[Chapter by Starmage595]

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"M-Mother."

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"P-Please say something."

Rias' mother, Venelana had been quiet for a few minutes now. The two sitting in the privacy of Rias' room away from the rest of the family. Rias had come down to visit and deal with high-class devil business. Things went normally, she discussed how school was going, jobs in kuoh town, and the matter came to her relationship with Issei.

("W-W-W-Well... I would say things are progressing smoothly."

"That is good to hear."

"Hmmmm.")

She had opted not to reveal that she and Issei had already had sex, or that the entire group had been fucking for a while. Issei's parents already knew but with how big the house was they could be a good distance, but she really didn't want her parents to know. Her father seemed to except her answer, but her mother was looking at her with suspicion. When they finished talking as a family Venelana whispered into her ear.

(I'll be by your room later."

"Huh?!")

And here they were now sitting across from one another in the most awkward silence.

"(I thought I washed the scent off; I mean we did have sex before I left, but I couldn't just let the others all have a chance without me getting in a few rounds.)"

The door opened revealing Rias' sister-in-law Grayfia, currently in maid form she brought tea with her.

"Here you go Lady Gremory."

"Thank you Grayfia, you can leave us now."

She bowed as she carried the tray out with her, Venelana picked up her teacup as she sipped from it, looking at her daughter.

"Well, aren't you also going to enjoy the tea."

"Oh, r-right."

Still shaky, she picked up the cup and also sipped, she tried to get a measure of her mother's face to see if she could figure her out. But it was stoic, calm, nothing to read. She took a sip. As both finished their sips together, they sat their cup down.

"So, Rias... how was Issei during his first time."

"H-Huh, I don't know what you're talking about we- "

"Oh, don't try to play innocent Rias, you can fool your father but not me."

"But how."

"I've had a similar face, happy content after sleeping with the one you love, the other girls in your father's harem all have similar faces just like me."

"Oh, so what, are you going to tell us to practice safe sex or to back- "

"Of course, not sweetie."

Rias had been taken aback, she thought that once she learned the two would go through some long sex education class, but her mother seemed fine with it.

"Me and your father were already in an intimate relationship at your ages, so I don't want to be the prude mother who tells you not to do so, I just want to make sure he is doing okay and is pleasing you, so... let's hear how it is going."

"M-Mother?!"

"No buts, you can consider this your punishment for keeping things from your mother.
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"Hmm Hmm, seems like your sex life is so full of life."

"Ooooh, this is so humiliating."

Rias recounted her first time after being afflicted with the succubus' magic, and many of the other times afterwards, whether it be just solo with just the two, or with one of the other haremette's. Each story felt so humiliating to tell her mother each one, but she kept wanting a new story.

"It reminds me of your father and myself, oooh, just every night we had the chance- "

"Mom!"

Venelana laughed to herself, enjoying teasing her precious daughter regarding her love life, but there was still one thing plaguing her.

"So, how has procreation gone for you."

"Huh?"

"Making a child, as the leading lady of the harem you should be the first of them to become pregnant, last I checked there were a couple of baby-hungry girls amongst you all, Akeno for example and if Kuroka is also in on it now that may also be a thing."

Rias knew her mother had a point, Akeno was already a lot, if she had the chance, she would drag Issei away for a quickie whenever she could, she made clear that she couldn't wait to become pregnant with Issei's child. She remembered when they arrived to meet with their college friends, she clung to Issei's side with a giddy smile. Rias knew they had sex before getting here, they were a bit sweaty despite not being too far, and he knew thar scent and saw a little dripping down her leg.

("Wow, you two look so lovey-dovey."

"Yeah, almost like a married couple.")

Akeno giggled to herself as she sat down, once Issei also took a seat, she slid hers closer to him as she nuzzled against his cheek.

("We both have already decided tie the knot after I graduate, our honeymoon will be just one long sex romp until I'm pregnant, our bodies melting into one- "

"A-Akeno, don't just bring up something like that with- "

"Kyahhhhh, Akeno is so mature, to already be preparing for motherhood."

"Oooh, I wish I was just as mature as you."

"Tch."

"Oh, don't be so sour Rias, I know showing affection with your darling can be hard, but you don't have to hate the game I'm playing.")

But Kuroka was even worse, Koneko tried to keep her at bay, but it was just a few words and then she was stepping to the beat of her drum. The nekomata siblings often taking his cock for hours. That's not even getting into Xenovia and the effect she had on Asia and Irina.

"Oh, I wished you had come to me earlier my daughter, I thought you would be ready for the responsibility of being your man's number 1, but you still need help."

"What do you mean mother?"

"Oh, don't worry, I will give the two of you some serious baby-making time right now."

Venelana had a smirk on her face, as she proceeded to create a magic circle, Rias wondered what she was planning before-

"Ahhhhhhh, time to enjoy this strawberry cheesecake and... h-huh?! V-Venelana, but aren't you-"

"Issei?!"

Issei appeared out of nowhere, seems like Venelana used her magic to summon him.

"Apologies Issei-kun, but you are needed for a bit."
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"M-Mother! This is ridiculous, me and Issei- "

"Now, now, don't take what I am giving you for granted. Just take the time to make lots of memories, and specifically children, for a bit. I will see you later."

"Mother, Mother!"

Rattle, Rattle.

"Rias tried to open the door that she was standing in front of. Venelana led them to this room and locked them in. She sighed to herself as she moved over to the bed.

"I'm so sorry for this Issei, I didn't think mother would go for this."

"I-It's okay, I wasn't doing much, just waiting for the next girl to want it... hee hee."

"Right."

Rias knew this room, Venelana had offered this as a chance to get Issei to confess when he was still being dodgy about it. It was effectively a Gremory love nest, throughout the history of her family, many of her ancestors would be locked in this room with their beloved, tasked with only one specific task, giving birth to children, it was a sparse room with a bed, low lights, an adjoining bathroom with tub. The cabinets were labeled as lingerie/costume, toys and an assortment of naughty items. This room only had one thing that should be done, and it would be a while before Venelana came back for them.

"(It's just me and...)"

She wouldn't deny that she was jealous of having to share Issei with so many others. Those first couple of days before Asia decided to join in, having his sole attention. Now a days with many of them thirsting for another round, it may start out as that but more joined in certain romps, so his focus had to be on others. She knew that but, in her heart, she realized just how selfish she wanted to be with him still.

"S-So ummmm, I guess since there really isn't much to do- "

"Huh?"

"I mean, if we can't get out until your mother comes back, we can either sit next to each other or- "

Issei got closer, their faces as close as they could be, Rias felt her need growing, he had a point, so if they didn't have much to do.

CHU

Rias planted a kiss on Issei's lip, the small pecks became longer lip-locks as they made out. Rias purring into the kiss as she held Issei closely, their tongues dancing against one another. It was a favorite thing they did when they were alone in bed at night, they lay close to each other and just make out for as long as they could, nothing more than that, it was so loving and intimate. But now.

"Pah, yeah, I guess we should make use of this."
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"Ahhh, mmmmm, Issei."

Rias pushed Issei onto the bed as they continued to make out, holding her dear fiancée tightly as their tongues danced against each other.

"Ahhhh, I love you, Rias."

"I love you too, I love you so much."

The exchanges of love continued as they made out. Rias didn't feel like she was in a hurry, there was no Asia, no Akeno, no Koneko or Xenovia or any other girl to interrupt wanting to jump in. They were completely alone in this love nest. Issei enjoyed how tightly she hugged and pushed her tits right into his chest, feeling her soft oppai so close was turning him on like nothing could ever do. And Rias felt his bulge pushing against her."

"Pah, geez, you just hard from kissing."

"Sorry, your boobs are- "

"Hee hee, I know that these drive you wild."

Rias got on her knees she unbuttoned the top of her blouse, revealing the valley of chest and a place perfect for his cock.

"Well then how about using your favorite boob-pussy then, stuff your cock right in here to feel my plush tits."

"G-Guh."

Issei's shaky hands unzipped his pants as he fished out his cock, its impressive length caused Rias' pussy to quiver, as he lined up with the boob-pussy that Rias created for him to use. Making himself steady by placing his hands on her shoulder. He started to thrust into her chest.

"Ooooooh, Rias' breast are the best breast in the world."

"Enjoying yourself, just keep thrusting your cock right into my bosom, and once you feel like cumming, stain my boobs with your cum."

Rias simply sat on her knees as Issei used her tits as a masturbation tool, enjoying his girthy and rigid cock rubbing against her tit flesh. She felt her body warming with need with each thrust. Issei felt his knees slowly turning to jelly, the softness of Rias' chest enveloping his cock in perfect softness.

"Ahhhhh Rias, so.... Good."

"Come now, cum, give me your seed!"

"Grahhhhhh!"

SPLURT, SQUISH, PAFF

Rias felt her breast becoming quite warm as Issei unleashed a spurt of seed into her chest, cum felt like it was coming out of the top of her cleavage as it started to stain her blouse. Soon it enveloped her full chest by the time.

"Jeez, I really like this shirt, it's going to take a couple of washes to get this scent out of it."

"Hah, hah, hah."

As Issei pulled out his cock, cum oozing out of her chest as he fell onto the bed. Rias licked her lips and the semen covered cock as she went for a lick.

"Hear, let me clean this up really quickly."

Rias proceed to clean his cock, causing Issei to squirm at her touch as she sucked and licked all over it, with a pop it was clean with a little bit of sperm dripping from her mouth as she took her finger to get it to swallow. Proceeded to take off her blouse, looking at her chest smeared in cum as it dripped out of her boob valley, her shirt also had an addictive scent to it with Issei's cock and semen scenting it.

"(Oooooh, I never want to wash this now, I want to keep it as emergency masturbation material if Issei isn't available, but it is such a nice shirt.)"

Rias without realizing it found herself sniffing it, Issei looked on as his girlfriend sniffed her shirt with a perverse excitement, he felt his cock get bigger watching it.

"R-Rias!"

Issei went over to fondle her chest, earning a yelp from the girl, as she was surprised.

"Geez, you don't have to be in such a hurry... we have plenty of time, why not see what they have in the drawers."
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Meanwhile in another room.

"Hmmm, her paizuri definitely is really good, but his cock still had some cum on it, her cleanup blowjob still has some works."

"Lady Gremory, isn't this... an invasion of privacy."

Venelana and Grayfia was watching what was going on in the room as the two made love. Venelana writing notes of what she would talk to her about.

"I just want to make sure she is the perfect wife, as the top wife she should be second to none in regard to sex."

"Even still..."

Grayfia tried to avert her eyes, but she found her eyes continuing to stare at them, it was wrong... but she wanted to keep watching.

"Also, you don't have to hide if you're enjoying it... I've been fingering myself for a bit."

Venelana smiled to her daughter-in-law/ servant as she revealed that her finger had been working on her snatch.
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"So... how are you enjoying it."

Rias decided to tease him going through a couple of outfits. From cosplay as a naughty schoolgirl, secretary, before going for the lingerie, Issei just looked at her, each outfit even more stunning. The way her chest was perfectly shaped by each outfit, he wanted to touch himself, but didn't want her to feel out. Though Rias felt her pussy get wetter as Issei ogled her. She didn't know why it was more than usual. Maybe it was just the atmosphere. Soon she landed on a red lace chemise, shorter than the usual sleepwear and see-through. Rias gave herself a twirl, allowing her snatch to be visible to Issei as she finished him off with a wink.

"Uheeheeee, Rias... your... stunning"

"Hee hee, you always know what to say, now then."

Rias lifted the bottom of her skirt up, revealing her sopping wet pussy, all thanks to Issei's eyes.

"The day is still young, make sure to fill me up with as much cum as you can."

Rias sat on his lap, the two kissing again as Rias lowered herself on top of him slowly, but once the head of his cock entered her pussy, she soon started bouncing and picking up speed as pleasure infected her brain.

"Ahhhhhh, Issei, Issei, we've done this so much but your cock... your cock feels just as good as the first time, what about me?"

"R-Rias' pussy and boobs... are the best."

Rias felt her heart flutter as he stated that she was the best. Even with other bombshells like Akeno and Kuroka. She was still the favorite, as Issei pressed his face into her chest, pulling down the top of her chemise and letting her magnificent chest and licked at her nipple, caused her to squirm.

"Ooooh, you big baby, are you hoping to make them bigger, though... I guess they are a centimeter bigger since we started having sex."

"Mmmmph!?"

The mention of how the potential of growth caused Issei to go into overdrive, moving between the two as Rias hugged him even tighter.

"Oooooooh, oh my god. S-so amazing."

"Gh, Rias."

With strength Issei moved their copulation from sitting to missionary, going right at her neck with Kisses."

"Oooooh Issei, your arms... your kisses-"

"Pah... you're so stunning in this chemise."

Rias looked him in the eyes desperate for more kisses as Issei pressed his tongue into her mouth.

"Mmmmmmm."

The red-haired princess felt love boiling over, her arms wrapping around him tightly as he plunged deep into her pussy, brushing right up with the entrance to her womb. Each thrust felt like her defenses were being broken down. As she felt his cockhead enter her womb, she came hard.

"Ahhhhh, I'm coming! Just entering is making my pussy cum."

Maybe it was the atmosphere or the fact that they hadn't been alone for as long as they had been, but she felt even more turned on as a result.

"Ahhhhhh, cum inside Issei, let us build a happy beautiful family to raise."

"R-Rias."

Images of Rias' pregnant body flashed in his mind, her expanded chest, with milk leaking out of her breasts, but much more beautiful was the children gathered around at their mother, and while he adored boobs, the image of the happy children pushed him on even to be faster."

"Orrrahhhhh!"

"Ahhhh, yes! Keep thrusting like that, cum as you thrust, also kiss me and hug me tightly."

Rias' demands came quickly and plentiful, she may have tried to put the image of the king of her peerage. But behind all of that was just a girl his age who wanted to feel love, his hands went around her back as she crossed her legs, keeping him in place. His thrust staying deep and shallow as he prepared for a breeding creampie.

"C-Cumming."

"Yes, cumming!!!!"

Issei's cum didn't have to travel far, already fucking her womb he unleashed hi virile seed inside of his fiancée and most precious girl. Rias for her part head flew back as he felt the incredible sensation of Issei draining his balls inside of her. She came just as hard, trying to coax as much cum out of him as she could as he came. The two kissing as his balls drained another load. Soon issei pulled out of the girl of his dreams as she enjoyed the bliss of her post-climax euphoria.

"Ooooh, S-so much."

"R-Rias... I need- "

"Oh, you need to cum again, you cheeky little monkey, what am I going to do with you, I'll just have to drain you of everything until you are satisfied.
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"GO! FIGHT! COCK! FUCK!"

"Uoooh, Cheerleader Rias is so sexy."

They had plenty of outfits, and Issei was adamant about the cheerleader outfit. A black sports bra and skirt that struggled to contain her chest and with ever leg lift, the G-string could be viewed by Issei. He enjoyed the solo show he was getting from her as his erection throbbed. To the point that he couldn't take it as he leaped into her back to grope her.

"Kyahhhhh! Ooooh, looks like Issei's ready for another round of breeding, let's hear it for Issei and his unmatched Cock! Cock! Cock! Cock!"

Issei continued to fondle her chest as his cock continued to fuck her. Meanwhile Rias continued trying to continue her routine.

"1! 2! 1! 2! Ahhhhhhhh, fuck me."

Rias soon gave into the pleasure as she focused on bouncing on his dick. Issei soon pulled out her boobs from the sports bra and fondled them.

"Uooooh, Issei's hands are so naughty! Let's give a shout out to Issei's naughty fingers!"

"Guh, when I'm so close to someone so gorgeous I couldn't stop myself."

"Geez, you silver-tongued playboy!"

Rias turned her head around to give him a peck on the lips as Issei soon pushed her down to piston his cock right into her pussy. Descending into her pussy, Rias felt like he was scooping her pussy out.

"Ahhhhhhh, n-not so fast, I-I'll go crazy!"

"Ooooh, but Rias is too sexy, can't stop my hips."

Rias words may seem like she didn't want it, but she absolutely adored the attention, his cock reaching so deep and fucking her was so incredible. She felt her body start to go limp from just how good things felt, the desire and attention she got all that kept her sane as Issei quelled his own.

"C-Cumming."

"Ahhhh!"

Rias felt another load enter her womb, her pussy guzzling down cum in hopes of being pregnant. Part of it was to do that, but she adored being alone with him for a while.
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"Rias, I think we've washed off the sweat cum that had caked your body, do you want to get out."

"No way."

Rias leaned back into Issei, the two having hopped into the bath to rejuvenate themselves with the special bath bomb prepared. As she did, she felt his cock hotdogging itself right between her ass cheeks
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"I want to cuddle next to Issei in the bath for a few more minutes, I wish we could just forget about the rest of the world and just stay like this."

"W-Well our bodies would prune if we spent all day in the water."

"What do you think magic is for, we can unpruned our bodies in a flash."

Rias proceeded to gently kiss Issei, sitting on his cock she decided to just enjoy this feeling of being full before they went at full throttle.
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"A-Are you sure about this."

Issei looked as Rias laid on the bed. Her hands bound together as her eyes darted around as her pussy, glistening with anticipation and dripping onto the bed.

"W-W-W-Well, I just wanted to let you have full control for this, so being bound makes me nothing more than a cock sleeve."

Whenever they had sex, Rias did sometimes put in some control, whether she was on top or during when Issei was pounding her. But a part of her wanted this, too, to lose the control she had as a princess and be nothing more than an outlet for Issei's lust.

"Okay, but if things start to feel uncomfortable, just... kick your legs into- "

"Shut and get over here right now, you have a girl begging for your dick, so come on!"

Rias shuffled to spread her legs apart to entice him. Issei got onto the bed as he proceeded to grip her hips. Rias felt her body tingle in excitement as he felt his cock brush against her pussy. Her spine shivered as she couldn't even press herself back. She needed it badly.

"Kuuuh, how much longer will you attempt to embarrass me, please! Plow your thick cock inside of my shameless pussy, I don't care what happens to me, just make me feel amazing!"

Rias' shameless begging for his cock was all Issei needed, like a part of him wanted to see his proud girlfriend beg for him like that. Nd he soon was inside of her.

"Ahhhhhhhhhh!"

Rias didn't know why this felt different, his dick was still the same size, same filling thickness she was well aware of. But maybe it was the fact that she couldn't look back at him as her face was pressed into the bed by Issei's weight. The bed that they had been fucking in for hours had their scents mixed together, and his scent drove her crazy.

"R-Rias... your so... tight."

"Ahhhhh, but you feel so good, getting fucked while you shove my face into the bed full of your scent... I can't help but coil around your cock! Harder, faster, right now I am not the heiress of the Gremory family, just a girl desperate for cock!"

Rias' desperate please for rougher treatment sent Issei into overdrive, gripping her butt as he pressed his cock even deeper. He proceeded to breathe into her ear which to her was completely unfair, but the pleasure she was feeling was insane, nothing she had ever felt before, and upon feeling his dick enter her womb. Rias came hard.

"Ahhhhhhh, cumming, cumming!"

"Guh!"

Rias' climax caused her pussy to coil harder around his dick. Her eyes slowly went into her head as Issei treated her like an onahole.

("Oooooh, this isn't good, every thrust feels like he is breaking me down, turning me into the servant and him the lord, his hands are like electric, and I can't do anything! I've allowed Issei to turn me into a cock Sleeve... and I want him to do it more often.")

"Orrrahhhhh!"

Issei found his reasoning slowly leaving him, the respect and devotion turning more into lust and desperation and being the tit man, he was he turned her around to start sucking on them.

"Nooooo, not my breast, if you suck on them, I'll completely sucummmmmmmbb!!!"

"Mmmmmmm."

Issei's right hand groped and played with her left breast while his mouth suckled on her right tit, taking licks around it. Her mind slowly clouding over by lustful desires as Issei pounded her pussy and played with her tits.

"I-Issei, ahhhhh!! You're so rough, you don't have to be so rough, these breasts will always be around for you to do with whatever you want."

"I know that! These tits have belonged to me for as long as I owned your virginity."

Issei bringing up his boast when he saved her from her engagement, then it was embarrassing but right now, it made her heart flutter. She could feel it as Issei roughly loved her tits as he throbbed inside
of her.

"Hrgh, Cumming."

"YES!! Fill me up, let my womb drink up all of your cum!"

Issei didn't need to be told that as he came hard, drowning her pussy and womb with a maelstrom of cum, Rias letting out a scream of carnal pleasure as her lover filled her up once more, but it wasn't enough, it was never going to be enough, and she had a way to make sure tonight she was going to get all that she wanted.

"Hee, Hee, so full, but I can feel it, still so hard, you monkey dragon. How about I do some of the work now."

Rias looked back at him, her eyes begging to keep on fucking, and who was he to ignore her.
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"Mmmmmmmm, mmmmmm"

KISS, SMOOCH, PAH

Rias sat atop of him, hands still tied behind her as she leaned down for a kiss, as their tongue's danced against each other as she opted for a shallower thrust as her ass bounced against his crotch.

"Ooooh, Issei's kisses are so lewd, we used to have such gentle cuddling kisses, I want to kiss like this forever!"

"R-Rias, keep bouncing."

Rias soon ended the kiss as she proceeded to bounce atop him, Issei taking in the statuesque stunner of a girlfriend he had, her breasts bouncing as she pleasured herself and him with her bouncing, and the beautiful crimson hair, sweat dolloping specific points, they hadn't been in the bath for a while, it felt like their skin was sticking together, like they were one person connected with one another. Issei absolutely didn't want this to end, the feeling of her tight pussy around his cock, her tits on his face it was absolute bliss.

"Ahhhh, Issssseiiii, keep up this pace, I need this!"

The once refined and regal princess was replaced by any girl desperate to quell the heat she felt as Issei kept fucking, piercing her womb as she slowly converted her into a cock sleeve, and unbeknownst to Issei, Rias was prepping a spell, if there was ever a good chance for pregnancy, this was it.

"Hurry, cum inside me, fill me, let my womb have another fill of your delicious creampie, so fulfilling."

"Guh, yes, I going to fill your womb again!"

Issei didn't know why but he really wanted it now more than ever to cum, to fill her, he gripped her hips as he pulled her down on top of him, Rias throwing her head back as she felt him about to climax, to unleash his seed and once it was done, her trap would be set.

"Cumming!"

The two lovers yelled out as a flood of cum shot up into Rias womb, the feeling of absolute nirvana as each shot flowed out of Issei's cock and her pussy coiling around his dick. But as he continued to cum, Issei felt his cock for some reason getting even bigger inside of her as he kept pumping inside of her, soon moving became quite difficult.

"W-What."

"Hee hee, caught you."

Rias proceeded to undo the knots, very clearly, she practiced escaping as she snuggled up to Issei.

"Rias... what did you- "

"Oh, don't worry, its nothing dangerous, I just used a spell to make your cock knot me, it'll be a bit before it shrinks and you can remove it, but until them, you'll cum as your cock enjoys the snugness of my pussy."

Rias gyrated her hips as she kissed his forehead.

"So why not just enjoy each other's company, as you proceed to finally breed a child inside of me wouldn't you say."

Issei really couldn't believe it, but it seemed that she was right about the knotting. As she cupped his head, he simply decided to kiss her, the two enjoying the slower paced sex as things quieted down.
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"Ahhhh, that's my daughter, I knew you had something up your sleeve and you didn't disappoint."

Venelana watched her daughter and her soon to be son-in-law cuddling against each other as they waited for his magic knot to loosen. Of course, watching them go at it like animals was a bit too much for the mother, who pushed her dress up and had been masturbating to what had happened, some may have found it fucked up, but there was something erotic to it that just got her wet.

"Oooh, I need it, I don't know if Zeoticus is planning anything but he's not doing anything, all he will be doing is fucking me into a nice gooey mess."