Aaron isn't sure what worried him more: the mere act of what he and his twin sister did, or her sudden change in attitude towards him.

Before, Heather was moody, at least bit a little bit of time during each month, and she was emotional and opinionated. Yet, since their little 'incident' two months ago, Heather has treated him more like a boyfriend than a brother. Her usual passiveness towards him that had developed into a very obvious attraction had evolved further into nothing but non stop affection and coaxing. They hadn't had the opportunity to do what they'd did before again-- partly due to Aaron's own apprehensiveness as well as their father-- but that hadn't stopped her cuddling up to him whenever she got the chance. Most nights when it was bedtime, Aaron would have to endure his sister's doting, but he often attempted to draw the line when she would reach for his crotch or make a suggestive move.

It wasn't that his sister was unattractive-- far from it, in fact; though she was the same age as him, her budding young body was slowly but surely gaining the curves of a young woman, though she was still lacking in the chest department, something she often openly complained about when it was just the two of them. It wasn't that Aaron couldn't perform adequately either, for their first time had definitely been one to remember for the both of them. No, it was Aaron's indecisiveness and worries about the future that held him back.

Putting aside the moral implications of their secret acts and the mere fact they were identical twins, Aaron wrestled with the mere fact that this behaviour could extend on after their teenage years, if she didn't eventually look to someone else. Aaron was smart, though some might argue his viewpoint to be pretty accurate for his age in lacking in wisdom and depth-- he was sure that if he gave into her peer pressure and did what she wanted, then it would only make her 'double down' on their so-called relationship. Sure, being close with his sister was nice, but being that close was...worrying. What if he got a girlfriend and she found out he was banging his sister? What if their dad found out and separated them again? There were a lot of things to consider, and though his sister was all but ignoring the warning signs, Aaron could see them as clear as day.

It was a warm and arguably humid summer afternoon in the middle of summer break, a time when they didn't have to worry about school or grades and could enjoy a good 2 months or so of relaxation. Aaron had spent most of his time indoors-- he wasn't much of an athletic kid and he spent most of his time after school playing video games anyway, so this was a good time to do pretty much the same, much to his dad's chagrin. His sister had been out and about to places, predominantly to her friend's houses to hang out for several hours at a time. Thankfully, her best friend lived in the street so there wasn't much hindrance from her father to go out. 

On that warm afternoon, Aaron was alerted to the sound of his sister coming back home earlier than usual, which concerned him. She normally left in the morning to go to her friend's house and then didn't return until the later afternoon-- yet, it was just hitting the cusp of noon and she was already home. The orange and cream cat was immediately suspicious, but it didn't take long for him to find the reason why. Before he could even move out of bed, where he had been playing his 3DS, his sister barrelled into the room with a knowing twinkle in her eye.

"Aaron." She immediately demanded his attention, but his eyes were already upon her. She looked...sweaty, but that was to be expected given the heat. Aaron was acutely aware of her tiny shorts and the vest that just barely covered her top torso, its front adorned with a pink streak and the face of a cute puppy.

"What? You look exhausted." He pointed out, but her face didn't falter.

"I just heard from Abby," She began, referring to her best friend. "The carnival's in. They just finished setting up last week and this is the last day they're open! I already asked dad and he says we can go."

"Wait...you want me to go out?" Aaron grimaced at the thought of being in humid heat for the next few hours. He was pretty comfy on his bed in just his pyjama shorts. Heather's eyes ran over him for a moment and perhaps lingered just a little too long before she stared him right in the eyes and frowned.

"C'mon, Aaron. It's the last day! Don't you wanna have some fun instead of being inside all day?" She complained, and Aaron shrugged, turning his attention back to his 3DS.

"I like it inside." He replied rather indifferently.

"B-But..." Aaron didn't even look her way as she complained, and that was his mistake. Before he could react, she leapt upon him and sunk her mass down onto his stomach, almost blowing out the air from his lungs. He wheezed and keeled forwards, snapped his 3DS shut and placing it to the side.

"J-Jesus, Heater!" He sucked in a breath and coughed, squirming beneath her pouting form. "Fine, fine! I'll go! Just get off me!"

Satisfied, she relented and eased up off him, quickly averting her gaze from his irritated glare. Aaron grumbled quietly as he dragged himself out of bed, stepping over to the drawers and pulling out a clean shirt, yanking it on. He reached for some underwear and a pair of shorts next, but glanced over his shoulder just in time to see Heather intently watching him. He grimaced, and she seemed to get what he wanted. The feline girl turned on her heel and strode out the room, letting him get dressed in peace.

The more Aaron thought about it, the better he felt. Sure, he would have liked to stay inside, but maybe the carnival would be fun. He went last year and they had all manner of things: a ferris wheel, a couple of small roller coasters, plenty of skill cranes and other fun things you could win prizes on. They'd gone last time with their dad, but Aaron had a feeling his father would stay behind today-- his work had left him all but exhausted most of the time.

After he was dressed, Aaron met his sister downstairs. One brief farewell and a quick exchange of pocket money later, the two cubs were on their way to the carnival that sat on the edge of town, set up in the city's largest park so that they had as much space to work with as possible. The twins saw it before they even got to the entrance-- it was hard to miss the giant ferris wheel and the screams of kids and adults alike, sitting in seats that pistoned up and down atop a tall, cylindrical ride. Heather reached out to grasp Aaron's hand and pulled him along towards the entrance. Entry was thankfully free for kids under 15, so they swept by security and into the park itself.

To say that Heather was perhaps a little too excited was an understatement. Not only did she have a pretty short attention span when she got too excited, but she could become almost manically hyper. Aaron prided himself on having a relatively level head most of the time, but even he found it difficult to not be drawn in to all the minigames in a desperate attempt to win some fun prizes.

It was early afternoon, so both of them had plenty of time to see everything, but Heather seemed keen to move from one thing to another in a heartbeat. It took some coaxing from Aaron to keep her close, but she seemed to strangely appreciate him putting a metaphorical leash on her, considering the way she looked at him sometimes. They moved from minigame to minigame and it became clear that their interests were different: for the games that involved good hand eye co-ordination and a decent aim were ones that Aaron excelled at compared to his sister, to the point where he rather easily won a prize. Of course, it was only tradition that he didn't keep it to himself: when he was handed the stuffed bear, he passed it over to his sister and she squealed in delight. 

After a couple of hours of walking around, the twins were starting to run out of steam a little. The carnival had been nice and fun, but their young bodies could only be so energetic. Plus, they were starting to loop around and return to things they'd already seen. Aaron was considering broaching the subject of going home when his sister grabbed his hand, catching his attention. For a brief moment, time stood still as Aaron took in the sight of his sister in the bright sunlight, her arm tucked firmly beneath the stuffed bear she clutched dearly to her chest. For barely more than a second he was captivated by the sparkle in her eyes and the wide smile spread across her feline face. Time felt as if it returned to its normal speed when she turned her head and let go of his hand, pointing to the ferris wheel.

"Let's go up." She said, her tone making it sound like more of an order than a suggestion, and Aaron knew better to argue. They made their way over and waited in line, which was thankfully short. After handing a few coins over to the man at the front, the twins slipped into one of the seats and the bar was placed over them to keep them safe. They waited patiently as the wheel trundled forwards, stopped occasionally to let more people on. Aaron was glad to be sitting down-- his ankles were starting to hurt a little.

A quiet silence filled the void between the two of them, partly due to them enjoying the moment and partly due to Aaron's own anxiety. He wanted to talk about what happened between them, but he didn't quite know where to begin with it. He wanted to voice his concerns, but didn't want to upset his sister. There were so many variables to consider that it almost gave him a headache just thinking about it. As much as he wanted to push it to the back of his mind, it always resurfaced at the most inopportune times.

"It's nice, right?" Heather quietly remarked, leaning against Aaron slightly as their seat slowly rose towards the top, granting them a view of a sea of houses, and the landmark buildings of the city centre in the distance.

"Mm. I guess so." Aaron absently replied, acutely aware of her leaning on him. She sighed through her nose and her head brushed up against his own, a low and delicate purr vibrating through her body. Aaron nervously glanced at her out the corner of his eye.

"H-Heater, w--" Aaron began to speak, but he was cut off by a hand reaching out to touch his outermost cheek, forcing him to turn his head to face her. His eyes widened in surprise as her lips suddenly met his, sweeping them both into a delicate, forbidden kiss. All of Aaron's fears melted away, replaced by a hormonal need that surged through his body and towards his loins. It was typical of most pubescent boys to get so easily excitable, but Aaron found it utterly embarrassing, especially considering the person kissing him was his sister.

Their kiss lasted perhaps a little too long, though that was predominantly Heather's doing. Her lips continued to push against his, even as he pulled away from her, coming to his senses. Eventually, though, their lips did part. She opened her eyes and blinked at Aaron's worried expression. Her smile faded, replaced by a sad frown.

"What? Am I bad kisser?" She looked away and Aaron spluttered, attempting to find the words to explain himself.

"N-No, no! It's not that, it's just...Heather..." Aaron fidgeted his hands together and squirmed in his seat. "I just...I mean...I don't..."

"Jesus, Aaron." Heather giggled at his fumbling words and Aaron felt a degree of both frustration and embarrassment, but at least her laughter lightened the mood somewhat.

"Look," He forced himself to just come out and say it. "We're twins. Isn't it, like, wrong for us to kiss, and do all that stuff?"

"I dunno. I mean, maybe," Heather shrugged it off, glancing at him from the corner of her eye. "But doesn't it feel nice?"

"Well...yeah, sure, but...if anyone found out..."

"THen they won't find out. We can be careful about it," She insisted. "It just...feels nice with you. The boys at school are mean or weird or both. I don't think they care about what I'm doing and more about how I look. At least you know me."

She was right, Aaron couldn't deny that. He was a hormonal boy himself, coming into the beginnings of his teenage years, and a lot of other kids at school were going through the same sort of thing. He didn't have many friends at school, but that didn't mean he didn't have ears: he'd heard some of the other guys quietly whispering and giggling about 'tits and ass', commenting on a teacher's boobs or sharing pictures they'd managed to find online without their parents knowing. It was just a generally hormonal time, and Aaron couldn't blame Heather for having a more mature approach. Though she seemed a little airy and girly, she was smart-- smart enough to know what people's intentions were.

"Aaron," Heather murmured, leaning against him. "Your my brother, and I love you. Can't we just enjoy it a little? If you find a girl you like or if I find a boy I like, when we can stop. But until then, can't we just...you know?"

Heather could be remarkably convincing when she wanted to be. Her confirmation of stopping when their interests wane or change direction to other people was more or less the thing that he needed to know, but could never find to words to say without upsetting her. It was a relief that she came to that conclusion on her own and he visibly relaxed by extension, blowing a long sigh.

"Okay," He agreed, perhaps with still a little apprehension. "But if anyone finds out, we have to stop."

"Yeah, yeah...now, can we enjoy the moment? The city looks so pretty." She insisted, and Aaron groaned under his breath, keeping his mouth shut. She giggled in response and scooted a little closer in their shared seat, pressing her body up against his. 

They sat there in silence a little longer, their seat sitting at the very top of the ferris wheel. Aaron could feel the warmth of his sister's body against his own along with the vigorous pounding of her heart that made it clear she was just as nervous as he was. After a minute or so, Aaron felt her begin to move; at first, it was subtle, her hand trailing across his leg. Then she began to move it upwards, sliding her hand around his inner thigh and grazing it over the leg of his shorts, getting closer and closer to his crotch.

Aaron couldn't deny his pubescent body, so it was no surprise to him that he was achingly hard when Heather's hand finally reached his crotch, though the same couldn't be said for her. A soft gasp escaped her lips as Aaron's member, hidden within a layer of shorts and underwear, pulsed and throbbed underneath her palm. She gave it a firm squeeze, or as much of one as she could manage, and Aaron let out a quiet moan in response, trying not to be so loud. If anyone else on the ferris wheel heard them then they'd be in trouble.

Heather, however, was adventurous. Her hands moved up to the button of his shorts and she wrestled with it for a moment until she successfully managed to unbutton them, the fabric naturally parting to reveal Aaron's underwear beneath. Aaron attempted to let out some hushed protests, but he admittedly didn't even try to push her hand away as she reached into his underwear and pulled his little member free from his pants. His humanoid member twitched in the warm summer air and Aaron tensed nervously, hoping no-one could see what they were doing. Heather's feminine fingers curled around his 3 inch length and she began to pump her hand a little, leisurely stroking his cock and watching the way it throbbed in her hand.

Aaron couldn't help but quiet moan under his breath, doing his best to restrain it by keeping his mouth shut, his pleasure heard in low, quiet hums. Heather peeled back his foreskin and revealed the bead of pre-cum forming from the tip of his member, threatening to trickle down at any moment. The feline boy squirmed ever so slightly, but his eyes widened when he saw his sister bowing her head, moving it down his body towards his crotch. Felines are naturally dexterous so she was able to easily curl over the bar that sat firmly across their stomach. After a moment or two, her lips met with her twin brother's cock.

"H-Heather, you shouldn't...!" Aaron whispered, yet she continued regardless, pushing her head down and gently suckling on his cock as she held the base with one hand and clutched her large teddy bear with the other. Aaron's lips parted and he let out a shaky breath, his humanoid member throbbing wildly against her barbed tongue, feeling the gentle scrapes against his length that were both mildly uncomfortable as well as delightfully sensitive, sending sparks of pleasure up and down his spine. He wanted nothing more than to thrust up against her mouth, but the combined anxiety of their situation along with the bar that sat across his stomach made it all but impossible. Despite that, he reached out, stroking her blond hair as her tongue danced and tasted every inch of him.

He was about to speak, but the shuddering of the ferris wheel caught both his and Heather's attention. Slowly, it began to move, taking them backwards and back down to the bottom at a relatively slow pace. If Heather wasn't worried about beind caught before, she definitely was now-- there would be no justification for their lewd position if people found them like this once the seat reached the bottom. Heather quickly pulled her hand up and Aaron reached down to tuck his cock back into his pants and button himself up, making sure he was decent. The pair of them had flushed, embarrassed faces, but Heather couldn't help but giggle.

"We'll continue this later." She assured him, and Aaron had no doubt she was going to remain true to her word. Their seat slowly pivoted back down until it reached the bottom, where they were finally let go. At Aaron's suggestion, the two of them decided to head home, having spent the majority of what their father already gave them.

It was 3pm by the time they reached the house, and the rest of day was, for want of a better word, uneventful. They had lunch and Heather left again to see her friend for a while, coming back in the early evening to watch her favourite television program and have dinner. The three of them talked around the kitchen table for some time before they adjourned back to the living room, watching some more TV-- well, two of them did; Aaron spent his time on his 3DS whilst sitting on the couch. Heather thankfully kept her distance and reigned in her loving attitude around their dad so he didn't get suspicious.

Eventually, their father coaxed them up to bed, but it was arguably what both of them were waiting for. They got changed into their pyjamas, which were thin and a little revealing due to the warm weather, before the lights went out in the upper floor so they could see, with nothing but the slowly fading light outside to help them see. It was nearing 9pm, so the sun hadn't quite set yet, but it was getting there. Aaron sat in his bed and pursed his lips, hearing Heather quietly breathing above him.

For a moment, he thought he was going to get blue-balled, and that would have irritated him. Thankfully, after about 5 minutes of impatient waiting, Heather began to move. She slipped out of her bed as quiet as a mouse, her feet hitting the floor with barely a thud. She was easily visible in the light thanks to the summer, wearing nothing but a pair of small panties and a vest so she could remain as cool as possible. She glanced towards the door and tiptoed over, listening for any sounds outside the door. Aaron waited, watching her, until she eventually came towards the bed.

"Sorry. Had to make sure Dad went back downstairs," She whispered, climbing into the bed and towering over him with a wide and sly grin. "I said we'd continue later, so..."

"Can we, uh...try a different position, maybe?" Aaron suggested, making his sister briefly pause for a moment, eyebrows raised. She shifted off of him obediently and Aaron sat up, rolled over and getting onto his knees, scooting around the bed. He reached out to touch her, but only to the point of guiding her into an appropriate position. He guided her onto all fours on the bed, spreading her legs apart a little at the same time.

"Where'd you learn this?" She quizzically asked, letting out a brief groan when Aaron pushed his clothed crotch up against hers. The feline boy was simply testing the waters on whether the position would work, but since they were identical there was no issue in height difference. Satisfied, he pulled back again, reaching out to slowly push her vest up a little.

"Um...the internet." He replied awkwardly, hands trailing towards her sides, where he tucked his fingers into the waistband of her panties and slowly slid them down her legs. He could only really reach halfway down her upper legs, but it was more than enough to expose her delicate young pussy and her flat-ish cheeks. Aaron experimentally grasped her behind and spread her cheeks apart to admire her ass a little, momentarily curious about her tight little pucker, before he drew his attention further down to the soft mound that lay beneath. He slipped a hand further inwards and trailed it down until his digits grazed over her entrance, his fingers parting her lips slightly to feel the moist warmth within.

"Mm. Don't tease me." She complained, squirming against his touch. He withdrew his fingers, though not at her command-- he brought them to his lips and licked them, slathering them in spit before bringing them back to her pussy. He pushed, slipping a digit into her, and she gasped, her innards clamping around his finger and her body gently quaking. She let out something of a moan but struggled to keep it quiet. Aaron glanced nervously to the door before he pulled his finger back, pushing it into her again. Her response this time wasn't nearly as intense as before, but her insides still gently squeezed and she huffed through her nose a little.

"Oooh Aaron..." He voice trembled his name as he explored her with every inch of his finger, his loins already fully stirred and erect just from the warmth of her pussy around his digits and the situation before him. He slid his fingers in and out a couple more times, admiring the way Heather occasionally pushed backwards to slid into his digits, before he withdrew himself completely. He fingered her for two reasons: curiosity, and to get her nice and wet.

She didn't have to ask what he was doing, for it didn't take him long to drop his pyjamas shorts and reveal his little 3 inch cock. He sidled up to her and nudged the foreskinned tip against her entrance, peeling the skin back a little so that he could slide his sensitive, smooth head against her moist lips. She wiggled her ass back and forth invitingly and that was all the encouragement Aaron needed. He pushed any needless anxieties of their future to the back of his mind and focused on the moment, the sex. With a slow push, he slipped the head of his cock into her, sinking deeper and deeper.

It was as good as the first time, if not better. The warmth of her innards was intoxicating and Aaron couldn't resist pushing his hips forwards and hilting all of his cock into her, relishing the pulsing heat of her tunnel around his throbbing length. He relaxed there for a moment, the two of them breathing audibly, deeply, before he tugged back and began in on a series of slow, methodical thrusts. His hips slid back and forth and he didn't do much more than a couple of inches at a time, shuddering from the sensation of her warmth gliding along the head of his sensitive cock.

Her little tease earlier in the day had certainly made him a little pent up, to the point where he was tempted to go as hard and as fast as he could just to punish her, but he was more than satisfied with the sound of her quiet, approving groans coupled with the set, slick noises of their forbidden love. His hips slowly began to pick up speed, but he was careful not to go too fast-- not out of fear for her well-being, but out of fear of getting caught. Should he go too hard, he might rock the bed a little too fiercely and catch their dad's attention downstairs.

Aaron wanted to say something, anything, but the dirty talk embarrassed him and he was frankly too engrossed in the moment to come up with anything good. His quiet pants of pleasure soon turned into barely restrained laboured groans as his cock slid back and forth, their lewd sex growing wetter and wetter with each passing second. Aaron eventually leant over, curled a hand around her and propping himself up with the other as he thrust into her, nuzzling against her back, his balls swinging back and forth. He knew he couldn't hold out very long, and from the way Heather squeezed tightly against his cock, she was already done.

A few thrusts was all Aaron needed, and the sudden warmth of his climax washed over him. His pubescent body shuddered and trembled as he orgasmed in record time, barely 2 minutes into their love-making. Little spurts of seed shot into her tight crevice and Aaron desperately held onto her, his cock throbbed and pulsing with each turgid spurt. His knees ached and his body begged for rest, but he cradled her just a little moment longer, enjoying the delightful pleasure that trickled up his spine and swam around his body. He let out one long, final sigh and pulled back, fluids dripping from his sister's tight pussy, dropping into her panties.

Aaron visibly sagged and scooted to the side, flopping forwards onto his front and tiredly groaning, his body caked in sweat. Heather pushed her legs backward and did much of the same, rolling to the side and gently groaning with something akin to contentness. Aaron shuffled and curled up behind her, hooking an arm around her side and quietly spooning her in the bottom bunk.

"Mm...you're really good at that." She hummed, her eyes firmly closed, a smile spread across her face.

"How do you know?" He commented. "You've never been with anyone else."

"Mm. No, but...it was good." She murmured. Aaron quietly snorted and didn't press any further.

Tomorrow, he had a feeling he'd wake up without a care in the world.