Fetishes which appear in this chapter: Bimboification, futa on futa, public sex, drug use, public masturbation, exhibitionism, felatio, fingering, age gap, vaginal, anal and weird psuedo porn science.

Enjoy!

Usagi, Rei and Minako waited for the futanari train cars to arrive at the platform. Their loose manners of dress caught the glances of perverted pedestrians, resulting in occasional gropings from passing strangers. The first time some old man fondled Rei's tits, she was mortified, but Usagi and Minako practically invited them. In their minds, they were dressed to encourage groping from everyone, be they senior citizens, police officers, milfs, children, or each other. It gave Rei no shortage of anxiety, but she stomached it until eventually, after her twelfth time being spanked, she started to enjoy it.

Usagi noticed her girlfriend grinning. "It feels nice being a slut, doesn't it babe?"

"Yeah, it really does." She blushed. Saying it out loud was embarrassing, but denying it would be lying to herself. Rei had done enough of that throughout her life. She was still confused as to whether she was actually a slut by nature, however, or if her friends had just conditioned her to enjoy abnormal stimuli like one would a dog. She frankly didn't care anymore, as, unlike her past self, Rei now got off on the idea of being co-opted into some kind of weird kink culture, regardless of whether it left her with no integrity or shame. It was, imply fun, a lot of fucking fun.

"Ahhh, our cute little Rei-chan has finally accepted her nature." Minako cooed. The blonde reached into her shirt and produced three white tablets. "Maybe now you're ready for the next step."

Rei blinked. "What are those?"

"Something that'll make you feel amazing."

"Yeah, but what are they?"

Minako sighed. "Rei, if someone offers you free drugs, you don't ask questions."

"There's so many things wrong with that statement—MMPH!" That was her thirteenth spanking. Whatever mischievous soul smacked her ass also used their other hand to smack Usagi's, who was straight up bulging through her jean shorts. "Remind me again why you two never look at the people who grope you?"

"It's simple Rei," Usagi began, "a large part of being a slut is not caring who ogles you, be it an ugly bastard or a sexy school girl. You are a creature born in horniness, therefore you should not discriminate during sex."

"Okay?" Rei said. "So why do we mostly bang hot women?"

"You can still have preferences, of course. After all," Usagi's hand crept into the back of Rei's hot pants. "Wouldn't you rather me prioritize you over other girls?"

"F-fair." Admittedly, no matter how nice it felt being spanked by strangers, her girlfriend's touch always got her far hornier.

Minako forced one of the pills into Rei's hand. "Just trust me when I tell you Rei. Sex is merely the beginning. Altering your mind with substances is the next step to communing with your body."

Rei read the wording etched into the pill's surface. "Futamin. So it's made for futanari?"

"Yep. It heightens pheromone production."

"Does it work on normal girls?"

Minako chuckled. "Oh Rei, you don't even know about your own body?"

The raven-haired girl frowned. "Then educate me, why dontcha."

"Gladly." Minako lifted her skirt, leaving everything from her hips down free for the public to see, then squeezed her balls. "These babies are different from the testes of normal men. For one they're a lot more jiggly and soft, and a lot less hairy."

"Well I figured that much out."

"Right. But there are special hormones pumping through our bodies that allow futanari to develop far bigger genitalia which can produce five times as much semen on average, and can sustain much, much longer erections. Tell her Usagi."

Usagi dug a finger into Rei's ass, eliciting a sweet moan from her girlfriend. "Our hormones don't just affect our dicks. They effectively turn our entire bodies into one big erogenous zone. Though," she added a second finger, "some places are still more sensitive than others."

Rei shuddered. "So is that why I sometimes get a tingly feeling whenever my tummy is touched?"

Minako smirked and patted Rei's stomach. "You like having your belly rubbed, Rei?"

She let out another sweet moan and nodded. "It doesn't feel overtly sexual, but it does feel nice."

"Ami is kinda similar. She loves having her ears teased. Some girls get off to more exotic things like feet or armpits. You never know nowadays what someone is into."

Usagi kissed her girlfriend on the cheek. "Next time we're alone babe, I'll give your sexy tummy some special attention."

"Oh yes, please~" Only an hour ago Rei was ashamed of jerking off in the adult section of a clothing store, yet now she was delighting in being felt up by her benefactors in broad daylight. She was beginning to forget what it meant to be embarrassed, as though any bashfulness she experienced was being converted to lust.

Minako cleared her throat. "Anyways, along with tons of unique hormones, futanari also release ten times the amount of pheromones than that of normal men and women, and we're twenty times more receptive to the influence of those pheromones. Futamin takes those hormones unique to us and triples their production, thereby increasing the amount of pheromones we release and inducing ridiculous amounts of sexual arousal not just in the individual, but in entire groups."

"Okay, but is it legal?" Rei asked.

Usagi chuckled. "Oh it's legal with a prescription, but we have ways of getting as much as we need."

"I'm scared to learn your methods." Rei shook her head. "But are you guys sure this is okay? I mean, what happens when you take too much?"

This time it was Minako who kissed her cheek. "Rei,'' she whispered into her ear, "futanari are incapable of overdosing."

Rei's eyes widened. "Are you serious?" Both blondes simply smiled. Rei then turned back to the pill in her hand. "T-that just can't be, right?"

"Believe me," Usagi said, adding a third finger to her asshole, "we've done enough to know."

Rei's heart rate accelerated, so she took a deep breath. "Okay." She hesitantly gulped it down. For a moment nothing happened, though she knew something would inevitably come. Something big. She grew anxious waiting for the storm to hit, unsure of what to do besides enjoy her girlfriend's fingers, however, when Minako downed the other two tablets by herself, Rei flipped. "Minako, are you crazy!?"

Minako blew Rei a kiss. "You know it, baby."

"You said it triples hormone production. Taking two has to be dangerous—Ahhh!"

Usagi removed her fingers. She retrieved from her pocket a tiny case of futamin, shook two into her palm and then held them up as though toasting. "In the name of the sex gods, right Mina?"

"In the name of the sex gods," she repeated.

"Usagi, wait!" The blonde ignored her girlfriend's concern and downed both tablets with an audible gulp. Rei began to sweat. "Isn't this bad? I mean, you can't overdose, but won't those still rewire your brain's chemistry, or permanently mess with your neurotransmitters, or some—Ohhh." Suddenly, without a moment's notice, Rei's forehead grew hot and her cheeks flushed. Her cock, which had hitherto been tucked into her shorts, swiveled its way upwards until the tip breathed the naked air of the station. She felt her pussy dampen as her nipples became visible through her top. She spoke with a slurred intonation. "WhhaAt iss tHhiss?"

"Feels good, doesn't it Rei?"

Rei couldn't discern which girl had said that. Her attention refused to align itself with whatever words had been uttered and instead focused on the myriad physiological sensations occurring all over her body. Everywhere, from her fingertips to the hairs on her neck, seemed to be rocked with microscopic explosions, some of which manifested in visible fasciculations, yet all of which felt orgasmic.

From the ways the movies had made it seem, being high meant perceiving ultraviolet light, parsing reality in slow motion, or seeing some grain of motion blur over everything, but Rei could see clearly. It was simply that her head refused to properly register information, resulting in the constant jumping from eyecatch to eyecatch in her short term need for visual stimulation. The most prominent sight was predictably Usagi's sexy, sexy, sexy chest. Those pert mounds that Rei loved oh so much, propped up so nicely by her corset and with their shape perfectly accentuated through its tightness. They were absolutely to die for.

Usagi smirked under Rei's lustful gaze. She and Minako were, of course, far more experienced than the shrine maiden when it came to extreme shifts in their hormone productions, and so had learned to better endure the raging effects futamin had on their bodies. For the two blondes, watching Rei experience being high for the first time was as adorable as it was a total turn on, because lord how the look of pure animalistic hunger in her eyes got them aching for her throbbing erection.

It was then that another stranger slapped Rei square on the ass, prompting the unsuspecting girl to lightly ejaculate onto the railway. She wondered then that if something as basic as being spanked could bring her to a near climax, what would sex under the influence feel like? The possibilities frankly seemed awe-inspiring.

Before she had enough time to fully fathom all of the potentials that futamin allowed for, the train and its cum stained windows rolled up to the platform. The doors parted. Immediately the stench of sex and cum wafted out onto the platform, raping Rei's nostrils until her pupils were dilated with delirium. The women leaving the train cars were all covered head to toe in a viscous white substance, hardly dressed, and all so incredibly fuckable.

What trailed behind their illustrious figures, however, is what motivated Rei into the train car, and that was the cacophony of moaning futanari mixed with the clapping of their wet skin against one another's bodies. It deafened all other noise, drawing the eyes of nearly everyone in the station with its obscene implications and carnal rhythm.

Unconsciously, Rei stepped into the car. She vaguely remembered hearing Usagi whisper into her ear the words, "See you on the other side," but she didn't have the time to care. All that mattered to her in the moment was living for the sake of dying; exorcising those most loud and dominant impulses banging inside her skull through indulgence and hedonism; in other words, fucking.

Immediately upon entering the train, Rei was snagged by an older lady with long brown hair and a long, delectable cock. Another girl her age was licking its shaft intensely, so Rei joined, mixing in her saliva with the cutie's next to her whilst fingering herself to high heaven.

Usagi's brain was boiling with the desire to fuck, yet she controlled herself just long enough to inspect the woman Rei was blowing. "Sakurada-sensei? Is that you?"

Surely enough, Juban Middle School's very own Haruna Sakurada sat completely in the nude while two teenagers sucked her cock. She smiled up at her blonde student and beckoned her closer. "Usagi, my dear. Come give Sensei a kiss."

"Yes ma'am~" Usagi bent down for a sloppy smooch. The girl next to Rei crawled up Sakurada's body and added her tongue to the huddle. Usagi quickly recognized her brown, wavy hair and frail figure as her childhood friend, Naru, and so she cupped Naru's chin and dug her tongue deep inside her mouth.

Sakurada took the opportunity to lick Naru's nipples, eliciting a moan that became lost in her best friend's mouth. The two girls' hands found one another's cocks and stroked them gently and lovingly.

It was then Sakurada grabbed either side of Naru's waist and shoved the girl onto her cock. Naru came instantly, spraying sperm all over her teacher's busty chest which Usagi graciously licked up.

Rei, meanwhile, upset about losing Sakurada's wonderful shaft to some skank's pussy, decided to take her revenge by jamming her cock into Naru's ass. "Oh god!" Naru gasped. "I'm gonna die—MMPH!" Usagi took her lips again, this time sharing Naru's leftover semen. The brunette, more than anybody else in the train, could have been said to have reached heaven.

Eventually both of Naru's holes were flooded with spunk just as she too decorated her teacher's chest a second time. By then it was Rei's turn for an adult ride, so Usagi and Naru sat down to continue their mutual handjobs whilst shooting the shit.

"Ahh!" Usagi cried. "This feels nice."

"It's been awhile since the two of us masturbated together like this, huh Usagi?"

"I know right." She nudged Naru's shoulder. "How do you like my girlfriend? Pretty freakin' hot, don't you think?" Next to them Rei was wailing like a cowgirl while bouncing atop Sakurada's lap. Her dick flopped every which way as it spurt cum everywhere, just as her breasts jiggled and her ass clapped against the skin of her benefactor's thighs.

Naru blushed at the vulgar display. "Her cock is incredible, but she seems a little… unhinged?"

"Believe it or not, this is her first time ever using futamin."

"Wait really?" Usagi nodded. Naru gazed back at the raven haired lass' fiery lovemaking and pursed her lips. "Damn, that is really hot."

"Right?"

Sakurada took hold of Usagi's lazy hand. "Usagi dear, you know students aren't supposed to use drugs."

Usagi grinned. "Want some, Sensei?"

"No thanks. Me and Naru popped some not too long ago."

Naru whispered into Usagi's ear. "Me and Sensei are actually on a date right now. I told her she was the love of my life and now we're on our way to The Parlor."

The blonde's eyes widened. "The Parlor? So you two are serious."

"Yeah. I'm so happy, Usagi. I'm gonna be with Sensei forever!"

"Oh Naru!" They began kissing feverishly again as Sakurada reached around to fluff her lover's hair.

"AhhHhHHhhH fuUHHhcK!" Rei was still moaning like a whore. She couldn't understand anything being said beside her. Words meant nothing. Sex was her only means of communication and everything else was mute. Her pussy was overflowing with cum just as Sakurada's face and chest were plastered with her seemingly endless loads. She had never been so quick to climax in her life, and god it felt good to discharge over and over and over again, without stopping and without fail.

At some point Sakurada decided to lift Rei off her cock to fuck Naru some more. That bitch! Rei was ready to marry that cock, and she just up and dumped her like that? To cope, Rei crawled over to a business woman with a nice, fat member and offered her ass as tribute. It was quickly filled with a ravenous girth, prompting yet another series of quick ejaculations and schizophrenic fantasies about whoever was pooning her that would last for a long, long while.

Usagi left Naru and Sakurada shortly after. It was Rei's first time aboard the futanari transit, and Usagi wanted her to experience it as was intended by sobering up whilst surrounded by strangers of an unusually sexy disposition. Plus, Usagi had barely been able to keep her own consciousness intact, what with all her hormones blaring throughout her body, and so used that fact as an excuse to jump head first into a pile of dicks and pussies where she'd spend the rest of their trip insane and erect, as was, of course, intended. She would eventually find and fuck Minako in an intense battle of tongues, but neither girl would be sober enough to recognize each other until much later when their holes were stuffed and their bodies were oiled in a number of lewd liquids. When their train stops, nobody knows or cares.