That took a fuckton to write, hope it's any good
This chapter features all the girls so far in the beginning and later Haruna and a surprise side character (Thanks to king carlos for a bit of the idea)
Don't ask who's next, I don't know
Don't ask when, I don't know
Well actually do, i don't mind, the more reviews the merrier, but you get my point
Enjoy

Chapter 6: an Embarassing Entourage

"Mmmnh... Marshmallows"
"Nya- Rito-san!"
"Yuuki Rito..."
"Wakey wakey, Onii-chan"
"Oi, you beast!"
I slowly opened my eyes
Skin
I was sucking on Momo and Yami's nipples
"Oh, good morning y'all"
"Yuuki Rito, how does my body taste? I was wondering..."
"It tasted great! So great..." that I went back on sucking her breast
"Suck mine too, you beast"
"Onii-chan, I'm starting to get jealous"
As for popular demand, I started snuggling, licking and kissing everyone, getting my body covered completely by girls who serviced me as hard as they could
Momo, of course, was throating me, while Mikan helped her by sucking my balls til her mouth was dried; at which point she suddenly pushed down Yami on my chest and started deep-kissing her. Nana, who was formerly sucking on my nipples, didn't have the room to do so anymore, so she got to my right and started nibbling on my earlobe, while making as many obscene sounds as possible

This went on for like 10 minutes before Mikan got off the bed to prepare breakfast, and Yami followed suit, so I was left with the twins
Not that I minded, of course
With no orders given the two went down on me, lezzing out on my dick while playing with my dick and balls with their hands

"RITOOOOOO! I'M DONE! I pulled out an all-nighter so you better use it"
It was an inch-sized ray gun
"You shoot a girl and her body will be more elastic, it'll act like an painkiller and a pleasure enhancer for a day! It also stops gag reflexes"
"Oh! Lala! That's great! Thanks! Come here for your reward..."
"Yes!"
Lala went on my... side, and started sleeping immediately while hugging me
Not that I can blame her
"Onee-san put all of her effort into it, go and conquer Haruna today, ok? Rito-san?"
"Yes"
I petted the sisters's heads
Yami and Mikan came back with food trays and started feeding me
Nana also started to eat while Momo (of course) started gobbling up her favourite dish, my sausage, seeing as she didn't have to share it anymore; it took me very little to come seeing as my dick had been in pleasure for 15 minutes

Long story short, after school I went on a date with Haruna-chan and after dinner I went to her house

"Excuse me"
"Don't worry, my sister isn't here"
"Good to hear"
"Want to come to my room while I get something to drink?"
"Sure"
-So, here I am... I'm gonna do it... Wish me luck, Lala, Momo, everyone...-
"Sorry, we ran out of te-eeeh?"
*thud* "Haruna-chan!"
I cornered her against the wall and kissed her; the glass of water dropped and shattered
Haruna-chan was taken aback, surprised and happy, I guess
She didn't offer any resistance, wrapping her tongue around mine and hugging me, being careful not to move her feet
"Haruna-chan!" After about a minute I broke the kiss off and carried her princess style to her bed; she was blushing heavily, clearly turned on: maybe all the sex I had made me release more testosterone
I got on top of her, quickly unbuttoning my shirt, to then go down to kiss her again
She started unbuttoning her shirt, exposing a cute pink bra
"Haruna-chan!" I quickly got rid of her bra while she still had her shirt on, and started sucking on her small-ish breasts, nibbling on the right one while fondling the other for about half a minute before switching breasts; she kept crying "Rito-kun"
After a while I went down to her skirt, flipped it up and started licking her mounds which were previously hidden by pink cloth: Haruna-chan grabbed my head and pushed it even closer so I started focusing on sucking her clit, even though she was a bit hairy
After a while she started coming, so she wrapped her legs around my head and started drowning me in her juices
Of course I left some as lube, holding back from drinking it all
After I got off her snatch i started taking off my pants, and her reaction to my underwear's bulge was priceless: shock, fear and uncertainty all in one face
"Scared?"
"A bit..."
I was fully erect but my boxers were extremely elastic
Then I took them off...

"... Is that even human?"
"No, apparently I have alien ancestry"
"I'm sorry but that's never going to fit"
"Wait a second"
I got to my pants and took out Lala's invention
"Stay still... there"
"I suddenly feel hotter... what was that?"
"A device Lala made to have sex without problems... now let's get started"
"Wait... I'm not ready"
"Yeah you are" and I got in just enough to break her hymen
She didn't feel much pain thanks to Lala's invention but I still waited
"You okay?"
"... Yeah..."
"Well then..."

Haruna-chan jolted upwards as I entered her; even with the painkillers I'm pretty sure I still hurt her, but I pretended not to notice: after all, this was just the beginning / I was on top, thrusting inside 5 inches while kissing her and playing with her breasts, to make her feel better / "I'm embarassed by my breasts" / "Why? They're perfectly fine" / "But they're not as big as Lala's" / "Do they have to be?" / She blushed heavily and tried to switch positions; of course I overpowered her but I went along with her and got down / "I didn't realize you put in only a part" / "Wanna try getting the other 10 inches in?" / "Wait, 10 inches? Are you cra-" She passed out

I mean, how can I blame her, I pounded upwards so hard I bulged out 5 inches, without Lala's invention she would have definitely died of organ rupture / I'm also pretty sure I got in her womb

I didn't want to do my love in her sleep so I tried waking her up, but to no avail, so I trained her body in her sleep for half an hour before coming inside her and going to sleep

-Prospective Shift-

Man, Yuu's such a fucking asshole, just because he found out I sucked my boss's dick once he dumped me *hic* literally, he left a drunk girl to go home by herself after a party at like 5AM, that's bey*hic*ond cruel...

*thud*

Ouch... I'm such a clutz, I just fell into Haruna-chan's room, I hope I didn't wake her u-wait who's that guy? Oh, he's that Rito guy she likes... So they hook up, huh...

Well, I'll just leave them and his gigantic cock and go to sleep

Wait what did i just see? I gotta take a closer look... WOAH is that thing real? Wh- ho- wh- My sister is amazing...

It feels real to the touch though... and to the smell too... only one way to find out...

-Prospective Shift-

... Light's in my eye... we forgot to close the window bars... Haruna-chan's still asleep and her sister is sucking my cock... WAIT WHAT?

"Oh... good morning"
I was speechless
"Don't we both have a partner?"
"Ah, Yuu? *hic* That asshole just dumped me"
"So that is a valid excuse to suck off your sister's boyfriend?"
"Now that I think about it yeah... you're right... this'll be our little secret"
"Mmh... Good morning, Rito-kun..."

"..."
"What are you so surprised ab...o...u...t... AKIHO WHAT THE ACTUAL FUCK ARE YOU DOING WITH RITO?"
"Oh, so you're letting him off the hook? Looks like she trusts you a lot"
"Ah, no... it's that we're in a polygamous relationship"
Haruna suddenly blushed like crazy
"AND WHAT IF WE ARE? THAT'S STILL NO EXCUSE TO GET IT ON WITH MY SISTER YOU IDIOT!"
"eeeeh? Won't you let your onee-chan have fun? Besides, are you able to handle him by yourself?"

" Here, I'll teach you how you pleasure a cock"

This was an unexpected development
I sneakily grabbed Lala's invention and shot Akiho with it
"What was that?"
"That what?"
"Whatever... So, here's how you suck a cock, although I don't know how well I can teach you with such a specimen"
Akiho went down to the base, licked the backside all along until she reached the head, at which point she started throating him, although she "only" got 6 inches that was impressive enough to make me help her in getting down a few more inches: it took 5 minutes of continuous face fucking to get it all inside, all while Haruna-chan was watching... She'd have to get used to watching me anyways so that didn't bother me, although we kissed a lot in the meantime

A bit after getting all in her guts I released Akiho's head; when she got off she left a ton of spit and was breathing heavily
"Damn... Haruna... chan... good luck... handling him..." and she started resting on my chest
"Want to try it or wanna continue where we left off yesterday?"
"... fuck me"

That was unexpected from her, but I guess I can't leave a girl begging unsatisfied now can I?
I pushed her down a bit but she hanged onto my neck, so I picked her up and went inside
From her face she probably felt some pain still but it was mostly overrun the pleasure, and her moans where a pleasure to my ears

After a couple of minutes Akiho got a hold of herself, so she hugged me from the back and started nibbling and licking on my ear, making sexy noises

Meanwhile Haruna-chan kept screaming louder and louder -we got a noise complaint later- as I got all inside her, plopping in and out of her womb faster and faster
Of course she came a lot times, although it was almost constant so I couldn't tell how many times she did
Akiho, maybe jealous, maybe to boast, gave me a hickey to the right
Haruna-chan wasn't all too happy about that, she wasn't yet used to the life in the harem afterall, but was too distraught by the pounding to do anything, she wasn't even holding onto me anymore, so she fell on the bed while I still held her up
"Rito-k...un... that feels... too go-AH"
"Cumming"
I came directly inside her womb, and her belly went from having a pole inside her to looking like an 8th month pregnant woman in a few seconds; of course, that was only a small bit of the come to... come
I didn't pull out so cum kept flowing down for a minute or more on the mattress
Needless to say Haruna-chan was in straight ecstasy, shivering with an ahegao
After I was done coming I pulled out and went down to kiss her
Of course Akiho got jealous, so she stuck a finger up my ass to grab my attention
When I turned around she pushed me down -how embarassing- and started riding me
Well, if you can call that riding, she had to get up and squat to ride me
That wasn't fast enough and it looked really goofy so I just grabbed her legs down and thrusted upwards
"Holy shit... it's all in"
She squirted instantly and peed herself -on me-
"Sorry..."
"Haruna-chan, can you clean me?"
"..." of course she looked at me defiantly
She then gave me a hickey to the left
"Who do you take me for?"
"My future wife? I was just kidding" -I was and wasn't-
She blushed heavily and looked away shyly
I grabbed her head and started making out with her, and of course she offered no resistance
Although kissing while thrusting upwards is kinda hard so we sometimes gagged on our tongues
"You really are a beast, Rito... I can guess why you're in a polygamous relationship... she'd probably die by herself"
"You bet"
"Rito... I want you to fuck me everyday"
"No problem, I can come for you as much as you want. Wanna come live at our place?"
"But how do i-" "Lala could probably make a room for you, and besides, we could have a double or triple bed"
"That's so sudden... I'll think about it"
"Haruna-chan... who'll take care of Maron then?"
"Sis, it's you dog"
"Eeeeh? Can't you keep it?"
"But that'd be ru-" "Sure we can" -Nana could probably handle him now that she's a pervert-
"Perfect! Take care!"
She basically kicked her out... well, thanks
Anyways, Akiho surpisingly got over the overwhelming pleasure fast, she could speak almost normally
"Say, how big was Yuu's dick?"
"Please don't bring up traumatic memories, let's just say I cheated on him weekly"
"Sis, that's terrible!"
"You don't get to speak if you start like this, you don't know what it's like to have your pussy not stretched in any way, my pinky was bigger"
Funny, he looks like such a ladies man
"Anyways, I'm about to cum"
"Shit shit shit, pull out" and she got up, having come a couple of times already
At which point Haruna-chan did the unthinkable and started sucking on me
She was kinda terrible at it though, so it took me way longer than intended to come
"Haruna, you're terrible, let onee-chan guide you" as Akiho put her hand on Haruna-chan's head and pushed it down
Haruna-chan was tapping her sis's hand but she didn't listen and kept pushing down
I came when I entered 5 inches, so it was kinda disappointing, but after a few seconds I removes Akiho's head from my wife's head to avoid hurting her too much, but she was already gagging out cum -Lala's machine's effect got a bit weaker

"HOLY FUCK IT'S 10 PM! Here's my number, call me when you want to, I'm going"
Akiho quickly got cum off her, dressed and ran out -she didn't even have breakfast if you don't wanna consider my milk as enough-
Haruna was pouting, It was probably weird for such a normal girl to have a threesome with her sister
"Wanna skip school and come to my place to continue?"
"Let's stay here..."
I smiled at her
And so the morning continued, with loving love-making, our bodies gripped, our lips sealed, our eyes closed

At 1:30 PM we left for the Yuuki household so we'd be home a bit earlier than the girls

"Oh Rito, you came back! And with Haruna too!"
"Yo, Lala!" I kissed her for a short bit "She'll be living here"
Haruna was a bit embarassed
"Ah! Rito! I'll make a new room for all of us, wait till tonight!" and she went upstairs, all gung-ho as usual
"Congratulations, Rito-san

I can't write for shit
I can't make up schedules right
I can write Haikus