Chapter 1

I’m Chris, just turned 16, and my life’s been a fucking whirlwind lately. Junior year of high school, a new town, new house, new everything. My mom just got divorced from my deadbeat dad, and now it’s just me, her, and my twin sister Jess in this quiet suburban neighborhood. The moving truck was barely unloaded when I caught sight of her—our neighbor across the street. A blonde bombshell, maybe in her mid-20s, with curves that could stop traffic and a slightly dazed look in her blue eyes like she’s always a little lost in her own world. She was watering her garden in a tight tank top and cutoff shorts, her tan legs glistening with sweat under the afternoon sun. My teenage hormones were already raging before I even stepped foot in this town, but seeing her? Fuck, I knew I had to say hi.

I crossed the street, my sneakers crunching on the asphalt, my palms sweaty as I tried to think of something cool to say. Up close, she was even hotter. Her top clung to her full, perky tits, and I could see the faintest outline of her nipples through the fabric. Her shorts were so tiny I swear I caught a glimpse of the bottom curve of her ass as she bent over to adjust the hose. ‘Hey, I’m Chris, just moved in across the street,’ I managed to stammer out, my voice cracking like a little bitch. She turned, flashing me a bright, ditzy smile, her glossy lips parting as she giggled. ‘Oh, hi! I’m Mandy! Welcome to the neighborhood, cutie!’ Her voice was high-pitched, almost cartoonish, but it sent a jolt straight to my crotch.

We chatted for a bit—well, mostly she rambled about her flowers and how she keeps forgetting to water them on time. I was half-listening, too busy staring at the way her tits bounced slightly with every animated gesture. Then, out of nowhere, I felt a sharp tickle on my leg. I glanced down just in time to see a fucking wasp zip up the leg of my loose basketball shorts. Before I could swat it away, the little bastard stung me—right on the tip of my dick. ‘Fuck!’ I yelped, doubling over, my hands instinctively grabbing at my crotch. The pain was unreal, like someone had jammed a hot needle into my most sensitive spot. Mandy’s eyes went wide, her hands fluttering in panic. ‘Oh my gosh, are you okay? What happened?’

I could barely speak through gritted teeth. ‘Wasp ... stung me ... down there.’ Her face turned bright red, but her concern seemed genuine. ‘Oh no! That’s, like, super bad! Come inside, I’ve got some ointment or something. We gotta take care of that!’ I hesitated, the idea of this hot chick tending to my stung cock both mortifying and thrilling. But the pain was getting worse, a throbbing burn that made my vision blur, so I nodded and hobbled after her into her house.

Her living room smelled like vanilla and lavender, all pastel decor and fluffy pillows. She sat me down on her couch and rummaged through a drawer for some first-aid stuff. ‘Okay, um, you’re gonna have to, like, show me where it stung you. I promise I won’t laugh or anything!’ she said, her cheeks pink. My face was on fire with embarrassment, but the pain was unbearable. I unzipped my shorts with shaky hands, pulling them down just enough to free my cock. Holy shit, it was already swelling up, twice its normal size, the head an angry red and pulsing with every heartbeat. Mandy gasped, her hand flying to her mouth, but her eyes were locked on it, wide and unblinking. ‘Oh my gosh, it’s ... it’s huge!’ she whispered, almost to herself.

I expected her to grab the ointment, but instead, she dropped to her knees in front of me, her soft hands gently pushing my thighs apart. ‘I read somewhere that, like, sucking out the venom can help with stings. I think I should try that. Just to be safe, okay?’ Her voice was breathy, her pupils dilated as she stared at my swollen cock. My brain short-circuited. Was this really happening? Before I could even process it, her warm, wet mouth enveloped the head of my dick, her tongue swirling around the sensitive tip where the sting was worst.

Fuck, the sensation was indescribable. The pain was still there, sharp and throbbing, but it mixed with this insane pleasure as Mandy sucked me off like she was starving for it. Her lips were so soft, stretching wide to take more of my swollen shaft, her tongue lapping at the underside with sloppy, eager strokes. I could feel every inch of her hot mouth, the way her cheeks hollowed out as she sucked harder, her hands gripping my thighs for leverage. My head fell back against the couch, a guttural moan escaping my throat. ‘Holy shit, Mandy ... that feels so fucking good,’ I groaned, my hands instinctively tangling in her blonde hair, guiding her deeper.

She hummed around my cock, the vibrations sending shocks of pleasure through my entire body. I could feel the pressure building fast, way faster than normal, like my balls were about to explode. My dick was so swollen it felt like it was stretching her mouth to its limit, but she didn’t stop, bobbing her head up and down, spit dripping down her chin as she worked me over. The pain from the sting started to fade, replaced by this raw, primal need to cum. ‘Fuck, I’m gonna—’ I didn’t even finish the warning before I erupted, shooting rope after rope of thick, hot cum down her throat. It was way more than I’d ever cum before, like my body was purging something unnatural. Mandy gagged a little but kept swallowing, her throat working to take it all, until finally, she pulled back, gasping for air, a string of my cum still connecting her lips to the tip of my cock.

I was panting, my chest heaving, but the pain was gone. My dick, though? Still fucking massive, still rock hard, standing proud like it hadn’t just unloaded a gallon of jizz. Mandy wiped her mouth with the back of her hand, her eyes glassy with lust. ‘Wow, that was ... intense. But, like, I don’t think all the poison is out yet. We should probably, um, try something else. Just to be sure.’ Her voice was husky now, her hands already tugging at her tank top, revealing the lacy pink bra underneath. My jaw dropped as she stood up, shimmying out of her shorts to reveal matching panties, already soaked through with her arousal.

She climbed onto my lap, straddling me, her hot, wet pussy grinding against my swollen cock through the thin fabric of her underwear. ‘I think fucking might help get the rest out,’ she purred, her hands sliding under my shirt to feel my chest. I was still in shock, my teenage brain unable to process that this was real, but my body was on autopilot. I gripped her hips, feeling the soft, warm flesh under my fingers, and nodded like a dumbass. ‘Yeah, let’s ... let’s do that.’

She pulled her panties to the side, revealing her glistening, shaved pussy, the lips puffy and pink with need. I could smell her arousal, sweet and musky, and it made my cock twitch even harder. She lined herself up, the head of my dick pressing against her tight entrance, and slowly sank down, taking me inch by swollen inch. Holy fuck, she was tight, her walls gripping me like a vise, stretching to accommodate my unnatural size. I could feel every ridge, every pulse of her pussy as she moaned above me, her head thrown back, her tits bouncing in that lacy bra as she started to ride me.

The sensation was overwhelming. My cock felt hypersensitive, every movement sending sparks of pleasure-pain through me, like I was still swollen from the sting but in the best fucking way. I thrust up into her, meeting her rhythm, my hands digging into her ass as I pulled her down harder. ‘Fuck, Mandy, you’re so tight,’ I growled, my voice deeper than I’d ever heard it. She whimpered, her nails scratching at my shoulders. ‘Oh my gosh, Chris, you’re so big ... it’s filling me up so good!’ Her words drove me wild, my hips bucking faster, the sound of our bodies slapping together filling the room along with her high-pitched moans and my grunts.

I could feel another orgasm building, impossibly fast, my balls tightening as her pussy clenched around me. She was close too, her movements erratic, her moans turning into desperate cries. ‘I’m gonna cum, Chris! Fuck, I’m gonna—’ She cut off with a scream, her body shuddering as she came, her juices flooding around my cock, making everything even slicker. That pushed me over the edge, and I exploded inside her, pumping load after load of cum deep into her pussy, more than I thought possible after already cumming once. We collapsed together, sweaty and panting, my dick still hard inside her as she rested her head on my chest.

After a few minutes, she slid off me, both of us a mess of cum and sweat. ‘I think ... I think that did it,’ she giggled, her ditzy tone back, though her eyes were still hazy with satisfaction. I pulled my shorts back up, my cock still swollen and aching, and muttered a thanks, my mind a fucking mess. What the hell had just happened? I stumbled out of her house, the afternoon sun blinding after the dim light of her living room, and made my way back across the street to our new place.

My mom and Jess were still unpacking, oblivious to the fact that I’d just had the wildest experience of my life. I mumbled something about needing a nap and dragged myself upstairs to my new room. It was bare, just a mattress on the floor and boxes stacked against the wall, but I didn’t care. I collapsed onto the bed, staring at the ceiling, trying to wrap my head around everything. A wasp sting had turned my dick into a monster, and my hot neighbor had just sucked and fucked me like it was her life’s mission. This wasn’t normal. None of this was fucking normal.

Just thinking about it—her mouth on me, her tight pussy squeezing my cock—got me hard again. My shorts were tented, my swollen dick throbbing with need, even after two massive orgasms. What the fuck was wrong with me? I’m a horny 16-year-old, sure, but this was next-level. I couldn’t ignore it, the pressure was too much. I shoved my shorts down, my huge cock springing free, still red and pulsing like it was begging for release. I wrapped my hand around it, barely able to close my fingers around the girth, and started stroking, slow at first, then faster as the memories flooded back.

I could still feel Mandy’s lips, her tongue, the way her pussy clenched around me when she came. My hand moved faster, slick with precum, the friction almost painful but so fucking good. I imagined her bent over in front of me, her round ass in the air, begging me to fuck her again. My breath hitched, my hips bucking into my fist as I pictured slamming into her, hearing her moan my name. ‘Fuck, Mandy,’ I groaned under my breath, my balls tightening as I neared the edge. It didn’t take long—maybe a minute or two—before I was cumming again, thick ropes of jizz shooting across my stomach, more than I’d ever seen, even after everything earlier.

I lay there, panting, my hand sticky, my cock still half-hard and twitching. This wasn’t right. Even for a teenage guy, this level of horniness, this much cum, this constant need—it wasn’t normal. Something was up with me, something tied to that fucking wasp sting. I cleaned myself up with an old t-shirt, my mind racing. What the hell was happening to my body? And how was I supposed to deal with this in a new town, a new school, with my mom and sister right downstairs?

I lay there on my mattress, my chest still heaving from the intense orgasm I’d just had, my mind a chaotic mess. My cock was finally starting to soften, but the lingering ache and the sheer volume of cum I’d just shot had me freaked out. What the hell was happening to me? Was it just the wasp sting, or was there something else at play? Maybe some weird allergic reaction jacking up my hormones? Or hell, maybe that wasp was carrying some freaky mutant venom. I had no fucking clue, but I knew I couldn’t keep this bottled up. I needed to talk to someone, and the only person I trusted enough was Jess, my twin sister. We’d always been close, shared everything growing up, but this ... this was a whole new level of awkward.

I pulled my shorts back up, wiped the sweat off my brow, and headed downstairs. Mom was in the kitchen unpacking boxes, humming to herself, so I slipped past quietly. Jess was in her room across the hall from mine, door half-open, sprawled on her bed with her phone in hand. She was wearing a tight crop top that showed off her flat stomach and a pair of tiny pajama shorts that barely covered her ass. I’d never really noticed her like that before, but something about the way she looked up at me with a sly grin made my stomach flip. ‘Hey, big brother, you look like you’ve seen a ghost. What’s up?’ she teased, sitting up and crossing her legs, her shorts riding up even higher. Her tone was flirty, playful in a way it hadn’t been before, and it threw me off. Was I imagining it, or was she looking at me differently?

‘Uh, hey, Jess ... can we talk? Like, privately?’ I mumbled, rubbing the back of my neck, my face already heating up. She raised an eyebrow, smirking. ‘Ooh, sounds serious. Come on in, close the door. I’m all ears ... or, well, all something.’ She giggled, patting the bed next to her. I hesitated but sat down, the mattress dipping under my weight. Her room smelled like her coconut body lotion, sweet and tropical, and it wasn’t helping my already scrambled brain. I took a deep breath, trying to figure out how to even start this conversation. ‘So, uh, something weird happened today. Like, really weird. And I don’t know who else to tell.’

Jess tilted her head, her hazel eyes sparkling with curiosity. ‘Spill it, Chris. You know I’m not gonna judge. What, did you get caught jerking off or something?’ She laughed, nudging my shoulder, but her touch lingered a little too long, her fingers brushing down my arm. I swallowed hard, my throat dry. ‘No, it’s ... worse. Or, uh, weirder. I got stung by a wasp. Down there.’ I gestured vaguely to my crotch, my face burning. Her eyes widened, but then she burst out laughing, covering her mouth. ‘Oh my God, seriously? That’s hilarious! Wait, are you okay? Like, is it bad?’

I shifted uncomfortably, avoiding her gaze. ‘It’s ... swollen. Like, really swollen. And, uh, some other stuff happened. With the neighbor. Mandy. She ... helped me out. A lot.’ I couldn’t bring myself to say the details, but Jess’s expression changed, her laughter fading into something else—something intense. ‘Helped you out how, exactly?’ she asked, her voice lower, almost husky. I couldn’t look at her, my hands fidgeting in my lap. ‘She, uh, thought sucking out the venom might help. And ... more. I don’t know what’s wrong with me, Jess. I’m not normal right now. I’m hornier than I’ve ever been, and it’s not going away.’

There was a long silence, and I finally glanced at her. Her cheeks were flushed, her lips parted slightly, and her eyes were locked on me with an intensity that made my cock twitch despite everything. ‘That’s ... wow, Chris. That’s insane. But, like, are you sure all the poison is out? Maybe there’s still some left. Can I ... can I see it? Just to check?’ Her voice was soft, almost pleading, and I froze. My sister, asking to see my dick? This was crossing a line I never thought we’d approach, but the way she was looking at me, the heat in her gaze, it was fucking with my head. ‘Jess, I don’t know if that’s—’ I started, but she cut me off, scooting closer, her hand resting on my thigh. ‘Come on, I’m just worried about you. Let me help. Please?’

My resolve crumbled under the weight of her stare and the throbbing need still lingering in my shorts. With a shaky breath, I nodded, pulling my shorts down just enough to free my cock. It was still swollen, twice its normal size, the head red and glistening with leftover precum. Jess’s breath hitched, her eyes going wide as she stared at it, transfixed. ‘Holy shit, Chris ... it’s huge. Like, really huge. I think ... I think there might still be some poison in there. I can help get it out, if you want.’ Her voice was barely a whisper, her hand hovering near my shaft, waiting for permission. My mind screamed that this was wrong, so fucking wrong, but my body was screaming louder. ‘Okay,’ I croaked, my heart pounding in my chest.

Jess didn’t hesitate. Her soft, warm hand wrapped around my cock, her fingers barely able to close around the girth, and she started stroking slowly, her touch tentative at first but growing bolder with each pass. ‘Fuck, it’s so thick,’ she murmured, almost to herself, her eyes locked on my dick as she worked me. The sensation was electric, different from Mandy’s mouth or pussy but just as intense. Her hand was smooth, gliding over my swollen shaft with just the right pressure, her thumb brushing over the sensitive tip every few strokes. I groaned, my head falling back, my hips twitching involuntarily as she picked up the pace. ‘Does that feel good, Chris?’ she asked, her voice dripping with a mix of curiosity and lust. ‘Fuck, yeah, Jess ... don’t stop,’ I gasped, my hands gripping the bed sheets.

She kept going, her strokes faster now, her other hand cupping my balls gently, rolling them in her fingers like she was experimenting. I could feel the pressure building, the familiar tightness in my core, but it was different this time—more taboo, more forbidden, and that only made it hotter. ‘I’m gonna cum, Jess,’ I warned, my voice strained, and she didn’t pull away. Instead, she aimed my cock toward her, her face and chest right in the line of fire. ‘Go for it,’ she whispered, and that was all it took. I exploded, thick ropes of cum shooting out, splattering across her face, dripping down her chin, and soaking the front of her crop top. It was a fucking mess, more than I thought possible after everything today, and Jess just giggled, wiping a glob of cum from her cheek with a finger and popping it into her mouth. ‘Wow, that’s ... a lot,’ she said, grinning.

She tugged her now cum-soaked shirt over her head, using it to wipe her face, revealing a lacy black bra that barely contained her perky tits. My cock, still hard as a rock despite just cumming, twitched at the sight. Jess noticed, her eyes darkening with lust. ‘Still hard, huh? I think there’s more in there. Let me try something else.’ Before I could protest—not that I wanted to—she leaned down, her hot breath ghosting over my cock before her lips wrapped around the head. Holy fuck, my sister was sucking me off. Her mouth was warm and wet, her tongue swirling around the tip, tasting the leftover cum as she took me deeper. I groaned, my hands tangling in her hair, the guilt and pleasure warring in my mind as she bobbed her head, her lips stretching wide to accommodate my swollen size.

She wasn’t as experienced as Mandy, but fuck, the taboo of it made every sloppy suck feel like heaven. Her hand worked the base of my shaft while her mouth focused on the head, her tongue flicking over the slit, drawing out moans I couldn’t hold back. ‘Fuck, Jess, that’s so good,’ I grunted, my hips bucking slightly, pushing more of my cock into her mouth. She hummed around me, the vibrations sending shocks through my body, and I could feel another orgasm building already. But she pulled off with a pop, smirking up at me, cum and spit glistening on her lips. ‘Not yet. I’ve got an idea.’

She adjusted herself, her hands pushing her bra straps down to free her tits, round and perfect with hard pink nipples that made my mouth water. Then she went back down, this time sucking one of my balls into her mouth, her tongue rolling over it while her hand jerked me off. The dual sensation was fucking unreal, the wet heat of her mouth on my sensitive sack and the tight grip of her hand on my cock driving me insane. She switched to the other ball, sucking gently, her hand never stopping, and I could barely breathe from the intensity. ‘Jess, I’m gonna cum again,’ I warned, my voice hoarse. She pulled back, opening her mouth wide, sticking her tongue out as a target, her eyes locked on mine with a wicked gleam. ‘Give it to me, Chris.’

That was it. I erupted, cum shooting straight into her waiting mouth, filling it until it spilled over her lips, dripping down her chin and coating her bare tits in thick, white streaks. It was obscene, the sight of my sister covered in my jizz, but I couldn’t look away, my cock pulsing with aftershocks as she swallowed what she could, licking her lips with a satisfied hum. ‘Damn, you’ve got a lot in you,’ she said, giggling again, her fingers trailing through the cum on her chest like it was nothing. I was panting, my mind a haze of guilt and satisfaction, but my cock was still half-hard, still aching. What the fuck was wrong with me?

Jess sat back, grabbing her shirt to wipe herself off, her bra still pushed down, her tits glistening with my cum. ‘I’ll help out anytime, you know,’ she said, her voice playful but with an edge of seriousness. ‘Maybe next time I’ll practice deep-throating. Gotta get better at handling that monster.’ She winked, and I felt my face burn hotter than ever. I mumbled something incoherent, pulling my shorts back up and stumbling out of her room, my legs shaky. I needed to think, to figure out what the hell was happening to me, but all I could focus on was the image of Jess, covered in my cum, promising more. This was fucked up, beyond fucked up, but deep down, I knew I’d let her help again if she offered.

After stumbling out of Jess’s room, my head was a fucking mess. My heart was still pounding, my cock still tingling with the aftershocks of what had just happened. I couldn’t stay in the house, not with her just across the hall, not with the memory of her cum-covered tits burned into my brain. I needed air, needed to think, needed to figure out what the hell I was going to do about this fucked-up situation with my own sister. So, I grabbed a hoodie, muttered something to Mom about going for a walk, and bolted out the door into the cool evening air of our new neighborhood.

The streets were quiet, the kind of suburban silence that feels almost eerie after the chaos in my head. I walked aimlessly, hands stuffed in my pockets, trying to sort through the guilt and the lust warring inside me. Should I tell Jess we can’t do that again? Should I just pretend it didn’t happen? Or ... fuck, should I let it happen again? Every time I thought about her mouth on me, her hands, her promises to practice deep-throating, my cock twitched, and I hated myself for it. I was so lost in thought I almost didn’t notice the car parked a few houses down, trunk open, two women unpacking groceries under the glow of a streetlight.