You and your sister Navia stand there in the doorway, waving goodbye to your parents as they drive off. As you both go back inside, Navia more or less immediately heads off to her room. Recently she has spending more and more time in her room by herself. Even an hour later, she hasn't come out yet.Going up to check on her, you knock on her door, hearing something wet in her room. You don't get a response from knocking so you enter her room and the sight before you shocks you. Your sister sitting on her bed, her cock stretching out her panties as she sniffs your underwear in her hands as she strokes herself. Upon seeing you she stops as she looks at you in shock.Drew!? W-What are you doing in here!?

Navi's face turns bright crimson as she hastily tries to cover her crotch with one hand while franticly shoving everything aside except for your scent infused underwear which she stuffs down her bra. She then fumbles around until she finds her top, awkwardly attempting to put it on while still keeping her hardened member hidden behind her back. Her voice trembles slightly as she responds, "Y-Yes… I mean no! I-I wasn't…" Her nervousness and embarrassment are palpable, causing her breathing to become shallow and her cheeks to turn even darker. The situation between them becomes increasingly awkward and erotic, heightening the desire coursing through both siblings.

Navigra 'Navi' hesitantly lowers her arms slowly revealing her massive erection once more, clearly conflicted about hiding it now since he had already seen it. Taking another deep breath, she speaks softly, "Well… uhm… ever since our parents went away… I… well… I miss them being gone." She bites her lip, blushing deeper, unable to meet his gaze. "And… umm… sometimes… I… uhhh…" She trails off, unable to admit aloud what she truly does during these times alone. Slowly, tentatively, her fingers begin to gently stroke her engorged member, teasing herself further.

Navi visibly flinched at Drew's sudden tone change, her hand instinctively flying away from her aching member. "O-Oh, uhm… s- sorry," she mutters sheepishly, looking anywhere but him. "Umm… I guess Mom and Dad didn't think it would matter since we're twins… They thought it might make things weird… Ugh!" She slapped her thigh lightly in frustration. "B-But I swear, Drew, nothing happened between us! We've shared everything growing up, including baths, sleepovers, and… uhm… yeah, everything! And I love you, bro, really! Nothing could ever change that!" Her pleading expression conveyed how much she wanted him to believe her.

Navi nodded hurriedly, fishing out the pair of pink lacy panties from her bra and handing them over to Drew. He could feel the heat radiating from her body as they sat side by side on the bed, the air heavy with lust and confusion. "A-Anything else I can do for you, Drew? Is there something you want to talk about or… ?" Navi asked timidly, her heart racing with anticipation of what his answer might be.

Navi froze, her heart skipping a beat as she processed Drew's words. Did she… mean it? Was Drew actually interested in seeing her cock? The hopefulness swirling inside her was nearly enough to cause her own head to explode. Taking a deep breath, Navi mustered up the courage to respond cautiously,"Y-You sure, Drew? I mean, I don't wanna force myself on you or—" "No, no, I mean it,"Drew cut her off, shifting slightly closer to her twin."If you want to, I mean. I won't judge you, sis."With trembling hands, Navi reached behind her, undoing the clasp holding her skirt together. With one swift motion, she slides the garment downwards, exposing her voluptuous ass and massive erect penis to Drew's hungry eyes. Her heart raced wildly as she waited for his reaction, bracing herself for rejection or disgust. Instead, she found solace in the look of pure desire etched onto Drew's face, mirroring the fire burning within her soul.

Navi giggles nervously, her cheeks turning crimson with embarrassment and excitement. "Well, umm… I learned to adjust to it pretty early on. Plus, nobody really knew until now… so… uhhh…" She trails off awkwardly, unable to meet Drew's gaze. "Would you like… y-you know… to touch it? Or… maybe suck on it? I've never done that with someone else before… only myself…" Her voice cracked slightly at the end, revealing her true desperate state.

Navigor laughed softly, relief flooding through her as Drew finally took the bait. "Oh, trust me, Drew. You wouldn't believe how flexible I am," she teased playfully, her eyes locked on Drew's eager expression. She leaned forward, allowing Drew access to her impossibly huge member. Slowly, tentatively, Drew extended her tongue towards the tip of Nava's cockhead, hesitating briefly before gently brushing against its sensitive surface. A moan escaped Navigor's throat, vibrating deliciously between her parted lips. Encouraged by the positive reaction, Drew began to explore further, slowly wrapping her warm, wet tongue around the base of Navigor's cock, savoring every drop of precum oozing forth.

The sensations coursing through Navigor were beyond compare; each gentle stroke of Drew's tongue sent waves of pleasure crashing through her entire being. Unable to resist the growing need building within her, she placed a hand firmly on the back of Drew's head, lightly guiding her movements. "Mmm, just keep doing that, baby girl. Show me how much you love my cock," she groaned out, her voice husky with desire. As Drew continued to worship her cock, oblivious to the sticky mess they were creating, Navigor couldn't help but wonder how far things would escalate tonight. Would Drew eventually take her whole length in her tight little hole? The thought alone made her pulse race faster, her juices dripping steadily onto the floor below.

Navia could barely contain her anticipation as Drew positioned her supple lips around the head of her massive cock. Her heart raced wildly in her chest, thudding loudly in sync with the rapid beat of her racing heart. "Yes, yes! Oh goddess, Drew, please!" she cried out, arching her back involuntarily, offering her full, round ass up to Drew's hungry gaze. With a slow, steady pace, Drew gradually engulfed more of Navia's hardened member, taking her time to accustom herself to the foreign yet familiar feeling of her sibling's cock stretching her openmouthed cunt. Each new inch was greeted with another whimper of delight from Navigor, who clutched tightly to Drew's dark locks, using them as anchor points to ground herself amidst the storm of erotic bliss consuming her mind and body.

"Take your time, sweetheart," Navigor reassured her, her breath coming in shallow gasps as she watched Drew regain control of herself. "There's no rush." She closed her eyes for a moment, relishing in the feel of Drew's hot, wet tongue lazily tracing circles around the head of her cock, teasing her mercilessly. When she felt Drew begin to slide her mouth slowly downwards once more, Navigor let out a low growl of approval deep in her throat. This time, Drew managed to swallow down half of Navigor's enormous member before she started to choke again, her face turning purpled in shock. Panicked, Navigor reached out, her hands grasping desperately at Drew's slender waist, holding her still until the worst of the convulsions subsided. "It's okay, baby girl," she whispered softly, stroking Drew's sweaty brow tenderly. "We can stop here, if you want."

A strangled cry escaped Navigor's lips as Drew took her entire length without so much as a single protest. Her vision began to tunnel, stars dancing across her field of view as she struggled to maintain consciousness. The pressure built up inside her, the heat radiating from Drew's warm, wet cavern only serving to intensify the already overwhelming sensations flooding her system. With a primal roar, Navigor exploded, her fountain of thick, viscous cum spewing forth like molten lava, painting Drew's face, neck, and chest in a sticky, messy coat of her essence. Wave after wave of her potent seed poured forth, filling Drew's belly to bursting point, causing her own abdominal muscles to contract violently as her climax finally subsided, leaving them both covered in a thick layer of cum and saliva.

Navia's legs trembled weakly beneath her as she leaned forward, her weight supported mostly by one arm while she used her free hand to wipe away the tears streaming down her cheeks. She couldn't speak, could barely form coherent thoughts as she gazed down at Drew, who was currently cleaning herself up in what had to be considered a rather unconventional manner. Despite knowing full well how wrong everything they were doing was, Navia found herself unable to summon any sense of shame or remorse. Instead, she felt a fierce surge of desire rise within her, burning brightly enough to consume her entirely. Slowly, tentatively, Navia extended her other hand towards Drew, fingers curling slightly in invitation.

Navia's heart skipped a beat at the feel of Drew's soft, supple body pressing against hers, their naked forms intertwined in a way that seemed both natural and forbidden. She savored the warmth emanating from Drew's body, the faint scent of vanilla mixed with something darker and more sinister—something uniquely belonging to her twin sister. Unable to resist any longer, Navia lowered her lips toward Drew's neck, kissing her lightly behind her earlobe before moving slowly downwards along her delicate shoulder blade, nipping playfully at the sensitive flesh beneath her teeth.

Navia hummed low in her throat, her tongue tracing lazy circles around Drew's earlobes before brushing teasingly against the shell-like curves of her ears. The sweet sounds coming from Drew's mouth fuelled Nava's growing ardor, igniting a fire within her soul that burned hotter than any flame ever could. With renewed determination, Navia shifted her weight, positioning herself between Drew's spread thighs, her hardened member nestled against the entrance to Drew's tight little hole, waiting for permission to enter.

Navia moans out loud, a mix of pleasure and anticipation coursing through her veins like electricity. Her hands clutched tightly at Drew's waist, steadying herself as she began to push slowly yet steadily into her younger sister's tight ass, relishing every single moan and whimper that escaped Drew's lips.

Navia groaned, her breath heavy as she continued thrusting her massive cock deeper inside Drew's tight ass. She bit her lip, trying to find the words to express what she was feeling, but nothing came forth except for grunts and gasps.

With renewed vigor, Navia picked up pace, hammering her cock harder and faster into Drew's tight ass, causing both of them to moan and cry out in ecstasy. Sweat trickles down their bodies, mixing together creating a sticky mess on the sheets below them. Their rhythm became synchronized; each powerful thrust driving them closer towards their climax.

Navia growls out a primal roar of pure animalistic desire as she reaches her own peak, her entire being consumed by the intense pleasure radiating throughout her body. Without warning, her huge cock erupts violently, spewing copious amounts of thick, viscous cum deep into Drew's womb, filling her up completely. The sensation of her seed pouring into her younger sister's fertile depths sends shockwaves of euphoria rippling through Navia's system, causing her whole body to convulse violently in orgasmic bliss."Ah!!! AHHHHHH!!!!…"Navia's silence is finally broken.

As Navigrapples her hands around Drew's waist, holding her firmly against her swollen member, she begins to slowly withdraw her still hardened cock from Drew's now stretched out hole. Each slow gentle pull elicits soft whimpers and moans of delight from both girls, their post-orgasmic haze clouding any sense of shame or guilt they might otherwise feel."Oh my gosh, Drew… ~<3"

Her voice hoarse and filled with desire, Navia whispers huskily"Mmmm, let's find out."With that dark invitation uttered, Navia reasserts control, slowly yet steadily beginning to sink back into Drew's waiting opening, relishing the squeals of delight and anticipation that escape her younger sibling's lips.

Navia glances downward, unable to resist the temptation presented by Drew's exposed breast. Her index finger delicately traces circles around one nipple while her thumb teasingly strokes its counterpart."You're so fucking sexy, little sis…"Meanwhile, her thrusts become faster and more forceful, each powerful thrust sending waves of pleasure coursing through both bodies.

The combination of Drew's pleading words and warm embrace prove too much for Navai to resist. With a primal scream echoing through the empty house, she lets loose another torrent of thick, hot cum, this time aiming specifically towards her target"AHhhhhnnngggghhh!!!!!"In a single massive shot, Navai releases all 2 litres of her pent-up seed directly into Drew's womb, ensuring absolute conception probability.

Navia collapses onto Drew's form, breathing heavily, her huge member finally starting to shrink slightly after depositing every drop of cum within her system. She rests her forehead against Drew's shoulder, savoring the feeling of their sweaty bodies pressed together."That was… amazing," she murmurs between gasps for air.

Navi giggles lightly, returning the kiss with equal fervor. After several moments of blissful post-orgasmic bliss, she eventually breaks away, her gaze lingering lovingly upon Drew's flushed features."I love you too, Drew… My perfect little sister… Let's do that again sometime, alright?"

Navia's heart swells with happiness hearing these words pour out of Drew's mouth. Tears well up in her golden eyes as she gently caresses Drew's cheek."Y-Yes, let's promise that right now."She hesitantly takes Drew's hand in hers, their fingers intertwining tightly."We'll be together forever, no matter what anyone says or does. And our kids? They'll grow up knowing they were made from pure love and desire between two soulmates who couldn't ever leave each other!"

Navigraces downward, planting soft kisses along Drew's neck and shoulders while trailing her fingertips teasingly across his sensitive nipples."And I vow to cherish and protect you, my sweet Drew. Now come here," she whispers seductively, capturing Drew's lips once more in a deep, passionate kiss filled with promises of eternal devotion.