Chapter 3: "No Turning Back"

Story by Lexa on SoFurry

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"No Turning Back"

by Lexa

Featuring Lexa & Zerin


Lexa stared wide-eyed up at her brother, a thick sense of tension in the room surrounding them. The longer he stared down at her with those hungry eyes, the more self conscious she grew, timidly raising an arm to cross over her bare chest, brows furrowed as the two eyed each other up and down. "Zerin... what are you doing?" Her voice was a bit jittery, clearly quite nervous at what was unfolding between them in that moment. She watched as her twin stepped forward still, the expression behind his deep, dark eyes somewhere between lustful and longing.

"Sis, I... I'm sorry, I just..." Zerin winced, still gripping his twitching member in his hand through his baggy shorts, now able to feel the wet splotch he'd made from drooling pre in wanton anticipation. He knew what he was doing was wrong but desire had finally squelched all rationality he had left underfoot. "I can't stop thinking about you... I saw your cam show." There was a hint of shame behind those words, but she needed to hear the truth. All cards were out on the table, now.

Lexa's eyes grew wider than they'd been before, the blush at her cheeks still burning bright. She glanced nervously at her laptop, large prehensile tail moving to close the lid and slide it to the far corner of her bed. The toy she'd used earlier was still half buried in her soaking wet hole, something she'd nearly forgotten about in her embarrassment, until now. Unsure of her next movements, she opted not to touch it, still having adjusted her legs so that he couldn't quite see, though he already knew it was there.

His sister's silence and the continuously growing tension in the air was driving Zerin mad, closing his eyes a moment and breathing deep her sweet scent, biting down on his own lip even harder before looking back to her. "Don't hate me for this..." Words weren't going to solve anything in this moment and Zerin was acting on instinct now, full tilt. He wasn't sure how Lexa would react, but he needed to know. A few apprehensive steps forward was all it took to reach her, kneeling down onto the mattress and crawling forward on his knees, a hand on each of hers as he spread her legs wide open before him, taking in the view up close and personal.

"Z-Zer!! You can't...!" Lexa cried out softly, unable to stop him, or perhaps a part of her simply didn't want to. Her voice wasn't exactly convincing, not the harsh and bitter tone he'd expected her to have at his actions. He actually looked up at her, surprised by her lack of contempt at what he'd done thus far. Lexa's eyes were closed tight, still covering her chest with a single arm, barely enough to conceal the upper and lower swell of her breasts from view. That shy and timid behavior was unexpected of her yet it brought the widest grin to his face. All this time he'd thought her such a confident and maybe even domineering woman, but deep down she was just a shy and timid, submissive little girl.

Zerin's hand reached for the base of that brightly colored knotted cock she'd toyed with earlier, drinking in the sight of it halfway buried between her puffy pink lips and the shimmer of her juices coating it still. With a devious grin, Zerin pulled it back until nothing but the tip was left still in her, glancing up at his twin for the briefest moment before slamming it back in, the knot stretching her wide and forcing its way back in with some amount of ease thanks to how wet she still was.

Lexa's head immediately fell back along with her arm, bracing herself before they both finally gave out, dropping her back to the mattress with a hefty jiggle of her pretty pierced tits. The moan that he just helped elicit from her was music to his ears and all he needed to confirm his suspicions about her. Zerin's deep voice was nearly a seductive growl at this point when he finally spoke again. "You wanted this too, didn't you...?" Again and again, Zerin rammed the toy in and out of her until he could hear the knot popping against her wet hole each time... and each time to hear his sister's sweet, lustful moans from every thrust. "No... you want more than this, isn't that right?"

Lexa couldn't find the words, couldn't speak to save her life. Her heart was set to burst at the pace it'd taken up, a heavy sense of guilt settling over her as her toes curled and she willingly spread her legs further for him, arching her back into the toy he kept filling her with. She wasn't sure just what had come over him, but it had a hold of her too.

"C'mon, sis... Answer." Zerin's voice held a surprising amount of dominance to it in that moment, as at the very same time he pushed that toy to its limit once more, meeting her natural limits with a firm bump against her cervical wall.

Lexa's voice cracked as she cried out, fingers clenching the sheet beneath her with intensity, the warmth at her cheeks making her face feel as if it were aflame. "Y-yes...!!" she whimpered softly, feeling both guilt and a sense of relief that urged her to speak even more. "I want you, too... I..." she paused, glancing down at him before looking away again in shame. "I want more..."

Zerin's many teeth went on display at those words in a positively wicked grin, a teasing thumb passing over her swollen clit and grinding softly, causing her to squirm and moan for him even more. "Good girl, lil' sis... Good girl." His voice was warm with praise and searing hot with lustful intent. It sent shivers down her spine.

Gripping the base of the toy he still held, Zerin gave it a few more unforgiving thrusts, pumping it in and out of her so vigorously she couldn't keep quiet if she wanted to. Finally, he practically ripped it from her poor, abused little hole, tossing it somewhere behind him on the bed before inching his way between her legs even further. Lexa peeled open her eyes to try and catch what he was up to but a moment too late. Head fell back against her pillow once again as she felt her brother's tongue glide between her folds, caressing the tender flesh there; he slid his tongue soft and sweetly over her sensitive clit. Her muscles tensed under his touch, aching for even more.

"Oh god, Zerin..." Her voice trembled as she spoke, helping to keep that grin at his face. It felt too good to stop him and soon her mind had gone blank of inhibitions, of contemplation or remorse.

"Mmm... You taste every bit as sweet as I imagined." The words made her face burn brighter still, tail curling timidly beside her. Her lips parted once more as a sharp gasp sounded from her, his tongue delving deep so suddenly it made her muscles jolt in shock. She could feel the pointed muscle drive down between her lips, filling her with its wet warmth and bumping her sensitive inner walls. Her brother's cold nose tapped teasingly against her clit, sending her off the rails.

Without warning, Lexa's body tensed and shuddered, her hands flying to her brother's beautiful head of hair and gripping tight as she came. The rush of her juices over his tongue made Zerin growl in appreciation, lapping hungrily at her needy hole, as if he'd never tasted anything better. Licking his maw clean, he pulled his head back and grinned down at his sister, both hands taking a handful of her beautiful breasts and squeezing. "Mmm... Cumming so soon...? You must've really wanted this." That cocky tone of his would have elicited an eye roll from her any other day, but not today. She simply nodded her head rather meekly, panting softly like a bitch in heat.

If Lexa thought she was done already, she had another thing coming. While she lay there panting and whimpering in the afterglow, Zerin and slid both shorts and boxers down, letting a shockingly thick girth and considerable length spring free, pre-cum still dribbling from the tips. Yes, _tips. _The opossum's cock was as most of his kind's, bifurcated- split down the center, producing two pointed tips connected to a single shaft. Some might say it resembled a very thick version of a forked tongue, of sorts.

Zerin made short work of inching his way between her still spread legs, taking advantage of her distracted state of mind before he began to grind the underside of his shaft against her wet inner folds. This of course ended her distraction, causing her to stare up at him with wide, yet needy eyes. She bit her plump lower lip in a mixture of ecstasy and anticipation. Not a single word of denial was spoken.

"Tell me what you want, Lexa..." Zerin growled demandingly, grinding his cock even harder against her, directly abusing her hypersensitive clit. His ears flickered as she whimpered and moaned, grinning as she squirmed beneath him.

"I want you... please, Zerin, I can't take it anymore..." Her voice was timid and shy, no resounding confidence or bold behavior like he'd initially suspected of her. It was cute, to him, and all he needed to hear from her to know that he wasn't going to stop here.

Zerin pulled his hips back, angling his throbbing cock just so, teasing the tips at her entrance, spreading her apart by just a meager few inches as he watched her squirm, waiting for her desperation to peak. He wanted her to beg for it. He wanted to hear her say the words he'd always dreamt of her saying to him and no one else.

The teasing made her body ache. Lexa could barely sit still, desperately arching her back and pushing her hips up and into him, doing anything she could to ease him into her before she finally caved. "Zerin, fuck... please! I can't take it! I want you inside me... right no- AH!!" Her voice trailed off in a high pitched squeak of shock and delight as Zerin cut her off, thrusting himself into her with an elated grunt and dominant snarl.

"Fuck... YES!! You have no idea how long I've wanted this, sis... You're even tighter than I imagined!" His voice was loud and boisterous, uncaring of who heard from their worn out apartment walls. He'd buried himself balls deep into his sister's needy cunt, savoring the way her inner walls squeezed and milked his thick, throbbing cock. For a moment, he simply remained still, hands wrapped around her hips and keeping her buried to the hilt, letting himself twitch and pulse inside of her, letting her sweet seductive sounds fill his ears- savoring the moment he'd long awaited.

Lexa was at a loss for words, unable to speak or even think for that matter. She needed nothing more than to feel... and she felt plenty. Filled to the brim with her brother's massive girth, it made her head swim with a mixture of emotions she knew she was never meant to experience... but she didn't care. It felt too good... too _right _to care.

Finally having had enough of sitting still, Zerin drew his hips back and smashed them into her again, pulling her down against his with each and every thrust. Eventually he let go of her tiny waist and leaned over her further, taking both wrists in a single hand and holding them over her head, pinning them to the mattress as his mouth- still thick with her scent- latched itself over one of those pierced nipples, tongue teasing at it as he suckled firmly, pounding away at her pussy all the while.

Lexa's breasts bounced with each thrust, crying out at the top of her lungs, damn near. If there was anything that felt good in this world it was the rush of a guilty pleasure. Harsh slapping sounds were audible as their groins met with each slam, the wet, slurping noises of his cock leaving no ounce of her unfilled echoed throughout the room.

"Mmn... Fuck, sis... I'm gonna cum, and I'm _not _wasting it." He growled into her ear, licking the edge of the sensitive flesh there as he continued to drive himself into her. Lexa couldn't keep her mouth shut, even after he threatened to cum inside her.

"Do it..." Lexa whimpered as she wrapped her legs and arms around him, her tail wrapping tightly around his leg until the tip found his bulging sack beneath, desperate for release. The sensation of the delicate touches of her prehensile tail sent him over the edge, flinching for just a moment before clenching his teeth and going buck-wild on her. She was certain to be sore after all this.

After a few more brutish thrusts into her, Zerin's cock twitched a couple of times against her inner walls, spurting rope after rope deep into her depths. His muscles would barely commit to much more movement after that but still he forced his hips back for a few more shaky thrusts, emptying every ounce of seed he had to offer into her, without hesitation. By the time he finished, Lexa's belly might have had a slight swell to it, a few droplets of their combined mess squeezing their way out from the seal she made around his considerable girth. All the while he could feel her pussy milking him for all his worth, the now familiar sounds of yet another release resounding from his sister beneath him... her third time for the night. The sensation of him stretching her so wide had sent her over he edge yet again... more than she could handle.

Lexa's chest rose and fell with heavy breaths, eyes fluttering open to stare up at her brother. The realization of what they'd just done together finally began to sink in as their eyes met, their hips still connected, nothing but a wet mess between them. The two lay still a moment, breathing heavily at one another. The air between them was thick with each of their scents, the aftermath of their coupling. For a while, no words were spoken, the two of them catching their breath before Zerin moved a hand to cup the underside of her head and bringing it to his lips.

Lexa's heart fluttered, feeling her brother's lips against hers in an unexpected tender moment. Their tongues met for the first time, his grazing over the stud in her own and teasing at the metal ball. After what felt like so much more than just a minute, Zerin pulled back, ending their kiss with a loving lick to her lips. He pet over her head, gently brushing the hair from her eyes before planting another soft kiss against her forehead. No matter how lewd their actions, she needed to know that she was more than just a fantasy fulfilled, to him. She was his baby sister and he cherished her deeply.

"I love you, Lexa."

"I love you too, Zer."