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Chapter 10
by FlatCap90210
Is Robin going to find someone to do that?
Oh, absolutely.
(Warning, things get a bit rougher in this one. Just in case you're not into that kinda thing.)
"Come into my parlor, said the spider to the fly..." Robin purred, her full, blood-red lips brushing against the ear of the maintenance worker she'd snared in her web. The dim lights of the tunnels under the main hospital made the thin strands almost invisible, so the man had walked straight into them. "Come into my parlor... And fuck my brains out."
"Ahwhawhawhat?" The man shivered and twitched, trying in vain to free himself from the sticky web, threads stronger and more flexible than steel holding him with ease. "Who...?!"
"Just a horribly underfucked spider girl, that's all~..." Hanging upside down from the ceiling, Robin nibbled on the tip of the worker's ear, feeling it heat up as her slender, chitinous hands caressed his chest. "And you're the lucky guy who's going to change that."
"I'm--I'm what?!"
"My god, you need to calm down and listen to what I'm saying." Robin rolled her eyes as she skittered sideways, head staying next to her prospective partner's as Robin moved her body from the ceiling to a more traditional standing position on the floor. "Me: horny as fuck with an empty pussy. You: with a cock and no way out."
Pressing her human torso against the maintenance worker, Robin rubbed her shapely bust against his back as her pedipalp legs wrapped around his waist, finding his crotch just as a bulge began to form in reaction to the twin softness against his back. Robin smiled - this was going exactly as planned. She'd left her room as in a scant few hours, the hubbub of the day would start, which was certainly not conducive to hunting herself a man or anyone else with a dick, carefully making her way into the underbelly of the hospital before weaving a net and then hiding inside the duct-work of the ceiling. And the first specimen walking into her trap was not only alone, but a hunk to boot.
"I can feel you growiiiing~!" Licking her partner's strong jawline languidly, Robin stroked his bulge with her pedipal legs, making him shiver lustfully, the involuntary movement echoed by the spider girl. The worker was getting big. "Can't wait to try out my virgin spider pussy, hmmm~?"
"Oh god...." The man groaned, hips bucking as his cock throbbed and swelled, his struggling weakening as his lust grew stronger. "You... you're one of these heterothings, right? Oh fuck! The ones tha-that--hnnnh~..."
"Oooh, what gave me away, hmm~?" Pushing one pedipalp leg into the worker's waistband, Robin raised one of her hands to trace her partner's cheek with a chitinous claw. "My big ol' tiddies? My pretty spider arms? Or..."
In the blink of an eye, Robin had pulled back from the worker and used four of her eight spider legs to first rip him free, turn him around and then attach him to the shreds of her web, leaving him to hang spread-eagled in the air, seeing Robin in her entire glory for the first time. To his credit, he didn't panic or even stare at the drider's black, shiny abdomen. Less to his credit, that was only because he stared at her bare tits.
"Or the fact that I'm ravenously horny and am gonna fuck you? Right now, right here?"
"I... I mean, I'm not against the idea, but is the web really--"
"Yes. Now shut up and let a spider girl work."
Skittering forwards, Robin pulled the man's face - whose nametag identified him as Daryl, now that he was facing the spider woman - between the magnificient orbs of her breasts while her nimble pedipalps unzipped his pants. Immediately, Daryl's bulge became a lot more pronounced, only held back by his boxers. The heat of Daryl's throbbing rod made Robin shiver in anticipation, pussy juices dripping down to the concrete floor as she felt her insides churn with desire. The drider's nipples pulsed lustfully as she rubbed her sodden cleft against her partner's thick, veiny cock, intent on building her arousal. Daryl clearly had less patience: Bucking his hips and renewing his struggle, he tried to speed things along, but to no avail. This was going to go all according to Robin's terms.
"Excuse me, why do you think I strung you up like that?" Although lust clearly tinged her voice, the spider girl pulled back from Daryl, even as she pulled his pants and boxers down with her pedipalps so his fat prick could spring free. "Don't worry, we're getting to the fun part soon enough!"
As she stroked Daryl's swollen member gently using her pedipalps, Robin pushed up his shirt, revealing a well-muscled, if a bit hairy physique. Licking her lips, the spider girl moved closer again, smooth chitin stroking velvety cockflesh while her hands played with Daryl's pronounced pecs. Finally, with her breasts pushing against her partner's torso and her pedipalps on his straining rod, Robin planted a kiss on the side of Daryl's neck - and a pair of fangs hidden in her upper jaw shot forwards, pricking his skin ever so slightly to inject a very special kind of venom.
"Ow! The fuuuurgh~..."
The effects were almost immediate as Daryl's hammering heart pumped the venom through his body. Muscles twitched as Daryl's jaw went slack, every vein on his body bulging - but nowhere as much as on his turgid member. Already desperately hard, it now swelled even more, turning a powerful red as Robin delicately traced the course of the throbbing veins with her pedipalps.
"Mh-hmm~, ribbed for her pleasure~..." Licking up a tiny trickle of her venom from her lips, the spider girl straightened and put her arms on Daryl's shoulders, pedipalps aiming his still thickening cock at her dripping snatch. "My pleasure that is."
Pleasure that became evident in a deep, throaty moan when Robin finally impaled herself on Daryl's iron-hard pole, pedipalp legs once again wrapping around his hips to pull him even deeper into the spider girl. All eight of Robin's blade-like legs twitched and scratched over the concrete floor, unsteady and barely keeping her standing as she tried to get used to the sensations of being filled for the first time. Her head lolling back, Robin could only gasp breathlessly, plump lips pulled into an 'O' that was equal parts surprise and bliss. How could she be feeling so full?! And thanks to her venom, Daryl was still growing bigger, more and more blood pumping into his heavily pulsing member.
"My co--my cock!" Gasping and bucking his hips against the resistance of Robin's web, Daryl gasped and groaned as his increasingly massive rod stretched the spider girl every wider. "What'd you dooo~?!"
"Well, c-considering what's happening--oooh yeah!" Grinding the hips of her human torso against her partner, Robin slung her slender arms around Daryl's neck, luxuriating in the waves of pleasure running through her entire body. "My venom's apparently an a--aaah! Aphrodisiac. Makes you hard and big and horny whenever I need a fat cock inside of me-meee~!"
"God fucking d-damn! You're so damn tight, bit--" Before Daryl could finish the swear, Robin had pressed her lips onto his, her fangs biting once more. "Uooorgh!"
"Use that word again, and I'm giving you another dose. I'm fucking you!" To drive her point home, Robin ran her chitinous claw down Daryl's torso, tearing his shirt to pieces while barely scratching his skin. "Your dick is mine, you--you hear? My fucktoy! You're just lucky you're the life-support for my current favorite dildo!"
Daryl's only reply was a feral groan as he twitched and desperately tried to thrust, mind overwhelmed by venom-enhanced sensations as Robin straightened the legs of her spider body to lift her human torso upwards, a heartfelt moan rising from her lips as inch after inch of cock slid out of her, definitely more than had gone in. The red of Daryl's swollen cock had deepened with the second dose, almost turning purple, the added girth stretching Robin to her limit - and the spider girl relished every second of it.
"Yes, yes, yes! This is exactly wh-what I needed!" Slamming back down until her hips smacked into Daryl's, Robin pulled herself back up, arms and pedipalps holding onto her prey. "A huge! Fucking! Dick! Inside o-of me!"
It didn't take long for Robin to speed up, loud gasps filling the tunnels as Daryl's straining rod knocked the air out of the spider girl when it filled her to the brim. Moaning breaths followed when Robin lifted herself again, anticipation building together with the aching emptiness inside of her, only to drop back down and be filled once more, heaving breasts bouncing freely as they brushed against Daryl's now bare front, the extra stimulation to Robin's stiff nipples more than welcome. Gyrating her hips to grind her pussy and fiercely erect clit against her partner, Robin shot a wild grin at his face with the slack jaw and the unfocused eyes.
"You're into this, huh? Me taking control, u--uuhnn~, using you for my pleasure?"
"Yuh-yuuuarnh~..." Daryl's arms had gone slack, no longer pulling at the web holding him, only his hips still bucking and thrusting as much as he was able to. "Feelssogooood~..."
"'Course it does, that's some superior spider pussy you're sticking your dick into!" Robin's grin widened, showing teeth that were just a little too sharp to be human while she kept bouncing up and down, panting and moaning between words. "Oh fuck yes! You better ho-hold on, I'm gonna ride you 'till you blow!"
Daryl already looked like he was about to blow his load, but Robin didn't care, using her spider body to move her human torso up and down, support the gyration of her hips, do everything to enhance her sensations, riding the waves of pleasure ever higher until she climaxed with a jubilant scream Daryl's trembling rod jammed deep inside her, shuddering and twitching as her pedipalps hugged her partner's hips tightly and her claws scratched his shoulderblades.
"Tha's wha' I'm talking about..." Panting and slurring her words, Robin nevertheless immediately began to move again on shaky legs, embracing her new life as an insatiable spider slut. "Came so hard... An-and you're so hard, too..."
"Hnnrgh... g-getting close... hard to... hard to cumm~!" Daryl's eyes had rolled up in his head, jaw slack as he groaned and trembled, veins pulsing with his heartbeat. "Gotta.... gotta... ghg..."
"No worries, I'm gonna turn things up a n-nnnotch," Robin grinned, immediately putting actions to words by rapidly thrusting her hips back and forth, pounding herself on Daryl's cock. "Not gonna break my favorite dildo on the first run!"
Daryl simply groaned helplessly, entirely limp and weak except for the one important part of his body which twitched and strained, squirting pre into Robin's depths as she panted with exertion and lust, tits jiggling as her bladelike legs scratched over the floor. One of her pedipalps moved down from Daryl's hips, hooking around his leg to tease his roiling nuts, feeling them contract and rise up against his pelvis, but no hot seed exploded into the spider girl. Yet.
Putting her chitinous claws onto Daryl's pecs to play with his nipples, Robin planted a deep kiss on her partner's lips, tongue dipping into his mouth and tasting the faint remnants of the spider girl's venom where she had bitten him. Again, Daryl's balls twitched and rose, but only a thick stream of pre squirted into Robin's snatch. Of course, Robin was getting a bit annoyed by her favorite toy refusing to fill her up.
"C'mon, c'mon, give me your fucking cum!" Growling fiercely, Robin rapidly gyrated her hips, her enormous bosom pressed against Daryl's chest. "Fill me the fuck up!"
That finally did the trick. Well, that and a lot more thrusting, impaling herself on Daryl's cock, taking him as deep as he would go, but in the end, Robin felt her partner lurch mightily within her, and finally blast thick globs of cum into her, which her body eagerly gobbled up without wasting a single drop. Panting, Robin clung to the sweaty form of Daryl, feeling him soften slowly, almost reluctantly, and finally, the spider girl allowed her legs to give out, stumbling backwards as she fell to the floor, once again resting on the dome of her spider half, gently caressing her smooth skin as she smirked up at the thoroughly fucked form of Daryl hanging in the middle of the tunnel, his swollen, almost purple cock dangling between his legs and dripping milky strings of cum as it grew flaccid.
"Well, next time, maybe I'll give you a third dose. Might make you last until my second nut."
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Growth-XX
A Size Matters spinoff
In Size Matters, we learned of the misadventures of Adam and his bottle of Growth-X pills. But what happens if another guy who's unhappy with his penis orders a bottle? -- Over the past two years, this story has grown to encompass all my major fetishes and then some. Expect gender bender, breast expansion, latexification, a lot of transformation and wholesome hedonism with a pinch of here and there. --
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Updated on Apr 24, 2025
by FlatCap90210
Created on May 20, 2019
by FlatCap90210
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