[Chapter by StarNSFW595 (Starmage595)]

"Hmm hmmm... hmmmmm, Roygun, I think you can pull it off."

Roygun was standing in front of a mirror in the nurse's office, admiring herself in a different nurse's outfit, one that was a little smaller than usual, her large breasts straining against the fabric with plenty of cleavage on display. And the skirt basically didn't cover her ass or the cherry thong she wore. If she had shown up to work like this, she likely would get fired for indecent exposure and leave plenty of the boys with rock hard dicks. But it was for only one boy, she was already planning for another one of their sessions, and she knew the moment he walked in, he was going to be all over her, his hands groping her and ripping the outfit to shreds to get access to her bountiful body.

"Ahem... what on earth are you doing?"

Roygun was brought out of her reverie by a stern voice, quickly wiping the little bit of drool and turning around to see Rossweisse, she had a hand on her hip as she was judging her hardcore

"Ah, good afternoon Rossweisse, what do I owe the pleasure of your presence at this moment?"

"Hmph, I just came over here regarding your behavior as of late, and it very much has to do with you dressing so... lewd."

"Oh, what can be the issue, I am just was... seeing if this outfit still fit me... and as you can see, it really is struggling to fit."

"Hmph, so you're planning on changing into a different outfit before you drag Issei in here."

"And what's wrong, the other boys can be... quite rough."

Roygun was trying to play coy about it, but Rossweisse was taking none of it.

"Oh really, so that's why you have dragged him away, he has missed some key classes as of late."

"It's not like they are important, and memory spells can make them remember he as there."

"Even still you are abusing your position of power, Issei still needs to- "

"Oh, so what is it that you are wearing."

Roygun walked up to the former Valkyrie, flipping her skirt revealing Rossweisse wearing her own thong that was barely there, blushed with embarrassment, Rossweisse flipped her skirt down and looked at the new nurse.

"Hey, don't just do that."

"You know, you're trying to be the responsible one, but I have heard how you've held Issei back regarding behavioral issues, a couple of days."

"I-I am just making sure that Issei is not going around sticking his dick in whatever girl walks around."

"Oh, is it just that you want some alone time with him, I would say you need to have more confidence in yourself."

Roygun went up to her as she started to fondle her breasts earning a yelp from the silver haired beauty.

"They are not Rias levels, but they still have plenty of bounce to them, you just wear a skimpy bikini, or a tube top a size too small, and he would be all over you."

"T-This is sexual harassment!"

"Oh, don't treat me like that, I am just trying to help you, seeing as we both are teachers and we have quite the student on our hands, so instead of trying to argue about it, we instead work together to make a nice lesson for him."

As Roygun continued to grope Rossweisse tits, earning whimpers and moans from the Valkyrie, as she got more of an idea to make this the most tantalizing lesson for Issei yet.
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("Issei... promise me that you will not keep falling for Roygun's traps... you still have your studies and spending them fucking... while nice is not something you should do.")

Rias warning to him played in his mind, getting a text during lunch to meet Roygun, an image of her flashing her breasts at him. As much as it would be enjoyable to spend lunch doing this. The pervert in him absolutely wanted it, to spend lunch enjoying it, it wasn't like the girls had taken him for quikies during lunch and other break periods, but Roygun had always been the one who often dragged him out of specific classes, Rias claimed to have talked to her and told her to not abuse that position, but it likely would also come down to Issei, he needed to put his foot down, tell her that they could still do it but it would have to be done at his place or after school. And now that he was in front of the Nurse office, he took a nice deep breath, slapped his face, and place his hand on the handle and opened the door.

"I'm here."

"Ahhhh... nice of you to come in."

Roygun was sat in a chair, facing away from Issei, only her cherry blossom hair letting Issei know it was her, or maybe a dummy with a wig on it, but as she turned it was clearly her, wearing only a doctor's coat, just hiding her nipples from view but her plush oppai just in view teasing him, she of course was protecting her womanhood by wearing a pair of panties, though it was a thin thong that barely hid the important bits. Already inside and issei could feel his resistances starting to fail him staring at the bombshell high-class devil.

"H-Hey there, w-well ummm, I feel we need to talk about our- "

"Yes, there is something, specifically that for this lesson we have a rather special guest, she was wanting to help with our lesson for the day... Come on, why be so embarrassed, he's seen you naked so
many times, what is different with that outfit."

With a bit of Hesitation, Rossweisse came out from behind the curtain, wearing the nurses outfit that was a size too small for her, not as much as it was on Roygun but plenty of cleavage and the skirt was still non-existent, Rossweisse was about as red as she was when she was drunk, as she tried to pull the top of the outfit down as to hide her ass. As she side-eyed Issei. Whose crotch started to bulge out, completely forgetting about discussing sex at school.

"Now my sexy little assistant, lead him over to the bed."

"Y-Yes."

Issei's legs felt like lead staring at them, so Rossweisse had to drag him to the bed, sitting him down as she proceeds to unzip his pants to get access to his cock.

"Ahhhh, your already on point Mrs. Rossweisse, getting out his dick."

Roygun got up as she got closer to her, joining her in order to start jerking his dick up to full mast, Issei moaning at their soft hands on his cock. Roygun licking her lips at what was going to happen as Rossweisse shuddered as she felt her pussy quivering at the sight.

"Good, now your nice and hard, why not let's get what your next lesson should be."

Roygun proceeded to move over to the other bed in the nurse's office, laying down facing him as she opened her mouth.

"Now, take that large cock and shove it down my throat, now don't be too kind to me, I want you to shove it down to the base, even if you think I am in pain, don't worry, a woman sometimes wants to be treated like an onahole, to enjoy it when their man is nice and rough with them."

Issei had no idea if it truly was the case, between his lessons with her and Venelana, but as he got his cock right in front of her, it was so tantalizing a thought of skull fucking, she heard about how Xenovia had done this, and she wanted to see if she could improve his skull fucking. As his cock pressed at her lips, the scent of it invaded her nose, as she felt her heart fluttering.

"Now, come now, all you have to do is just shove it down my throat, don't worry, I can take whatever you can."

"Hah... Hah... Hah."

Staring at Roygun's sexy face, her mouth in a lewd o-shape as she begged for it, as he gripped her horns to give him some leverage as he shoved his cock down her throat, filling it out as he began to thrust into it.

"Mmmmmpppphhhhhh, mmmmmmm, gack!"

Roygun quickly had to get use to the size of cock shoved into her throat, but her experience with this meant she knew what to expect, as Issei fell into a routine, with Rossweisse pressing into Issei's back.

"A-Allow me to help you keep yourself hard and stiff as you enjoy your onahole doctor."

Rossweisse had undone a button on the blouse as she pressed her bare breasts into his back, as he had picked up his pace.

"(Oh, nothing beats when the man is shoving in with full force, going straight into gullet.)"

SLISH SCHLUP, SLOSH

PLAP PLAP PLAP

"(Woah. He really is going to town on her... I wonder if I could... take his cock like that.)"

Rossweisse took in Issei's feature and saw his member sliding in and out of Roygun's throat. A few tears were streaming down her face, but she looked absolutely giddy from the feeling his dick fucking her throat. She could feel her own unattended snatch becoming wetter with each passing moment, though nowhere near as much as Roygun, who was almost like a flood of lady cum starting to stain the bed. And her moans let Issei know how good a job he was doing. his hands gripping even tighter on her horns as she felt his cock filling her throat out even more, each thrust causing her to gag, and as Issei sped up Rossweisse began to whisper into his ears.

"Hurry up, cum down her throat, you need to show your other sensei how good your techniques have become, and you know it's not good to have a woman seeing how incredible your fucking is and expect her not to be even hornier than usual!"

Rossweisse was humping into his side, feeling her breast and thighs pressing against him, a large grown escaped his throat as he rolled his neck before, proceeding to grip tightly and place the base of his dick deep in her throat before, before unleashing a wave of cum, feeling it touch her throat made Roygun cum hard, eyes rolling into the back of her head as Corrin creamed her stomach, filling her up with what was going to be her lunch for the day, soon it started to bubble around her lips, as Rossweisse could feel her own pussy quiver staring at how much he was letting out, after a few moments, Issei's hands went lax as he fell backwards, Roygun engorged on his semen as lost in the semen that was now caking her face, a smile formed eyes still rolled up slightly. Issei tried to catch his breath, but Rossweisse was on him quickly.

"While the...doctor runs those tests on your cum... allow me to check to make sure everything is okay."

Moving him over to the other bed sitting him on the side of it, she knelt in between and stared up at the foot of cock meat before her. Glistening in his own and Roygun's cum.

"It appears you are still quite hard, looks like you are not tired yet, for a boy your age that is good."

Rossweisse's hand glided up and down his member, taking time also to squeeze both of his balls.

"So... heavy."

Rossweisse brought herself closer, gobbling one of his balls as her hands worked on stroking his dick. Issei gripped the bed sheets at his other teachers affection for him.

"R-Rossweisse."

"That is sensei at this moment, we still need to think of our-teacher-student relationship in regard to how we talk to each other, but I guess I can overlook it when you have such a nice face as you're getting pleasured.

Rossweisse moved to place her breast around his dick, wrapping him in oppai heaven as she worked her breast up and down.

"S-Sensei!"

"Yeah, just let yourself enjoy this, girls also like it when you let them take the lead."

Rossweisse pressed her breast together, wanting to show how her technique of tit fucking had improved over time, as issei laid back, a hand brushing through her hair and sending a chill down her spine.

"Mmmmmm, let make it even better."

Rossweisse proceeded to suck on the tip, focusing her tongue on it as her breast started to move in opposite directions, the frictions truly working their magic on Issei, whose hands gripped the bed even tighter than before.

"Mmmmppph... mmmmmmmm... mmmmmmmmm."

Rossweisse made sure his entire dick was entirely enveloped in her embrace. This lesson more just became a way for her to unleash her stress, but that didn't really matter to Issei, since his dick was in oppai heaven between her valley of tit flesh, and she was going to get rewarded for all her hard work.

"R-Rossweisse... aghhhh... fuck!"

Issei's word was the only warning she got, as his dick twitching soon became and explosion of semen, spurting out of his cock and into her mouth, she was taken by surprise as it was removed from her mouth as it covered her face in cum. But she quickly was able to trap it as she drank from it like a water fountain, gulping down each ounce of his load with plenty of skill you could expect from someone who had been around him enough times, and as he stopped bucking his hips into her face, she removed herself as a spit trail.

"Geez, you need to give girls more warning than that, I wasted so much across my body which could have been inside of me.

"S-Sorry."

"You better be, there is only one way to apologize for doing such an indecent things like sullying a maiden's face in semen and- "

"Oh, don't try to play the stern teacher, especially with you dripping."

Roygun's sultry voice filled the room, as her hand reached down beneath Rossweisse's skirt, finger her and earning a yelp from the girl who was surprised Issei only stared at what was happening.

"B-Belphegor, don't just- "

"Come now, we both are sharing him, so we are just as much able to touch each other as he is us."

Removing her fingers from her snatch revealing it glistening and sticky with Rossweisse's lady cum, taking a minute to lick her digits she soon brought it to Rossweisse's mouth, who was more than happy to taste herself than should be normal. And she licked her fingers for a few good minutes.

"Pah... Mrs. Belphe- "

"Why don't we change into something more... fitting for the hour we are at."
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Issei knelt on the bed as he stared at his two teachers, having swapped out the nurses outfit for gym uniforms, white shirt and navy blue bloomers digging into their sexy thighs as Issei struggled not to pounce, he needed to show patience.

"God, you barely are fitting into it, you're showing off your belly."

"And you on the other hand fit perfectly, I wonder to myself are you pretending to be a teacher or a student."

Rossweisse felt her cheeks flushing as Roygun confidently moved to sit next to Issei, with Rossweisse following after her, sitting next to him.

"So... shall we get the exercise in."

"Y-Y-Y-Y-Y-Yes!"

Roygun pushed him down as she motioned for Rossweisse to do what they had practiced, pressing their butts into his cock, earning moans and gasps from him.

"Gheeeee!"

"I know your more of a breast guy, hoping to cream our shirts, but you can't turn down a nice assjob between two girls."

"Hah... hah... I can feel Issei's cock against my... pussy"

While the two rubbed their asses, Issei found himself thrusting up into it, both girls struggling to keep their own moans down, as the light material meant they could feel his dick sandwiched between their cheeks.

"Ahhhh, just keep that up, you'll really need to be ready when you need to press deep into us."

"Ooooohhh... Issei... more!"

Issei, could feel his cock throbbing between the two of them, he obviously wanted their chests wrapped around his dick again, but he wouldn't turn down them mashing their butts against his dick, feeling the elasticity of the bloomers against him was something he truly enjoyed, and he made sure they knew it was coming soon.

"Ah... aahhh... ahhhh, don't you be coming too soon."

As if on command, Rossweisse also stopped, leaving Issei whimpering as he was left on the edge, but his eyes did enjoy the show, as the two quickly ripped the bloomers slightly to allow their pussies to be seen, as the two started to spread their legs.

"Now comes the most important exercise- "

"M-Make sure to unload everything inside, all shots now should be vaginal... to ensure the highest pregnancy chance."

Issei struggled to contain himself as he sat up to lunge at the two.

"Ahhhhhhhh... yes! I love it when you take me like this!"

He went for Rossweisse first, disappointing Roygun but she simply enjoyed the sight of another member of the harem she was a part of to get fucked. Rossweisse held him tight as he pumped into him.

"Uggghhhhh, kuh!"

"Yes, keep thrusting deep inside, let my pussy be the perfect piece of exercise equipment!"

Rossweisse simply enjoyed his work, having gotten him to this point as he kept thrusting deep into her pussy. Looking deep into his eyes as he earnestly thrusted deep into her.

"You don't mind if I join in too."

"R-Roygun!?"

"We both are his lovers, and I find you quite adorable."

Going up behind the duo, Roygun began to rim Issei as he proceeded to speed up his thrusts and make the even shallower, as Rossweisse struggled against such a feeling.

"A-Ahhhhh, soooo good... if you keep going, I'll- "

"Are you enjoying getting rimmed you dirty boy, no normal woman would be willing to lick a man's ass... but we are no normal women."

Issei could feel his body tensing up from it, his libido hitting its peak, slamming his hips into Rossweisse who simply laid there, struggling from trying to cum to early, but it was truly difficult, his cock having found her weak spots previously, so every thrust hit at a new one that wasn't prepared.

"F-Fuck... you really are so good at this, why can't you... put the same effort into the rest of your classes."

"Pah, obviously, he isn't being properly motivated, since he clearly is doing very well in this class."

She moved up, to press her breasts into his back, snorted as he kept pushing deeper, feeling his member throbbing each moment he spent deep in the Valkyrie's snatch, while Rossweisse wondered what she was going to say.

"Maybe it instead should be used as a reward in order to do well in classes, I looked up how to get the best out of your student and rewarding improvement and consistency is a good way."

"R-R-Reward?"

Rossweisse's mind began to wander, long tutoring sessions, wearing a kouh academy girls uniform, starting with kisses and getting progressively more steamy, something about it felt so wrong but she wanted to indulge in this teacher-student relationship for as long as they could, heck she may even move to being a university teacher just to keep it up.

"Though right now, I think the one in need of a reward is less him and more you."

"Ahhhh, let it out, let my womb drink your cum, don't worry if I get pregnant, we can just marry after you graduate, we can run the 100 yen shop together to give the best deals to everyone!"

Those fantasies saw her holding him close to her as he started bucking his hips, rutting deep inside as she felt the same glorious bursting of the dam that was his dick. Filling her and causing her to have the best orgasm, eyes rolling back and tongue hanging languidly outside of her mouth from the cavalcade of pleasure that was now affecting her. Roygun simply stared at her fellow teacher who looked like she was having the time of her life, staring down as cum began to flow out from the amount that was filling her snatch, licking her lips as she stared at her lover made a girl submit to pleasure.

"(Ahhhh, you really know how to entice a girl.)"

Roygun proceeded to pull away, as Issei finished inside, proceeded to pull out and let the last little spurts cover her belly and bit on her face, Rossweisse simply enjoying her afterglow forgetting the whole teaching part once more.

"Ehee hee hee, so full... so warm... A+ performance... Issei."

"Hah... hah... hah."

"Don't tell me that you are too tired to keep going."

Issei turned around to see Roygun on her knees as she spread her pussy in order to entice him, looking back at him. Wriggling her butt.

"When you have more than one girl, you have to be prepared to keep going, especially if they want you to really pound their pussy, get deep in there."

Issei was quickly on her, lining up with her pussy and groping her big ass, soon plowing right into the nurse. Who gripped the bed tightly feeling her lover deep inside of her.

"Ohhhhh... that's it Issei, your thrusting and grip on me is all top notch."

"Kuh... your so... goddamn tight.

"Ahhhh... yes... just keep pumping deep into me."

Roygun could feel him poking deep at her womb, every thrust proved that he was not some rookie. He was a god of sex and she really hoped virility. Her head getting pushed into the pillow the bed had. Simply letting her do what she wanted him to do.

SMACK

The ripple of her ass cheeks in the bloomers was almost hypnotic to Issei who enjoyed every moment of fucking her.

"H-Hey... give your teacher a kiss."

"G-Guh huh."

Issei leaned in even deeper to kiss her, the cherry haired nurse purring right back into it. Her mind flashing through to all the future landmarks. Their marriage, her in a beautiful dress as he brought her in for a kiss, their honeymoon fucking, to her in a bed giving birth to his children it was such a life that she was looking forward to it, of course the first thing that needed to do was get to that point and by extension having to wait for Rias on her end... though maybe there was Akeno who was always wanting to one up her... so it was kind of a weird thing.

PLAP PLAP PLAP PLAP

"A-Ahhhhhhhh!"

Though that really didn't matter as it was him thrusting into her and by extension with his tongue dancing against her. It was some of the best pleasures in her life. And she was more than happy to keep enjoying all of it.

"Hey... show your other teacher your kissing skill."

At some point, Rossweisse had gotten up as she was poking Issei's side to get his attention, which he was more than willing to attend to, as he brought her in close for a kiss, Roygun pouted at him ignoring her but was quickly placated by the cock rocking her world inside of her, thrusting deeper.

CHU KISS CHU

"Mmmmmmm."

"Ahhhhhh... don't forget I am the main focus, you get to play with both of us the same time after you've given me my first creampie. So, give it to me, let my noble lady pussy taste your seed."

Roygun made clear what she had wanted from Issei, who was more than willing to let him plow deep inside, her pussy already climaxing as she proceeded to squeezing down on it. Rossweisse licking at his balls in order to get her the fullest creampie imaginable.

"Loose balls always are the fullest climaxes, so let me help you."

"G-Guh huh... can't take it anymore."

Issei for his part finally creampied his other teacher, filling her to the brim as she also came hard, head resting against the pillow. Each moment becoming a new peak of pleasure.

"Oooohhhhh! So much, I can't imagine any other guy now... I hope you really are planning to take responsibility."

Issei pulled out, a little bit splashing onto her ass as she fell onto the bed, her creampied snatch oozing onto the bed, there would be a time to clean the sheets later, but not now.

"Hey... you better not be too tired out now."

"Yeah... the lesson is not even close to be over."

Roygun showing her experience was already recovering from her climax, joining Rossweisse in demanding more cum from him. Issei could only chuckle and feel a sweat drop... looks like he was going to need more.
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"Yes... just pump those digits deep inside... but don't forget the other girl!"

"Ahhh... ahhhhhh... fuck!"

Both girls laid next to each other as Issei got to work, shifting between the two, both now as nude as Issei as they indulge in it while attempting to make it clear that this was purely for lessons. But as he caused both to climax from the incredible feeling deep in them, the lesson as far away.
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"Here that should help you feel better."

"Thank you, Bel-Sensei... ummm."

"Is something the matter?"

"N-Nothing I just smell something... weird."

"Probably just some of the blood... there was a decent amount, try to be a little more careful."

"Mmmmmmphhh!"

"What was- "

"Probably just the wind there is nothing going on right now, why not head back to class and I would recommend getting your head out of those occult magazines."

"S-Sure... maybe you are right."

The student proceeded to walk out of the room, not realizing the splash she walked by, Roygun who quickly had thrown on an outfit which made her look like she had been hasty regarding something, smiled lewdly, with a flick of her wrist Issei and Rossweisse had become visible. Issei was standing perfectly still with Rossweisse holding on for dear life, the area around them was completely wet, a sign that Rossweisse had cum hard from the idea of potentially getting caught.

"Ooooh, looks like someone wanted to get caught by that student, were you hoping for them to see you indulging in such a naughty relationship."

"N-No, but I didn't want to get off of Issei."

"Naughty teacher, how can you be thinking about pleasure, you should be ashamed."

SMACK

Roygun's hands met Rossweisse ass, as she cried out, Issei looking at the display and snorting, he was really enjoying this.
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"Mmmmmm... ahhhhhhhh!"

"We are almost done... make sure to shoot enough for the two of us."

To end the session both girls laid on top, with Issei's final test being to creampie the two of them at the same time, Issei quickly set to work, fucking the pussy sandwich they were now making."

"Urrrrk... you two are so... fucking hot right now."

"Ahhhh... and you feel so incredible."

Both girls felt the pleasure coursing all across there bodies, there nipples dancing against each other. The two of them also kissing now that they were fully in the mood. Nothing else mattered for the next couple of minutes as Issei made the two feel like goddess'.

"Hee hee... you really look good getting fuck."

"You too... though I guess devil's always look so incredible."

"Well... some would say that we are meant to entice men."

Roygun went in for another kiss as the two felt that his cock throbbing deep inside of them, as the two of them felt there wombs descending, the idea of being teachers pregnant with there students, and it was such an enticing thing, so as they prepared to get creampied.

"Guh... take it all."

"Ahhhh... yes!"

Both girls screamed out as they felt it fill the two of them, shifting between the two of them blasting cum deep into there pussy, there faces contorting from the pleasure as they climaxed very hard against the weak points getting stuffed full. Issei hilting deep into the girls before he proceeded to slowly pull back.

"Hah... hah...hah... god."

"Gee hee hee hee."

"C-Can we give out S's..."

Issei looked at the clock... realizing classes were almost over, maybe he could slip in for the last classes and-

"Well, it looks like you enjoyed yourself."

Issei was brought out of his thoughts staring at was Asia, Xenovia and Irina, giving him a looking at him with straight eyes."

"U-Uuuh, hey girls ummm... I can..."

Silently Asia and Xenovia moved forward to drag him toward the doors as Irina prepared the lewd room.

"Its okay, you can make it up for us."

BOIN

"Now, now... I was thinking of getting in on him Nyah."

"N-Nee-san, I also want to be with him."

Somehow Koneko and Kuroka had snuck in and pushed Asia aside in order to grab his other arm, clearly wanting him too.

"Honestly what on earth are you all doing."

"Yes, how dare you try to drag my darling husband away to sex him up, that is what I want to be doing."

Rias and Akeno had also appeared, Rias hand on her forehead staring.

"I-Issei's management should fall to me."

"I... If I could slide in that would be great."

The room slowly became overcrowded as Ravel and Elmenhilde also appeared, crowding around him.

"H-Hey, what about classes."

"Oh, don't worry about that."

Rias said as they all began to undress around him, Issei desperately trying to prevent a nose bleed.

"You better make it up to all of us for fucking while we all were in class.