"Makoto! I have an amazing idea!" The girl said as she rushed up to her brother.

The older child was taken a bit aback as he stood in the bathroom, adjusting a tie around his neck. It was a fancy dinner, a family dinner at that tonight, and everyone had to look their best. "Komaru, don't try anything funny. Mom and Dad are going to be with us."

"See, that's what makes it exciting! Ta daaaa!" Komaru said as she revealed a three set vibrator and remote, a smile on her face.

Makoto blushed, but he still tried to put his foot down. "No, absolutely not. It's one thing if a random stranger sees us being...y'know...and it's another if it's a classmate, but not Mom and Dad. No way. Do you understand how...screwed we'd be?"

Komaru pouted. "I…I know, but…please? Just this once?"

Makoto sighed. "So, what do you even want to use these for?" He grabbed the remote out of her hands and looked it over. It had three settings, and a wireless connection to the three vibrators in Komaru's hand. Experimentally, he turned it to the lowest setting.

Komaru jumped in surprise as an incredibly low hum emanated from the vibrators, gently buzzing in her hand.

"I don't think we've ever used these before-"

"We haven't, that's the point!"

"Well, show me what you're going to do."

Komaru grabbed the vibrators and slipped one underneath her dress from the bottom and the other two through the front, doing her best to attach them to their respective places as she smirked at Makoto. Makoto's blush spread even more across his face, and got even darker, as he watched.

Eventually she got all the vibrators in place and presented herself. "See? You can't even see them!" Makoto smiled and turned the remote to the highest setting. "AHHHHHHHHH!!" Komaru moaned, so loudly that the entire house was able to hear, and she quickly threw her hand over her mouth, her entire body shaking viciously, her knees clashing together.

"Makoto? Komaru?" A voice called out. "Are you guys okay?"

Sputtering and frantically turning the remote off, Makoto yelled down the stairs. "Yeah! We're fine! Komaru just uh...slipped!"

"Ha…hahahaha…hahahahaha…" Komaru laughed to herself as she waited for her nerves to settle, her hands resting between her legs.

Komaru's brother glared at her. "This is a terrible idea."

"I-it'll be fine. Just…d-don't set it to max, okay…?"

"Yeah, sure." Makoto then set it to max again.

"AHHHHHHHNNNNNNN!!" Komaru shouted again as her breasts visibly shook.

"What's going on up there?" A different voice called out.

Makoto shut it off again and walked past Komaru, waving the remote a little in her face- "My remote, my rules~" Before walking out of the bathroom. "Sorry, she slipped again!"

Komaru grabbed his arm. "P-please…don't go overboard…w-we don't want to be discovered…"

"Hey, just trust me." She stared at him for a bit before nodding, and took a deep breath to settle down before they went downstairs.

The Naegi parents were just finishing up downstairs. "Hey kids!" Their dad declared, running forward to give them both a big hug. "Ready for a lovely evening?"

"More than you think," Makoto replied, reaching around to rub Komaru's lower back.

"Yeah, are we ready to go?" Komaru asked. Their dad let them go and their mother gave them a thumbs up. With that, the family piled into the family car and set off.

It couldn't have been more than a minute into the drive before Makoto reached into the pocket of his dress pants and pressed the lowest button.

"Eeep!" Komaru squealed as she jumped, mostly in surprise.

Their mother turned around and looked at Komaru. "Are you doing alright, sweetie?"

"Yeah, I thought a bug was on me, sorry." Komaru said, giving Makoto a side eye.

Makoto giggled a little before turning the remote off. "Y'know Komaru, if you're not feeling okay, there's still time to turn around."

Komaru knew he was giving her an out, but even if she was starting to have second thoughts, she wasn't going to back out. "I'm good, really."

"Suit yourself," he replied, before reaching into his pocket and turning the vibrators to the second setting.

"Mmmmmmm!" Komaru groaned. "Mmmmmm…iiiiii'm so hungry!!"

Their dad laughed. "Me too!"

Makoto reached over and poked Komaru in the stomach. "Can't control yourself, sis?"

"Nope! My stomach is just begging for food!" Komaru said, smiling even as a drop of sweat came down her face, and her hands twitched.

Makoto gave her a bit of mercy as they entered the parking lot of Hanamura Hot-Spot, the latest restaurant in town, opened by one of Hope Peak's underclassmen, by turning off the vibrator. The car parked and their parents got out, followed by Makoto and Komaru. As soon as their parents turned to go inside, Makoto reached out and groped Komaru's ass through her skirt.

"Needy, eh?" Komaru teased as their parents got them a table.

Makoto leaned closer to her ear to whisper. "This wasn't my idea~"

"I just offered the vibrators." She whispered back. "You're the one who's groping my ass in public~"

Makoto couldn't reply as the whole family was seated, with Makoto and Komaru on one side of the table and their parents on the other. Their parents quickly held up their menus and hid their faces behind them, at which moment, Makoto leaned over and kissed Komaru right on the lips.

"Mmmmph!" Komaru groaned, surprised by the kiss. Their parents looked over to see what had happened, but were met with Makoto and Komaru innocently looking down at their own menus. Figuring they must've just heard something, they turned back to their own, and Komaru looked over at Makoto.

Makoto winked at her and resumed looking at his menu. "So, Komaru, what will you be having?"

"Probably just steak. It's always an easy op-" Komaru was halfway through speaking when Makoto activated the vibrators on their lowest setting, "-TION!" Komaru finished as she shot up straight in her seat.

Both of their parents jumped too. "Komaru?" They asked in nearly perfect sync, at the same time Makoto turned the remote off.

"S-sorry! I thought I saw a…a spider." Komaru rushed to say, giving them a reassuring smile.

Their dad leapt again. "SPIDER, WHERE!?"

Their mom put a hand on his shoulder. "It's okay dear, Komaru took care of it, right dear?"

"Yeah, I was just seeing things, don't worry!"

The waiter came by and took everyone's order, and when they left, the parents began chatting again. Makoto, giving Komaru a quick smile as warning, turned the remote to its second setting.

This time, she was more prepared for it, and kept herself quiet even as she felt the small machines shaking against her genitals. Makoto frowned a little at her lack of reaction, and reached under the table to grab Komaru's thigh.

Komaru smirked at him as she opened up her legs a bit, giving him better access to it.

Makoto pressed a finger against Komaru's panties and rubbed her through them, feeling his fingers grind the small vibrator against the hood of her clit.

Finally, Komaru let out a low moan, quiet enough that their parents thankfully didn't notice, and she shifted her body slightly towards Makoto.

Makoto's hand moved away from her pussy and around her back, pulling her right up against him. Their mother looked over and smiled at the two. "It's so nice to see siblings who really love each other!"

"You have no idea…" Komaru said under her breath.

The waiter brought their meals over, and Makoto gave her enough of a break for them to eat. Befitting a restaurant founded by someone like Teruteru, the meal was delicious. From the very first bite, Komaru was in love, and she moaned, but this time, it wasn't really out of place.

When they were both finished, Makoto reached back under the table and hooked his finger over the hem of Komaru's panties. Komaru looked over at Makoto with a look of confusion. What was he trying to pull?

The answer was her panties, as he yanked and shimmied to remove her of them, letting them slide down her legs. Komaru stared at him in shock as she felt her panties fall to the floor, and Makoto slid them over with his feet, then snatched them up with his hands and pocketed them.

"Wh-what are you doing?" Komaru whispered.

"You didn't need them anyways," He whispered back before switching the remote to its highest setting.

"AHHHH!" Komaru moaned, accidentally slamming her hand down on the table.

"Komaru? Are you alright?" The siblings' mother asked, shocked by her daughter slamming her hand down and attracting the attention of others around them.

"I'm…perfectly fine." Komaru said, gritting her teeth and trying not to glare at Makoto. "I just…uh…" She hoped they wouldn't be able to hear the buzzing that felt so loud to her, "I…I'm fine." Without looking at Makoto, she thrust her hand down his pants, wrapped it around his cock, and yanked it out under the table. Their mother gave her a look but decided to brush it off, not yet hearing the buzzing.

Makoto's breath hitched and he bit the inside of his cheek. How dare she, the whole point of this was for her to get teased! Makoto shot a glare at her and tried to shift his hips away from her so she got the message.

Feeling him twist away from her though, she scooted closer and started gliding her fingers over his not yet fully hard cock.

Makoto felt himself growing harder and harder as a blush grew across his face, and his knuckles turned white around the grip he was giving his silverware.

Komaru smirked as she could feel his cock growing bigger, and she sped up her movements accordingly, feeling it throb under her fingers. Even so, she still had to bite her lip as she felt the vibrators going hard against her nipples and her pussy, the latter of which was dripping her wet juices onto the chair.

Makoto tapped his fingers on the table, practically shuddering with pleasure, when his dad suddenly perked up his ears. "Kids, do you hear anything?"

"H-huh? No…" Komaru said, her face paling as she stopped moving her hand.

Makoto's entire world froze as his dad looked at the two. "There's a weird kind of...buzzing?"

"Th-that's…umm…" Komaru looked to Makoto for help, but when he had nothing, she tried to reach for an excuse, and blurted out the first thing she could think of. "Th-they're…my…emotional support bees."

Makoto's cock went a little flaccid. She was fucked. "Uh, actually, I think it's my phone." In one fluid motion, Makoto packed everything away and zipped up his pants as he reached into his pocket and pulled out his phone. Then, he pulled his hand back into his pocket to turn the vibrators off.

"Uh, yeah, Sayaka?" he pulled the phone away from his ear. "Sorry, a school thing. I'm going to the bathroom to take care of it." And with that, he got up and left.

"I-I need to use the bathroom too. Sorry…excuse me." Komaru said as she got up and made her way after Makoto, her legs trembling, hoping they wouldn't notice how her thighs were soaked. The two parents looked at each other, shrugged, and continued eating.

Back in the bathroom, Makoto was standing outside of a stall. They had almost been discovered! His idiot little sister nearly ruined their lives! He never should've agreed to that, he knew that now.

Suddenly Komaru burst into the room and walked over to Makoto, pinning him against the wall. "Ma…Makoto…"

Makoto pushed her back. "What!?"

Komaru pushed him again and embraced him in a kiss, grabbing his hand and placing it against her pussy, moaning into his lips as he made contact.

Makoto tried to pull his hand back, and he pulled away from the kiss. "Wait, wait, that doesn't go away. Do you realize how close we were?"

"I know…and I am…hot." Komaru said, nodding profusely. "I…I want you to fuck me! Right here! Right now!"

Makoto's blush was undeniable, but he was furious nonetheless. "No! What's wrong with you? Now is clearly not the right time!"

"Oh don't give me that crap. Even before I started stroking your cock, you were getting hard!" Komaru said as she forcefully grabbed his crotch.

Makoto grabbed her chest, putting his hands down hard enough it seemed more like he was slapping them, and he pushed her away again. "I'm not kidding! I'm not in the mood for this!"

"FUCK ME, MAKOTO!" She shouted. "I KNOW YOU WANT TO, SO JUST DO IT!" She grabbed his pants, and yanked both them and his boxers down in one swift motion, his cock bouncing free as she reached for it.

Makoto was even more angry than before, but now his denial was gone. If she wanted him to fuck her, he was going to fuck her. As soon as his pants were pulled down, he took a handful of Komaru's hair and lifted her to her feet before turning her around.

"Fine, you want it? You can have it."

And with that statement, he bent Komaru over, flipped her skirt up, and brought his palm down over her bare ass; spanking her hard enough that even his own hand hurt from it, and a bright red handmark instantly settled into the pale globe of her ass.

She moaned loudly as she held herself up against the stall. "Yesss! M-more!"

Makoto spanked his little sister until her entire ass was bright red, and the skin was throbbing from how hard he had hit her. Satisfied with his work, he pressed her further against the stall, making her stand up straight as his cock prodded against her. He took a deep breath, shifted his hips back, and jammed his cock inside of her, as quickly and forcefully as he could.

"F-FUCK! Y-YES! HNNNG!" Komaru groaned, overcome with lust as she felt his cock slide inside her, knocking out the vibrator instantly.

Makoto reached up with one hand to grip her right tit as hard as he could, pinching her nipple almost flat between his thumb and index finger. His other arm wrapped around her waist, holding her lower body firmly in place as he jackhammered into her pussy, causing the stall wall to shake hard enough it seemed like it would collapse after every thrust.

On top of that, Komaru banged her fist against the stall as Makoto rapidly slid in and out of her pussy. She was already ready to cum from the vibrators, but she was trying to hold it back as much as she possibly could.

Once he was finished with her chest, Makoto moved that hand down and tapped his fingers against her clit, hard enough that each hit sent a lightning bolt through Komaru's body. At the same time, he could feel his body tightening, and he knew his release was coming soon.

Komaru was the first to finish, shooting out a massive amount of juices as she let out everything she'd been holding back that evening, groaning as it all came flowing out.

Makoto pulled out of his little sister and spun her around, the look of pure bliss on her face simultaneously sexy beyond measure and quite adorable. Makoto forced her to bend over at a ninety degree angle before shoving his cock in her mouth, cumming as he did so to make sure she would swallow every drop.

Komaru gagged a bit at first, but quickly recovered and started swallowing the massive amount of cum going into her mouth and down her throat.

When Makoto finished, he yanked Komaru's head back and stood her up straight. "Finished?"

"Y-yes…thank you…"

Makoto got himself dressed and ready again. "Okay, I'm sorry I freaked out like that. Let's just...not do anything else until we get home, okay?"

"Y-yeah…" She said, fully removing the other two vibrators still strapped to her nipples, as well as picking up the one that had been in her pussy.

Suddenly, the stall door swung open, revealing Chihiro Fujisaki, a horrified look on his face. "G-g-guys?"

"AH FUCK!" Komaru shouted. "I-I mean…uh…you…heard everything…didn't you?"

"Y-y-yes..." The poor programmer stammered. Makoto facepalmed.

"Weeee…can explain?" Komaru said.

"Oh, no no no! There's nothing to explain! I…I just think, Makoto, maybe you and your girlfriend can...communicate better?"

Komaru froze, and then breathed a sigh of relief. "G-girlfriend, yeah! Y-you're right. Anywayyyy…we…have to go, right Makoto…dear?"

Makoto pulled Komaru close and kissed her on the head. "Hehe, yeah, Chihiro...sometimes we can't communicate well, but that's just it! We can work on it. Now uh, yeah, we should get going. See you around, Chihiro?"

"S-sure thing!"

Makoto led Komaru out of the bathroom, but paused for a second when he left, noticing the 'Men's Bathroom' sign. He shrugged it off and they continued to the table.

"Sorry…I had a stomach ache." Komaru said.

"Yeah, me too..." Makoto added.

The siblings' mom stood up as she smiled. "Don't worry about it, we already got the check, so now we just need to go pay. Come on, kids, let's go." Komaru stood up as well, and as they were walking towards the front she turned and saw Chihiro standing nearby.

The programmer squeaked as Komaru and Makoto walked by, and Komaru frantically tried to warn her brother. Before she could, Chihiro whipped his phone out of his pocket and sent a quick text message to Makoto.

"Don't tell anyone I was in the men's bathroom, and I won't tell anyone you're from America."