Rtenzo & Ero-Enzo – Fanart and Hentai

Nightmares on the Train


(Note: This story is part of an ongoing crossover series of stories)
Previous Story (Part X): [LINK]
Beginning (Part I): [LINK]
Next Story (Part XII): [LINK]


NNNNGH!!!!” Shirogane groaned as the pink haired woman in front of him continued moving her breasts up and down on his length while peppering the very tip of it with a plethora of kisses, leaving numerous red lipstick marks all over it. “Oaaargh… feels so… nice!!”

 

Eyes sparkling with wanton lust, Fujiwara licked the mushroom shaped head of his length, “Hehehe! I knew you would love this! Feels really good, doesn’t it?!” she asked without even slowing down the movement of her tits. “Don’t they feel so much better than the flat chest of your girlfriend?!”

 

The pillowy warmth that engulfed his entire length made it harder and harder for the blonde Student Council President to think straight. The world around him disappeared in a thick purple fog while Fujiwara’s breasts began growing with each of his heartbeats, Grrrrrh!!!” he moaned as the two big meatbags pinned him to the soft ground beneath, leaving him no way to escape.

 

“Yessss! That cock is mine~!” cooed the pinkette before wrapping her oh-so soft lips around his dick, “MMMMMMMPPH!!!! MHINNNE!! ALL MHINEEEEEEE!!!” she howled in erotic bliss, her words vibrating around his dick. “SHUCH A BEAUTIPHULL CAWK!!!! IT’SH WASHTED ON A PHIG LIKE KAGUYAAAAAAHHH!!!!!!

 

“Nnnnngh… Nooooo!!!!” Shirogane groaned in defiance. He desperately tried to ignore the weight of her tits that rested on his body and the tight, wet and hot feeling of her mouth as he attempted to get out from underneath her warm embrace. But to no avail!

 

She laughed around his length, “Ghegheghegheghe!!!! YOU’WE NHOT GHETTING AWAY!!! THISH CAWK ISH PHOR MEH ALONEH!!!!!” she declared loudly and proudly before continuing to bob her head back and forth, dragging her lips behind her and coating his entire cock with her saliva. “GUGH, MMMH MMMH MMMH MMMH MMMH!!! GUGH GUGH GUGH!!! AUUUMPH!!!! YEEEEEESSSSSSSSHHHH!!!!!!!

 

The ground beneath him began to crack as Fujiwara’s tits reached a size where they now were twice as big as her entire body. One of her bright pink nipples pressed against his panting mouth, almost as if begging to be sucked on. Though, even if he wanted to, that was impossible! Each nipple was easily as big as his entire head and hard enough to cut glass with!

 

MMMPH HMMM… GUGHE GUGHE GUGHE GUGHE!!!! AYE PHINK AYE’M IN LUV!!!!” Fujiwara moaned in raw need as she took his cock all the way to the base. Her throat visibly distended due to the sheer girth and size of it. Her mouth felt so incredibly tight and hot that Shirogane had a hard time holding back all the cum inside his balls that only begged to get out. “UUUUMPH!! GULGWEH, HMMMMPH, HUUULGH!!!! SHO GHUUUD!!!! THISH PHUGGING MONSHTER CAWK ISH MAKING MEH CUM SHO PHUCKING GHUUUUUUUDDDD!!!!!!

 

“Haaa… haaa… haaa…!!” he panted and breathed like crazy as the pleasure he felt turned into pain as the weight on his entire body doubled with each passing second. His balls convulsed in the wicked desire to release their load and shortly after, did just that! Fujiwara’s crystal blue eyes went wide as the salty, sticky white fluid shot straight into her mouth and down her throat. At the exact same time, the floor beneath Shirogane finally broke entirely and he fell into the darkness below him. “AAAAAAAAAHHH!!!!

 


 

AAAAAAAHHH!!!! I can’t wait to be on a cruise again!” Chika Fujiwara declared for what felt like the 100th time as she stretched her limbs in all directions. The pinkette grinned from ear to ear as she watched trees fly past the window of their cabin. “It’s been like, what, half a year or so since I last was on one!”

 

“Yes, Fujiwara-san! You’ve told us that before!” replied Kaguya Shinomiya in an eerily sweet and quiet voice. Her crimson eyes were closed which, combined with her too sweet smile, made Shirogane think that there was definitely something going on with his girlfriend.

 

For right now though, he was far too busy with his own personal problems to do anything about it. He closed his eyes and continued to listen to his fellow Student Council members who sat with him in a train that would bring them all the way to the port city where they would ultimately set sail with the Helicruiser. They could have chosen to travel with a Shinkansen, which would have brought them to their destination in a little more than three hours, but they ultimately went with a normal train because it still took a couple days until the ship would depart and because they wanted to take in a bit of the countryside on their way. By now, Shirogane had found out that the Helicruiser was built by the Shinomiya Group, and was more than certain that the entire trip was all just one big scheme from his girlfriend. He would have been more observant and could have found out what Shinomiya’s real plan behind this trip was, if it weren’t for the nightmares that haunted him ever since Fujiwara found him practicing kissing after school. The mere thought of it still caused shivers to run down his spine!

 

His attempts at forgetting about it by working even more than usual had all been for naught as images of a naked Fujiwara and Hayasaka continued haunting him wherever he looked! As such, getting the money for it all had been one hell of a pain in the ass since he didn’t want to rely on either of his richer friends in the Student Council to help him out with it. Not that they wouldn’t have helped him if he asked, but he didn’t want to cause them any unnecessary trouble when they’re already so busy with preparations for the cruise.

 

Undeterred by Shinomiya’s strange behavior, Fujiwara kept on smiling as she watched the landscape pass by, “I’m so looking forward to seeing ol’ Najimi again! It’s been ages since I last hung out with the dude!” she said, giddily swaying her legs underneath the table.

 

“Dude?” asked Ishigami. The dark haired youth sat right next to Shirogane and desperately tried to distract himself from the weight of a sleeping Miko Iino’s head on his shoulder. “I thought you said last time that this Najimi is a girl?”

 

Fujiwara tilted her head to the side, “Did I?” she then shrugged her shoulders and took a sip from the soda in front of her, “Oh well, Najimi is pretty hard to read but super fun to hang out with. He’s even coming with her entire class ‘cause of a school trip or something.

 

“He? Her? At least decide on one of the two, and don’t use both! It only makes things confusing!” Ishigami chided her in the same annoyed voice as always. He sighed and tried to get his shoulder out from underneath Miko’s head but only managed to make her drool in her sleep.

 

The pinkette pouted and kicked his leg, “No need to be so grumpy all of a sudden!” she then turned her attention towards Shirogane, a strange look in her crystal blue eyes, “And… what are you looking forward to on this trip? Anything… specific in mind?” she asked while leaning forward ever so slightly, so that her breasts rested firmly on the table between her and the blonde man.

 

“Errrrrr…” Shirogane trailed off as he tried his hardest to look anywhere else than his fellow Council member’s cleavage, ‘Damnit! Why’s she doing this? Ever since that night… something changed!’ he thought as sweat rolled down the side of his face. “W- Well… I’m definitely interested in seeing more of the world. Heheheh… I mean… how often will I get the chance to travel around like this, right?”

 

“Mhm!” Shinomiya nodded. Her face remained a sweet smiling mask that disturbed him whenever he looked at her. She clenched her hand into fist before laying her head to rest on it, “Your sister’s gonna be on this cruise as well, right?” she asked, changing the topic into something that Shirogane found much more easy to handle.

 

He nodded, “Yeah. She and her class are also part of the same school trip program as that Najimi-person. Our mother was… strangely considerate enough to lend her just enough money to pay for all the expenses.” the blonde explained as the train slowly came to a halt.

 

They all looked out of the window right in time to see the last glimpses of a scenic rural mountain town before the train stopped inside a station. A voice from overhead informed them that they would have their scheduled half hour break here before they would continue with the rest of their journey.

 

“Finally awake?” Ishigami asked the now stretching Iino. He rolled his sore shoulder since it’s been hours since he last could move it.

 

“Huh?” the brunette blinked a few times after fully waking up, trying to reorient herself after being asleep for almost the entire trip. Not that anyone could blame her; they’ve been awake since four in the morning to catch the train! Iino spotted the dark stain of her saliva on Ishigami’s plain white shirt. “Wait! Did I…?”

 

Ishigami applauded her, “Bravo! You’re a real quick one, aren’t you?!” he asked sarcastically, already standing up from his seat and now waiting for Iino to stand up as well so that he could get out, probably to either go to the toilet or to simply take a quick stroll after nearly four hours of sitting still. “Could you let me out now or what?!”

 

Her face became as red as a tomato as she quickly jumped out from her seat, “J- Jerk!” she muttered, clenching her hands into fists as she stood in the passageway, “You could at least be grateful that at least one woman decides to get close to you for once!” said Iino before making her way through the many other passengers on board.

 

“Ugh. Just great!” Ishigami rubbed his head as he stepped into the passageway, “Well, I better see where she’s going to make sure she doesn’t accidentally get lost.” he declared, as he already began following after his brunette classmate. “Last thing we need before the cruise is one of us being stuck in this random village with no internet!”

 

The three upper class men watched as Ishigami’s black hair disappeared in the crowd. Kaguya turned out to be the first one to react to his actions by chuckling into the back of her hand, “One could almost think that he does care about her.” She stood up as well. “Anyways, if no one wants to say anything, then I’m just gonna take a quick stroll too.”

 

She waited for a while and Shirogane actually felt as if she addressed him, wanting him to come clean with his deeds a couple nights ago. After almost a minute of thinking about telling her about how he cheated on her, she sighed and marched down the passageway into the opposite direction of her fellow Council members. For a moment, Shirogane thought he spotted a patch of blonde hair, styled in the very same fashion as that of Herthaka but decided that it was probably his imagination since it was gone not even a second later.

 

Probably just another nightmare…’ he thought, remembering all the lucid daydreams he had in recent times. Sitting there for a solid five minutes, he thought about following and telling her the truth but didn’t find the courage to do so, ‘She would definitely leave me if I told her… But lying to her will only mean that she will find out later down the line and then… UGH!!!!! What’s wrong with me?! Just tell her what happened, you coward!’ he chided himself.

 

“Is everything alright, President?” the kind and warm voice of Fujiwara brought him back to reality. He turned around to see her resting her arms on top of her heavy breasts while a playful smile curled around her lips. “You seem a bit confused. Maybe I can help take a load off from your shoulders?”

 

The innocent way in which she offered her help was in stark contrast to how seductive and alluring she looked at the moment. Her blue blouse looked as if it could burst open any second now, due to how she squished her breasts against the table. He could even see the frills of her black bra, which made her offer seem even less selfless and more as if she asked because she wanted something from him instead.

 

“Errrm… Ehhh! Oh, it’s… It’s nothing!” he stuttered, with a bright red blush on his face as he forced himself to look everywhere else, just not inside the deep folds of her cleavage. “I just need to… go to the toilet!”

 

Even in his own ears, he sounded not nearly as confident as he wanted and he could clearly see the disappointment in the pinkette’s eyes as he stood up and rushed down the passageway, following the signs that led him to the toilets. Once inside, he leaned against the door and forced his rapidly beating heart to calm down. He couldn’t think of a single time where he had been more happy being inside a toilet as his dick continued throbbing and growing inside his pants after getting so many clear views at Fujiwara’s cleavage!

 

AAAH!!! What’s wrong with those girls today!?” he asked himself, rubbing his head with one hand while unbuckling his pants with the other. His dick slipped out and nearly toppled him over due to the sheer weight of it. Ever since his night with Fujiwara and Hayasaka, he began having more and more frequent erections that made life a lot harder than he ever thought possible. It didn’t help that both Shinomiya and Fujiwara acted so weird the entire day!

 

Shinomiya always seemed as if she knew more than she let on but didn’t say anything, which was something that caused him to feel even more unsure around her than normally. His cock began throbbing even wilder than before as he remembered the many smaller or bigger things his girlfriend did across the day. Like bending over directly in front of him to pick something off the ground, allowing him to catch a brief yet very good look at her panties. Or how she made such a big scene out of putting her luggage into the rack above their seats.

 

It was almost as if she wanted to draw his attention towards her ass. Though, back then, he was far too busy ignoring the recurring haunting images of a naked Fujiwara that followed him wherever he looked. Now that he was all alone however, all those memories came back and caused his cock to throb like crazy!

 

Putting his hands around the thick girth of his length, Shirogane walked over towards the toilet, “Curse it! Why does this all have to be so complicated!? I should have never agreed to Fujiwara’s kiss-training!” he muttered to himself. He looked out of the window in an attempt to see something that might distract him and to cause his cock to go back to normal.

 

Outside of the train he spotted Ishigami making his way through the crowd, looking for Iino who currently sat all alone near the end of the platform. Even with her hands in front of her face, Shirogane could still clearly see the burning red blush on her face and the steam coming out of her ears. A little bit off from her, he spotted a tall, dark haired man talking down to someone. At first he assumed that it was an elementary school kid, given her short height when compared to the other man. She seemed even smaller than Iino. Upon closer inspection however, he saw her absurdly large tits that stood off from her chest like two mountains! Even from this distance he would go so far and claim that they were even bigger than Fujiwara’s!

 

Just looking at them bounce up and down as the short girl jumped in front of the man caused Shirogane’s dick to grow even thicker, “Fuck! Fuck, fuck, fuck, FUCK!!!” he kicked the wall next to the toilet in frustration. “Since when has this world turned into some kind of hentai anime!?”

 

“Would you mind keeping it down there, President? You’re making a scene!” an all-too well known voice said, causing the blonde to startle as shivers ran down his spine.

 

AAAHH!!!” he spun around to face Fujiwara who locked the door behind her, something that he forgot earlier and which made it easy for her to follow him, “Fu- Wh… What are you doing here?” he asked, his face just as red as Miko’s while he desperately tried to hide his cock from her hungry eyes.

 

“What does it look like I’m doing?” the pinkette asked back, walking forward with an erotic swing in her hips, “You know, I actually can’t stop thinking about our night last time.” She said, cutting straight to the point while a light pink hue spread across her face, showing that she’s just a little bit embarrassed about the whole situation as well.

 

“Errr… That’s nice and all…!” Shirogane began, backing against the wall to get as much space between himself and his fellow Council member as possible. Not that it helped much, as the room was just too small. “But that doesn’t explain what-!”

 

“I’ve been thinking!” She cut him short. By now, she was so close to him that he could feel her tits press against his beating chest, “You were good back then! You fucked me like a fucking bull, and I loved every second of it!” Fujiwara explained as if it was the most normal thing in the world, “My pussy still feels so stretched out and…” she trailed off, a drop of saliva running out of her open mouth as she commented about all the things he apparently did during that night.

 

Truth be told, he mostly couldn’t remember most of it but just by hearing her gush about all of it, his cock grew and grew until it was fully erect, “Grrrr… Fujiwara, could you please stop saying that?” he groaned through gritted teeth, unable to hide his cock much longer. “Why are you doing this?”

 

Fujiwara blinked a few times, almost as if she had forgotten that he was here with her, “Oh, yes! Right!” she nodded while unbuttoning her blouse, letting him see her intricately patterned bra in all its glory, “I was thinking that, while you were definitely good, there’s still much room for improvement! When you want to get together with Herthaka, you HAVE to be better than just ‘good’!” she explained, reveling in the look of utter arousal in the blonde man’s face as she dropped her blouse to the ground before moving to do the same thing with her bra. “And for that reason alone, and nothing else, no other ulterior motives, I am willing to have sex with you again!”

 

WHA????” Shirogane gasped, hiding his face behind his hands to shield himself from her naked tits. “What… What are you saying???”

 

He had a hard time believing that what she said was 100% true, but he had no doubts about her intentions! She absolutely wanted to have sex with him again!

 

After slipping out of her skirt as well, Fujiwara dropped to her knees and put both her hands on her tits, pressing them together in an overly erotic demonstration of their softness, “You know exactly what I’m saying, and what I want!” she said, as her eyes locked to the absurdly large cock directly in front of her. “Be honest with me, you want this as well! Feeling the tight and hot embrace of my pussy around that thick, meaty, gigantic, fuckstick!”

 


 

Just by her describing his cock like that, and what she wanted to do with it, images of the whole thing flooded his mind. He could basically already see her laying on the ground, her legs crossed behind his back to prevent him from pulling out.

 

YESSSSS!!!! THAT’S THE SPOT!!! MARK MY PUSSY AS YOURS!!!! MAKE ME YOUR WHOREEEEEEEEE!!!!!!!!” she would scream, her eyes crossed in erotic ecstasy as he slammed his dick inside her in a fast but even rhythm. “ADMIT IT!!! YOU NEVER HAD A PUSSY AS TIGHT AND PERFECT AS MINE!!!!!!

 

Her demand rang in his ears, making him doubt if it was really just an imagination or if it actually happened right now, “Huff… huff… huff…!” his breath steamed out of his mouth as he closed his eyes. “Ye-!”

 

AAAAAAHHH!!!! CUMMING!!! I’M CUMMING FROM YOUR DICK MESSING UP MY CUNT LIKE THAT!!!!!!” she howled, totally indifferent to who would hear her. Her juices squirted out around his dick and ran down her ass as she spasmed in orgasmic pleasure. “MESS ME UPPPPP!!! BREAK ME AND MAKE ME YOUR CUMDUMPSTER!!!!!!

 

Sweat coated both their bodies, creating a series of loud and wet SLAP! SLAP! SLAP! noises whenever he rammed his dick inside her tight pussy, “Urrrrgh…!” he groaned in a mix of pain and pleasure as her inner muscles clenched harder than any vice around his cock, keeping him locked inside her soaking twat.

 

With her tongue lolling out of the corner of her mouth, Fujiwara’s eyes met his, “AAAH!!!! YOU’RE A FUCKING BULL!!!! YOUR COCK IS WASTED ON ANYONE ELSE BUT MEEEEEEEEEEEEEEEEE!!!!!!!” her words turned into a long banshee-like scream as she climaxed again.

 

Heady smelling scents filled his imagination as her pussy squirted like a broken faucet, “RRRRRRRGH!!!!” he gritted his death, forcing himself to not cum even as his balls convulsed in raw need of relief. He could practically feel the cum boiling inside them, ‘What would Shinomiya say if she would see me like this? Shinomiya…

 


 

“Shinomiya!” he opened his eyes, banishing the imagination of what could be from his mind. Instead, he focused on what had to be. Noticing the startled look of confusion in the pinkette’s eyes, Shirogane raised his hands in a placatory gesture. “Sorry, Fujiwara. But I can’t do this!”

 

“What?” she asked, more shocked than insulted due to him declining her offer. “But… But I thought you were gonna…”

 

He shook his head, “No!” he declared, somehow managing to stuff his cock back inside his underwear and shorts. “I have to set some things straight!”

 

With that as the only explanation, he stepped out of the toilet, leaving her behind, and marched back to their seats, hoping that he would find his girlfriend there. And, sure enough, there she sat, her legs crossed and with an almost annoyed expression on her face as she read something on her phone. Shinomiya heard him coming and looked up, just as he came to a halt directly in front of her.

 

“Sh- Shinomiya, we need to talk!” he began, his legs trembling just by thinking about her potential reaction to the truth that he was about to drop on her. He then told her everything, about his kissing practice that somehow escalated into a wild orgy with Fujiwara and another girl that lasted the entire night. He didn’t specify who the other girl was, not wanting to drag Hayasaka more into this, and to not ruin her job as one of Shinomiya’s assistants.

 

By the end of it, he found himself kneeling in front of the dark haired woman, his head lowered as he found himself unable to look her in the face. Instead of getting insulted or verbally attacked for his behavior however, Shinomiya remained silent for what felt like an eternity. Then, after he almost thought that she would never talk with him again, she squatted down in front of him and put a hand underneath his chin, lifting his face so that his eyes met hers.

 

“Oh, darling~!” she cooed, her voice nothing more than a whisper that was meant for his eyes only, “I’m so incredibly happy that you decided to tell me all this! I can’t believe how much courage that must have took.” Much to his surprise, Shinomiya sounded genuinely sincere and honest, with not even the slightest hint of anger or resentment in her voice.

 

“But… But I…!”

 

“Sssh!” Shinomiya hushed him by putting one of her fingers to his lips, “It will take some time until I can completely trust you again, but I forgive you! It wasn’t your fault!” she said, standing up again and looking out of the window to watch the many people slowly step into the train again now that the thirty minute stop here came to an end. “I do, however, ask for your absolute obedience from here on out! You will love or lust after no one else but me!”

 

He couldn’t nod fast enough, “Mhm!” he agreed.

 

A wicked smile spread across Shinomiya’s face, “Fujiwara will most definitely try something like this again but this time… things WILL go differently!” she declared in a tone that sent shivers down Shirogane’s spine. “She will pay for ever messing with MY boyfriend! And this cruise will be the perfect opportunity to remind her of her place!”

 

Today’s battle result… Shinomiya wins.

 


(Story by: Mr. Akrononym)

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tanba
tanba
1 year ago

I can’t wait for the day you write the betting scene between Ishigami and Miko!

Xcelsior
Xcelsior
1 year ago

Not on the Mugen Train🤧

Mr. Akrononym
Member
Mr. Akrononym
1 year ago
Reply to  Xcelsior

Nope, some other train instead.

Emperor-k9
Member
1 year ago

I have a question for the author. You know how in the cum version of the last pic Fujiwara was in, she was lactating? Have you considered adding that as something she can do in the story too?

Mr. Akrononym
Member
Mr. Akrononym
1 year ago
Reply to  Emperor-k9

She was lactating? Huh, now that you mention it, it does seem that way. I always assumed that that was just cum. Anyways, it depends on the type of kinks that Rtenzo allows in these stories. If he thinks that it turns off most of the audience, then I can’t inlcude it.

Shadowdragon
Shadowdragon
1 year ago

Love how you portraited Kaguya in this chapter. I can imagine how Kaguya will turn Chika in her pet using Shirogane or Hayasaka. Interesting to see if we see Kei or Mito in action as well with the other character. Mito meeting Marin into the sexy cosplay world will be out of this world, but so far amazing this whole crossover story.

Mr. Akrononym
Member
Mr. Akrononym
1 year ago
Reply to  Shadowdragon

Yeah, Rtenzo has Kei as one of the girls he’s interested in drawing, so I had to include her on this trip someway. Including Miko might be tricky though, given that she doesn’t seem to appear in artworks. I hope you’ll stick around.

SpectralTime
SpectralTime
1 year ago

Yaaaay! The couple I’m super invested in won out!

Mr. Akrononym
Member
Mr. Akrononym
1 year ago
Reply to  SpectralTime

Hey, glad you like it!

Evildark
Evildark
1 year ago

Ojalá Fujiwara se convierta en la mascota de Shirogane y Kaguya

Mr. Akrononym
Member
Mr. Akrononym
1 year ago
Reply to  Evildark

Guess you’ll have to keep reading to find that out XD.

126jojo
126jojo
1 year ago

Fujiwara conocerá la BBC?

Mr. Akrononym
Member
Mr. Akrononym
1 year ago
Reply to  126jojo

Maybe. I haven’t thought that much ahead with her, given that she’s gonna do something else first. She does strike me as someone who enjoys BBC though.

Juggernut39538
Juggernut39538
1 year ago

Since Ishigami is gonna be part of the cruise too I always picture him as the awkward introvert that is also packing major heat plus a beast in the sheets can’t wait to see what happens with him

Mr. Akrononym
Member
Mr. Akrononym
1 year ago
Reply to  Juggernut39538

I always thought that Ishigami will have a very special relationship with two other characters. Dunno if it’s swxual though.

But yeah, glad you’re looking forward to see more of him. He’s one of my favorites.