"Heather, I think a storm's coming in. Don't you think we should go home or something?"

"Relax! It's ages away, it won't even be here until the late afternoon."

"But..."

"Can't you just enjoy the sun for a little while longer?"

Aaron grimaced, but he knew better than to argue with his twin sister, who seemed more or less content to lay on the blanket beneath her and soak up the sun a little while longer. Though Aaron would have liked to do the same, he was a little apprehensive about the dark clouds on the horizon that seemed to be getting closer and closer. Eventually, however, he sighed and leant back, resting on his elbows and crossed his stretched legs over one-another.

If anyone had compared the Aaron from one year ago to the Aaron now, who had come into his teenage years, they would have said he was an entirely different person-- and in a way, they'd be right. The past year that Aaron had spent with his twin sister, doing all sorts of taboo activities in all manner of shapes and sizes, had changed him, and potentially for the better. Gone were the days of him being meek, with low self-esteem and no friends. Now, he was strangely confident with himself and his body. He looked at himself in the mirror not 2 weeks ago and actually felt good about how he looked-- thin, but lacking in real muscles. He'd even started working out. Heather had given him the confidence to be himself, and perhaps more.

It wasn't without its hiccups, however. Though Aaron was loving the changes to himself, Heather secretly was not. It was no secret that Aaron had been getting a lot more attention from the opposite sex now that he felt more relaxed and spoke better in face-to-face conversations, and Aaron was oblivious to how it made Heather feel. One way or another he'd find out.

"I think I might go play in the water or go for a run or something." Aaron suggested, sitting up a little. As he moved to stand, however, Heather slapped a hand on his wrist, holding onto him.

"No, stay." She whined, and Aaron stared down at her for a moment, sighing through his nose. He relented and settled himself back down, looking up at the patchy blue sky above and then back across to the dark clouds beyond. He was sure they'd gotten closer, but he was also aware that if he brought it up then Heather would not appreciate it. He reached out behind him for the parasol stuffed into the sand and adjusted it slightly to give him some more shade, before he leant back, putting his arms behind his head and enjoying the lack of the sun on his now closed eyelids.

He felt a hand brush up against his side, grazing along his swim shorts and up towards his stomach. He knew it was Heather, and though he had an inkling of what she was up to, he kept himself calmly still. When her hand dipped a little lower, however, he began to shift, reaching down to gently guide her hand away. He could feel her resisting him a little but he was now slightly stronger than her if he put some effort in. She eventually stopped and the sharp sigh that escaped her nose made it clear she was annoyed.

"C'mon Heather," Aaron grunted, turning his head towards her and gesturing out to the various other beach-goers, of which there were a few. "Do you think now is the best time?"

"I was just teasing you..." She grumbled, looking down at her chest and avering her gaze from his. Were he the same Aaron from a year ago he might have let her do as she pleased, but he had a little more self awareness now. 

His eyes briefly travelled down her body and his hormonal urges stirred inside him. God knows how she got away with wearing a two-piece swim suit to the beach, or how their dad let her wear it, yet here she was. She shouldn't be revealing so much of herself at 13. Aaron's body tingled and he looked away, aware that if he kept his eyes on her any longer his body would do more than just tingle. Now was not the time for an erection.

Just as he was about to settle down once more, an approaching group caught his eye: 3 girls, to be exact, were heading straight towards them. There was no doubt about where they were going, for when Aaron turned his head towards them, they waved in his direction. He resisted the urge to look behind him-- the old him would have been laughed at for doing so.

"Hey." The one in the middle spoke whilst the other two kept silent, standing a little behind her. Aaron could recognise that she was the most charismatic of their group-- or perhaps she was the most interested, given her fidgeting hands and shy grin. She was a slenderly built canine, roughly around their age, with locks of beautiful golden hair, but wore a more modest swimsuit compared to Aaron's sister.

"Hi there." Aaron leant back and relaxed somewhat, his feline snout curling into a small smile. It must have been charming, because the two girls behind the canine began to giggle to each other.

"We, um, were going to play some volleyball for a while before the storm rolls in...but we're one person short," She began shifting on her feet a little as her smile grew wider and wider. "Do you want to join us?"

"I--" Aaron was about to speak, but a hand on his chest forced him to stop. Heather sat up rather quickly and glared over at the girls as if they had just said something incredibly insulting.

"He doesn't want to." Heather curtly insisted and the three girls anxiously exchanged glanced with one-another before awkwardly taking a step back. The middle girl gave Aaron something of an apprehensive wave before quickly walking off with her hands, picking up the pace as if they didn't want to be near them anymore. Heather sighed beside him and flopped herself down onto her back and Aaron quietly fumed.

This was becoming a problem. When they had first explored one-another as Heather's fervent request, it had been out of a morbid curiosity for the both of them-- well, it was more like Heather guilt him into it, but regardless he enjoyed it. He thought it was something of a mutual agreement between to two of them, from what Heather said at the time, that they'd stop when they were interested in other people. 

He was beginning to realise that this rule only really applied to Heather and not to him: she was awkwardly possessive and she had scared away more than one girl that Aaron had been interested in pursuing over the past couple of months. Any time someone flirted with him, Heather would shut them down. Aaron could only take so much of her annoying traits before it became too much for him.

"Where're you going?" Heather sounded surprised as Aaron suddenly rose to his feet, and she reached out to grab his hand in an attempt to coax him to sit back down. She gasped, however, when Aaron tugged his hand from her grip, casting her a glance over his shoulder.

"I'm going for a swim." His tone wasn't fierce, but even he could feel the quiver in his tone. What he should have felt was a nagging annoyance, as he often did when Heather pulled stunts like this. Instead, he felt something more-- a quivering, shaking anger and frustration that had built up over the last 3 to 4 months. He strode away from her, drowning out her words as she called for him to come back. 

As he reached the end of the shore and stepped into the warm ocean waters, he heard the heavy footprints of someone staggering through the sand after him.

"Aaron, wa--" Heather had begun to speak, but Aaron launched himself forwards and dove under the water, wanting to drown her out. If anything, he needed to be away from her right now: they shared a room, had regular sex, and she went everywhere with him. She was always around too much and he rarely got much privacy or along time anymore-- it was suffocating.

He got the enjoy the effects of the warm water and the drowned out noise of the breach above before a hand curled around the fur on his head and dragged him up to the surface, causing him to struggle. When his head breached the surface, he took in a large breath and whipped himself around, wrenching the hand from his head. He was greeted to the sight of an apprehensive and flustered Heather, who's hard stare made it clear she was annoying, but her trembling hands betrayed her nerves.

"Jesus, Heather, can't you leave me alone?" Aaron exclaimed, reaching up to rub his head, where her pulling had hurt him. 

"Y...You ran off...I was worried." She eventually let her words out and he glared over at her, his frustration getting the better of him.

"Yeah, because for what feels like the hundredth time, you scared off another girl," He spat out, involuntarily hissing a little. "Do you just want me to never have a girlfriend? Is that your plan? To make my life suck?"

"No, I just...she wasn't good enough for you anyway," Heather brushed it off, clearly bristling from his hostile tone. "Besides, you have me..."

"You're my sister!" Aaron exclaimed, then quickly hushed his tone as he strode towards the shore so that he didn't have to paddle to keep himself afloat. "Did it ever occur you to that what we're doing is wrong? I thought it was only meant to be temporary!"

"W-What are you saying? That you hate me?!" Heather raised her voice and Aaron growled his frustration.

"No! Do you think I would get in the way if a boy was interested in you?" He gestured at her and she hesitated.

"Well..." She cast her gaze down. "I hope you would..."

"Why would I do that?" Aaron shot back at her. "That was our entire agreement. We'd stop when we get interested in other people. Don't you want that? I want that."

She raised her head to look at him and Aaron was momentarily taken aback by her teary-eyed expression. She turned from him and strode back towards the shore and he watched her go, not chasing after her. He had perhaps said some things he didn't mean, but part of it was how he felt. Even a year after they started hooking up regularly, his thoughts were often plagued by the taboo of their relationship-- incest was frowned upon for a reason, and he feared social backlash for it, especially now that he was feeling more confident and getting more popular, both in and out of school.

Aaron turned from the macabre scene to stare up at the sullen clouds overhead, aware they were getting closer and closer. Most of the people at the beach had already packed up and left, leaving just a few people still lingering around, including Aaron and his twin sister. 13 was a little too young to be contemplating his future, yet here Aaron was, staring out over the waves and watching the way they lapped and sloshed towards the shore in small, periodic waves.

When Aaron eventually turned around, expecting to see his sister where they had sat mere minutes ago, she was nowhere to be seen. A surge of worry struck through Aaron's body in that moment and he glanced across the rest of the slowly emptying shore, where only a few people could be seen. He couldn't see Heather anywhere-- she would have been easy to spot in her two piece swimsuit. He was sure she could take care of herself, but this beach was nowhere near home. They'd taken a bus to get here and they only ever visited in the summer; if she'd left the beach entirely and gone elsewhere then he feared for her safety. She wasn't level-headed when she was emotional, and Aaron knew the dangers of strangers from school.

Aaron strode out of the shallow water and onto the shore, briskly making his way back towards the blanket that they'd sat out on the sand and the backpack that sat next to it. He quickly folded the blanket it, giving it a quick shake to remove any sand before stuffing it into the pack and slinging it over his shoulder, their clothes stuffed down at the bottom. The parasol didn't belong to them so he left it where it was and made his way to the stairs that lead up to an railed path overlooking the sea. He peered down the long path to see a handful of people sitting on benches still enjoying what little sunlight was left, but the people in the distance were too small to make out. With no clues and nowhere to turn, Aaron decided he'd take off in that direction: it was the way to the bus stop, so he hoped she was just waiting on a bus.

He walked for what felt like minutes, the feeling of dread inside him growing and growing the longer he was apart from his sister. It gnawed at him, the worry that she was somewhere else, alone...and that anyone could find her. He hoped Heather knew better than to take the advice of a stranger but he also wouldn't put it past her to accept their help out of some weird spite. He eventually stopped to rest and stared out at the sea, shifting uncomfortably on the spot. 

"Are you alright, young man?"

The voice of an clearly aged fellow caught Aaron's attention, and he turned his head towards the source of the noise. There, sitting on a bench overlooking the sea and dark clouds beyond sat an elderly couple, two possums to be exact. Whilst the woman of the duo offered Aaron a wrinkled smile, her husband looked more concerned than anything else. He must have noticed the distress on Aaron's face. The ginger feline shifted awkwardly on the spot and then slowly approached, hands fidgeting. He was normally confident in these situations, but his sister had got him all worked up. Old habits die hard.

"I, uh...have you seen a girl come by here? She looks like me, but, well...you know." Aaron anxiously asked them and the man relaxed a little, his muzzle stretching into a grin.

"Got a fierce temper, has she?" He equipped and Aaron couldn't help but grin in response, a little relieved.

"Yeah."

"She went in that direction," The possum jabbed a thumb down the path. "I saw her go down the steps along the way to the other end of the beach. I think there's an old beach house out there...the surfers use it for storage, it's probably unlocked."

"A beach house...you seem to know a lot." Aaron was a little surprised and the possum grinned even wider, affirming his arm around his wife's shoulder.

"We grew up here, us old folks. We know everything that goes on around here. You'd best catch up to her, alright?"

"I will. Thanks, mister." Aaron gave them a little wave in farewell and felt himself physically relax, his muscled loosening from their hard, nervous tension. At least he had an idea of where his sister was now. 

Following their instruction, he made his way further down the path until he came across a series of rocks that covered up one section of the beach, effectively blocking it off halfway along. When he passed by the rocks, he found himself on another side of the beach with a set of stairs going down and, sure enough, a small run-down beach house sitting up against the wall, staring out at the sea. He can only assume that's where Heather was. He descended and made his way over, feeling his heart begin to quicken. Where should he even begin?

Aaron stood by the beach house door underneath an overhang. There was no window he could look through, so he'd have to knock and let himself inside. Just as he was about to do so, his ears perked up at the sound of light pattering. He glanced over his shoulder and grimaced at the sign of falling rain, light at first, hitting the overhang above him and the sand along the beach. As he had already said, a storm was coming. The clouds had hit him quicker than he'd expected.

Sooner or later he'd have to knock on the door, so he bit the bullet and did so, rapping on the surface with his knuckles. For a moment, he heard nothing but an eerie silence, accentuated by the quiet sounds of the rain behind him. Eventually, however, his sensitive ears picked up a muffled sound, and he took it as an invitation to step inside. He twisted the handle and the door teetered open.

As the old man had suspected, and much to Aaron's relief, Heather was sitting within the beach house, wedged between some surfer boards and other swimming equipment. She looked upset enough to be bundled up into a tight ball, her knees pressed to her chest, but she still raised her head when he entered the tiny room and then glared at him when their gaze met. Aaron glanced away for a moment as he attempted to find the best words to calm her down, placing the bag by the door.

"What do you want?" She spoke before he could even get a word out and Aaron's muzzle dipped into a frown.

"I...Are you okay?" He asked the only thing that came to his mind and she didn't answer for what felt like an uncomfortable length of time.

"No." She said it rather matter-of-factly, but the twist of her tone made her seem pouty and childish.

"Do you want to talk about it, maybe?" He suggested and she shifted on her little wedged set.

"Did you really mean it?" She asked him. "When you said you were going to stop when you were interested in other girls?"

"...Yes?" He replied and she seemed to look more upset by that revelation. "I don't understand, Heather. Wasn't that the plan all along? We were just...experimenting or trying it out for when we get girlfriends and boyfriends and stuff?"

She didn't answer him and Aaron grew exasperated. This wasn't the first time she had closed up when they got into a heated argument, particularly if that argument upset her for one reason or another. When she got like this, it was hard to get much out of her. Aaron moved to lean up against one of the neatly packed boxes of swimsuit equipment and hoisted himself up so that he could sit on it, the lid keeping him from sinking inside.

"Heather, talk to me, please..." Aaron groaned in frustration. "I want to help but you won't tell me why you're upset!"

"...What if..." She began tentatively. "I said that I wanted to change our agreement?"

"How so?" Aaron didn't know what her line of thinking was, but it seemed like questioning her about it was the only way to get to the bottom of things.

"Well..." She trailed off again as if she didn't know what to say, but the way she fidgeted made it seem more like she was scared of his reaction. "What if I just wanted it to be us two...like, for a long time?"

"Like what, dating?" Aaron lowered his gaze. "Heather, you know it's wrong. I know it's wrong, too, but we're doing it anyway. If dad or anyone else ever found out, I think we'd be in a lot of trouble..."

"I know!" She exclaimed rather abruptly, before wrapping her hands around her knees. "I know, but I...I can't help how I feel."

"And...what is it that you feel, exactly?" Aaron pressed, beginning to feel his skin tingle. Part of him already knew the answer.

"I...I love you, Aaron." Heather couldn't even look him in the eyes when she said it, keeping her head down, her tone meek and small.

"I mean...I love you too. You're my sister, it's kind of a given." Aaron did what he does best, and attempted to brush it off. Beneath his fidgety surface however, his heart pounded in his chest like a jack-hammer and his stomach turned over multiple times in quick succession.

"No, not like that," Heather corrected him, sounding quieter and quieter as she went on. "More than that. More than a sibling. I'm in love with you, Aaron."

A silence feel between them, so eerie and still that they could have heard a pin drop. Nothing but the dull sound of the rain, growing heavier and heavier with each passing minute, filled the quiet between them. Heather kept her head down and looked at her hands and Aaron breathed rather sharply. His body felt hot and his head felt light, for reasons that he couldn't, or perhaps didn't want to explain. 

"...Aren't you going to say anything?" Heather was beginning to sound more and more upset the more they talked. She slowly began to rise to her feet, making her way towards him as Aaron sat, still as a statue, looking down at his hands. She hesitated when she got close and then doubled down, closing the distance between them and stepping between his legs. Aaron didn't even look up at her until she reached down and clasped his hands with her own.

"You got mad at me for not talking to you," Heather sniffed, reaching up to wipe her teary eyes before steeling herself. "Now it's your turn to talk to me. I want to be with you, but...do you want to be with me?"

"W...We can't. We shouldn't," Aaron shook his head and cast his gaze down. "I don't want to get in trouble."

"But do you love me?" Heather's voice was barely above a whisper and Aaron stared down at their hands, unfurling his from each other so that he could properly grab her feline hands with his own. 

"I...I do." Aaron admitted it, for the time time in the past year they'd been 'together', of a sort. He didn't want to reveal it to her because he knew the very nature of their relationship was wrong. He didn't want to potentially ruin his or her life-- he was certain that, should their relationship come out, Heather would be taken away from him until she was older. Their bond would break.

Yet, even with the reality of their situation bearing down upon his shoulders, the one thing that pierced through it all was the warmth of her hands in his own. He raised his head to stare deep into her blue eyes and she smiled, the fondness brightening up her face. Neither of them had to speak; their affection did all the talking for them. They leant forwards together and their muzzles met in a tender, sweet kiss-- the first act of true, unbridled love with each other, not bound by moral implications. In that moment, their relation didn't matter, only their unrequited love.

Aaron slipped from his seat on the box and pulled Heather closed to him, until their bodies touched. His hands snaked along her back towards her hips and he clutched to her as their kiss deepened. He felt Heather's hands stroking through his fur atop his head, snaking down to the side of his neck and around the back as Aaron slowly but surely adjusted their bodies, turning the pair of them around so that his twin sister had her back up to the box he was sitting on mere moments ago. She seemed to have an inkling as to what he was going to do, and as Aaron reached down to her thighs, Heather snapped her hands back to the edge of the box behind her, pushing herself up until she sat where her twin was before.

With that, Aaron moved in closer, slipping himself into the gap between her legs and strengthening his kiss against her lips. Their hands roamed as the desire within them flared and prickled, forming a light tingling sensation on their skin as their senses grew more aware of each other. They felt each bristle of fur, heard each gasp of breath and tasted each other's mouths. It didn't take long for Aaron's hands to snake up towards her swim top, which was more like a bikini, reaching around the back to fumble with the clasp. It fell away under his fingers and slipped down her shoulders, and his chest felt the warmth of her bare, small blossoming breasts.

Part of him wanting to grasp the heat of her chest and squeeze, but his hands were more interested in the shape of her back and the curve of her spine, and most of his focus was split between the delightful sensation of their fervent kissing as well as her hands pushing down his swim shorts. It was no surprise to either of them when Aaron's erection bounced free from the waistband of his swimming trunks and prodded teasingly against the fabric of her swimming panties, and her hitched breath made it clear she was as much into this as he was. He could feel her legs hooking around his waist, tugging him in and deliberately pushing his cock against her covered mound. Her throat vibrated with a delicate moan and his hands squeezed around her sides, his cock throbbing eagerly from the sound.

"Put it in." Heather huskily demanded, parting her lips from his to utter those sultry words as Aaron angled his head to roam down against her neck, something he had seen in movies on a number of occasions that he had come to enjoy doing-- and Heather seemed to like it as well, given her gentle quivering against his body. If he had been the same person he was a year ago, the thought of being so bold wouldn't have crossed his mind and Heather would have been doing most of the work. Now, however, he fully intended to take her his way, and she let him, enamoured by his forwardness. At her passionate demand, Aaron reached down and clumsily hooked his fingers along her inner thigh until his digits snuck in underneath the panties from the leg hole. He shoved the fabric to the side and slid his hips back, the head of his cock kissing with her moist lips. He pushed, and effortlessly slid into her.

It was like fitting a key into a lock, and their pairing brought them both a deep, carnal pleasure that manifested in the form of a relieved groan. They snugly pressed to one-another as Aaron withdrew his hand from between them so they could be pressed, fur to fur, skin to skin, and fully enjoy the warmth of each other's bodies amidst their sex. Aaron's hips gyrated and kneaded against her as his cock massaged her insides, causing her to tremble against his assertive form, clutching to him desperately. Sure, they'd fucked quite a number of times before, but this was different-- it felt entirely new.

Aaron needed nothing more but to rock and press against her, the tight squeezing of her inner passage and his own gentle grinding more than enough to satisfy him: and the sensation of the entire length of his cock inside of her seemed to make Heather want it even more, for she squeezed her legs around his sides and pulled him in close, pressing her own lips to his neck as he did to hers. The air became heavy with the sounds and scents of their sex, their moans accentuated by the quiet, moist squishing of Aaron's cock slipping every so slightly in and out of his sister's entrance.

"Mmh, Aaron..." Heather groaned his name as her twin brother picked up the pace, moving his hips a little faster as the rush of rain outside all but quietened their lewd sounds to anyone outside-- though no-one was nearby anyway. Aaron groaned in response to his sisters voice and moved his head up, dragging his muzzle across her cheek until she instinctively turned her head to face him. They stared into each other's eyes and wordlessly kissed again, locked in the throes of passion as all their worries melted away.

They moaned against each others lips as their pleasure intensified and their fervency blossomed. Though Heather wanted to keep him as close as possible, Aaron couldn't resist tugging himself back a little more, just so he could feel the warm wetness of his sister's innards sliding against the head of his cock as he pulled back, only for him to plunge forwards again with a satisfied groan. He steadily thrust back and forth as Heather squirmed and clung to him, the wet slaps of their coupling bouncing around the dingy little shack. Every other thrust was accompanied by a boyish grunt, followed by a short and distinctly feminine gasp.

"I'm so close..." Aaron parted his lips to speak and Heather groaned, grasping at the back of his neck as she peppered kisses all over his cheek.

"Already?" She whined, half-teasing, half-annoyed. Aaron grumbled under his breath and thrust his hips forward a little more fiercely than he could have liked, causing Heather to grunt. She didn't make note of it and so Aaron continued, picking up the pace ever so slightly as his hips bucked firmly and harshly against her body, his breathing growing laboured as his chest heaved.

Aaron's warning came in the form of breathy moans as Heather leant back to admire his pistoning form, allowing the billowing winds that seeped in through the cracks of the shack to waft between their warm, slightly sweaty bodies. Aaron stared down at the sight of his cock sliding back and forth as he reached down with his hand, trailing his thumb across her pelvis until he firmly pressed just above where his member was penetrating her. Heather let out a rather surprised gasp and rolled her head back, and Aaron grinned to himself. He had happened upon this spot of hers a month or so ago after some tutoring from her. She loved it when he played with it, and so he did just that, as he felt himself teetering over that inevitable edge.

"Oh god, Aaron!" Heather cried out, her body spasming and her toes curling with delight as Aaron meandered his thumb around that sensitive spot, which he knew to be the clitoris, as he plunged himself as deep as he could go. The rhythmic squeezing of her insides encouraged his member more and more as his body trembled, until a shaky sigh escaped his lips as his orgasm swept over him. Thick strings of cum shot from the end of his cock deep into her inner walls, coating the insides with a delightfully thin film of seed. He basked in the pleasure of it all for a moment as his thumb continued to swirl, driving his sister wild. Heather squirmed and groaned, but her breathing with low and heavy and her eyelids were drooped. He was fairly certain she'd already climaxed, but she hadn't told him to stop yet.

His hand trailed up her body as the other thumbed and massaged her clit, his digits exploring her stomach and up to her budding breasts. He clasped one against his palm and trailed a thumb over the nub of her perky nipple, causing the 13 year old girl to quiver and tense, straightening her head up to stare at him, before looking down to his hand.

"Mmh...we should stop." She reached up to stroke the back of his hand, before guiding it from her chest. Aaron's thumb eased up on her pelvis and he frowned, settling his hands back by her hips.

"Are you sure? I didn't kill the mood, did I?" Aaron grimaced and Heather leant forwards, tugging him in so she could plant a sweet, affectionate kiss on his lips.

"No," She assured him, reaching down to squeeze his backside, much to his surprise, before she ushered him backwards. "I just...I feel weird about my boobs. And, the storm's getting bad...so we should go home, before Dad starts to worry."

"...You're right, I guess." Aaron stepped backwards and bent down to tug up his swim shorts, fitting them snugly back around his waist. The inside of the shorts would mask his cum-soaked cock for now, but his sister might struggle. He watched her for a moment as she bent down to pick up her bra and hook it back on, and as she turned away from him and glanced at him from over her shoulder, he knew she required assistance. He stepped forwards to clip it back up at the back, before sliding his hands around her waist.

"...For the record though, I like your boobs." Aaron muttered quietly and Heather glanced at him again, before she began to giggle.

"Yeah? Well, maybe I can show them off a little more..." Her cheeks were flushed by his compliment, but Aaron had a feeling it was more to do with how bold he was with that statement, more than anything else.

"Do you like that?" Aaron asked, still holding onto her rather tightly. "When I just say how I feel? Like...uh, direct? Forward?"

"...Yeah. I do," She lowered her gaze to his hands, watching them stroke her stomach and casually wander. "I don't know why, but seeing you take the lead feels good."

"Oh really?" Aaron grinned, curling his hands towards her sides and stroking along her feminine hips. "How about a quick round 2, then?"

"So soon? Are you good to go already?" Heather teased, but her breath was once again shaky as Aaron's thumbs hooked her panties and pushed them down to fully expose her more intimate parts. He had pulled up his pants mere moments ago, but her teasing combined with the warmth of his body had encouraged his crotch to revitalise itself, and the tenting in his shorts was already probing her cheeks.

"For you, I'm always ready." Aaron purred, snaking a hand along her front and dipping his fingers between her legs. She groaned as his digits touched with her entrance once again and he felt the gooey remains of his climax on his fingertips. He swirled his digits around a little as he reached his other hand back, pushing his pants down once again and allowing them to effortlessly fall to his ankles. His cock eagerly throbbed, ready for more.

Taking the initiative as she so desperately craved, Aaron pushed her torso forwards, encouraging her to leant over and rest her elbows against the box she had been sitting on before. Heather instinctively spread her legs a little to allow Aaron's fingers to roam a bit, before he withdrew them and pressed both palms to Heather's ass, one on each cheek. He squeezed and spread them, admiring her stretched asshole and by extension her pussy beneath, a single bead of cum dripping from her used orifice. Aaron pushed his hips forward and let his cock snugly prod her entrance, smearing up and down her cum-coated lips, mixed with the film of his own nut covering his cock. He dragged it up towards her behind and smeared a trail of seed between her cheeks, causing her to quiver.

"You're not serious, are you?" Her voice shook a little from nerves and Aaron giggled, dragging his member back down.

"No, I'm teasing you." He assured her-- though he was taking the lead, he didn't want to actually do something she wasn't comfortable with. He pushed his hips forward again and his cock pressed firmly to her moist entrance, threatening to penetrate her any moment-- but his thrust was dampened by her sudden movement. She scurried forwards and pressed the length of her bare stomach to the box in front of her, and Aaron shuffled to join her. He cocked an eyebrow, but assumed she just wanted to get more comfortable.

"Here it comes." He briefly warned, before pushing forwards. His cock effortlessly slipped into her once he applied enough pressure, the slightly looseness of her recently fucked hole combined with the fluids that still coated her insides making it rather easy. He shuddered from the warm and delightful sensation of his cock inside her, though this was nothing new-- after all, he'd fucked her only moments ago. Still, it was hard to top that delightful, tingling pleasure that crept up his spine whenever he felt Heather's innards squeeze around his length.

Cocking one leg up, Aaron planted his foot against the lip of a box that sat lower down, but next to where Heather was leant over. The strange exoticness of the position spurred Aaron into a series of hard, yet steady thrusts, his balls slapping against and around her wet entrance. Every other thrust made Heather huff and moan, and the combined sounds of their forbidden love all but drowned out the noise of the roaring rain from outside. In that moment, all that mattered was each other.

"F-Fuck me..." Heather muttered quietly, almost as if she were begging for more. Aaron groaned quietly under his breath at her words, feeling a spike of pleasure shoot up his spine. There was something about the way she said it that had really got him going. He picked up the pace and she pushed her behind back against his cock, tail flicking to and fro. She was getting quite into it.

"Harder!" She cried out, and though Aaron knew he was meant to be taking the reigns, it would be unbecoming of him not to agree to her request. He pulled back and began to pound into her with a little more passionate ferocity, mindful of how hard he was thrusting and how she was reacting. Her moans grew heavier and heavier as the sounds of their sex grew heavier, and Aaron gritted his teeth, having a hard time holding on.

Heather's moans seemed to reach a peak, from what he could tell: they became loud and laced with desire and fervent passion, and Aaron was glad they were mostly in the middle of nowhere-- if anyone heard them it would be embarrassing. He joined his groans with her own, his young balls swinging back and forth and slapping with her wet orifice. He could feel her squeezing harder and harder around him, quivering and spasming as his cock slammed back and forth.

Suddenly, Heather gasped and her body relaxed, though her insides didn't. Aaron could feel her clamping down tighter than before and he was forced to put in a little extra effort in order to hump back and forth at the same speed as before. His twin sister squirmed and mewled quietly against the box, wiggling her ass back and forth as Aaron continued to plunge. He knew this sensation and her reaction all too well, and his heart swelled at the thought that he had made her orgasm a second time.

She wasn't the only one who was going to be done soon either. Though Aaron had boasted about his stamina and refractory period, he couldn't deny that he was often quick to cum when they had sex, and this time was no exception. Barely a handful of minutes into his hard thrusts, he could already feel himself reaching a second orgasm, and his sister's squeezing innards didn't help. He could feel the knot within him growing heavier and heavier the more he thrust, until it turned into that familiar sensation of tension that was almost unbearable, but felt so deliciously intoxicating.

"H-Heather..." Aaron groaned her name as he plunged forwards, curling his toes against the wooden box as his balls tucked up firmly against his taint. They flexed as his cock throbbed, spurting yet another creamy load inside of his twin's insides, adding to the already decent amount that was within her. Heather hummed her approval and pushed her ass back against his cock, making sure it was as deep within her as it could go. Aaron's hands stroked her backside, squeezing her cheeks and hips as he smiled to himself, bliss coursing through his veins. That lovely feeling of his orgasm faded as quickly as it had arrived and he was left with a sense of longing and desire thanks to his pubescent hormones.

Clearing his throat, Aaron retreated and pulled back from her, briefly admiring her used pussy before looking away-- as hot as it was, he didn't know if he had the strength for a round 3. He hooked his foot back and wobbled on his feet a little as he pulled his shorts up.

"Wow...I think 2's my limit." Aaron mumbled as Heather turned her upper body slightly to watch him getting dressed, smiling to herself. Her eyes twinkled with a fondness that he couldn't see as she slowly sat up, her own legs trembling a little as he crouched down to pick up her panties, being deliberately provocative as she did so. Her display didn't go unnoticed, but Aaron also didn't comment on it.

"That's a shame," She remarked aloud, tugging the panties up to flit snugly around her wet lips. "Because that was really good."

"Then I'll have to do it more often," Aaron mused, stepping towards the shack door and scooping up his backpack, taking in a deep breath to recuperate himself. "Shall we go, before it gets any worse?"

Heather hummed her approval as Aaron hooked the pack over his shoulder. It would have been useful to use the towel or a coat considering the heavy rain outside, but the harsh winds would likely blow them away-- they'd just have to make a break for it. Slowly, Aaron reached out his hand towards her as he eased the shack's door open, and he was momentarily buffeted by the onslaught of rain and wind. He turned his head towards Heather with a grin, and found her stunned; she was enthralled by the sight of him, his toned figure and wide smile accentuated by the backdrop of harsh rain and billowing fur. She was in love.

Nothing could hold them back now. Where they were going, there was no room for second guessing, no opportunity to consider the consequences. As she took his hand, she took a leap into the next chapter of her life. Would it bring pain and sorrow, or joy beyond comprehension?

Only time will tell.