Didn't expect to be writing another Honkai fic so soon, but Mobius is a thing and I'm now scribbling many lewd ideas of her. Possibly also a chapter 2/3 of this fic too.

That aside, enjoy~

The Snake's Prey

Mobius wasn't planning on celebrating Halloween. It, plainly put, 'wasn't her thing'.

However after a couple hours of being pestered she was convinced by Elysia to go along with it, with the insinuation that it was simply a task too formidable for Mobius to handle. Her pride thusly offended Mobius ended up going all the way, dressing her home up in full Halloween regalia internally and externally, even buying several buckets of sweets and waiting patiently in her home for trick-or-treaters to come.

And come they did. Swarms of children arrived practically every five minutes, bewitched by the fake-zombie arms in the garden and the animated bats that mechanically flew around her house on a cycle. Though Mobius wasn't fond of children the praise they heaped upon her, knowingly and not, inflated her pride enough that she tolerated their existences and paid them their candy as tradition expected. And Elysia said she couldn't handle such a simple task.

Smirking to herself Mobius leaned against the wall of her quaint living room, staring out the window at the street beyond, waiting her next customers. The living room was unlit but she had no troubles seeing, nor did she struggle to peer out into the dark street, only the street-lights present to illuminate it. She thrived in such an environment; to skulk and slither in the dark like a true serpent. A shame then that she wasn't gobbling up unfortunate fools tonight.

''Hm...?'' As that thought struck her, however, she noticed a young man passing by – probably in his early twenties and wearing just a lazy zombie costume, his clothes deliberately scruffy and with a fake nail headband over his head, making it look as if he was impaled through the skull.

However it wasn't his costume that caught her attention, but his looks. Broad shoulders, adequate height, a head of short messy hair and a clean-shaven jawline – Mobius licked her lips at the sight of him.

'Looks like I'll be having a meal tonight after all~' Mobius thought to herself, her smirk widening as she saw him enter her garden and walk up the path.

Swiftly Mobius left her spot by the window, crossing through her unlit home and reaching the front door. The tarp she'd planted across the walls and floor made it look like a cave almost; some clever holograms making it appear as if the hallway stretched on for forever, adding to the wet cave-like appearance. It was also barely lit; the row of candles on either side of the hallway dim and faintly flickering as she passed, illuminating her midnight-black dress that reached from her modest bust down to her shins. It was form-fitting, snug even; emphasising her slender physique whilst her arms were left bare, her fair skin seemingly pale in the dim. As she neared the door Mobius plucked up a witch hat and settled it upon her head, smirking to herself as she bent the handle, and at last opened the door.

A cool gust of wind entered her home, and the voice of her unwitting prey followed suit.

''Woah...'' The young man murmured, gazing at her with slightly wide eyes, as if transfixed by the sight of her.

Though she knew she was a beautiful woman, Mobius gladly fed her ego another little morsel.

''Greetings, oh traveller.'' Mobius greeted melodramatically, giving a slight, exaggerated bow – feeling more than seeing his gaze flicker down to her chest, her dress leaving some bare to his gaze. ''What brings you here?''

''Oh, I just thought your house looked cool.'' The young man remarked, looking back at the garden. ''Must've taken a lot of work. I walk down this road every so often and I can't remember all the decorations being out by then. You must've worked really hard to get it this good so soon.''

''Indeed. It was not an altogether arduous task though, truth be told.'' Mobius loftily said, cupping her cheek. ''That aside, with such a costume I imagine you're here for some candy?''

''Haha, no, no, it's fine.'' The young man chuckled a bit sheepishly, his eyes drawn back to her. ''I just uh... wanted to say hi, I guess.''

''Oh?'' Mobius had to resist the urge to lick her lips. ''Why don't you come on in then, and I'll show you the rest of my haunted house~?''

''Is that really alright? I wouldn't want to intrude...'' He remarked half-heartedly, though she could see him glancing past her at the decor behind her.

Mobius just chuckled and stepped to one side. ''It's fine. Please, come in~''

The young man hesitated for only a moment more before complying, stepping inside her home. Amused Mobius shut the door behind him and led him on a tour through her home, gladly showing off the decorations she'd added to all the rooms, even the ones only her Flame Chaser colleagues would ever see such as the mechanical pumpkin drones in her kitchen to the control panel in the hallway closet, allowing control of the mechanical bats outside and their flight routes.

Once all of that was said and done though Mobius led the now-relaxed young man downstairs into her basement, where her laboratory laid. It was far more extensive than her house was, easily the size of the entire plot of land and with several floors – she'd have made it larger, but housing laws were a pain, though Elysia at least had promised to solve that in the coming weeks; allowing her to expand her lab much more.

''Woah.'' The young man remarked, gazing around at the various potions, tables of vials and various science-related tools laying about. ''I didn't know you were a scientist.''

''Let's just say it's a passing hobby of mine.'' Mobius said mirthfully, snaking an arm over his shoulder and pulling him back against her. ''But enough of that. Now that we're alone...''

Unseen by the young man Mobius reached over to one of the counters and plucked up a syringe pre-filled with a sedative.

''...allow me to devour you~''

And then just as the young man registered her words, she jabbed him in the side of the neck; knocking him out within seconds of injection.

X-x-X

''Ugh...''

The young man woke up slowly, head heavy and eyes blurred as he looked up at the white ceiling overhead. It took his mind several moments to stir from its forced slumber, a grogginess weighing down on him that gradually banished and granted him coherency once more, a groan soon escaping him as he managed to think.

'What happened...?'

It didn't take long for him to think back; to arriving at the cool dressed-up house, to chatting with the green-haired woman who lived there – and to hearing her whisper in his ear right before she jabbed something into his neck, knocking him out if he was to guess. The thought made him raise a hand up to her neck... or try to, that is. His wrists were bound off to his sides by metal cuffs, smooth and easily an inch or two thick. When he tried to move his legs he found the same result, and also alerted him to the fact he had been stripped down to his boxers and nothing else; the cool, sterile air of what he recognised as a laboratory brushing over his bare chest.

''Awake, are we~?''

The smooth, silky voice of the green-haired woman – Mobius, he vaguely recalled her saying – drew the young man's gaze over to the green-haired woman. The laboratory was dimly lit, some green flames hovering above candle sticks around the lab and casting Mobius partially in shadow – the problem fixed when she took several steps closer, her smirking visage revealed to him. The slow, punctuating click of her heels echoed in the quiet, and when he tried struggling once more Mobius merely giggled.

''Don't bother. You won't be escaping from those cuffs, my dear lab rat~'' Mobius crooned as she approached his side – and it was then that the young man realised he was tied down to an oversized operating table of some kind.

Just as panic began to creep up through his veins a slender hand cupped his cheek, making the young man freeze. Slowly he tilted his head towards the warm palm, tracing the arm up to Mobius as the green-haired woman continued to smirk down at him – amusement rich in her eyes alongside a healthy dose of arousal. The latter emotion made his blood rush south, transfixed when gazed at with such desire from such a beautiful woman. Even if it turned out said woman was probably psycho, or at least a bit too into her science hobbies.

''Relax, my little lab rat.'' Mobius crooned, stroking his cheek more before sliding her hand over to his jaw, tickling it with her fingertips. ''I wont dissect you tonight, it would spoil your charm. Rather, I have something... different, in mind.''

The young man shuddered at her tone, eyes locked onto the green-haired vixen as she sauntered down to the end of the table and pressed an unseen button. Not a moment later the whole table seemed to jerk, before with the whine of hydraulic motors the table raised itself up at an angle, straightening itself onto its side until the bound young man found himself upright, the table to his back and Mobius to his front, smirking approvingly.

''You just stay there. I'll begin our... experiment~''

The way Mobius licked her lips at him sent shudders through him, arousal creeping through his veins and his blood rushing south. Whether Mobius noticed or not she got down on her knees all the same, the movement graceful – just as graceful as how she pinched the front button of his boxers and undid them, the two halves spilling open and allowing his cock to spring out. Mobius cooed at the sight, prodding the tip before curling her slender fingers around the shaft one at a time, giving it a firm squeeze when it was finally in her grasp.

Then she started to stroke him. A stilted groan bubbled up from the back of his throat, unable to be quelled as her soft hand tugged his cock forth then eased it back down, her hand-job slow and shockingly pleasurable despite the fear coursing through him. His gaze was fixated on her, his head refusing to move and look away as the green-haired woman leaned in – and a soft, stiff gasp escaped him as she flicked the tip with her tongue.

''Hmhm. Already reacting so strongly? How weak, my little lab rat~'' Mobius cooed teasingly, her tongue dragging itself up over the tip and then swirling around it, the motions slow and oh so sensual.

The young man pursed his lips, doing his damnedest to resist, but as her lips kissed the tip once more he couldn't hold back the sound – another moan spilling from his lips. A giggle was his only warning before he felt her lips graze the head, and a split-second later Mobius captured the head between her lips, sucking upon it. Her tongue was equally as swift, slithering and sliding over the bulbous head as the young man gasped in pleasure, his hips seizing forth even as his upper back pushed against the cool examination table.

The hand stroking his cock went lower, pressing his boxers flush against his groin as she focused on stroking the base – leaving the rest of his cock at the mercy of her mouth. Her wet, inviting mouth – her tongue stroking along the head before seductively going under his length, forming a wet bed for his dick to rest upon. Her bottom lip too stimulated that part of his length, pressing up against the underside when she sucked her way back up to the tip before going back down once more.

''Mm... smch, mm~'' The sensual noises Mobius made as she sucked his cock only fuelled the simmering lust within him.

Groaning the young man rocked his hips slightly, limited by the bindings pinning him to the table but still allowing him to thrust a little into Mobius's inviting mouth. The slender woman didn't protest, looking vaguely amused as she responded by sucking him off faster – smooth slurps dragging her lips two-thirds of the way down his cock then back up to the throbbing tip. It felt heavenly, her tongue also pressing itself up against his cock more actively, undoubtedly feeling the throbs of pleasure that twitched up his swollen length.

Mobius was just getting started though. Grasping his hips the snake-like woman bobbed her head faster, those pinkish lips of hers raking along his cock – able to go all the way now that her hand was out of the way. She practically gobbled up his entire length, the tip hitting the back of her throat but not stopping Mobius nor even giving her pause; her rhythm a constant along with the occasional hum or grunt, the tip of his cock frequently constricted by her throat muscles when it went too deep.

The young man shuddered and moaned in his bindings, pleasure throbbing up his cock. He couldn't hold back; she was too good. Heat climbed his cock as his orgasm raced to the forefront of his mind, his thoughts consumed by the sensation of her slithering tongue slapping against his cock or the lips pursing snugly around his cock, squeezing his length faintly as if trying to coax out his load sooner than she already was going to.

The thought ended up hastening his end, pleasure evolving into a fiery peak – until with a gasp the young man exploded in her mouth. ''C-Cum- mn!''

Mobius made a light, surprised sound as ropes of cum spurted from his shaft, landing across her tongue or hitting the back of her throat. Without missing a beat Mobius slid herself all the way down his cock, deep-throating him and dutifully sucking him dry for every last drop of his seed. Only when she could extract no more semen did Mobius pop her lips off; taking a second to swallow the load resting in her throat before finally standing back up – a press of the button slowly lowering the young man horizontally one more.

''Not bad, my dear lab rat~'' Mobius crooned. ''But we aren't done yet~''

The young man didn't get the chance to question the snake-like woman, as with naught but a pull of a string her form-fitting dress loosened – and then spilled down her front, thumping softly as it hit the floor. In its absence her entire body was laid bare, from her slender shoulders and lithe arms to her long legs that she kept close together. Her bust was on the smaller side but fitted her slender form, as did her flat stomach and narrow waist; the young man's gaze slowly coming to settle on her sex. Shaved smooth and with an elaborate, green-tinted tattoo of her signet on her groin.

'Holy shit she's got a womb tattoo.' Was the young man's main thought.

''Like what you see~?'' Mobius sensually hummed, running her hands over her stomach and down to her thighs, his gaze following her digits the whole while.

''Y-Yeah.'' The young man stuttered back.

''Good answer.'' Mobius smirked, a noticeable sway to her hips as she sashayed up to the table and climbed onto it; enough room that she could easily straddle him. ''Let's get those boxers off...''

With a little fiddling she tucked his still-erect cock into his boxers and pulled them down to his thighs, revealing his cock in full. Smirking Mobius stroked his balls and gripped his shaft a moment after, giving it several firm tugs that left the young man groaning in bliss – pleasure pulsating up his girth from the simple act with how sensitive he was. Mercifully Mobius didn't tease him for long, her own needs becoming apparent as she shuffled closer and positioned herself directly above his erect cock.

The tip touched her slim pussy lips, rubbing along them once, twice – and on the third go Mobius lowered herself down. Slick, searing warmth engulfed his cock in an instant, easily half his shaft swallowed up by her pussy and constricted ever so tightly; purging his mind of all thought for a solid second. Mobius's sultry moan stirred him out of it however, shudders rippling through the young man as she pushed herself down deeper; greedily taking as much of his cock inside her as she could.

Until soon she was all the way down; his swollen cock throbbing inside of her. Mobius moaned seductively and tipped her head back, one hand resting on his stomach whilst her other slid up and groped her own tit. ''Mm... not bad, you're quite sizeable. Let's see if your stamina is enough to satisfy me, though~''

The young man didn't get a chance to argue; her slippery walls constricting his shaft as she raised herself up. Moaning the young man could only loll his head to one side, gaze locked onto Mobius as the seductress raised herself up to the tip before impaling herself all the way back down again – bouncing with slow but smooth rolls of her hips. From his position on the table he could admire how her flat stomach flexed or tensed as she moved, his gaze drawn to her waist then down to her hips; his gaze ending on her pussy as his cock disappeared inside her tight, clenching tunnel.

''Mm~ Keep that look on your face, lab rat~'' Mobius moaned seductively. ''You look ever so delectable with it~''

In response the young man bucked his hips up as much as the position would allow, thrusting up into her tightness. ''Let me out, please...''

''Mm? Why should I?'' Mobius queried between breaths, both hands sliding over her tits and groping them.

The young man stared at chest for a long moment; briefly transfixed by the sight of her boobs before he snapped himself out of it. ''I... I wanna use my hands too...''

''Hmhm, is that so? Well, perhaps if you're a good little lab rat, I'll let you out. Think of it as a reward~'' Mobius purred, arching her back with a satisfied sigh. ''Ahh... and keep thrusting your hips like that~''

Eager to be freed the young man obeyed, thrusting himself up with hurried bucks of his hips – spearing his sensitive cock between her clenching walls with a moan. Mobius wasn't idle either though, continuing to ride him and slowly falling in sync with him, his cock plunging between her quivering walls and pushing mewls out of the green-haired woman. Her stamina had never been the best and that fact was coming back to bite her in the butt; a distinct, tight knot forming inside her as she forced her hips to keep moving.

Spicing things up Mobius planted herself down on his cock, rocking her hips back-and-forth hurriedly, stirring him around her clenching vice. The young man gasped, nearly thrashing in his bindings and making Mobius smirk breathlessly – a domineering glint in her green eyes as she worked her waist, her slitted pupils full of lust. Faced with such an intoxicating stare the young man found himself rapidly coming undone; pleasant weakness fluttering through his stomach even as a strong urge rushed up his dick, accelerated by the slippery heat that smothered it as she went back to riding him.

''M-Miss Mobius, I'm, ah, I'm- o-oh shit!''

Mobius dropped herself down his cock just as he plunged up into her – and squeaked as a thick rope of heat shot deep inside her. The realisation that he was finally cumming sent a shudder running through the serpentine woman, her insides tightening around his meat as she jammed herself down onto him faster, milking his dick for as much as she could – and at last the friction granted her her own release, a stiff hiss fleeing Mobius's pursed lips as she came; strangling his dick in the same moment, extracting every last drop of cum.

The orgasmic rush lingered in her muscles even as her the blissful fog in her mind waned; her muscles taking their time to relax. When they did a wave of pleasure followed, coaxing a mewl out of Mobius as she laid herself down atop the young man, snuggling herself into his body heat and nestling her face in the crook of his neck. He smelled nice, she idly noted; rubbing her nose into one part where his scent was the strongest.

''Uhh... Miss Mobius?''

Mobius's eyes snapped open as she remembered where she was and she hurriedly sat upright, coughing. ''A-Ahem. You saw nothing.''

''But were you just smelling-''

''Saw. Nothing.'' Mobius's harsh glare silenced any protests.

''Uh, right. Saw nothing.''

Mobius kept up her intimidating glare for several moments, a faint green light to her pupils, before with a huff she ceased and glanced off to the side – refusing to acknowledge the red tint to her cheeks. However she was a woman of her word and so dutifully crawled over and detached the restraints keeping the young man pinned before sitting by his feet with legs folded; unbothered by her nude state. She was more comfortable in her own skin than in clothes, anyway.

''So uh... what now?'' The young man asked – clearly embarrassed by both her nudity and his own.

''Hm...'' Mobius made a show of thinking about it, but in truth her eyes were soon drawn south to his still-erect cock. ''Why don't you... take your reward, lab rat?''

Any questions about what that could be were silenced as Mobius smirked and leaned back; laying herself flat on her back. The hard surface of the examination table wasn't the most comfortable of places for sex but she didn't mind; retaining her smirk as she spread her legs apart and let him gaze upon her creampied pussy, a thin trickle of his seed leaking from her nether lips. With her medium-sized breasts heaving with every deep breath and her sultry gaze fixated on him, and the young man caved in seconds.

Wordlessly he shifted closer, nudging her slender legs apart as he got between them. Mobius offered no protest, curious to see how he would take to being the dominant one – her excitement rising as she felt him fumble with his cock, rubbing it along her sex but not quite getting it in. He tried to pass it off as teasing her but Mobius saw through it easily, however she allowed it; taking pleasure in the near-misses that pushed his cock along her slit.

Until soon he got it in, and with a deep moan the young man claimed her. ''O-Ohh... you're so tight...''

''How vulgar.'' Mobius coyly fired back, snaking her slender arms around his neck and pulling him down. ''Now take me as if this is the last time we will meet, my dear lab rat~''

The young man didn't disappoint. In a heartbeat the nameless young man closed the distance and mashed his mouth against her own, devouring Mobius's horny moan as he started to thrust – pumping his cock into her with short, quick thrusts, the swollen head bumping up against her innermost parts and rubbing against that one spot that felt heavenly. Whether he noticed that fact or not the young man kept up the pace, hilting in her twice a second.

Breaking off the kiss for air the young man slid one hand up to her chest; groping her left breast eagerly. While she wasn't as busty as she once was he didn't seem dissatisfied in the slightest; manhandling her tit eagerly and sliding his other arm under her back, pulling her stomach flush against his own. Mobius mewled and responded by burying her face into his neck, dragging her teeth along his flesh and breathing onto his skin, tempting him with what she might do.

Then when he least expected it she bit him. Not too deep, just enough to leave a hickey, but making the young man grunt then groan all the same. She licked and kissed the hickey better but Mobius swiftly marked him a second time, then again, and again after that – leaving a trail of love-bites along his neck and shoulder. The young man responded by thrusting into her wet sex harder, his grunts taking on a more guttural undertone as he stuffed himself in her, fucking her with desperate lust.

''Mm... ah, that's it~'' Mobius happily moaned, snaking her lithe fingers through his hair. ''Harder now, lab rat- mm!''

Mobius got her wish nigh-instantly; the young man plundering her pussy with every hurried thrust of his hips. The sound of smacking flesh positively echoed off of the tiled walls of her laboratory, ringing in her ears and fuelling the pleasant heat in her crotch – amplified further when his crotch pressed against hers, grazing her clit slightly. It was more ticklish than a rough rub but it made Mobius moan all the same, her lips soon finding his and drawing them both into a kiss.

One that they broke off quickly, the need to breathe forcing it. Mobius was relentless though and pulled him down into another kiss, her tongue invading his mouth and quickly getting into a tongue-wrestling contest with him. She dominated him easily, exploring his mouth with impunity and wrapping her legs around his waist at the same time, preventing him from pulling out even if he wanted to. A fact that the young man didn't miss; moaning into her mouth as he pounded her harder, faster, rougher.

''Mmph~! Yes~!'' Mobius hissed and nipped his bottom lip, his cock thundering up into her so hard it felt like he was punching her stomach; knocking the air out of her lungs. ''Don't you dare stop now...!''

Rather than speak the young man just grasped her wrists and pinned them to the table, ramming himself into her desperately – his thick, pulsating member sliding between her clenching walls, the friction reaching a burning, blissful apex that knocked the air out of her lungs – and Mobius clenched her hands into fists as she reached her peak, crying out in ecstasy as he hilted in her at the exact same moment; splattering her insides with a second helping of his seed. He didn't move, just stayed deep within her, but Mobius was too lost in her own pleasure to even notice. Shocks and spasms twitched through her muscles, left her jaw stiff and lips ajar, her mind momentarily fried-

-until with a soft, satisfied moan the serpentine woman relaxed back against the lukewarm examination table, panting heavily. ''Ah... hah... mm~''

The young man groaned in agreement, his weight resting atop her and practically squishing her, but Mobius found herself rather liking it – not least because his body was so warm, allowing her to cuddle into him in the afterglow. Though his scent was enticing she restrained the urge to sniff lest she embarrass herself more, opting instead to just rest her eyes for a few moments.

''You know.'' She murmured lightly. ''I would not be opposed to you returning here, after the night has passed. You've performed... more than adequately, my dear lab rat.''

''Is sex on the menu, or dissection?'' He questioned.

At that, Mobius nipped his neck – and then kissed it better.

''Well, you'll have to come back to find out, hm~?''

[END]

A/N: Not sure where the smell/scent kink came from, but as I wrote it felt fitting for Mobius.