolstered still further by the fact that I was fucking two girls at the same time (which boosted my strength, remember). She hungrily sucked on my tongue, her eyelashes fluttering rapidly as I pounded away, my finger almost absently working its way inside of Aika, who just quivered by way of response, hot breaths spilling out, seeming to echo in my room.
"Ohhh, Issei," Aika whined out on my fingers - and I made both her and Kiyome come as one, both girls orgasming hard. Kiyome's moaning in my mouth grew louder, more senseless and animal, slurping and sucking noisily on my tongue, her eyelashes rapidly fluttering, her whole body twitching. Aika was just a quivering mess, legs snapped around my arm, hot breaths spilling out as she stared up at me. When she recovered from her orgasm, she started to strip herself naked, revealing pert breasts as she got completely naked. "Issei, ahn, please give me your cock," she whined out, needy and desperate even though I'd hardly been fucking Kiyome that long.
I pulled out of Kiyome at that point, directing her to lie down on the bed, and went right over to Aika, lining up with her slick sex and thrusting into her too. I groaned in pleasure as her legs wrapped around my hips, and she hungrily leaned up into my chest, sucking on my nipple, licking at my bare chest with a hunger I thought only a guy like me could have! My cock twitched inside her again, and I made her come, enjoying as she moaned into my chest. I spared a glance over at Kiyome, who was hurriedly stripping herself naked, looking up at me with smoldering lust - and, soon enough, clambering up to push her tits into my bicep as she made out with me, one of my hands going to her pussy to play with her.
Both girls and I enjoyed an intoxicating series of back-and-forths, each of them getting to orgasm plenty, each of them feeling needy and horny whenever I wasn't inside them, but never complaining. They'd masturbate if I wasn't fingering them, and just squirm on my hand when I was. Occasionally, the three of us would wind up in an obscene three-way kiss, but the pair obviously threw all their attention on me, tongues diving into my mouth and trying to scoop out spit. No matter how many times I fucked one or the other, their pussies quivering on my cock as I forced orgasm after orgasm out of them, I didn't come, just continuing an endless, pleasurable, long threesome.
I still wasn't going to risk a pregnancy, after all!
In the end, after a long while of fucking, I wound up lying down on the bed, with Aika and Kiyome both pushing their voluptuous breasts into one another around my cock. Aika's breasts were the smaller of the pair, but in combination with Kiyome, they were plenty big enough to smother my dick in soft titflesh. I just laid back, smiling down at both girls, relishing the feeling of big tits around my cock.
"Ahhh... Issei's manhood is so incredible... I'm working on writing some poems about it, Aika," Kiyome said, breathing heavily as she spoke. "His rod of iron / pure and bright, stronger than I / Conquer me again." Aika just stared for a long second. Kiyome flushed. "I know! It can't truly capture the... the pure dominance and raw power of his thick manhood! It is an implacable monster of masculinity, immune to all our feminine wiles as we plead to be made teen mothers while it fucks us, instead putting us to work servicing it..."
"If you want to be a teen mom, don't involve me in that," Aika said, then shook her head. "Your cock is really nice, Issei," she said, glancing up at me with a smile. She leaned down towards it, kissing at the tip. "Tasty, too." She added, before she started to just noisily lick at it - and Kiymoe joined in soon enough. From how loud they were licking and sucking, you could have imagined that they were making out - but instead, they were teasing the tip of my cock as they pressed their tits into my cock, my whole length throbbing in their bosoms as their tongues ran around and around my cockhead.
I placed one hand on either girl's back, and smushed them against each other, tightening up their tits on my dick - and then I made them come together. They both moaned in delirious pleasure at that point. Where Aika's sucking became more horny and desperate, Kiyome just cast her head back, her head turning up to me, her hair a bit of a mess and her eyes smoldering with lust as I twitched in their tits. "Ahhh, Issei, you are, a stupendous, luh, lover, it's so much, beyond, everything, before," she got out - and I rewarded her with another orgasm, enjoying as she went cross-eyed with pleasure, her hands tightening up on her tits.
Aika's sucking on my tip got more enthusiastic and sloppy, her mouth wetly smacking, and I went for it, finally letting go and just unloading in her mouth. She gulped desperately as I unloaded a truly copious amount of cum, the long-built-up semen now finally finding sweet release in her mouth... and when I was done, I just casually peeled Aika up by one of her braids, enjoying her smoky look of lust as she chewed my cum, and pushed Kiyome back down to suck on my tip herself, a nonverbal way of saying that I wasn't done just yet.
"Ishei ish goo," Aika declared, my cum still having loaded up mher mouth. "I'm luggy tha' you claimeb me as your sluuuut," she said, a little cum drooling over her lower lip - and I casually collected it, feeding it back into her mouth. She noisily slurped and sucked on my finger.
"You're not my slut," I said.
Aika actually somehow looked upset at that, her eyes having a puppy dog note to them as she looked up at me from behind her glasses. She gulped down my cum in her mouth. "I'm not?"
I didn't know what to say, so I let instinct take the wheel: "No, you're my girlfriend! Kiyome too!" I declared, hopeful that this was the right thing to say at that moment - Kiyome certainly didn't seem to mind, humming pleasantly on my cockhead, intensifying the pressure of her tits on my cock. "I'm gonna have a lot of girlfriends, just so you both know! I plan to be the Harem King of Kuoh Academy!" I added that in mostly because I really wanted to have more than two girlfriends. Greedy? No! I would make every girl who sucked my dicks and/or gave me a titfuck better off, so it was actually good for me to have lots of girlfriends!
"Oh... I see..." Aika said, her expression becoming sly. She pushed her tits into my dick harder, making me groan. "You want every girl to be your girlfriend, huh, cheeky boy? Not a slut or a teen mom... you're just a romantic deep down, aren't you?! Pretending to be all perverted, when really, you're vanilla!"
"Wha-! I'm not vanilla!" I tried to think of something I could say to disprove her. "Paizuri isn't vanilla!"
"It is! MFF threesome, harems, blowjob, paizuri - that's as vanilla as it comes, fake pervert! You're lucky that your cock's so good, or I'd have to turn down your vanilla ass!" Aika said, cackling a bit as she pushed her tits all the harder into my cock. Kiyome just kept happily slurping on my cock.
"I'm not vanilla! I'm not!" I don't even know why I was arguing! At the time, I came up with the genius scheme to make Aika come, hot breaths spilling out of her mouth as she came. "I'm a pervert!"
Aika decided to let the argument go. Mostly because I kept making her come for the remainder of the titfuck!
Afterwards, when they were both cuddling up to me, Aika nuzzled against my chest. "Fine... I can be your girlfriend..." She said, like it was some arduous burden. "You stole my first kiss with your cock... and my virginity... so I have no choice..."
"I, too, have been deflowered and despoiled by you, Issei," Kiyome agreed. "So I must accept whatever position you give me... besides, girlfriends become wives in time, do they not?"
I decided not to argue with either of them. As long as they accepted being my girlfriends, that was step one (get a girlfriend) and step two (get a second girlfriend) of my master plan, complete! Now for steps three through sixty!
* * *
Aika was still making friends at Kuoh, so she had a hard time recruiting girls for threesomes. Kiyome, on the other hand, was already captain of the tennis club and thus knew plenty of girls there, who she was happy to introduce to my dick. I felt a little bad for Aika, who obviously felt left behind by her inability to recruit more girls for me to fuck, but I trusted she'd get some soon enough!
Obviously, one advantage of Kiyome basically personally feeding me every member of the tennis club, is that it procced Harem King, making me even stronger! I made sure the girls got the benefits of Booster Cock too, of course - I'm not selfish! - so I got plenty of titfucks from the busty ones and blowjobs from the less-busty ones. There were six girls in the tennis club, and I was fucking all of them! That was a roughly 3x boost in my strength, by my calculations, so I was feeling great!
It wasn't just that, though. Share Interests procced too! Most of the girls in the tennis club were older than me, so I was breezing through classes and learning to absolutely crush at tennis, with hardly any effort at all. Which was great! It meant I could spend even more time fucking my nascent harem! (Sadly only Kiyome and Aika had accepted position of girlfriend, with the other tennis club members just thinking that they were Kiyome's friends fucking Kiyome's boyfriend because Kiyome was into that and I was good at sex - but I was sure I could fix that soon enough, by fucking them even better!)
That's how I spent the first two weeks of my time at Kuoh Academy. It was true bliss! Even if not all the girls I was fucking were 100cm+, they were still cute and hot and sexy and fun to have sex with, especially Aika and Kiyome (since they accepted being my girlfriends, and my future status as harem king).
"Hey, Issei," Yuuto said, his voice low after classes let out. "There are rumors about you," he said, his voice sounding honestly concerned.
"Geh? What?" I asked, worried. Was somebody spreading lies about me? That would make it harder to expand my harem!
"Well... it's, uh," he swallowed, scratching his cheek. "It's that you're..." It must have been horrible! Terrible! "That you're having sex with the entire tennis club. Or, the female members, I guess."
"Oh." I let out a sigh of relief. "That's fine, then."
"Uh. Are you sure? What about your girlfriend Aika? She seems sweet on you, but if she thinks you're cheating on her-"
"Oh, she knows."
"I'm sure she trusts you, but there'll be that niggling doubt-"
I clapped Yuuto on the shoulder, making him let out a small noise of surprise at just how firm my strength was. "No, Yuuto. She knows I'm fucking the whole tennis club." He stared blankly up at me. "I'm actually their lucky charm, since they get more athletic after sex with me!" Well, after a blowjob or titfuck, but that was getting a little personal, you know? Maybe Aika was right, and I was vanilla...
"I'm..." He let out a laugh at that, shaking his head. "You had me going, Issei. Sheesh. Look, I'm not joking about the rumors. Even if she knows they're BS, she'll think where there's-"
"No! Yuuto! I am actually having sex with the whole tennis club," I told him, my voice deadly serious. "Kiyome and Aika are both my girlfriends, and since Kiyome is the captain of the tennis club, it was pretty easy for her to convince some of the members. Well, it took a little work, but it turns out!" My expression firmed up. "Girls really like hot guys who fuck really good and don't come inside!"
"Oh my God, you're serious," Yuuto said, the color draining from his face.
"Hey! I'm not doing anything bad! Both my girlfriends know about each other, and the girls in the tennis club all know that I want to become a Harem King! Oh, but don't spread it around, I guess, it might cause problems if everybody knows."
"I... I can't deal with this right now," Yuuto said, extracting himself from my grasp and leaving in a rush.
I watched him go, thinking about what I'd said that upset him so much. Maybe he had a crush on one of the girls in the tennis club? Well, I could leave her to him! Unless it was Ushio, her boobs were really big and soft. Or Kimie, she was super nice and energetic and had big boobs too... but one of the other girls, okay!
Maybe you're thinking that he was upset about me stealing his crush's first time, but if he rejected a girl because she wasn't a virgin, he didn't deserve her! One of the girls in the tennis club hadn't been a virgin! I know because she said I was so much bigger and better than her ex! Though I guess Yuuto would not get that experience, since he did not have supernaturally enhanced sex skills...
Wait... who had been spreading around that I was fucking the whole tennis club?
No matter how I thought about it... it had to be a tennis club member! I needed to thoroughly interrogate them all to get to the bottom of things! And what time are women more willing to speak their minds than right after mind-blowing sex? I really had no choice!
* * *
Since the tennis club had access to multiple rooms with locks on them, we didn't have to go home to have sex, which meant I often stayed late at Kuoh nowadays. I did make sure that we cleaned up any mess we made! Mom, I respect the cleaning staff and their hard work and lack of desire to deal with my shit!
So it was almost dusk when I finally made my way back to the Kuoh Academy gates, and there was someone waiting for me there.
She was a beautiful redhead with a full, voluptuous bosom. A foreign girl with big boobs! She looked fierce and harsh as she glared up at me with piercing blue eyes. "So you're the one who upset my precious Yuuto?"
W-wait?! He had a girlfriend already?! Riajuu go expl- wait, I'm a riajuu now, nevermind. "I didn't mean to upset him. I was just trying to reassure him."
She frowned at that, cocking her hips in a way that made her tits bounce. She had huge breasts! Maybe even bigger than Kiyome's? And just about the perfect size and shape, too?! "Reassure him? Explain, Issei Hyoudou."
There was a feeling of intense pressure, like she was a demon ready to swallow me up and take me to hell. "I-!" Wait! Should I not kiss and tell?! But one of the girls in the club was... and I didn't know which, even after fucking them all again in a big orgy and asking! "He was worried that I was going to have my relationship with Aika messed up by rumors, but the rumors are true."
"Well, ye..." She trailed off. "No, wait. What rumors are you talking about?"
"What rumors do you think I'm talking about? Actually, it's very rude to interrogate me without even introducing yourself!"
"I'm Rias Gremory. And I don't know what rumors you're talking about, that's why I asked. Yuuto just came to the club room mumbling about how you were a 'monster'." A monster?! Yuuto! I thought we were brothers, united by the common struggle of the girls in class being really creepy and shipping us! "Just answer my questions, Issei." She sounded testy!
"Fine," I said, raising my chin. "There's a rumor that I'm having sex with the whole tennis club."
"Oh, that dumb thing," Rias said. "Wait, you mean-"
"Yes. It's true."
"Issei!" I heard Kiyome before I saw her, and she just flung herself at me, wrapping her arms around me. Her hair was still a little messed up from our earlier sex. "Rias! Back off, she-devil! Issei is mine!"
"Whoa, I think you're misunderstanding things, Kiyome," I said.
"She's a devil! She's after your soul, Issei! In the name of the God of the Christians, begone!" Kiyome made the cross with her fingers. Rias just looked at her, purposefully unperturbed. "No-!"
"Devils don't go after people's souls, Kiyome," Rias explained. Huh? Oh, wait, she was foreign, so she was probably just explaining theology to Kiyome. That made sense. "I didn't realize that he was under your protection."
"Well, he is! We'll be getting married soon enough-"
"He just told me he's fucking the whole tennis club." Rias! I mean, she already knows, but still! What if she hadn't?! I'd be dead! Dead! Or at least no longer able to plunge my cock in between her breasts, which would be almost as bad!
"Yes, and? I helped him do that."
"You..."
"I helped him. I started with Akira, since she's a bit of a slut. Then I brought in Kimie, since she's so peppy. From there, with three members raving about how good he was, how could the other four resist my Issei? His power and masculinity is unmatched, and all the tennis club has become hopelessly addicted to sex with him, doomed to become his harem." Wait, you're making me seem like a bad guy, Kiyome!
"For the record, I disagree with this framing!"
"Silence," Rias declared, her aura of raw danger becoming even more powerful.
"Do you want me to call on my monsters to fight you off, devil? This man is mine," Kiyome said, moving between the two of us, as if to protect me, which was very sweet but also I was a 190cm slab of man-meat with super-boosted strength so I didn't need it. "Begone, fiend!"
"Summon monsters?" I asked. "Like a Pokemon duel? Or Yu-Gi-Oh? I didn't know you were into that-"
"You haven't even told Issei about this matter?" Rias sounded smug about the fact that I didn't know that my girlfriend was a cute geek, but that was gap moe! The elite tennis player with the elegant style, who was also into children's games-!
"Our love can overcome such a secret!" Well, yes, since it's just cute, Kiyome-chan! What kind of guy would be mad his girlfriend was into Pokemon?! She glared at Rias for another couple seconds. "Your refusal to depart has forced my hand. Harpy!" She swung her hand into the air in an elaborate flourish. So chuuni, I thought.
It was then that a literal flying monster swept down from the sky, only missing Rias by inches as she ducked back. "Aww, man," the female monster said. She had big breasts! However, she also had wings covering her arms in feathers, and a bird's claws, as she scraped against the ground for a few moments, before arresting her motion and turning back around. "I was hoping I'd win easy."
"You thought you could defeat Rias of the Gremory clan in a single strike?" Rias sounded smug, and black bat wings sprouted from her back.
"I mean, you guys don't think in three dimensions," the bird said with a shrug. "Even if you've got wings, you're not built for flight like me."
Wait. Wait. Hang on. Hold on.
This... this was beyond chuuni, wasn't it?
Wasn't this just regular paranormal stuff?!? Was Rias actually a she-devil? Was Kiyome actually a real monster trainer, and not like a secret top-level Pokemon player who wins all the tournaments wearing a mask to hide her true identity because it would bring shame upon the venerable Abe clan?!
"What's going on?" I asked.
"Don't worry, Issei. I will protect you, just as you have protected my purity!"
"Wait, are you a virgin-?" Rias asked.
"No!" Kiyome and I said as one.
"He merely has yet to creampie me," Kiyome said, "or to claim my ass! I know he must have been struggling!"
"Wait, do you want to do anal?" I guess I kind of had gotten that vibe once or twice, but I'd thought it was just that she had a really nice butt... "No! Wait! What's going on?! Why is there a monstergirl with big boobs? Why does Rias have bat wings?!"
"Ha... I can't just let you fill his head with nonsense," Rias said, crossing her arms. "We should all sit down and have a serious discussion, since now you've gotten us in this situation."
"Wha-!" I began. "Kiyome didn't create this situation, you did!" I pointed my finger right at Rias, who seemed stunned. "How is it your business that I'm fucking the whole tennis club? If anything, I should be fucking even more girls, since apparently Kiyome has a cute big-boobed harpy she's friends with!"
"C-cute?" The Harpy asked, blushing and glancing away. "A boy thinks I'm cute... a human boy... ohhh..." I could hear her lick her lips. Cute! Possibly dangerous, but cute!
"See?!" Kiyome said. "Our love is invincible! Begone, devil!"
"I mean, I would like to know what's going on, though," I admitted.
Kiyome paused at that. "Do not agree to any deal with Rias," she said, making Rias roll her eyes. "She is a devil, and wishes for your immortal soul, to slake her inhuman thirsts."
"We don't do that sort of thing any more, Kiyome. I've never taken anyone's soul, and I have no intention of doing so, either," Rias explained, her voice level.
"So you claim," Kiyome said. "My love... this will be the most dangerous moment of your life. I had hoped to shield you from these horrors, at least for a little while...!"
"Seriously, I'm not going to do anything," Rias said, massaging her forehead.
"She's just like this sometimes," the Harpy said. "She can't shut up about Issei either. Issei's dick is so big. Issei's so strong. Issei can make me come with a touch. But she wouldn't let me even meet him, and he thinks I'm cute!"
"Let's just find a private place to talk," I suggested. "I mean, uh, if this stuff is a secret, we shouldn't be talking about it at the gates, right?"
"There's magic keeping normies away," the Harpy said. "But yeah... I guess it's better to do it inside. Can we at least do a gymnasium or something? You people put your roofs so low..."
"Fine," Rias agreed, and the four of us made our way onto campus.
"Do you really think I'm cute?" The Harpy asked, leaning in to me.
"My precious Issei would never lie! After all this is over, you should fuck him too!"
"W-well..." the Harpy said, blushing bright red. "I mean..."
Next time! Our meeting actually takes place!
You can read the next chapter on my Subscribestar at https://subscribestar.adult/posts/1629425, for the low price of just $3. It features Issei spending some time with Rias and the Harpy.