"Makotooooo!" Komaru said as she barged into Makoto's room and jumped onto his bed without a second thought.
Makoto jumped a little as his little sister bounced a bit on the covers and pressed up against him. "Gaah! Komaru, what is it?"
"I want to try something!" She held up her phone, showing an image of a girl standing completely naked in the middle of a park. "It's this thing called 'exhibitionism'? I don't know, it sounds fun~!" Makoto was shocked, but he knew he shouldn't have been. Ever since he and Komaru had done... each other, she had grown to want stuff 'like that' more and more. Even two years after it happened she was still finding stuff to try out.
"Uh, yeah," Makoto answered, only vaguely recalling what that was. "I think so. It looks nice, at least."
"I was thinking…we try going to the store and…you tell me to…take stuff off…" She said and despite her previous enthusiasm, as she spoke about it, a blush grew on her face.
Makoto blushed a little too, and it was a little surprising he didn't keel over right then and there with how much blood had suddenly flowed south. "R-r-really!? Cause, if you want to, we could go right now-"
"Y-yeah! You're okay with that?" She asked, giving him a look of excitement.
Makoto grabbed her hand and pulled her a little closer. "Of course! And if it goes wrong, Big Bro is here to make things right." Komaru smiled and nodded.
The two of them made their way to a nearby clothing store that, at this time of day, was mostly empty, but still had a few people milling around. The two entered with Komaru twirling around, wearing a short skirt and thin t-shirt, her breasts, having already grown quite large, bouncing around slightly. "Okay, what first?" She asked Makoto as the two walked in.
Makoto leaned over so that he was right next to Komaru and whispered into her ear. "Are you wearing a bra?" Komaru nodded. Makoto grabbed his sister by the hand and led her to a men's clothing section. He led her to a point behind a few racks that made it hard for them to be seen, and put out his hand. "Hand it over."
"O-oh! Okay!" Komaru thought it over for a second, before she reached behind her back and under her shirt, where she undid the straps on the back of her bra. She'd never done this before but she was sure she could figure it out. She slid the straps down her shoulders as best she could, and, after some struggling, she managed to pull the bra off and slip it out from under her shirt, handing it to Makoto, feeling the fabric scrape against her nipples, tickling them, and giving Makoto a smile. Makoto smiled back as he slid the top into his jacket. Upon zipping it up, and placing an arm over his stomach, he could ensure it was hidden from sight while still keeping it safe. He led Komaru back out from behind the rack and motioned for him to follow her. Makoto led her towards a girl who was sorting a display of jeans on a table.
"Um, Makoto?" She whispered, with some uncertainty. The girl hadn't noticed them yet.
"Just trust me," Makoto told her. "Hello, ma'am?" He asked. The girl turned around to face them. She was just a little older than them, probably working here as a part-time job during high school or college. "I was wondering what's over there." Makoto pointed opposite of where she was facing, and as soon as she turned around, Makoto gripped the bottom of Komaru's shirt and flipped it up, exposing her stomach and chest.
"Ahhhh!" Komaru shrieked as her breasts were exposed to the open air, the sudden movement causing them to bounce around, her pink nipples standing out against her pale skin. Before the girl turned back around, she pulled it back down, and when the girl turned back around, Komaru was blushing furiously, but had let go of her shirt, trying not to look suspicious. The girl gave them a confused look.
"What's the matter?" Makoto asked 'sincerely.' When Komaru failed to answer, he turned around to the employee, who explained that that section housed the changing rooms and child clothes. Makoto thanked her before pulling Komaru back to the same spot they were before.
"M-Makoto! Th-that was…!" She tried to find the right words.
"Aww, did you not like it?" Makoto teased. "Should I take off your shirt and bring you back over so you can apologize?"
"Yes! I-I mean, no, no! I-I couldn't!" Komaru said, flustered. She hated how much she loved when Makoto got like this.
Makoto took a step forward and reached around to grope her ass. "Hmm, maybe I need to make up your mind for you?"
"A-ahhh!" She moaned, and put a hand against his chest to steady herself. "Stop teasing me! J-just tell me what to do next!"
Makoto flipped up her skirt and gripped her panties with one hand. He slid them down her legs a little before speaking again. "Step out of these for me."
"O-okay…" She said, and as the panties fell to her feet, she moved her feet, and let Makoto take them away. She was now left without any underwear at all, the only thing covering her bottom being a short skirt. "M-Makoto…I…"
"What is it?" Makoto asked as he slid her panties inside of his hoodie as well.
"I…I feel…mmmm…" She moaned, unable to articulate as she could feel herself growing more and more horny.
"Do you feel good?" Makoto asked as he put his other hand under her skirt, rubbing her pussy with the tips of his fingers.
"V-very good…ahhh!" She moaned again, putting a hand over her mouth to try to keep herself quiet, afraid of someone overhearing.
Makoto pulled his hand away and giggled a little. "Good, because we haven't even gotten to the fun part yet~"
"Fun…part…?" She said, relieved from his hand being gone, and looking at him with a mixture of fear and excitement. Makoto gave her a sadistic grin as he took her hand again. This time he led her towards the front of the store, where there were more people nearby. Along the way he grabbed a t-shirt off a rack and held it close to his body, having to let go of Komaru to do so. Once they were towards the front he approached an older employee who was watching over the store. Before he could speak, Makoto 'accidentally' tossed the shirt from his hands. The sudden motion made the employee look over at them. Makoto turned to Komaru and asked-
"Hey, Sis, could you pick that up for me?"
"S-sure…y-yeah…" She said, and gulped. She turned to face the shirt and bent over, trying to hold her skirt down over her bare ass. Surely that wouldn't be unnatural, right? A girl holding her skirt down while bending over was normal! She grabbed the shirt and started standing back up.
Makoto leaned to the side a little, letting a pen fall out his hoodie pocket. "Oh, and that too? Sorry, I'm just so clumsy today."
Komaru gulped and, slipping the shirt underneath her arm, still managing to hold her skirt down, she grabbed the pen as well. By the time she had stood back up, Makoto was already talking to the employee. He made up some story about not knowing the price of the shirt, was confirmed, and went back to hang the shirt back up. Komaru followed closely behind, and after quickly checking to make sure nobody else was looking at that moment, Makoto gave her an evil smile.
Komaru felt her face burning a bright red, and her nervousness grew at Makoto's bright smile. "Wh-what is it?" Without a word, Makoto suddenly lunged forward, gripped her skirt with both hands, and slammed it down her legs. Immediately he jumped back, admiring how his sister's exposed pussy looked in the middle of a clothing store.
"AHHHHH!" she shrieked as she shot her hands to her pussy, feeling her body bend over reflexively, only causing her ass to become bent and thrust out. She quickly looked around to make sure nobody had noticed them. With her hands against her crotch, she was able to feel how wet she was. Her body shook as she looked at Makoto, the skirt around her ankles, leaving her basically naked except for her shirt.
"You look good~" Makoto cooed as he watched his sister bend over. "Why don't you turn around real fast?" Komaru gulped as she turned around, and after a moment of hesitation, she gave her ass a little shake. The movement made it so she ended up stepping out the skirt, but she hadn't yet noticed. After shaking her ass a bit, she turned back around, still covering her front. Makoto looked out again and mentally mapped a route from here to the changing rooms where nobody would spot them. He scooped up the skirt from the ground and ran a bit forward along the path, waiting to see if Komaru would follow him.
Realizing that now she was completely bottomless, she ran frantically after Makoto, her unbound breasts bouncing wildly with every step. She constantly looked around, worried somebody would pop around a corner and see her standing there naked from the waist down. Makoto ducked inside of the changing room, which was a series of stalls next to each other in an enclosed space. Once Komaru rounded the corner, he made sure she saw which of the stalls he ducked inside of. Komaru quickly followed him, jumping inside of the stall and quickly closing the door behind them, her heart racing.
Before Komaru could say anything, Makoto pushed her against the wall of the stall and gave her a deep kiss. He couldn't resist letting his hands explore her body, one going down to rub her clit and the other reaching up to grope her chest.
"Mmmm-!" She moaned as she felt his lips against hers, and her hands fell away from her crotch as he groped her, which went behind his back to pull him closer. Makoto eventually pulled back, panting and harder than he ever could've imagined. Without words, he unbuttoned his pants and pulled them down, alongside his underwear, in one go, letting his cock bounce free in front of Komaru.
"Wh-what do you want me to…?" She asked breathlessly.
Makoto put a hand on her shoulder and gently forced her down to her knees. "I want you to suck it."
"O-okay…" She said. She reached up and gently wrapped her hands around his throbbing dick. It had definitely grown over the past few years. She opened her mouth, leaned forward, and placed her mouth over his head.
"O-oh..." Makoto moaned, unintentionally bucking his hips a little. Was there any feeling in the world better than his sister's mouth on his cock? Probably, but most of them still involved his sister. He gently gripped her hair with one hand and let her continue. She flicked her tongue against the slit, licking up the precum that leaked out, before she moved her tongue around his head as she moved further down his dick. She could feel his veins pulsing blood through the organ. Makoto pushed his hips forward a little, getting his cock as far as it could into Komaru's mouth without gagging her. Gently, he used his grip on her head to begin moving her back and forth along his length.
She allowed him to take the lead, focusing on wrapping her tongue around his shaft as it pulsed underneath her warm tongue. She had never fully gotten used to the strange taste, or the smell that permeated her nostrils. It wasn't long until Makoto felt the pressure in his cock reach a climax, and with a choked whisper of warning, he released his load into Komaru's mouth, holding her in place so that she wouldn't make any mess. Komaru gagged a bit as his cum slid warmly down her throat, swallowing every drop that flowed out of his head. Just like with his penis in general, she never quite got used to the bitter taste, or how it felt as it went down, but she happily guzzled it all down without argument. When Komaru had finished, Makoto pulled out and quickly began putting everything back on. In contrast, once he had gotten fully dressed, he quickly grabbed Komaru's shirt and forcefully took it off her body.
"H-hey, wait, I-" She tried to argue, but found herself unable to as the shirt was forcibly pulled off her body. She felt immense embarrassment overwhelm her body as she was now suddenly left completely naked, her breasts jiggling slightly. As Makoto tucked her shirt into his jacket as well, he couldn't resist reaching forward and pinching her nipple a little. It seemed like every day they somehow became both fuller and perkier, and Makoto wouldn't complain if he spent the entire rest of his life playing with them.
"A-ah! M-Makotoooo…" She said, practically purring. While groping Komaru with one hand, he turned her around towards a bench that had been provided. He sat her down on it and then took a step back. She gave him a quizzical look, but did as she was silently instructed. Makoto gave another smile like the ones he gave before as he took another step back, reaching behind him to put one hand on the door handle. "M-Makoto?" She asked nervously. Makoto didn't respond, instead just waving 'Bye' before opening the door, stepping out, and shutting it behind him in one fluid motion.
Komaru sat there in stunned silence for a few moments, before she began to panic. She was completely naked! In a dressing room! She rushed up and was about to burst out of the door before realizing that was stupid. Makoto wouldn't leave her completely alone like this, so he was probably still nearby right? She just needed to catch him…
She opened the door and peeled out, her nude body trembling as she looked around, seeing no one as she searched for Makoto. Makoto stood just outside of the booth area, to the point where Komaru could just barely see him. He gave a teasing little wave to her once he had seen her open the door. She pouted at him, but gently opened the door, stepping one foot out, then a leg, and then her entire body was out. She was exposed…completely naked…where somebody could see her…she felt dizzy, and had to turn around and put her hand against the handle, leaving her ass exposed instead of the front. Makoto couldn't help but reach forward to give her ass a pinch.
"Eeek!" She said, jumping away from the door and feeling her bare breasts slap against the door. It caused her to step back, and press her ass against the wall. She whined. Everything was reminding her of her own nudity! Even so, she took a deep breath and turned towards Makoto. With her body shaking, making her breasts jiggle, she took a step towards him, then another, putting her hand out, until she was almost able to reach him, and grab her clothes.
Makoto took a more confident step back, delighting in his little sister's little whimper. Taking a moment to turn around, he looked at the store on the tips of his toes. There appeared to be nobody there except for them and the girl they had seen before, who was now taking her supervisor's position in the center of the store. Getting Komaru out of here would require distracting her, but that didn't mean he couldn't have a little fun first.
"Makoto!" She whispered, watching as he continued moving away from her. She took another step out, she was now out of the changing rooms, and was out in the main store. She trembled behind a set of shirts, which only covered her chest, leaving her ass and pussy exposed. Makoto took a couple of very slow steps back, kiting Komaru along the row of shirt displays. Just for a bit of fun, he reached into his hoodie and pulled out her bra, holding it forward.
"Oh that's just mean!" Komaru said with a pout, feeling her breasts rising and falling with her rapid breathing. She took a deep breath, and started running towards him, feeling her breasts bounce wildly and her ass cheeks jiggle as she leapt for him. Makoto gasped at the sudden bravery of his sister, but his wits weren't addled by the fear of being discovered naked in a clothing store. He took a step to the side and let her fall to the carpet.
"Ahhhh!" She shrieked as she fell onto the floor, putting her hands out to stop her fall. She felt her breasts slap hard against the floor as she landed on her knees, leaving her dazed as she laid with her chest touching the ground, and her ass waving in the air. Normally Makoto would've done something more to her, but panic set in. The girl had heard something, and was now walking towards them. Thankfully both of them were bent down enough that she couldn't see them yet, but it would only be a few seconds before she was over here. Makoto lunged forward to Komaru's side and picked her up a bit.
"H-huh…?" Komaru said, still dazed, but allowing him to help her to her feet. Before Komaru could fully stand up, Makoto bent her down a bit before whispering in her ear. "Stay low, walk to the children's section, then back around out the entrance. Hide around the side of the store and I'll be there in a bit."
"O-okay…" She said, and after a nod, she got down on her hands and knees and started crawling over towards the children section. She felt ridiculous and completely exposed, but she did as she was told.
The girl rounded the corner to the coat rack right as Komaru disappeared behind another one. "Is something the matter here?"
Makoto chuckled a little and adjusted his arm under his jacket. "No, no, nothing at all." When Komaru heard the woman's voice, she immediately understood, her shout had attracted attention. But wait…as her brain recovered, she finally realized…did he want her to go…OUTSIDE?!
The look on the girl's face turned to one of suspicion as she noticed the bulge in Makoto's hoodie. "Kid, mind telling me what you got in the jacket there?"
Internally, Makoto screamed. Why him!? Wasn't Komaru supposed to be the one getting humiliated? Maybe, he thought, he could play this off. "Nu-nothing, nothing at all!" Komaru couldn't help but giggle as she heard them talking as she started making her way towards the entrance. Sure, she was the one who asked to be put in this situation, but that didn't mean she couldn't enjoy his own embarrassment. She made her way to the entrance, which was still empty, and stood up, looking up over the top. The woman faced away from her, so she was able to signal to Makoto that she was at the entrance
Makoto nodded, but that just made the girl even more suspicious. "Kid, open the hoodie, or I'm taking you to the back and contacting security for shoplifting." He knew that the store most likely didn't have security, it was too small, but Komaru needed him in order to get home. With a sigh, he unzipped his hoodie, and let his little sister's clothes fall onto the floor.
Komaru froze. Wait…was she going to…? No…not that! Anything but that!
The girl lunged forward with a look of triumph and seized a pair of panties. "Ha, I've got you! you should know not to ste-" Komaru wouldn't be able to see it, but Makoto saw the whole spectrum of looks on the girl's face. Shock, confusion, close analysis, shock, a little more confusion, and then a deep, deep blush. "These aren't from our store," the girl choked out.
Oh…
Komaru knew she should try to slip out of the store while she had the chance, but not only was she scared to go outside completely nude, but she was also curious what the woman would do now.
The girl dropped the panties to the ground. Makoto felt like he was about to cry. Was it too late to tell her that his nude sister was right behind her? "I-" Makoto started to choke out, but before he could, the girl leaned down and...
gave him a hug?
Komaru creeped closer, now only a few feet away from the two, standing on her tiptoes to see what was happening. She knew that if someone came in now, her ass would be not only completely exposed but in quite a lewd position, but her curiosity had gotten the best of her.
"I'm so sorry for jumping to conclusions," The girl began. "I know that being that young and having these kinds of questions about your gender can be hard, and I don't want to make you feel ashamed if that's how you feel." Makoto made the most painful eye contact of his life with Komaru as the girl tightened her grip around him. Was there a way to tell her to knock the girl out? Or kill one of them? Anything to make this situation less painful? The girl separated the hug and leaned back, giving Makoto a warm smile. "Do you forgive me?"
Seeing Makoto's eyes, Komaru quickly slinked her way back towards the entrance, only to find somebody approaching! Thankfully, they hadn't noticed her, even through the massive windows, so Komaru quickly ducked into a corner, as the man walked inside, the bell above the door signaling his entrance. Komaru held a hand over her mouth to keep herself from making noise as she sat completely nude only feet away from the man, who seemingly was looking around for some staff. Komaru creeped over a little, then a little more, and a little more, making her way behind him. She knew she had to get out of there before the girl made it back to the front. Thankfully, the guy started walking further into the store, so Komaru ran through the door, causing the bell to go off a second time. Komaru ducked out of view, in the space between the store and the outside world, just in case the man turned around at the bell sound.
After saying her forgave the girl, she handed the clothes back to him, and Makoto made his way to the entryway, where he and Komaru snuck outside before the guy or the girl could see them. The two made their way to the side of the store. He carried her clothes in his arms, handing them to her one by one as he spoke.
"Sorry, that was... strange." He apologized.
"Yeah yeah whatever, please give me my clothes, I'm literally standing outside NAKED!!" Komaru said, clutching her arms to her body, one hand barely covering her nipples as her other hand rested between her legs, against her wet lower lips. Makoto handed her each of her pieces of clothes, save for one; when she reached out for her panties, he pulled them away. "Hey!" she said, pulling her skirt down.
"You can have them back on one condition," Makoto stated as he stepped forward, to the point where he was practically pressing Komaru against the wall of the store.
"Wh-what?" She asked nervously, still incredibly horny.
"I want you to masturbate for me," Makoto purred, leaning down to kiss her neck.
"H-here?!" She asked, looking around, and moaning at the kiss.
"Yes," Makoto whispered, at this point not caring about if anyone saw them. With one hand, he reached into his pants and began stroking his cock while he kissed and licked at her neck.
"F-fine…" Komaru said as she reached down, and put her finger against her lips. As soon as she made contact, she moaned. She could tell she was already close, it wouldn't take much. But even so, she gently rubbed the outside of her pussy as her other hand creeped up and over her chest, tightly gripping her breast as she masturbated right there in the open. Makoto pulled her hips forward a little with his spare hand, reaching around to grope her butt as tightly as he could. He had already become hard again, and the combined feelings he got from his hands and the taste of Komaru was already threatening to finish him.
Despite her recent brush with almost being discovered, Komaru wanted more stimulation, and grabbed her bra and shirt, pulling them both up so her breasts could bounce out freely. Her nipples were hard from both the cold air and the immense arousal she felt. She focused on the rush she felt as she knew anybody could come by and see her exposed breasts like this. She used that to grope herself thoroughly, rubbing her nipple with her thumb as she inserted her finger inside herself with a squelching noise. She felt her inner walls clench around her finger as she started to gently thrust in and out of herself, moaning all the while.
Makoto's mouth moved down until he could suckle on Komaru's breast, rolling her nipple around with his tongue. The hand on her ass moved up to her back, pressing her against him and making it so that when he stroked his cock, it rubbed through his pants against her stomach.
"M-Makootoooooo~" She moaned his name loudly as she thrusted faster and faster, the squelching noises growing louder as she bucked her hips, pushing out her chest so Makoto could have better access, not that it was needed. She could already feel that familiar pressure building inside her body, and she could feel it was gonna be a big one. "M-Makoto…I'm gonna…!" She thrusted deep inside herself as she came hard, her entire body shuddering wildly as she climaxed, spraying her cum onto the ground underneath them, erupting in waves from her body.
Makoto came at the same time, feeling his cock erupt in his pants as he released his sister's tit from his mouth and leaned back. The look of pleasure on her face when she came was never not wonderful to see, and everything about the experience made Makoto feel warm and happy. As the two held each other as they climaxed, Komaru looked up to meet his eyes, giggling.
"We definitely need to do this again, but…next time…you need to do something with me…deal?"
Makoto giggled a little as he looked into her eyes. "Sounds like a deal~"
Komaru leaned forward and gave him a small kiss.
"Let's go home."
Makoto dressed his sister for her, with one exception.
"You don't really need the bra, do you?" He rhetorically asked as he slid it back in his hoodie. Komaru laughed.