My Little Sister Is the Best F*p Material

Volume 4 Chapter 7: Forced Paizuri Ejaculation

After dinner, I was even denied the offer to wash the dishes, so I lay on the bed with my phone, messaging Suzuhara about the upcoming offline meetup. Preparations were underway, and a schedule was being set for mid-summer.

Suzuhara’s friend was the main organizer, with Suzuhara and another girl as co-organizers. Everyone involved was someone I’d met online, and I hadn’t even greeted them in-game yet.

“What are you doing?”

Yamamoto-san returned to the bed after finishing the dishes. I sat up, and we sat side by side on the edge of the bed.

“The offline meetup is getting serious, so I’m coordinating my work schedule.”

“What do you do at these meetups?”

“Usually, we gather in a karaoke room, chat, play games, eat, and then disband.”

From what I’ve heard about SNS game meetups, sometimes people barely talk and just play games before leaving.

“Meeting people you only know online must feel new.”

“People who use the internet for games or anime sometimes have completely different online personas. Honestly, it’s a bit scary for me.”

“It’s all about perspective. You’re too focused on what could go wrong or if everyone will be weird.”

Yamamoto-san pushed my shoulder with her finger, leaning in to look at me. Her cute expression made me smile.

“Maybe set a goal? If you achieve it, even if other things don’t go well, you won’t feel like the day was wasted.”

A goal for the meetup. I’d hoped to find a girlfriend, but if I can’t distance myself from Miyu even with Yamamoto-san, it might be pointless. I’d gotten dragged into Suzuhara’s enthusiasm and couldn’t back out now.

Still, I had no reason to cling to finding a girlfriend. I enjoy gaming, and meeting people through hobbies could be a good start.

“Maybe making one friend?”

I immediately regretted saying it. It sounded lame, especially in front of Yamamoto-san, who has many friends.

“That’s a great idea! Since it’s people with the same hobby, it could lead to something good!”

Yamamoto-san took my hand and smiled. It was embarrassing but heartwarming. That’s just like her.

With Miyu, she’d probably say, “You’re so stupid for worrying about such things, Onii-chan,” and lecture me while giving me the right answer. Both of them are caring in their own way. Their kindness warms my heart.

“Since ‘friend’ is vague, let’s say success is exchanging contact info.”

“Suzuhara will arrange for everyone to exchange info.”

“Perfect. It’s a guaranteed successful meetup. Doesn’t that sound fun?”

What a way to spin it. If the goal is just exchanging info and chatting while gaming, it does sound relaxed.

“Thanks. I’m actually looking forward to it now.”

“No problem. It’s a great opportunity, so just go with the flow and enjoy it.”

Success or failure, it’s all experience. That’s what it means to change your perspective.

“Come to think of it, you said something similar when you handed out those flyers.”

“And look, you’re talking to me now.”

“I never thought I’d actually get to touch your breasts.”

“Nfufu. Want to touch them again?”

Yamamoto-san pulled at her T-shirt, revealing her puffy breasts. She hadn’t worn a bra since her shower.

“Can I?”

“Go ahead.”

She whispered permission near my ear, making my heart race more than during our earlier mischievousness.

I held my breath and grabbed her breasts through her shirt. They were so soft, just like before. I wondered how both Miyu and Yamamoto-san maintained their firmness.

“Can I put my hands inside?”

“Yeah… hehe. Sure, go ahead.”

Yamamoto-san suddenly laughed, tilting her head back to move her hair.

“Huh? Did I say something weird?”

“No, I just thought you’d go straight for the skin.”

I see. Touching through fabric has its own charm, but I figured if she allowed it, I’d go for the skin. In this situation, most people would allow direct touch.

“Actually, when we had that erotic activty earlier…”

Yamamoto-san spoke as she lifted her T-shirt, giving me access. I obediently slipped my hands inside and squeezed her breasts. They were warm and soothing.

“Every time you touch me, you ask for permission. Is that Miyu’s influence?”

Her words made me freeze.

“Maybe. Did it bother you?”

Miyu’s boundaries were so unclear that I’d gotten into the habit of asking permission. Her unpredictable “I don’t like that” and “It’s fine” had stuck with me.

“It’s just… you asked permission even to touch my nipples after I said it was okay to touch my breasts. That’s a first for me.”

Yamamoto-san laughed again.

“Oh… I see…”

That’s why she’d chuckled when I touched her nipples. Most people don’t differentiate between breasts and nipples like that.

“Miyu’s basically off-limits. Her boundaries are confusing.”

“Off-limits? Even her breasts?”

“Her neck, thighs, and chest are absolute no-go zones.”

“They’re sensitive areas, after all.”

Those three areas on Miyu were so sensitive that even light touch made her moan. Given her lack of experience, Haruka must be doing something intense with her. I wondered if they were doing the same on their trip… Wait, that’s a vulgar thought while touching another girl’s breasts.

“So, you usually just get handjobs?”

“Yeah… pretty much.”

Handjobs were recent. Before that, I’d just ejaculated into her mouth. I struggled to explain, and Yamamoto-san suddenly corrected herself.

“Sorry, was that too intrusive?”

“It’s not like I was hiding it. It’s just… it involves Miyu’s dignity, so I can’t share everything.”

If I told Yamamoto-san that Miyu willingly drank my semen, which she’d called disgusting, how would she react? I trusted Yamamoto-san not to tell anyone, but it was still a sensitive topic.

“Got it. And like I said earlier, I think that’s a good thing about you.”

“Asking for permission?”

“Yeah. It makes me feel cherished.”

Yamamoto-san held my hands, encouraging me to grip her breasts tighter.

“So, you can touch my breasts anytime you’re at my place.”

“Anytime? Even after sex or while we’re just talking?”

“Even when I’m sleeping, bathing, cooking, or watching TV. If I’m wearing a bra, you can take it off.”

“Really? Well, okay, I’ll remember that.”

“You can do whatever you want to the rest of me too.”

Yamamoto-san took my free hand and guided it to her thigh, near her groin. She was giving me full access to her body whenever I was at her place. With her, I wouldn’t get scolded. It was unimaginable with Miyu.

“Oh, you have a TV and sofa too.”

“Yep. Want to watch something together?”

We sat side by side on the sofa, though it was smaller and more portable than the one at my place.

It was early evening, prime time for variety shows. Since I mostly watched anime and played games, I didn’t know many celebrities, so I worried about keeping up with the conversation.

“Do you watch TV often?”

“On my days off, I usually just lounge around watching TV.”

That was unexpected. I’d imagined her life as more vibrant. But sitting here, I realized she enjoyed relaxing at home too.

“Don’t you travel?”

“Not really. I go to festivals with friends and sometimes fishing with coworkers… Oh, and I have a camping trip planned.”

She did more than I thought, but it was different from what I’d imagined. I’d pictured her taking photos in front of famous landmarks abroad.

“What kind of job do you have? Modeling?”

“Hehe, no. I work at an izakaya. 820 yen per hour.” (T/N: Basically a bar.)

“I-Izakaya?”

It suited her bubbly personality, but I’d expected something better paid, like tutoring or helping at a ryokan. Why such a normal job?

“Isn’t 820 yen too low?”

“Hmm? What about your event job?”

“Office work pays about a thousand yen per hour. Setup pays more, and long days can earn me nearly ten thousand yen.”

“That’s a lot.”

Yamamoto-san seemed uninterested, leaning against my arm and staring blankly at the TV. The sofa had plenty of space, but she preferred being close.

“When are you working next?”

“Tomorrow and in four days.”

“I see. I’m working tomorrow and the day after at noon too, so we can meet again the day after tomorrow night.”

Meet again… We were just friends with benefits, a special arrangement to solve my problem. Was it okay to spend such couple-like time together?

She’d even allowed me to touch her anywhere, anytime. For example, I could rub her thigh while we watched TV.

(Wow… this texture is incredible…)

Miyu had some fat, but Yamamoto-san’s build and softness were on another level. It was a body made for sex. Some men might ejaculate just from touching her.

“Does it feel good?”

Yamamoto-san leaned against me without hesitation. My groin was getting tight again.

“Hey, Sotomichi-kun…”

She whispered something, her expression mischievous.

“W-What?”

“Nfufu.”

A glance up revealed Yamamoto-san’s intoxicating expression. Her usually innocent demeanor, now twisted into raw desire, hit me like a sledgehammer—a sight no man’s libido could withstand.

“Can I… suck you too?”

She wanted to give me oral sex. She tucked her hair to one side, her eyes sparkling.

“Uh, yeah, sure.”

Is this payback? Even after getting permission, Yamamoto-san only teasingly rubs my knees, not touching me directly.

“If… if you could… lick this…”

I felt like I was being told to boldly present my penis and beg for release, as men desire ejaculation. Yamamoto-san, who loves to serve, might find joy in being commanded for sexual release once our relationship matures. Hesitantly, I removed my pants and slightly spread my legs to make it easier for her.

“Wow…”

Yamamoto-san traced my penis with her fingers.

“Sotomichi-kun’s… naughty.”

She muttered something unreasonable, then leaned back to the headboard and began licking my penis. She licked from the ridge to the tip, sandwiching it between her lips and tongue, but only sucking the tip without taking it deep.

“Aah… ugh… haa…!”

Her mouth’s wetness, saliva’s stickiness, and tongue’s texture were perfect. I could declare there’s no better fellatio in the world.

“Mmm… mnyu… Sotomichi-kun… haa… how many times is this now… gchu… mchu…”

“Ugh… mmm… haa… aah… well…”

If I release now, it’ll be my tenth ejaculation between yesterday and today. If it weren’t for Miyu and Yamamoto-san, I wouldn’t be this sexually driven. Women’s influence is incredible.

“Puwaa… Sotomichi-kun loves sex too much.”

“Eh, well… isn’t that normal for guys…?”

“There’s no way ejaculating ten times is normal.”

Yamamoto-san played with my penis, enjoying how it curved back toward my stomach.

“Oh, Mariya’s on a music show.”

“The one whose videos are trending recently?”

“Yeah. Her music videos are fun. This is my first time hearing her live.”

Yamamoto-san turned up the TV volume. Using my stomach as a pillow, she faced the TV while sucking my penis.

“Can you see properly?”

“I want to keep sucking.”

“I see.”

For her, even a few minutes of sucking felt like a long fellatio. Women can continue sex even after orgasming, but men usually finish after ejaculating. Her ability to make partners orgasm just by touching them is truly inconvenient.

While giving head, Yamamoto-san reached between my spread legs, occasionally massaging my testes. The pleasure made me hold my breath to suppress moans. If I made noise, Yamamoto-san wouldn’t be able to hear the song.

“Nfufu.”

Yamamoto-san smirked, not stopping her hands. She enjoyed me suppressing my voice. She’s usually kind, but occasionally shows this mischievous side—just like the charming Yamamoto-san at school. That’s her true nature too.

“Mmm… ngu, mchu… jubu… zju… jubu…”

“Mmm… nf… ugh… mmm…!”

Her fellatio grew intense, her gaze clearly not on the screen. Was she even listening to the song?

“Gchu, mchu… pha. Hehe.”

“Haa, haa, your fellatio is amazing, Yamamoto-san.”

“Of course it is—it’s me doing it.”

Yamamoto-san, who’d made countless men ejaculate instantly. How many men even reached the point of receiving fellatio from her? Thinking about it, it’s strange for someone so experienced to have partners ejaculate so quickly.

“Sotomichi-kun’s tastes really good. Chu.”

“Oh, aah. I-is that so…?”

She kissed the tip of my penis. I’ve never even been kissed yet. My little brother got his first kiss before me. He’s kissed both Miyu and Yamamoto-san—so enviable.

“Does taste differ by person?”

“I don’t know. I haven’t done it since middle school, so I don’t remember.”

I almost understood, but asked, “Why?”

“Hmm? Because it’s frustrating.”

She answered simply. So, she too felt frustrated being used only for ejaculation. Despite her devotion to me, I assumed she’d been even more giving to past partners.

“Sotomichi-kun’s semen is super bitter.”

“Everyone’s told me that…”

Why is my semen so bitter? If it were tasty, I’d be appreciated more. Though tasty semen is also creepy.

“When did you have a girlfriend, Sotomichi-kun?”

“Briefly before summer. We broke up after a few weeks.”

“Because of your little sister obsession?”

“Exactly.”

Sachiko was a great girl. She, too, couldn’t forget the pleasure of Miyu’s fingers and was constantly frustrated. Everyone around Miyu is too influenced by her. That twin-tailed troublemaker too…

“Does Miyu-chan say it’s bitter too?”

“She said it’s fishier and stickier than squid sashimi.”

“Hmm… I see.”

Yamamoto-san looked smug for some reason. Then she resumed the fellatio.

“If you’re about to come, you can release in my mouth, okay?”

“O-okay.”

Despite disliking my semen, Yamamoto-san must have gotten used to it. Miyu, too, now drinks it calmly. Maybe the taste becomes addictive over time.

I sat heavily on the sofa, legs spread, pants off. A girl leaned over, sucking my penis. Could I have imagined this scene just months ago?

“Mmm… chu… jru… haa, ah… This comedian released a CD too.”

“I don’t know this person…”

“The muscular, highly educated, good singer, but famously uncoordinated Mon-chan.”

Yamamoto-san showed me a popular video on her phone. It was a comedy skit, but I didn’t find it funny at all.

“This person is popular?”

“He’s great at talking but bad at comedy, so he’s always teased for it. Being knowledgeable keeps him on various shows.”

“Intelligence is important, huh.”

Girls know so much about this stuff. Does Miyu keep up with celebrities? She’s a bit of a recluse, so she might not bother with small talk knowledge.

“Alright, let’s turn off the TV.”

Yamamoto-san turned off the TV, removed her clothes, and resumed her position. I was naked below, she above. We overlapped on the sofa.

“Oh…”

Her full breasts, enhanced by gravity, were incredible. Could this be…?

“What’s wrong? Staring so intently.”

Yamamoto-san sandwiched my penis with her breasts, licking the exposed tip with her tongue.

“Oh, oh, aah…”

But she only licked, occasionally giving light fellatio. Her breasts remained still.

“Mmm… ahh… it feels good…”

It felt good, but something was missing. Though I felt her breasts’ softness, my overheated penis couldn’t sense her body heat. Her breasts were just a sight, not a sensation. This was torture.

“Mchu… chu… chbu… mmm…”

Yamamoto-san kissed my penis repeatedly. Her love was poured into the tip, but I couldn’t enjoy her breasts, leaving me frustrated.

Though I was the one being pleasured, I felt like another man was stealing her away. I envied how lovingly she kissed my penis. I never thought I’d be jealous of my own penis.

I wanted to move my hips, to feel her breasts’ flesh. But doing so would interrupt Yamamoto-san, who was enjoying our “tongue kiss.”

“Mmm… ugh… aah…”

It felt good, yet frustrating.

“Nfu. Sotomichi-kun’s pre-cum keeps flowing. My mouth’s a mess.”

Yamamoto-san dripped saliva into her cleavage, adding slickness. Finally, finally, she’d give me a titty-fuck—

Or so I thought, but she continued fellatio, teasing me endlessly.

“Ah, ugh… I can’t… Yamamoto-san…!”

I couldn’t hold back any longer. This much teasing was unbearable.

“I… I want your breasts… to squeeze me…”

“Hmm? They already are, though?”

Yamamoto-san smirked, squeezing my penis with her breasts, but still not moving them. She was definitely teasing me.

“No, I mean… move them up and down… please… titty-fuck…”

“Titty-fuck, huh?”

She emphasized “titty-fuck.”

“You were so rough at school, yet now you’re so passive. I’ve teased you this much—you can aggressively use my breasts however you like.”

She wanted me to take her breasts aggressively. What a lewd busty woman. Even I felt frustrated.

“Then… instead of me moving my hips like before… can I use my hands to titty-fuck…?”

“So, you’ll use my breasts, and I’ll just lend them, while you do the rubbing?”

Yamamoto-san got off the sofa, placing her heavy breasts on my groin. “Go ahead, use them as you like,” she said, stopping her service and leaving me to my devices. Her devotion was so erotic, I could ejaculate just from watching.

I lifted her breasts, wrapping my penis in them, and moved them up and down. Her breasts were so soft, they clung to my shaft. As I increased speed, the weight felt like shaking a water-filled bottle. Her bare, beautiful skin, topped with those massive breasts, was obscenely lewd.

“Haa, haa, haa, aah… it feels so good… ugh… haa…”

I was giving myself a titty-fuck with Yamamoto-san’s breasts. No, it was masturbation. Yamamoto-san watched me with a blissful expression, reminding me of Miyu watching me during our intimate moments.

Each time I lowered her breasts to the base of my penis, the tip peeked out from her cleavage, my aroused, swollen penis exposed to Yamamoto-san’s gaze. It felt humiliating, yet arousing.

“Auh… aah… this is… bad…”

I wasn’t a masochist, yet her pitying gaze was incredibly exciting. I couldn’t stop using her breasts to stimulate myself. The shame of her watching my selfish act only heightened my arousal.

“Aah… aah… haa… ugh… it’s too good… ugh… I’m… coming…! Sorry, Yamamoto-san… aah… aah…!”

My raw penis, coated in her breasts’ slickness, erupted. *Splurt, splurt*—the second ejaculation was contained within her breasts, but the third spilled into her cleavage.

“Wow, that’s a lot. Way more than my breasts can hold. How’s that possible?”

Yamamoto-san rubbed my shrunken testes, amazed at the contrast between their size and my ejaculate volume.

“But seeing so much semen is really erotic.”

She opened and closed her breasts, enjoying the sticky sensation of my semen. Then, she sandwiched my still-hard penis between her semen-covered breasts again, her mischievous heart full.

“Oh, aah…!”

This was Yamamoto-san’s titty-fuck. Unlike before, she actively used her breasts to stimulate me.

“You could’ve been rougher.”

“But… I thought it might hurt you…”

“I said it’s fine, didn’t I? Like this… about this much…”

Yamamoto-san pulled my leg, positioning me so my knees were near her waist. She enveloped my penis deep in her cleavage, crushing it with the force of a vice. Smiling slyly, she began thrusting her breasts against my groin with the force of a sledgehammer.

“Oh, ugh, aah… That’s dangerous…! I just came…! Aah, mmm… haa… ugh…!”

Pleasure overwhelmed me, and I lost track of how many times I’d ejaculated. Despite resting with food and sleep, my body couldn’t recover so quickly. Each ejaculation felt like a shuttle run, and my heart couldn’t take much more.

“Hehe. You’re making such cute noises… You came so much with Miyu-chan before coming here, right?”

“Ugh, aah, ugh… I… I did…!”

With Miyu, I couldn’t resist ejaculating, no matter how many times. Whenever she told me to get hard, I did. Whenever she told me to come, I did. Being dominated by her was pure happiness.

“Does Sotomichi-kun like having Miyu-chan… fuu… mmm… tease this sensitive spot?”

“Eh, ah, no, that’s not…!”

With each thrust, Yamamoto-san’s breasts deformed, swaying wildly. Watching me writhe in pleasure, she intensified her strokes. The semen I’d released earlier acted as lube, making it feel like penetrating a wet vagina, yet the pressure was far greater than any vagina could provide.

“I… can’t…! I can’t take it…! Ah, aah… I can’t… ejaculate…!”

No matter how much I pleaded, Yamamoto-san didn’t stop. She even learned my most sensitive spots, optimizing her movements.

“Aah, guh, haa, haa… I’m dying…!”

Her serious titty-fuck was too good. I never wanted it to end, even if it meant death with my next ejaculation.

“Haa… that’s… ah, dangerous, I’m… coming…! Aah, aah… it’s coming… it’s coming…!”

I couldn’t hold back. I was ejaculating without even thinking of Miyu.

“Look, you’re twitching again… Want to release?”

“Ugh, ugh, aah… I want to…! But I can’t… ugh, aah, I’ll die…! Aah… aah…!”

*Splurt, splurt, splurt, doop, splurt*—!

Even as her breasts turned whiter with semen, she didn’t stop.

“Aah… guh… I’m dying…! I can’t ejaculate anymore…!”

“Hmm? If you don’t want to ejaculate, just don’t think of Miyu-chan.”

“Haa, ugh, I can’t… ugh, aah…!”

Her breasts slammed into my groin, semen splattering with each thrust. My vision blurred, and Yamamoto-san’s voice grew distant.

Why can’t I stop ejaculating? If this continues, I’ll lose not just semen, but my life force.

“Ugh, aah, it’s coming again… I can’t… Ah, ah, aah…!”

“Hehe. You’re making my breasts so messy… You know, ejaculating into breasts won’t make a baby.”

My legs trembled, and I felt my life slipping away.

I’m going to die from Yamamoto-san’s titty-fuck today.

“Are you about to die?”

“Ugh… I’m… already dead…”

Yamamoto-san slowly slowed her movements. Her body was drenched in semen, marked by my scent.

“Sotomichi-kun, you did this with Miyu-chan too, huh?”

She stopped, releasing my penis. Semen pooled on the floor. My body remembered Miyu’s forced ejaculations, even without thinking of her. Another secret exposed.

“Does it bother you… knowing we did this…?”

Though she said she wouldn’t pry into Miyu, she asked anyway. Why?

“…Well, a little.”

Yamamoto-san scooped up excess semen, heading to the bathroom.

“Sotomichi-kun, rinse off too?”

Invited, I rested until I could move, then joined her. We stripped, an unusual situation—naked only after sex.

“Good job today. Maybe I went too far?”

“Well, I don’t hate it.”

“Okay then.”

Yamamoto-san washed off the semen, lathered soap, and gently massaged my body. After her heavenly touch, we left the bathroom together. I dressed, watching Yamamoto-san beside me. No sex today, but it was fine. We’d meet again in two nights.

“Phew. Refreshed. Are you okay, Sotomichi-kun?”

“I’ll manage to get home.”

Yamamoto-san, with wet hair, used a towel instead of a dryer.

I had work tomorrow. Would I wake up?

“Should I clean up?”

“I’ll handle it. Not much to do.”

She pushed me toward the door. As I checked my bike, she brought water.

“Um… today was really fun for me.”

I felt embarrassed, but took the cup. The water refreshed me.

“Me too.”

I returned the cup. She placed it in the sink and returned.

“We’ll meet again, right?”