Sunday, 9 June 2019

Story: Cocknosis DxD


Humph! Issei was feeling a bit huffy right about now. You can't give a guy like him the power to change into a cute busty girl and outright ignore it! There were so many things he wanted to do! So many chances to join some cutie for funtimes. Not just sneak into a changing room or two, join an all-girls sleepover, join swimming class for girls, or maybe go out to karaoke with a bunch of hotties.

This might seem contradictory to his refusal to use his hypnodick to get girls into bed, but Issei's morality was... let's call it complicated and leave it at that.

“All right Issei, we got some work to do today.” At least his boss was one hell of a woman. Ah, he still couldn’t quite believe that some of the hottest girls in school had sucked him off. Rias Gremory, the school idol, Akeno who was right behind her in the beauty department. Even Koneko, the adorable school idol!

“Are you listening to me?” Rias asked, her voice taking on a serious no-nonsense tone. Immediately Issei raised one hand and saluted.

“Yes Rias! What do we do now?”

“Very well, for now we need you to learn how to control your Sacred Gear and your..” She lowered her gaze and licked her lips. “..other body part.”

He'd rather practise turning into a girl and sneaking into the shower for a quick peek if he was being perfectly honest.

"And for every time you succeed in a test we give, one of us will remove an item of clothing."

"At your discretion," Akeno added.

Ding! Now they had his attention!

"If you get any of us naked, we give you a titjob."

Ding, ding, ding! His preferences had shifted, just like that!

“You remember Tsubasa yes?” Rias said, drawing his attention towards the blue haired girl who was stepping out of the school right now. “She has volunteered as the target for your training. So please take this serious.”

Issei nodded, barely suppressing a perverted smile. He would take this super serious! Just the potential for a titjob from one of the school beauties was enough to motivate him like crazy.

"So, where do we start?" he asked. A little more eagerly than he probably should have.

"Let's start with a range test," Rias suggested. She, Akeno, Koneko and Kiba quickly shifted around behind him. Out of visual range of his hypnocock. A sensible enough precaution given the circumstances. "Whip 'em off, and then use your Gear to boost your size."

"Um, are you sure you're okay with this?" Issei called out across the hall.

"Oh, I am absolutely on board with this!" Tsubasa called back. "I will actively resist following any order you give me as much as I can. Um, try ordering me to raise my arm or something?"

Okay. "Raise your arm."

Tsubasa's arms remained resolutely by her side. Alright. That seemed like a fair enough test. Issei unbuckled his trousers, let them and his underwear hit the floor, and then his ludicrously huge penis seemed to awaken, like a dragon from its rest. It pointed out squarely at Tsubasa, who stared directly at it with an unwavering expression.

"Remember, she won't be affected yet," Rias whispered in his ear. Issei didn't notice that she had draped her arms around him, or that she was leaning her chin on his shoulder so she could look down at his mighty mind manipulating beast. "Boost it first."

And so the tests began. "Boost!" he called out, and his dick got bigger, his balls heavier and... wow, he really wanted to have sex right about now. Sex sounded super awesome.

“Okay, Issei after Tsubasa gets affected, please tell her to walk further away. I want to see how far you can stretch your.. big.. hard friend..” Her voice had taken on a sultry and hungry tone, which only made Issei’s balls ache even more for release.

“Tsubaki, raise your arm.” He called across the room and this time the blue-haired girl slowly raised her right arm until her hand was high in the air. Coincidentally, this resulted in her pushing out her breasts, and for some reason her other hand started to play with the buttons on her blouse. Issei's shaft felt a surge of... something. Thankfully casual sex wasn't taboo in devil's society, so he could take this out on her later on. The other girls too! Man, becoming a devil was the best thing to ever happen to him! "Um... step back, please."

Tsubasa nodded, and began to walk backwards. It was a little strange. It was sort of like... have you ever seen a video of a pretty girl walking towards the camera with a sultry swagger to her step? Imagine that video was playing in reverse. That was Tsubasa right about then. No less hot, but a little surreal.

After around a dozen steps, Tsubasa blinked and paused, eyes fluttering a few times before she spoke up. “Ehh.. I think I am out of range again?” She lowered her hand, returned to her earlier position, but made absolutely no effort to redo the buttons of her blouse.

Aha! So there was a range difference! Looking over his shoulders, Issei noticed Kiba noting something down in a journal. The boy noticed Issei's interest, and simply said "Approximately one hundred and ten meters."

"Eh? That far away?" Weird. The room didn't seem that big! Though now that he mentioned it... Tsubasa was pretty far away. That was weird.

"It's a space warping effect," Akeno said. "It will only last so long as we're maintaining it, so please continue to test."

“Also, which piece of clothing should we take off first?” Rias chirped up, not sounding the slightest bit embarrassed at the prospect of stripping.

As if that was in any question. "Take off your shirts," Issei said. A moment later, and all three girls behind him had whipped their shirts off over their heads, revealing a variety of sexy bras covering their chests. Oooh, it was like being lost in a candy store! So many variations, so many sizes, so many styles of underwear! His penis grew a little bit harder.

"Nnngh!" Tsubasa grunted, clutching at her thighs, seemingly unaware that she'd undone about half the buttons on her own top and now her boobs were threatening to spill out of them. "Ahhhh! Ahhh! Ahhhh! C-Cock! G-Gimme cock! Oh, what am I saying, I'm not usually like this... Nnngh!"

"Do another boost," Rias instructed. "She seems to be on the verge of falling under the influence."

Right. Wow, this power was really potent, wasn't it? Able to reduce a powerful devil like Tsubasa into such naked uncontrolled lust even at that distance. Issei sincerely hoped he never had to use it in combat, but then again this was likely a learning experience for the Devils as much as it was for him.

“Boost!” He intoned and his mighty cock grew further, he could almost feel the blood pulsing throughout it.

"Guuuuuuh!" Tsubasa moaned. Drool began to pool out of the side of her mouth, which she tried to wipe away. "It feels like it's fucking my brain, even from all the way over here!"

"Step back with your hand up until you don't feel it anymore."

Up goes the hand, and this time she took way more than two dozen steps back before lowering it again. At this point he was barely able to see her anymore. In fact, while he could tell she was saying something he couldn't actually make it out.

Then his phone began to ring. Huh? Issei answered it, though it was an unfamiliar number.

"I think I'm out of range of your perfect sexy desirable and commanding cock now," Tsubasa said. "On second thought... Hold on, let me go another step or two back. Whew, that thing is powerful! No wonder even Rias Gremory had to ask for help!"

"A hundred and fifty meters," Kiba said. Well that was quite a bit of an increase, how could it affect her if his cock couldn’t even be seen anymore. "Issei, are you familiar with exponential growth?"

"Huh?" Issei grunted. "Uh... Yeah, I think that came up in maths the other day."

"Well, let me put it this way," Kiba continued. "Once, there was a peddler who made a fancy suit for a King. In payment, he made a simple request. He pulled out a chessboard, and said this: Place one silver coin on the first square. Then each day, double the number of coins I was given the day before. Do this for all 64 squares over as many days, and that shall be my payment. The King agreed, as this seemed to be a tiny amount... but it very quickly ballooned into values so vast that before he was through with the first row, he could have bankrupted the entire kingdom. This is the power of exponential growth. I believe that your boosted gear may have the same effect."

Issei stared at him blankly.

"What that means is, the rate of growth between distances each time you boost is likely to be very, very high. It's rather simple calculus. If your gear is doubling the power of your hypnotic penis each time you use it, then each time the difference will be... Let's call x the number of times you've boosted, the rate of change would be about 2 to the power of x times the natural log of 2."

Issei continued to stare blankly at him. Then felt himself start to topple forward as he suddenly felt extremely tired. Mid-fall, his cock turned back to normal, but he never quite hit the ground. Three pairs of surprisingly strong feminine arms grabbed him around the chest to keep him up.

"There's also the problem of your body not being able to take the strain of multiple boosts," Rias said. "We can improve that with a little work. In the meantime, we do need to work out what else you can do with that."

"You know, except for satisfying a slutty devil's pussy and breaking a girl's brain," Akeno playfully laughed.

There was a kind of sense to that. Yeah, he had a vague feeling that he should be able to do more with this cock other than messing with a girl's head. He turned around, now that he was no longer boosted he should no longer be affecting the girls. Though he was still rock hard.

Three very attractive girls turned their attention towards his still towering cock and licked their lips in unashamed hunger.

Rias leaned down, causing her bra to slip across her chest, revealing a good amount of her rather splendid breasts. Nice. Very nice! She picked up a bag and handed it to Issei. Of course. He'd put the book in that bag earlier on. Rias couldn't see or pick up the book, but she could interact with the bag it was in.

“Please ask the book what else you can do.” She paused for a moment, grabbing Issei’s phone and barely resisting instantly rubbing his cock. “Hello Tsubasa, you can come back now.” Then she turned to Issei. "Hrm... I think it might be a good idea to let her suck your dick while you read. You do seem to be quite pent up, and I'm sure she'd be more than happy to."

It appeared that Tsubasa had heard her over the phone, because the sound of very fast steps echoed throughout the hall. And as soon as the sound reached him, Issei felt hands grabbing him from behind and a feminine voice shouting. “I will do it!”

Good thing she was a devil. Otherwise this kind of thing would have completely melted her free will! Anyway. Issei flipped through the book for the first time since picking it up and getting this thrice damned - Oh! It seemed that Koneko was in the mood as well. Though she was more after his balls, while Tsubasa was focusing on the shaft. Well, that was fine by him. It felt fucking amazing, and they were doing it of their own volition... In much the same way that Rias and Akeno was rubbing their now bare breasts up against his back. A-Anyway, he had to check this book. What else could he do with cocknosis?

The answer was: A lot. Most of the book was about different induction methods, and the different effects they could have on the mind.

Huh, there was an entire chapter on blowjob inductions and how to make people come back for more. Or how to input something while they were busy.. Ohh.. sucking your dick.. Like was happening to Issei right now.

Ah, but then he got onto the chapter about 'transformations'. It turned out you could cause any number of physical changes to a target depending on how they were 'inducted'. You could make breasts bigger (yay) you could make them smaller (boo), you could make a girl's thighs nice and thick or shrink off that body fat depending on your preference. Hair colour, eye colour, height, colour of skin, gender... it was all right here, with each one listing the 'preferred induction method' for different kinds of effect. You want to fine tune boob size? Get them with the 'accidental peek' induction where the girl 'accidentally' sees the cock for a fleeting moment. You want to go crazy with it? Titjob induction.

And then there came the “weirder” effects, like making that girl’s ass magnetically attracted to your cock? There was something odd that could let you literally fuck someone from a distance, like bending space to stick your cock into that girl over there. Or you could fuck some girl yesterday by twisting around time. Or you could even pull in her parallel double and have a threesome - or at least make her and yourself believe these things had happened through the power of cocknosis.

That was all with an unboosted cock, too. Which made Issei very, very worried about what he could do with his boosted cock. Distance had improved. The effect it seemed to have on her heightened as well. That was only after two boosts, too... What could he do - in theory - with a third boost? Or a fourth? Or a tenth?! Kiba's warning about exponentials came to the forefront of his mind. Exponential functions grow <i>fast</i>.

Maybe he shouldn't explore this. Maybe it would be best if he didn't use his Boost ability. The things he could do, the things he could get away with... it was too much for one person to bear! He should stop. He should not go any further with these tests. He'd be happy to join in with Devil Society, and do all he could to help them out but in his view the best way to do that would be to keep his hypnocock under control.

"Now issei, I do hope you have some good tests in mind," Rias whispered in his ear. "Do remember, when we're done we will be having a wet t-shirt contest."

Then again there are some things a man must do, some crosses he must bear upon his back, if he is to do the right thing.


  1. Issei's tests continue, and start getting even more obviously pervy.
  2. Skip to the wet t-shirt contest.
  3. Back to Asia and Aika.
  4. Sona is investigating Issei on her own initiative, and somehow finds out about cocknosis and titnosis.
  5. Something else

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