They created a monster.

She then undid Tanukichi’s belt and pulled down his pants, revealing his cock to the world. At first, it just seemed to be no bigger than it was at full arousal, but as the two girls stared they saw it get bigger… and bigger… and bigger, until the tip was touching Ayame’s forehead right above the rim of her black glasses.

“Gah… Tanukichi… you’re… you’ve become… a monster!” Ayame said as stepped back and got a good, long look at the Tanukichi’s new and improved genitals. The shaft of his dick was almost twice as thick as it was before, and now stood at just under ten inches in length. If Hyouka wasn’t around, there was no doubt in Ayame’s mind that she would have called it a womb-puncher, a pussy-breaker, a throat-filler, the kind of salami more commonly found behind a deli counter than in a boy’s pants. “Wow… this stuff really worked!”

“Yes, I do suppose that it has - though I’ll have to run a test to be sure.” Hyouka put on some rubber gloves and grabbed a glass test tube. “Last time I collected a sample from Tanukichi, I looked at it under a microscope and noticed that there was a certain amount of wiggling sperm inside. If this treatment really worked, then I should be able to observe an increase in the amount of sperm in a new sample.”

“Oh, is that all?” Ayame smiled and sat down onto a nearby chair. “Well then, why don’t we let Tanukichi use that ‘masturbation’ stuff you told me about and get you a new sample.”

“It seems as though Mr. Okuma is already two steps ahead of you, Ms. Kajou,” Hyouka said as she pointed back to Tanukichi, who was now furiously rubbing his dick up and down.

“Heh, figures,” she said under her breath.

“So… hot… have to… cool down!” Tanukichi grunted, not caring in the slightest that two cute girls were watching him do this. “Must… have… more!”

“M-more?” Ayame stared down nervously at Tanukichi’s over-engorged cock as he stepped closer to her. “H-hold on there, big guy! Now, I know you’re a little bit pent-up right now, but let’s not do anything hasty! You don’t know how to use a ripe banana like that one yet.”

“Indeed; as much as I would enjoy to have data on how this serum has directly affected your mating abilities, we can’t let your sperm be contaminated by her flower's fluids,” Hyouka interjected.

“But… just my hand alone… even with lotion, I don’t think my hand alone is going to be enough…” Tanukichi’s breath grew hot as his eyes drifted towards Ayame’s chest. “Hey… wait a second… I think I know of a way I can get through this.”

“You… you do?” This time, Ayame was the one who was starting to sweat.

“Yeah… it's an ancient stress-relieving technique passed down for generations called… paizuri.” Tanukichi reached for Ayame’s shirt and tore it open, sending buttons flying in all directions as he revealed her white bra to the classroom. Ayame blushed but didn’t resist as Tanukichi sat down in a chair and brought Ayame down with him, placing her onto her knees and his dick between her soft breasts.

“Pai… zuri? Doesn’t that mean ‘breast rub’?” Hyouka asked curiously.

“That’s right; it’s a very special technique that women can use to make men feel good.” Tanukichi’s dick twitched as he lathered his length in a thick layer of opaque lotion. “It’s a respected art style and, hundred of years ago, Japanese women who were good at it were revered above all others. “Though, women were only expected to do this with the men that they most admired, of course.”

“Well, that should not be a problem with Ayame then; everyone in the country admires you as their moral compass, after all,” Hyouka observed.

“Yeah… I suppose I should feel honored for getting the opportunity to do this, shouldn’t I?” Ayame asked, her **** look quickly shifting to that of pure confidence as she removed her bra. And, for a moment, it made Tanukichi wonder if perhaps he had just made another mistake. “I hope you don’t mind then if I just… dive in!”

Gripping the sides of her breasts, the black-haired woman squeezed her tits together and enclosed them around Tanukichi’s dick, smothering them in an avalanche of warm flesh and slick lotion. The sensation was so powerful that Tanukichi nearly flew up out of his seat, but Ayame and her breasts seemed determined to keep him right where he was.

“What’s the matter, Tanukichi? Isn’t this what you wanted?” Ayame asked, letting her voice grow teasing as she increased the pace of her thrusts. “Didn’t you want me to polish your spear? To wax your surfboard? To bring your cucumber to a perfect shine? Well? Wasn’t it?” Ayame lifted both her breasts and let them go, letting them both fall onto Tanukichi’s lap at the same time.

“Hmm, perhaps he isn’t speaking because he does not wish to break your concentration,” Hyouka suggested as she used her free hand to take pictures with her wrist monitor.

“Yeah, I guess so - this is a very delicate operation, after all!” Ayame couldn’t help but laugh a little as she kept going, each thrust of her breasts sending small splashes of white in every direction. However, her strong momentum came to a stop when she misjudged the angle of her thrust and the tip of Tanukichi’s long dick collided with her right cheek. “Ah!” Ayame groaned as she rubbed her sore cheek and readjusted her glasses.

“Oooh… I see why women gained so much respect for doing this now; clearly, this massage is much more dangerous than it first appears,” said Hyouka.

“It can be tough, yeah… but there is a way to get around that…” Tanukichi, wanting a little ****, gripped Ayame’s head by the hair and moved it forward, placing the tip of his cock right between her soft lips. Ayame, getting the signal, began running her tongue over the head as she began to squeeze her breasts around his shaft again.

“Interesting… is this some kind of advanced technique?” Hyouka asked, leaning over Ayame’s head.

“Th-that’s one way to put it, that’s for sure,” Tanukichi replied, shivering as he sat back and enjoyed the feeling of his cock being worshiped. He could have sworn that whatever Hyouka had injected him with had somehow doubled his sensitivity, because the feeling of Ayame’s pillowy breasts made him so ecstatic that he could barely even move. “Though, if she really wanted to be a pro… she’d take it even further.”

“Further?” Hyouka leaned forward again and observed the way Ayame’s drool dripped down Tanukichi’s shaft and mixed with the lotion as the first two inches entered her mouth. “I’m afraid that if she goes any deeper, she’ll block her windpipe and will be unable to breathe - and I do not recommend starving her brain of oxygen for too long.”

“Don’t worry… she doesn’t have to keep it in there for long,” Tanukichi replied, placing his hand on Ayame’s hair again. “She just has to… get it in there!”

Gripping the side of the girl’s head, Tanukichi began thrusting her face up and down, allowing the tip of his bulging dick to enter her unbelievably tight throat for a few seconds before pulling back out and then repeating the process. Tanukichi could hear Ayame gag a little but, again, didn’t do anything to try and stop him as he began stretching her gullet.

“Ah, I see - by moving her head like this, you give her time to breathe,” Hyouka observed. “You really are a natural instructor of this, Tanukichi. Perhaps you could teach these techniques to people as part of a kind of class?”

“Ga-aaaah!” Tanukichi threw his head back as his mind was suddenly invaded by the image of dozens of naked women in front of him, all of them rubbing their shining, beautiful breasts against perfect replicas of his penis. “M-maybe one day, but right now… right now I think I’ll… I’ll… aaah!”

Unable to hold himself back anymore, Tanukichi bucked his hips up into Ayame’s breasts and fired a shot of semen directly into the girl’s mouth - and despite only being a single shot, it gave Ayame more than enough cum to fill her entire mouth and cause her cheeks to bulge. Sensing that she was already at her limit, Ayame pulled her lips off Tanukichi’s dick and allowed two more shots to be fired out into the air, coating her face and upper breasts in a thick white layer of semen in the process.

“I’ll take some of that, thank you.” Hyouka skillfully dipped her test tube downward and filled it up to the brim with white goo while Tanukichi just kept moaning and painting Ayame white. “Thank you so much for this sample, Mr. Okuma; I am sure this will provide very valuable data.”

“Y-yeah… you’re… welcome…” Tanukichi replied, completely out of breath after unloading what felt like two gallons worth of spunk onto the ero-ist leader, nearly coating her black hair entirely by the time he stopped. “Happy… to help.”

“Excellent; I'll let you know what the results are when they’re in, as well as what other experiments you’ll be able to help me with. I’ll also be sure to let everyone know all about the art of ‘paizuri’.” Hyouka gathered up all her things and moved to exit the classroom. “Have a good day, Mr. Okuma, Ms. Kajou.”

“Grr… Dammit, Tanukichi! What the hell was that!?” Ayame swore when she knew the coast was clear, doing her best to try and wipe up the copious amounts of baby batter on her body. “I can’t believe that you did that…”

“S-sorry, Kajou… I, uh, wasn’t really in control of myself.” Tanukuichi apologized, moving to help clean her up. “I didn’t hurt you at all, did I?”

“Huh? No, of course not - I’ve practiced on more than a few hotdogs preparing to be Blue Snow to have any sort of gag reflex left. Though, you honestly could improve your diet a little - this morning dew of yours is subpar at best.” Ayame took a moment to lick some of Tanukichi’s semen off her arm. “What I’m upset about is that you didn’t take things far enough! ”

“W-what!?” Tanukichi exclaimed. “I just made tit-fucking in public normal, and you think I was wimping out? How could I have possibly gone any further?”

“Well, you could have said that I had to walk around with your jizz on me all day like it was a badge of honor, or that other girls had to clean me up with their tongues, or at least you could have come up with a better name for tit-fucking than the tired old ‘paizuri’!” Ayame complained. “You could have gone with, I don’t know… log-rolling, or mochi-smashing!”

“Augh… let’s just get back to class already, okay?” Tanukichi groaned. “I think I’ve had enough of you for one morning…”

“Suit yourself; but remember, you’re going to be a lot more horny now, so don’t be shy when playing with those sluts in class, understand?” Ayame replied, now almost fully dressed again and with her ruined dress shirt now hidden underneath her uniform’s coat. “Otherwise, those new bigger balls of yours might just explode~”

“W-wait, you’re not serious about that, are you?” Tanukichi said as he opened the classroom door to leave, only to find someone in a white military police uniform standing in his way. “M-mom!? What are you doing here?”

“Oh, no reason; I just thought I heard voices from this room and thought someone might be skipping class,” Ranko replied. “But I assume that you have a legitimate reason to be here, do you not?”

“O-of course!” Tanukichi replied hastily. “I was just helping someone with a, uh, science project! You can ask my biology teacher and everything!”

“Hmm… so you are the famous Mrs. Okuma.” Ayame stepped forward and gave a deep, respectful bow. “It is an honor to get the chance to meet you, ma’am. Thank you for gracing our school with your presence.”

“You must be Ms. Kajou… I’ve seen your face during my son’s sex presentation.” Ranko stepped in front of Ayame and put a hand on her shoulder. “Please, stand up tall. There is no reason for you to bow - if anything, I should be kneeling to you. It was only because of your actions that you turned my son’s curse into a blessing. Thanks to you, Japan is now more moral than it has ever been, people are having children again, and I even got a new husband out of it all.”

“New… husband?” Ayame’s eyes widened. “Wait, do you mean you…?”

“That’s enough idle chit-chat, though!” Ranko interrupted. “If you two are done with your science projects, you should return to your classes, on the double!”

“Yes ma’am!” Ayame and Tanukichi both shouted as they saluted together and then took off running down the hallway. Eventually, though, they both slowed down, and a blanket of pure dread descended upon Tanukichi as he felt Ayame’s smug gaze drill into the side of his head.

“Don’t. Say it,” the brown-haired man ordered.

“Say what?~” Ayame teased, pretending to be oblivious.

“You know what you were going to say, so just forget it!” Tanukichi grumbled.

“I assure you, I have no idea what you’re talking about.” Ayame shrugged playfully.

“Yes you do; there’s no way a dirty mind like yours wouldn't have thought of it,” said Tanukichi.

“Huh? And what exactly would I be thinking about right now?” Ayame asked. “Oh, I know! You must be talking about how you just became… Japan’s biggest… number one… world famous… motherf-”