“A-aiden?”

	The male fosky paused his game and turned from the tv screen to look at his little sister, Lily, who who called to him from the doorway. She was donning her usual evening outfit of a soft, slightly oversized shirt and a pair of shorts; both of which he’d given her after he’d grown out of them.

	“Hey Lil, what’s up?” He asked hurriedly. 

	He’d called her “Lil” since they were both kids, both as an affectionate nickname and a playful jab at her small size. He was only four years older than she was, but his brotherly sense of elder superiority permeated his attitude towards her, much like most siblings, and often culminated in these sort of jabs. Lily often found some of these jabs charming, but mostly annoying. However, like a large majority of thirteen-year-olds, she found most things annoying.

	“Are you busy?” Lily asked shakily. 

	Aiden noticed her breath was slightly faster than usual. Deeper, too. Almost like she’d just climbed a flight of stairs by skipping every other step. Briefly, he glanced at the TV, momentarily considering telling her to go away so he could return to the game he’d been intently focused on for the last few hours; he was close to finally getting past a part he’d been stuck on for awhile. But, she seemed like she needed something, and he decided otherwise. 

	“Nah, I should take a break, honestly. You alright?” He returned, taking off his headphones and turning back towards her.

	“Yeah… D-do you want to watch a movie?” Lily took a small step into his room. She almost seemed nervous.

	“I mean… sure, haha.” Aiden raised an eyebrow at her. She was definitely acting a little off. He figured maybe she was stressed about school and was looking to distract herself. She had a tendency to worry herself sick about things like that; she was an overachiever and often stressed about her grades despite a vigilant dedication to studying. Still… she didn’t usually act like this. Even with an impending test looming over her.

	“You, uh… wanna watch anything specific?” he followed up, a small of uncertainty in his voice. 

	He stood up and pulled his “movie laptop”, as he called it, off of the desk. It contained a few hundred gigabytes of films from a wide assortment of genres and was often his staple to curb his occasional bouts of insomnia. Lily shook her head and stepped fully into his room, closing Aiden’s door behind her. He found this odd, too. Aiden then turned and looked down at his younger sister, waiting for a response; his five ten frame towering over her respective four eleven.

	“No… Well, uhhaa…” The pause between her request had a noticeably airy quality to it,  “…Maybe something funny?” Lily requested softly, moving meekly towards him with a flustered, nervous expression. Aiden cocked his eyebrow at her.

	“Heh. Ok, strange child. I got you.” He chuckled and patted the side of his bed, inviting her to hop up and get comfy. She obliged and climbed up onto the queen mattress he often bragged about, immediately wrapping herself in his large, puffy duvet. Only her bushy tail, a testament to both her fox and husky genes in its color as well as volume, stuck out from underneath. Aiden watched this with an entertained smirk on his face, thinking about what he could say after he picked something to watch to effectively make fun of her. He made a selection and opened the file, then settled the laptop down on the bed next to his sister before doing the same himself. 

	“Ya know, if I didn’t know any better I’d say you were…” His words were cut off as the young girl next to him wrapped her arms around him tightly, an embrace he wasn’t use to coming from her. Aiden immediately noticed how distinctly warm she was.

	“God, Lil” he complained, “You’re like a fucking oven.” Instinctively, he went pull her arms off of him before he noticed that she was doing what he thought was crying. He felt a small pang of guilt and put his lanky arm around her in a silent understanding. His hand softly rubbed her shoulder, and she pulled her body closer to his, placing a leg over him in a complete embrace. He turned his attention away from the laptop. He was concerned.

	“Lil. Hey.” He said, shaking her lightly. “What’s the matter?” 

	She didn’t respond and only clutched him tighter, breathing deeply into his side. He grew even more concerned, and watched his sister closely. Slowly, he realized what he thought were soft sobs were actually deep breaths, and that he felt no tears on his side where her face was. It was then that he noticed her odd scent, much different from the one he was used to, and that she was, in fact, not crying at all. He also, at that same moment, realized that her tiny hips had begun gently moving against him, with a subtle, gentle desperation. He then thought back to what he had said earlier about how warm she was. 
 
	It suddenly dawned on Aiden why his little sister had been acting so strange.

	Lily was going through her first heat.

	Aiden laid still, soaking in the contrasting ambience of sound effects coming from the laptop in front of him, and the soft gasps coming from beside him. He tried to remember what he had learned about this at school, recalling the warnings that first heats were often so intense that the desire to mate had an uninhibited nature, and encouraged isolation from all males, family members included. Pictures of disfigured, inbred cubs flashed into his mind, the same ones they had shown during sex-ed to dissuade familial relations during these intense cycles. Yet, despite this, he felt his normally loose basketball shorts begin to tighten, and the pangs of guilt returned. Only, this time for completely different reasons. 

	“Lil. Lily…” He pulled himself away from the small fosky girl, chuckling nervously, and knelt next to her. “You’re all good, you just need to go back to your room and relax or go ask mom how to deal with…” his voice trailed off as he turned and met her gaze.

	“Aiden… Please… I just… ” she said between her soft gasps, the fire burning within her weighing down on each breath, “I just… I need…”

	Aiden looked upon his young sibling, unable to avert his gaze. She looked back at him with a warm desperation; her pleading, deep breaths overpowering the sounds emanating from the screen. The scent he noticed earlier had become stronger, more intoxicating, and he found himself unable to stop his eyes from looking down upon her petite body as it shivered with anticipation. She reached out and gently put her paws on his sides, fueling a desire that was quickly rising within him. He gently let himself come back towards the quivering girl, easing his body down on top of hers. Aiden stared deeply into Lily’s ocean blue eyes. Her innocent beauty overpowered the teenage canine, and he touched his snout to hers. He pulled back quickly, briefly snapping out the spell he was finding more and more difficult to fight.

	“Oh, god. Lil. I’m so sorry…” The apology spilled out from him with great guilt,  “I don’t know what the fuck I was think…” He was interrupted by Lily wrapping her arms tighter around him and pulling him back into the kiss. Briefly, he resisted, but, enchanted by the spellbinding scent of her heat and a genuine love for his sibling, he finally gave in and returned her embrace. He pulled her quivering body into his, and their tongues danced deeply together. For a short time they felt unable to pull apart from each other, but he finally broke from her lips to move to her neck, eager to explore the rest of her body. Her soft fur tickled his nose as he ran his tongue from her collarbone to just under her chin. Lily’s legs squeezed Aiden’s sides tightly as he ran his paws along her side and along her stomach, briefly considering moving up further beneath her shirt. But, before he could decide, she lifted her shirt to eagerly show herself to him, and ran her own paws up her tummy, then along her small frame to her neck. Her tail started wagging gently, almost involuntarily, revealing the depth of her enjoyment with the events unfolding between them both.

	Aiden briefly looked into Lily’s eyes once more before he turned his gaze to her invitingly exposed torso. Her chest was still quite youthful, but delicately feminine, and emphasized how petite she was. Her soft, pink-kissed nipples lay just beneath her fur, and Aiden watched as they rose, then fell, with each breath his young sister took. Tenderly, he kissed lightly down her sternum and along her ribcage, only pausing to caress the center of her modest breasts with his tongue; leaving her mamilla firmed with a light sheen of saliva. Satisfied, he found his way to her abdomen, making sure to give each inch of her belly the attention it deserved before finishing with light lick to her bellybutton. Lily sighed deeply and wagged her tail faster in response to each of Aiden’s tender movements, lost in her brother’s touch. His passionate kisses combined with the delicate exploration of her body flooded her senses with a pristine potion of both delight and excitement. A satisfying chill ran beneath the young girl’s fur and skin, electrifying each nerve and bringing oxygen to the fire that burned deeply within her. Aiden felt his young sister quiver beneath him. He was entranced, and a little confused, by the desire he felt for his sibling at that moment. Carefully, Aiden then ran his paw around the elastic lining of her shorts, but stopped himself; a rational thought bubbled to the surface of his clouded mind.

	“Don’t feel like you have to go further if you don’t want to.” he whispered, his brotherly instincts breaking through the intoxication. But, Lily only returned his glance, basking silently in the glow from the laptop. Aiden looked towards the movie, still playing on the screen. His mind briefly cleared, and he pondered the situation before him.

	“You know what, Lil” he whispered again, “Let’s stop before we go too far.” He patted her side affectionately and smiled, then released his light hold on her shorts before beginning to sit back up. But, his sister’s paw returning its grip around his arm stopped him. He looked back down at her, and, as their eyes met, the young cub lifted her hips timidly and guided his paw back to where it was before. Aiden gulped, and, after brief contemplation, began sliding the shorts down her legs. From beneath the polyester peeked cottony pink. Lily’s panties revealed themselves, and her body quivered as she felt herself become more exposed to her brother. A wet spot had formed between her legs, the light pink shaded in a light purple from her juices. Aiden’s heart was racing in his ears - and Lily’s in hers as well. The juxtaposed dance of both embarrassment and excitement from her vulnerability pulsed through her body with each beat. As she watched her brother survey her body, the fire burning within her intensified. Both of their tails now wagged with excitement.

	“Aiden…” Lily’s soft voice broke the heavy breathing between them both, “Please…” She gently bucked her hips forward. Aiden ran a few fingers from her knee down to the inside of her thigh in silent response.

	“Please…” She said once more, this time more desperately. The eagerness in her breath combined seductively with the need in her voice. Aiden paused briefly, then moved his fingers further down her leg. Both intently watched Aiden’s fingers find their way to the thin cloth barrier between Lily’s untouched flower and the brother she had entrusted it with. An electric, satisfying shock ran up through Lily’s body as she felt pressure move over her labia. She had explored this part of her body before, but feeling the warmth of another’s touch brought relief to the ache that, over the last few days, had grown stronger and stronger. She felt a familiar sense of pressure bubbling up between her legs, much like the feeling that she built herself during late nights she spent exploring her body. But, this felt stronger, more intense. She craved those nights to herself, but she needed this. 

	“Ahhn…” A breathy, quiet moan escaped her. Aiden moved his fingers rhythmically up and down the crease in the cloth, feeling the wetness soaking through to his fingers. He could barely hear Lily’s gasps above the heartbeat pounding in his ears. As he gently caressed her sensitive clitoris through the cotton barrier, he felt the material become soaked further and further through with each pass of his fingers. He pulled them away, only briefly, to inspect how sodden her panties had become; a thin string of her nectar followed. Aiden then looked up at his sister laying before him in the throes of her heat.

	“Can I see…” Aiden paused, briefly wondering if and how he should ask the question. “…All of you?” Lily smiled an innocent smile that made Aiden’s heart leap and nodded her head. A frisson of delight rose up his spine, sparked by the eagerness in her response. With a slight excited quivering, he ran his paws up her abdomen to her sides, and began sliding her oversized shirt off of her. She lifted her back to grant him easier movement, uttering a gentle, breathy giggle when it slid over her head. Aiden then turned his attention the soft pink panties that lay tightly around his little sister’s hips, soaked through the front in a light shade of purple. He moved his fingers underneath the cotton, and began to slide them down her legs.

	“Holy shit.” Aiden thought.

	Lily gasped as they came off completely, now laying naked in front of someone else’s eyes for the first time, and gently wagged her tail once more. Aiden looked over her petite frame, unable to move his gaze away from her.

	“Jesus Christ, Lil…” Aiden quietly exclaimed. Lily went to cover herself, embarrassed, thinking her naked body might have bothered him. But, he moved forward and stopped her. “No, no… you’re just so… pretty.” 

	Lily smiled, and Aiden smiled back with a chuckle. The two siblings looked at one another for a small time; entwined both in a deep sibling love long rooted, and a powerful lust flowering anew. They both panted deeply at each other before Aiden leaned forward and kissed her again, this time pulling her close to his body; pressing his torso, and hips, to hers. Lily gasped between Aiden’s soft breaths as they pressed against each other, combining each other’s body heat to bask in together. At that moment, Aiden noted how good her fur felt against his, and proceeded to slide his paw back down between her legs. Lily gasped again, and, gently, Aiden pushed a finger inside his young sister’s dripping, aching pussy. A deep, electric warmth spread through her body from her face down to the claws on her feet. As Aiden’s finger slid deeper, so did their kiss. The room filled with the soft sounds of deep breaths, gentle whispers of pleasure, and the soft rustle of sheets against fur. Rhythmically, Aiden worked Lily from the inside, motioning against the cub’s tiny g-spot. With each movement, her back arched, and a soft moan burst forth from her chest to her lips as her small paws gripped the sheets. Panting, and wanting more, Lily turned to face her brother.

	“Hey…”  she put her paws on Aiden’s broad chest, stopping his movements. She then glanced down at his shorts. “I want to see you, too…” Aiden’s heart leaped once again, before smirking a smirk his sister had seen a hundred times before. Only, instead of annoying her, it made her own heart leap. 

	“Help yourself.” He said through the smirk, asserting himself in an upward position. 

	“…Jerk.” Lily returned through a smirk of her own, the familial snarky tone mirroring her brother’s. She pushed up on her elbows and sat up, facing the shapely protrusion in Aiden’s shorts. She looked up at him and bit her lower lip before placing her paw on his erection, giving it a timid, exploratory squeeze. It was much bigger than the handle on her hairbrush, which quickly led her to wonder if it could fit inside of her. Thoughts of being penetrated by her brother flooded the young girl’s heat-doused mind, and her labia grew even more slick. She gave the protrusion a small kiss and softly giggled before sliding Aiden’s shorts down, uncovering the teen’s member before her, fully revealed from its furry sheath. The resemblance to a red rocket made her giggle; yet, at the same time, it sparked her fascination and a little excitement. 

	“H-hey…” Aiden protested quietly, “Don’t laugh at it.” It was his turn to feel embarrassed.

	“I’m not!” Lily exclaimed in a whisper, and another quiet giggle. “I’ve just never seen one this close before…” Aiden briefly wondered where his little sister had seen another one, but decided to save that question for another time. Lily returned to examining his erection, wrapping her small paw around its shaft. This time, it was her brother from which a breathy moan escaped. Lily grew even more excited at this, and suddenly felt an odd urge that she hadn’t before. 

	“Can I… Lick it?” She asked timidly, looking up into Aiden’s eyes with an innocent glimmer behind her own. Aiden blushed again, and nodded just a little more than enthusiastically. Following a quick, breathy chuckle, Lily ran her tongue along the side of Aiden’s penis slowly. She noted the slightly salty, but not unpleasant, flavor to herself. The taste itself wasn’t particularly noteworthy, but, the quivering, whispered vocalizations of pleasure she felt and heard coming from her brother in response to her touch thrilled her. Fueled by the excitement from her brother’s elation, she moved her small mouth back and forth along his penis, mirroring the rhythmic movements of Aiden’s finger inside her before. Then, compelled by a moment of confidence and curiosity, Lily attempted to fit him inside her mouth, slightly disappointed to find that she could only fit the tip. Despite the shallow penetration, Aiden’s eyes rolled slightly back as he released a small breath of contentment having never experiencing this sensation before. Lily reached down between her legs and touched herself, surprised by how slick she was. As she moved Aiden’s tip around gently in her mouth, she pushed a single finger inside herself, once again igniting a familiar warmth throughout her body. But, the carnal urges of her heat had a firm hold on her mind, and she wanted much more. After brief consideration, she released Aiden’s penis and looked up at him.

	“H-hey… Uhm…” She spoke nervously, with the breathy tone returning to her voice. “Do you want t-to…” She moved down away from him and laid on her back, slightly opening her legs. For one moment, Aiden wasn’t sure whether or not he was dreaming all of this. 

	With no hesitation this time, he followed suit of his sister, and moved his body between her legs before lowering down to position himself over her. His hips met hers once more, and his penis brushed the opening of her labia; the two siblings stared into each other’s eyes, breathing deeply. Lily nodded at Aiden, and he began to slowly push forward. Both hearts beat quickly, and Lily’s breath deepened. Gently, and carefully, he thrusted his hips, shallowly penetrating her, and tenaciously watched his young sister’s face for any signs of discomfort, but none appeared. Only a glowing expression of anticipation and excitement looked back at him; she gently bit her bottom lip with her upper fang and lightly squinted her eyes. The warmth of his sister’s heat wrapped itself around Aiden as he ventured deeper, and Lily whinged in delight as she felt her brother start to slide further into her. Her tail wagged faster and faster between both of their legs with each push.

	“Does… does that feel good?” Aiden asked between breaths, barely able to hear himself over his racing heartbeat.

	“Y-yeahhhn…” Lily moaned softly in response. “…deeper.”

	Suddenly, just before Aiden had a chance to fulfill his young sister’s request, a knock came from the outside of the bedroom door. The siblings looked at each other, both of their eyes widened in panic.

	“Lily? Aiden? Are you kids in there?” Julia, their mother, called out to them from the hallway. The two young foskies scrambled to hide themselves under the duvet as the door slowly opened.

	“YEAH!” They both responded simultaneously. “We’re just watching a… uh, movie.” Aiden followed up, noticing the movie had ended long ago, the credits long rolled through. He felt Lily fumbling for her clothing. Their mother then stepped a small distance into the room with an expression they both hoped wasn’t suspicion. Julia sniffed the air, and her brush of a tail lifted like she was alerted to something.

	“Oh my god…” She uttered. Aiden and Lily froze. “That… is just… too CUTE.” Julia exclaimed loudly. The siblings relaxed. “You two haven’t done that in so long! Aww, I just love that you both get along so well.” An expression of pride appeared on her face as she put her hand on her hips and put her snout slightly up in the air. “Looks like I did something right.” She snickered. “Anyway, you two, it’s late and it’s bedtime.” She dictated in her usual motherly way, then crossed her arms and aimed her gaze at the young female fosky. “Come on, Lily. I’m sure Aiden wants his room back.” Julia chuckled.
	
	“Oh… Uh, yeah! I’m tired of smelling his old socks anyway.” Lily improvised. Aiden pursed his lips. “Can I say goodnight, though? We were having a good talk.” She smiled up at her mother pleadingly. 

	“During a movie?” Julia cocked her eyebrow.
	
	“It was about the movie, mom!” Lily exclaimed, her youthful snark found its way back into her voice. Julia laughed her hearty laugh and turned around towards the doorway.

	“Okay, okay! I’m just playing!” the fox mother said through a chuckle, adding a third instance of familial snark to the scene. “Just don’t go to bed too late, okay? I’m gonna go brush my teeth. Goodnight! Love you both!” Julia blew kisses then walked back through the doorway and back down the hall. The two sibling waited for her to be out of earshot before they turned back towards each other.

	“Wow. That was way too close.” Aiden whispered, “What now?”
	
	“Well…” Lily smiled at him, then pulled her shorts back up and her shirt over her head before getting up from the bed. A small damp spot sat where she had laid in fear that their mother had caught them. She then turned, leaned forward and kissed Aiden softly before pulling back and looking into his eyes. “…Now we just wait until Mom and Dad go to sleep.” She turned and walked out of her brother’s room, glancing briefly back before vanishing from sight down the hall.

	“Holy shit.” Aiden though to himself once more, glancing down at the still damp pink panties Lily had left behind.

-

End Part 1.