AN: Oh my god another one from me in like the same month, what is this? Gonna be honest I'm not 100% familiar with Den-O so forgive me if this isn't my best but I tried and I like it so oh well. Idk which one I'm gonna do next but we'll see.

Allow me to Service You

Japan, 2018

Ryotaro Nogami walked through one of the cars of the Denliner with a smile on his face, it had been so long since he'd visited it and all the nostalgia had rushed back to him. He'd long grown up since his adventures as Den-O and didn't see his Imagin friends as much anymore due to him retiring for a normal life and them having all sorts of time travel shenanigans.

He still heard tales of their adventures but that was usually them coming to him, he hadn't visited the Denliner in a long time and after the events with Another Den-O and that Kamen Rider Zi-O, he had decided to come visit the train of time. He actually hadn't seen Hana in awhile, all he had been told was that she had grown up again, which was good news for her future. Though it was odd, the train seemed eerily quiet and none of the Taros or Naomi or Hana seemed to be around.

The door to the next car opened and out stepped the Owner, holding a plate of rice with his usual flag on the top of it. He smiled at Ryotaro, "Ah Ryotaro we weren't expecting you today." Ryotaro bowed slightly to him as a greeting, "I wanted to pop in as a surprise. Where is everyone though?" The Owner frowned, "Hana and the Taros are in the main car, doing something that you don't want to know. I suggest you do as I'm doing and leave for the time being, you can visit another day."

Ryotaro raised an eyebrow at him, "What could they be doing that's so bad?" The Owner shook his head, "I don't like to talk about it, all I'll say is even Naomi has left the main car due to all the commotion it causes." Ryotaro shrugged, "I appreciate the advice Owner but I think I'm willing to take the risk." The Owner nodded and frowned as his flag fell over from a rock of the train car, "Suit yourself but don't say I didn't warn you, hopefully your bad luck doesn't kick in."

He walked past Ryotaro and disappeared into the next car. Ryotaro wasn't entirely sure what the cryptic conversation meant but he was going to shrug it off so he could go meet his friends.

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As he walked towards the main cart he found another surprise waiting for him, Sieg and Denb. Both sat against a wall looking extremely out of breath and tired. Ryotaro looked at them confused, "Sieg? Deneb? What are you doing here?" Sieg gave him a weak bow, "Hello Ryotaro, we were just here helping the Princess with something, the rest of the family is still in the main cart with her but the two of us got too tired and left early."

Ryotaro nodded slowly, "Right, and what she's having you help her with made you exhausted?" Deneb nodded weakly, "That's right, do me a favor and don't tell Yuto I was here, he'd kill me." With that he got up and quickly ran out of the room, leaving Ryotaro alone with the swan inspired Imagin, "So Sieg care to tell me what you're all doing in there?"

Sieg put a hand on his chin for a moment before shaking his head, "The Princess has forbidden us from telling anyone." With that he disappeared in a cloud of feathers, leaving Ryotaro even more confused. What was so mysterious that the Owner was telling him to leave, Deneb was afraid Yuto would find out and Sieg claimed Hana didn't want anyone finding out about it.

It was certainly weird as he approached the main car, he began to hear strange sounds. They were definitely coming from the Taros and they seemed to be… fighting? There were a lot of grunts and groans as he walked closer to the door. He didn't seem to hear Hana though as he began to hear the Taros's talking, "Senpai when is it time to switch?" He heard Momotaros grunt in annoyance at Urataros's question, "Shut up Turtle-Jerk, it'll be time to switch when I say it is."

He heard a slight cry from Ryutaros, "But Momo you've had your turn for a while." He heard the sound of a punch as Ryutaros let out another cry followed by a chuckling Momotaros, "What are you gonna do about it, Brat? Cry?" At this he heard a loud snore before a groan, "Hm, I'm awake, is the peach hogging all the turns?"

Ryotaro frowned, so Kintaros was there too as the Taros's seemed to be fighting about something. This was usual for them but the question he mainly had was where was Hana. He didn't want to interrupt whatever it was they were doing but he needed to know what was going on. Sliding the door open slightly just to fit his head through, his eyes widened and his cheeks went red as he saw what they were doing. He'd certainly found Hana as there she was, on the ground, completely naked, Momotaros underneath her as she bounced up and down on him. They were having sex? Could Imagin even have sex?

Apparently they could, as not only was she riding on Momotaros's red cock, the other three stood around her, in her hands were Kintaros and Ryutaros's dicks, she effortlessly jerked them off as she continued to ride Momotaros. Not just that he now knew why she wasn't making noise, she had Urataros's cock in her mouth, sucking on it all the while taking care of the other 3 as well. They must've been going at it for awhile as her body was covered in sweat and cum, especially her breasts.

He felt shame rise up inside of him, here he was watching his grown up niece getting gang banged by 4 of his best friends and he couldn't seem to pry his eyes away. He couldn't exactly deny that Hana was attractive, her slim figure, elegant legs and not to mention her breasts that were quite large and were bouncing wildly as she bounced up and down. He felt so hypnotized by them that he barely noticed his forming erection, nor did he notice the hand that seemed to appear from behind him, slowly making its way down his pants.

As he continued to stare, and the group completely unaware of his presence he let out a slight groan as something began to jerk him off, he wasn't sure what it was but it was warm and smooth and he didn't want it to stop. It slowly began to unbutton his pants and soon they fell to the floor, allowing his cock to come free from it's underwear as the hand continued to jerk him off. He heard a giggle from behind him, "Now I know where the Taros get their large cocks from."

He glanced behind himself only barely able to make out a streak of black hair with a pink streak, "Naomi? The Owner said you left" Her grip tightened around his cock as she continued to stroke it, "I came back because I heard you were here, naughty naughty though spying on them." He could barely get any words out as she pulled him back into the car he was in, the door sliding closed as she turned him around to face her, "Naomi why is Hana doing… that?"

She smiled as she pressed her body against his, still stroking his cock as she began to talk, "Well you see the Imagin seem to have a time when they get like that and in order to make sure they don't cause trouble I originally offered myself to them, myself being where Hana is now. However as she grew up again she had to deal with teenage hormones and eventually she discovered what were doing and when she got old enough she volunteered to take my place since the Imagin were getting bored of me anyway."

He groaned as she continued to press her body against his, "So what happens now then?" Naomi smiled as she whispered into his ear, "Well we could have some fun ourselves, or I can tell Hana you walked in on them, and let me tell you she's a little shy so who knows what she might do." So his options were Naomi offering to have sex with him, or facing the wrath of Hana? That wasn't a very hard decision and who knows maybe his luck was turning around, besides not like he had a girlfriend he'd be cheating on.

He nodded weakly as she stroked his cock one last time, resulting in him cumming onto her hand causing her to smile. Licking the cum off her hand she smiled at him, "Well then, allow me to service you." He watched as she casually took off her clothes, revealing her slim body and perky breasts, they weren't the largest but he wasn't really into breasts so that was fine with him. She turned around to show off her ass to him and while her breasts weren't the greatest her ass surely was, it was so round and large and it almost reminded him of a bubble.

She teasingly spanked it and he watched it jiggle as he went red in the face from her teasing. She walked back over to him and pushed him into a seat behind him, she sat down on his lap and smiled, "So Ryotaro what do you want from me today?" He stammered slightly as he fought to make words come out of his mouth, "I, I uh, I'm not sure." She put a hand on his cheek and laughed softly, "Still as shy as ever, I'm guessing you don't have a naked woman in your lap often?" He shook his head, "Not really, it's been awhile since my last girlfriend."

She smiled and adjusted herself slightly so his cock was between her ass cheeks, "Well I always thought you were cute so you can pretend that I'm your girlfriend if you want." He nodded slightly as she slowly began to move herself up and down, his cock sliding up and down between her ass causing him to groan a bit, "Should we really be doing this? What if they catch us?"

She began to go faster as she pushed his head into her chest, encouraging him to play with her nipples, "They won't, those 4 usually don't notice anything when they get like this and Hana will eventually run out of energy and pass out on the floor.. Now stop worrying and enjoy yourself." Doing what he was told he took one of her nipples into his mouth as she continued to grind against him, his cock sliding up and down against her smooth skin and causing him to groan more as he sucked on her nipples.

She moaned slightly from his mouth on her nipples and held her hands against his head, not wanting him to stop as she continued to go faster, enjoying every second of it as the moans from the main car turned her on even more. As he felt himself ready to burst she bent down and whispered into his ear, "You know I have a confession to make, I watch them all the time and finger myself to their show. So I'm glad I finally have someone to do this with instead of being by myself."

He wasn't sure what it was but her saying that triggered something in him and he felt himself explode, an even larger amount of cum than before came out of him as it went into the air and landed on the floor. Ryotaro began to breath heavily as she got off of him, satisfied with her work, "That was good but I don't think you're quite ready for sex yet." He nodded weakly before feeling something in him, some kind of desire he hadn't had before, "Naomi, can you use your mouth? I want your warm mouth on my cock."

She flashed him a flirtatious smile and nodded, "Well I see someone is starting to get into, I'll do whatever you want." She got down on her knees and put a hand on his cock, before leaning in and slowly began to lick it, causing him to jump slightly. She looked up at him and he went bright red from the sight of her looking him in the eyes while licking his cock.

She giggled from him jumping again, "You're sensitive from having cum twice already, honestly I'm impressed you're still hard since you don't have much experience." He shrugged as she slowly began to put his cock into her mouth, causing him to nearly cum from feeling how wet and warm it was, "I guess my body has just built up a lot of stamina over the years."

She continued to put his cock into her mouth, getting as far as she could till she nearly felt it in the back of her throat and began to move her head up and down. She was impressed, normally she could fit a whole cock into her mouth but he was too big for it to fit, something the Taros hadn't even achieved. She began to slowly go faster as he felt himself in a state of bliss as he leaned his head back and groaned, her blowjob feeling so good that he didn't want it to stop as she continued on, using her tongue to lick his shaft and using one hand to massage his balls.

She had to admit his cock was pretty tasty as it went into her throat, it made her wet just thinking about it eventually being inside of her. Suddenly though she felt his cock being forced even more down her throat as his hands were no on the back of her head, he was pushing it down as his cock began to twitch and sure enough cum began to go deep down her throat. She stopped sucking and just stayed like that for a moment, taking in every drop before moving her mouth off, gasping for air as he looked at her apologetically, "I'm sorry, it just felt so good and I kind of lost myself in it that my hands just went on auto pilot."

She stood up and put a hand on his chin, "It's fine Ryotaro, I enjoyed it myself actually, but I think I'm ready for sex. After all I've yet to orgasm myself." He nodded slowly and looked at her confused, "How are we going to?" She pouted at him, "What you don't have a position you like?" He stammered a bit before scratching his cheek, "Uh I guess I really liked what we did before with you in my lap." She put a hand on her hip and nodded, "I like cowgirl too so you're in luck."

She walked over to him and sat on his lap again, lining herself up with his cock and sliding down on it slowly. She was so wet at this point that it went in pretty easily but Ryotaro winced a bit, "It's so tight, it feels like a vice grip." She put a hand on his chin and nodded, "It's because I'm happy to have you inside of me, now please keep enjoying yourself as I continue to serve you."

What she did next was rather unexpected, she pulled him into a kiss as she began to slowly move her hips, moving up and down on his cock as the kiss deepened. Ryotaro couldn't help but notice her mouth tasted like coffee as the two continued to kiss, their tongues dancing with each other as he found himself placing his hands on her hips, trying to support her as she kept on riding him. She started to go faster as she broke the kiss and giggled at how red his face was.

He stammered as she placed her arms around his next to hold on as she went faster and started to get more crazy. Her moans began to fill the room as his cock went deep into her, thrusting in and out as a wet noise could be heard, her being so wet that her juices could be heard going everywhere. It felt so good inside of her as he began stuttering again, "Naomi this feels so good!" She nodded in agreement as her bouncing became more erratic and crazy, "Just keep fucking me! Just like that!"

She moved her hips more as he soon moved his faster to match her speed, thrusting into her harder. He couldn't help but note how erotic her face was, her eyes filled with lust and her tongue out as she no longer had control and her mind was just filled with the need to have sex. She couldn't hold it in anymore, the walls of her vagina tightened around him as she practically screamed, "I"M CUMMING!" She convulsed slightly as beautiful orgasm bliss took over her, stopping her movements and seemingly enjoying the feeling of just having his cock inside of her.

He tried to look at her face but her disheveled strand of pink hair covered it, "Naomi are you ok?" She nodded slowly, 'That was amazing! I'm so glad I decided to serve you today. Though I hope you didn't mind that kiss, I got too into it." He shook his head as she got off of him, "No it's fine, you said I could pretend you were my girlfriend so I didn't mind." She smiled and got down on all fours on the floor, "Well you still haven't cum inside of me so how about you take the lead now."

He nodded slowly and went down to meet her, he wanted to protest a bit as he was nervous but the way she was shaking her perfect ass at him was too good to ignore. He lined himself up with her soaking wet vagina and thrust into her, earning a mix of a yelp and moan from her as he wasted no time, thrusting into her hard and fast causing her to shake back and forth wildly.

She moaned loudly as she felt his hands on her hips, controlling her as he thrust, "You finally got into it huh, I'm happy to see you getting more forceful but thankfully not as forceful as Momo." He laughed slightly as she began to shake her ass against his body and help his cock go in and out of her, "That sounds like Momotaros." She moaned again as she felt him move his hands from her hips to her ass, beginning to massage it gently, "Momotaros is good, but I imagine with a little more experience you'd be much better than all 4 of them."

He thrust into her more as he groaned from how tight she still was, "Would you be willing to help me get that experience?" She nodded as he felt him hit her g-spot and felt herself getting close to her climax. He groaned as her walls tightened further and his cock began to twitch as well, "Naomi I'm so close!" She nodded in agreement as she began to go faster against him, "Me too, let's climax together." With one last thrust from each of them they moaned loudly together before collapsing to the floor, both breathing heavily from their respective orgasm.

Naomi with her vagine full of his cum found herself crawling next to him, leaning into his chest and sighing contently, "That was pretty good Ryotaro, I'm glad you came to visit." He nodded in agreement, "Me too, thanks for serving me, and letting me pretend you're my girlfriend."

She winked at him and smiled, "Oh trust me I'd be happy to do that anytime." He smiled as well as she sat up and offered him coffee, truly an attendant's job was never done."

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50 Years Later

An elderly Ryotaro smiled proudly as he looked at the person sitting across from him, "And that's how your father was conceived."

His grandson Kotaro sat across from him with a look on his face that was a mix of disgust and embarrassment as he sat through his Grandfather's story, "Grandfather I just asked how you met Grandmother, not how you two banged for the first time." Ryotaro chuckled nervously and sighed, "Oh I guess I misheard you."

Kotaro frowned and rested his head against the table, "I am never asking you for another story again." Ryotaro chuckled at his Grandson's expense, at least he now knew the full story.