The small, grey car idled at a stoplight. Traffic was, thankfully, almost nonexistent today. The city streets were usually annoying to navigate but the drive on Saturday morning was much easier. Aubrey tapped the steering wheel and hummed along to the song on the radio. Levi was occupied on his phone, playing a fantasy strategy game. The duo had quickly gotten dressed after breakfast and were on their way to the supermarket. They had both calmed down since their shared kiss, now very much in the proper sibling headspace.
The first condition of their relationship that Aubrey had gotten Levi to understand was that absolutely no one could ever find out about it. This meant no sexual or even flirty antics outside the apartment. Though… they had found some creative ways to circumvent this rule.
Aubrey had chosen to wear a floral, yellow sundress for some fun. The weather was almost perfect for it, warm but not too humid. Levi had taken notice of the beautiful dress but kept his hands to himself. His eyes, however, wandered over to look at his big sister every few moments. He was occupied with his game but it didn't require that much focus. The boy's own wardrobe was much less fun, his go-to outfit was just shorts and a t-shirt. He didn't really know how to show off that well, but maybe thought that would be pushing it a bit too far.
Making a final turn, Aubrey pulled the car into a parking garage. She enjoyed having the car to get to classes and take Levi to extracurricular activities, but parking was a costly hassle in the city. This was to closest place to the supermarket that didn't charge the entire cost of their groceries for more than an hour's stay. Maneuvering into a parking space, the siblings swung the car doors open fully. It was nice to not be packed in between other cars, the garage was mostly empty.
"Ahhhhhhh." Aubrey stretched her arms up and arched her back as she got out of the car. The material of her dress tightened over her bra. It was half a natural motion and half a tactic to get Levi's attention. The boy tried his best not to stare, but he hadn't seen her in that particular dress too often. It suited her body very well. The light material flowed over her curves in all the right ways. Plus, the skirt was right at her knees, showing off her legs a bit.
Grabbing her purse, Aubrey led them out of the garage and down the street. It wasn't more than a three-minute walk, easy enough. But she still had Levi hold her hand to cross every street. He was a little peeved by the insinuation that he needed to be treated like a little kid. But the thought quickly left his mind once they got to the store.
They had a good routine for shopping here, Aubrey would push the cart along and Levi would find the items he knew to grab in each isle. They'd been doing this for several months now so it was getting to be an easy process.
"Hey, which one?" Levi held up two boxed casserole meals. Well, at least most of it was easy.
"Hmmm, they both seem good to me." Aubrey moved in to look at the boxes the boy was holding. She rested a hand on his shoulder and then slid it to his neck. She quickly pressed a fingernail to his soft skin and gently pulled it down. One of Levi's favorite sensations were those exact fingernails scratching down his back as he plowed into her. Aubrey had found it was an incredibly effective way to tease him in public. Her eyes never left the boxes of food.
"We're gonna need a few boxes, just get some of both." Aubrey ruffled his hair and went back to looking for other things. Levi stood still for a few moments, body tense from just that tiny stimulation. He wanted that again, but harder and longer. They just had to make it home. Just a little bit.
Aubrey had seen a few guys check her out as they walked around. It wasn't surprising and she was very aware of what kind of attention she could attract. Mostly they were respectful, only a handful of times she'd had to deal with a creep. One big advantage of going out with Levi was that he naturally disincentivized guys from approaching her, not many of them wanted to deal with a kid.
Levi was completely oblivious to this. He focused entirely on running and grabbing the right items to get them through the trip faster. Aubrey took some perverse pleasure in knowing that her little brother was too pure to realize that others might be jealous of his privilege as her lover. Lots of guys in this very store would give anything to use Aubrey in the ways Levi was going to when they got home.
They continued shopping without much issue, just some long touches and sibling-appropriate banter. Some of the staff here were familiar with them, another reason to be very careful. But their actions came off as more playful than incestuous. A very observant eye might have caught a glance that was just a bit too long or a light touch that lingered for more than a moment, but no one was even minding the duo. The store was relatively busy, lots of people went shopping on the weekends. But in a way that helped them slip unnoticed in the crowd of shoppers.
Finally getting in the checkout line, Levi stood next to his sister and leaned his head against her arm. They both wanted so much more, to grab and grind and thrust with all of their might. The sexual relief of the morning was just a distant memory now, more current needs were pressing them forward. They were, thankfully, able to keep those needs in check for the last leg of their trip.
Grabbing up all of their bags, the siblings headed back to the parking garage. The trip was uneventful, though Aubrey once again awkwardly had them hold hands to cross the streets. The grocery bags making it a bit cumbersome. Finally unloading everything into the trunk of the car, they both rushed to get the doors open.
"How fast can we get home?" Levi fidgeted in his seat with hands pressed into his lap.
"I will drive in the safest way possible." Aubrey breathed heavily. Her statement was as much directed at herself as Levi. "But we are getting there as soon as I can possibly get us there."
The drive went smoothly, if very tense for the two frustrated lovers. Aubrey had to put an extreme amount of effort into focusing on the road. She was grateful for the light traffic, even if she did know most of these roads pretty well by now. Levi closed his eyes for most of the trip and tried not to be a distraction. He'd managed to not pop a boner while they were in the store but his cock was getting harder and harder now.
Rounding the corner onto their street, Aubrey got a wicked idea. It was a straight shot to their apartment's parking garage. Hardly any other cars. A very sexually frustrated passenger…
"Hey, look here." Aubrey tapped her knee. Levi snapped to her instruction, unsure of what she intended. The older girl pinched a bit of her dress and pulled up, revealing more of her thigh. A quick brush of her hand left most of the material bunched up at her waist. It was just enough to be tantalizing.
"Ouhhhhah…uhuh." Levi openly stared at her legs, entranced by the daring display. Also now sporting a properly rock-solid boner. Aubrey just chuckled and kept her eyes on the road. Just a few more minutes.
After parking in their normal spot, Abrey readjusted her dress. Levi was already up and out of the car, waiting to get the bags.
"Carefully. Slowly." Aubrey knew she would have trouble heading her own warning. The pair had several bags of groceries slung across their arms but moved through the garage like overeager animals.
Finally, finally, the lock to their front door clicked open and allowed the desperate lovers back into the privacy of their own secret world. A deluge of bags was strewn onto the kitchen floor and then it was on.
Levi's much smaller body collided roughly with Aubrey's, the two of them feverishly kissing while tugging on articles of clothing. The height difference between them made everything a bit trickier. Levi's hands had instantly gone under his sister's skirt and were clumsily trying to remove her panties in a mad dash to get to her pussy. Aubrey was too busy working his belt loose to help.
Shorts now around his ankles, Levi pawed at Aubrey's ass while his tongue danced with hers. Their collective moans filled each other's mouths, barely leaving space to breathe. Their bodies demanded more, faster, harder, now. It was a lust crazed debacle of desperation. Never breaking their kiss, Aubrey shimmied out of her panties and lifted up his shirt.
Finally letting their mouths part, Aubrey fully pulled Levi's shirt off. She then dropped to her knees, hungry for that boy cock. They both tugged at Levi's underwear, unveiling his diamond-hard erection to the lustful gaze of his big sister. She shot her eyes up at him and gently kissed his tip. The boy shuddered but he needed more.
"OHH, fuck yes!" Levi groaned as Aubrey took his whole member into her mouth, swirling her tongue over the sensitive rod. He grabbed two fistfuls of her hair and pushed. Aubrey loved the feeling of him getting rough, his cock was just long enough to reach her throat without being unpleasant. She let him pump his hips a few times before she pulled back off his cock.
"If you're gonna fuck me, then do it right." Aubrey spun and bent over the table, hiking her dress up to her waist and spreading her ass cheeks. Levi immediately dove face first into her dripping wet snatch which caused the older girl to cry out. He wanted to fuck her, yes, but a ripe pussy in his face was too much of a temptation to not eat out. He only indulged for a few moments before leaving Aubrey to go fetch the stepstool.
Their height difference meant that Levi couldn't align himself if Aubrey was standing comfortably. They had quickly learned a small stepstool made all the difference and now kept one discreetly tucked in a corner of the kitchen. It was a bit of a hassle to go and fetch every time they wanted to fuck like this, but the result was well worth it.
"Get that fucking dick in me right now." Aubrey was rubbing her slick pussy as Levi finally stood in position. With some assistance, he lined up his throbbing tip with her entrance and rammed it home. Both siblings cried out in overwhelming ecstasy. Their backs arched and eyes screwed shut, embodiments of sexual bliss.
Acting on pure instinct, Levi began to move his hips. A slow stroke at first but quickly worked up to a proper ramming speed. His hands grabbed at his sister's hips, using them as leverage for harder thrusts. The delicious sounds of colliding flesh echoed in the room. Her body was his to use right now, to extract as much pleasure from as possible while inflicting that same pleasure upon her.
Aubrey had stopped thinking when her brother's cock penetrated her cunt. 'No thoughts, head empty' kind of pleasure resonated in her entire being. She was just able to keep her body steady, breasts mashed into the table. It was thankfully barren; they didn't keep anything on the table for this exact reason.
Levi grunted and kept up his relentless assault. He was determined to last a long time after the embarrassment of this morning. The hours of teasing he'd been subject to didn't help, but he managed to endure through sheer willpower. The lovers kept at it for what felt like an eternity. Cock and cunt afire with beautiful spasms of pleasure. Aubrey was now cognizant enough to wonder if her little brother would ever cum. Maybe he could go on like this forever.
That thought triggered her own orgasm, sending her into the stratosphere of pleasure as she screamed into her arm. Levi felt her clench around his cock and beamed in self-pride. Now ready to reach that peak himself, the boy let the full sensations of the moment wash over him and it only took a few more strokes to get him there.
"Auuubreey, I'm gonna cum in you!" Levi gave warning before his cock began to throb and pulse with huge waves of spunk. He shuddered and gripped her hips even harder, his small hands leaving telltale marks on her soft skin. Riding through his orgasm, the boy let out a long moan.
"Haaaaa~." Aubrey basked in the familiar feeling of her brother's virulent cum being pumped into the depths of her love tunnel. Maybe this time it would…. Possibly….
The exhausted siblings were locked in that position for a few moments, Aubrey splayed out on the table and Levi leaning forward on his sister's body. His small, boyish hands slowly loosened their grip on her hips and slid over her lovely ass. His cock now deflating, Levi gingerly pulled himself from the messy pussy of his older sister.
"Fuck. That was reeeeally good." Aubrey heaved with each breath. She bunched up her dress and pushed herself up off the table. "Could you unzip me?"
"Yeah, yeah." Levi had plopped into a seat at the table. He sluggishly moved over to pull the zipper on the back of Aubrey's dress. The older girl slipped out of the garment, letting it fall to the ground. Her bra came off in a flash and shoes were soon to follow. The now naked college student took another moment to steady her breath.
Levi stared openly, admiring the bountiful curves and supple skin of his lover. Though sexually exhausted, the boy did still crave physical affection. He moved in to hug her from behind, their naked bodies igniting with warmth at all of the skin contact. Levi nuzzled into her back. "You feel good."
"Ahh. You do too." Aubrey reached back and grabbed his shoulder. Now a bit alleviated from her sexual haze, she glanced around the room. "Oh shit, we need to put stuff in the fridge!"
Both siblings moved to sort through the bags of foodstuff and find what needed to be refrigerated. Aubrey opened the door and felt the cold air all over her body. She sorted everything inside while Levi rummaged for the things that needed to be put away. They quickly got that task done and then sorted the rest of the non-perishables.
"Here clean yourself up too." Aubrey handed her brother a pack of wipes as she was in the process of tidying up her own body. A proper shower would probably be in order for both of them but there wasn't a real rush. They would probably be dirty again in just a few hours.
"What are we gonna do for the rest of the day?" Levi casually asked as the two sorted the very last bits of food.
"I'm going to work on writing a paper for class. But you're free to do whatever you want."
"Yes!" Levi hopped away to his room, probably to boot up his gaming console. He was rarely allowed to play much during the weekdays, so weekends were also fun for that reason.
Aubrey watched as his naked form scurried from the room. She chuckled to herself and ran a hand over her chest. They were both sexually satisfied now but it was a fun guessing game to figure out which one of them would get worked up again first and initiate the next round. If previous weekends were anything to go by, they had at least two more good rounds left before the day was over.
"Levi!! Come pick up your clothes before you start that!" Aubrey exasperatedly swept his things into a pile on the floor. The boy was a bit lazy with cleaning up after himself, so it fell to Aubrey to make sure the apartment wasn't turning into a disaster area. Plus, a full set of each of their clothes on the dining room floor might have been a bit too suspicious to explain away if they had an unexpected guest.
The rest of the early afternoon was quiet. After putting on some casual clothes, Aubrey had started work on her paper and it was now almost complete. She was lounging on their small couch and taking a few moments to relax. A couple of nights ago she had sat Levi down on this very couch and ridden him hard. That had been fun… A small notification on her laptop pulled her out of her thoughts. She clicked onto the incest forum and found a message waiting.
It was from Polaris_34, the user she'd been communicating with quite a bit. He was apparently around her age and had a sister who was just a little older than Levi. Due to circumstances that he hadn't fully gone into, the two of them were on their own. That had led to their own relationship blossoming into a romantic and sexual one.
Aubrey, of course, took everything he said with a grain of salt but he seemed genuine and had been very helpful so far. He had given tips to switch from 'lover mode' to 'sibling mode' quickly and implored that they keep up their normal social lives outside of the house. Aubrey had unfortunately neglected a few friends and obligations in those first few nights with Levi. Moreso, he had also provided some good codewords that the siblings had taken to using. Signals to warn of a surprise visitor that had saved their lives on a few occasions.
The message read: 'Hey, I told my sister about our conversations and she seems interested in chatting with you. Would you be up to that?' Aubrey was more than curious, getting a better picture of these people's lives would be very informative. Levi hadn't really expressed any interest in the forum or the people on it beyond just casual questions.
She typed up her reply that yes, she would be more than happy to, then closed her laptop. Polaris usually took a while to respond. Just then Levi wandered back into the room. He had changed into a soft grey shirt and shorts that were meant for relaxing. "Auuubreeey, I'm hungry."
"Mm, I kinda am too. What do you want to eat?" Before Aubrey could get up, her little brother knelt in front of the couch and leaned over to rest his head in her lap. Gently setting her laptop aside, Aubrey smiled and rubbed his hair. "You're way too cute. Keep that up and we might have to postpone lunch for other things."
Levi turned his head and rubbed his face into her crotch. This caused Aubrey to tense and clench her thighs together. But he only hummed and then quickly stood up. "Maybe after, I'm really hungry."
The boy skipped over to the kitchen and began skimming through the options in the fridge. Aubrey huffed indignantly, the nerve of this boy to act all affectionate and then up and walk away! He was just a kid after all. But she would get him back for that. At precisely the moment he would least expect it.
Eager to see what kind of fun their after-lunch activities would entail; Aubrey followed her brother over to the kitchen to start cooking.