Swollen Desires: a New Beginning
Copyright© 2025 by GPT Writer
Chapter 4
Supernatural Sex Story: Chapter 4 - Chris is your average high schooler who just moved into a new home with his divorced mom and twin sister. While talking to his attractive neighbor, a wasp flies up the leg of his shorts and stings his dick. So naturally his dick grows to twice its size and his pheromones and testosterone to go into hyper-drive. Despite the cheesy porn-plot, its an immersive, character driven story.
Caution: This Supernatural Sex Story contains strong sexual content, including mt/ft mt/Fa ft/ft Fa/ft Mult Consensual Reluctant Heterosexual Wife Watching Incest Mother Son Brother Sister Daughter MaleDom Spanking Group Sex Orgy Anal Sex Facial Masturbation Oral Sex Tit-Fucking Big Breasts Size Transformation AI Generated
I’m late.
That’s the only thought in my head, sharp and bright and real — I’m late — and my sneakers are slapping against linoleum that stretches out longer than any hallway should. Lockers blur past on both sides, numbers I can’t read, and the bell is already ringing, except it sounds like it’s coming from underwater. Muffled. Far away and close at the same time.
I find the classroom. I don’t remember which number it is or how I got here, but I’m through the door and sliding into a desk in the back row. Rows of heads in front of me. Nobody turns around. The teacher is writing something on the whiteboard but the marker doesn’t seem to be leaving any marks.
I look down and my stomach drops.
I’m not wearing anything. No shirt, no pants, no boxers. Just skin and the hard plastic edge of the desk chair pressing against my bare thighs. I was so rushed this morning. I just forgot. That’s all. I just forgot to get dressed.
I glance around. Nobody’s looking at me. A girl two seats up is chewing the end of her pencil. A guy by the window is asleep with his chin on his fist. The teacher keeps writing invisible words. Nobody cares. Nobody notices.
Okay. Okay, I can get through this. Just get through the day.
I pull the textbook open. The pages are heavy and cool under my fingers. I try to read the first line but the letters slide sideways, rearranging themselves into words that almost make sense and then don’t. I blink and try again. The sentence reforms and scatters. I turn the page and it’s the same thing — language that keeps slipping just out of reach, like trying to hold water.
Something brushes my leg.
Warm and soft, pushing against my calf. I look down and it’s Buffy, her golden fur catching light that doesn’t seem to have a source. She’s bigger than I remember. Her tail is wagging in slow sweeps behind her, tongue out, brown eyes looking up at me the way she always did. My chest goes tight with something good and aching.
“Buffy,” I whisper, and my voice sounds like it’s traveling through cotton. “Hey, girl.”
I haven’t seen her in years. She nudges her wet nose against my knee and I reach down to scratch behind her ears, feeling the silk of her fur between my fingers. She pushes forward, sniffing, her nose pressing between my legs, and I go to push her head away gently --
But it’s not Buffy anymore.
It’s a woman. Kneeling between my legs, her hands on my thighs. The classroom is empty now. Every desk vacant. The whiteboard blank. Just me and her and the muted hum of fluorescent lights overhead.
She leans forward and her mouth is on me — warm and wet and slow — and I try to see her face but it keeps shifting, blurring at the edges like a photograph left in the rain. Brown hair, maybe. Or lighter. Her eyes flick up to mine and they’re a color I can’t hold onto. I reach for her, try to focus, try to look, but every time I almost see her she slides out of clarity again. Just a mouth. Just warmth. Just the soft muted sound of --
The dream frays at the edges first. The faceless teacher, the empty classroom, the letters sliding off the whiteboard—all of it dissolving like smoke, replaced by something warm and wet and very, very real.
My hips shift on the mattress before my brain catches up.
Someone is sucking my dick.
I groan, low and rough, still half-tangled in sleep. My fingers curl into the sheet beneath me. The mouth around me is slow, deliberate—lips sealed tight, tongue working the underside in long strokes that send heat spiraling up through my stomach. It’s not frantic. It’s not greedy. It’s patient and deep and absolutely fucking incredible.
“Jess,” I mumble, eyes still closed, voice thick with sleep. “God, that feels good.”
She doesn’t answer. Just sucks harder.
The pressure in my cock builds in a slow wave, throbbing against the swelling that hasn’t gone down since Friday. Her mouth glides lower. Lower than she’s gone before. I can feel the head pressing past the tight ring of her throat, and she doesn’t gag, doesn’t pull back—just keeps easing down, inch by inch, her lips stretching around the thickness of me like she’s been practicing this in her sleep.
My back arches off the mattress.
She’s past the halfway point now. The wet heat of her throat clenches around me and I make a sound I’ve never made before—something broken and grateful and barely human. Her hands are braced on my thighs, and she’s moving so slowly it’s almost cruel, every millimeter deliberate, like she’s memorizing the shape of me.
This is the best blowjob she’s ever given. It’s not just technique—it’s the care behind it. Like she’s trying to make love to my dick with her mouth. Every movement says I want to do this. I want to make you feel this.
And then her lips touch the base.
My eyes fly open.
Holy shit. She just took the whole thing. Every swollen inch, all the way down, her nose pressed against my skin, and she’s holding there, throat working around me in these soft rhythmic pulses that make my vision blur.
Morning light cuts through the window in pale slats across the mattress. I look down.
Light brown hair. Not dark brown. Light brown, sleep-mussed and falling across my thighs in soft waves, not pulled back in a ponytail.
It’s not Jess.
My mom’s brown eyes lift to meet mine, and even with her lips stretched around the base of my cock, even with her cheeks hollowed and flushed pink—she smiles. Or does the best version of a smile she can manage with her mouth that full. The corners of her eyes crinkle, warm and soft, and something passes between us that I don’t have a word for yet. Something that says good morning and I wanted to and let me take care of you all at once.
Then her focus drops back to what she’s doing, and I stop thinking entirely.
She pulls up. Slowly. Her lips drag along the full length of me, creating this insane vacuum seal that makes my toes curl against the sheet. All the way up to the head, tongue swirling once around the tip, cheeks hollowed so tight the suction is almost unbearable. Then back down. Slow. Relaxing her throat, letting me slide deep, deeper, all the way to the root where her lips seal around the base again.
All the way up. All the way down.
Suction on the way up. Soft and open on the way down.
Up. Down. Up. Down.
I’m moaning loud enough that I’d be embarrassed if I had any brain cells left to feel embarrassment with. My hand finds her hair—not grabbing, not pushing, just resting there, fingers threaded through the light brown strands while she works me with this slow relentless rhythm that’s turning my entire body into a live wire.
“Mom,” I manage, and my voice cracks on the word. “Mom, I’m—I’m gonna—”
Her only response is to pick up the pace.
The vacuum tightens. Her head bobs faster, each stroke pulling me closer to the edge, and I’m gripping the sheet with my free hand, knuckles white, every muscle in my body coiling—
Right at the point of no return she plunges all the way down and holds.
Her throat contracts around me. Not just the passive clenching from before—active, deliberate, her muscles squeezing and releasing in rapid pulses like she’s swallowing, and the sensation is so intense my vision whites out.
The first jet hits the back of her throat and she takes it. Doesn’t flinch, doesn’t pull back. Just swallows. Another pulse, another jet, and she gulps that down too—I can feel her throat working around me, milking every rope of cum straight down while I’m arching off the mattress making sounds that aren’t words anymore.
It keeps going. Jet after jet, my cock twitching deep in her throat, and she keeps swallowing, keeps taking it, patient and steady and thorough until I’m empty. Until there’s nothing left.
I slump back against the mattress. My whole body feels like it’s been poured out through my dick. Every muscle unclenches at once and I sink into the pillow, chest heaving, staring at the hairline crack in the ceiling.
Mom pulls up slowly. Her lips slide along the softening—well, less hard, it never actually softens—length of me until just the head is in her mouth. She sucks gently, her tongue lapping at the tip in these small careful strokes, collecting the last traces of cum. Cleaning me. Taking care of me.
I lie there panting. Too stunned to form a complete sentence. Too drained to move.
“Wow,” I finally manage.
She hums around the head of my cock, and even that small vibration makes my whole body twitch.
The door cracks open and Jess pokes her head in, green eyes sweeping the scene—Mom kneeling between my legs on the mattress, her lips still wrapped around the tip of me, my chest rising and falling like I just ran a mile.
“Ahh,” Jess says, and her face falls into this expression of genuine betrayal. “I wanted to give you morning head.”
Mom pulls off with a soft wet sound but doesn’t turn around. Just rests her cheek against my thigh, looking thoroughly pleased with herself.
“Promise me I can do it tomorrow,” Jess says, leaning against the doorframe with her arms crossed. Her green eyes are bright and sharp and already scheming.
I consider it for approximately half a second. “No.”
“What? Why not?”
“Because I don’t trust you to not mount me while I’m too sleepy to stop you.”
Her mouth drops open. Then it closes. Then the corner twitches, and she breaks into a grin that confirms everything I just said.
“Damn you,” she says, giggling. “How do you know my plans?”
For the first time since waking up, I actually look at them.
Really look.
Mom is kneeling between my legs in nothing but a thin satin robe--except she’s bunched it up around her waist at some point, which means everything above her hips is just ... out. Her breasts hang full and heavy, soft pink nipples still tight from whatever combination of cold air and arousal has been running through her for the last however many minutes. Her light brown hair is sleep-mussed, falling in messy waves across her bare shoulders. She looks like a painting someone would hang in a museum and then immediately remove because it made the security guards uncomfortable.
And Jess. Jess is leaning against the doorframe in a pair of skimpy panties and absolutely nothing else. Arms still crossed under her bare chest, green eyes bright with that scheming energy she never turns off, brown hair a tangle from last night’s shower that she clearly didn’t bother brushing before bed. The morning light from the window catches the faint tan lines across her breasts and the muscle definition in her stomach, and she looks like she belongs on the cover of something I’d have hidden under my mattress six months ago.
And the thing that hits me--the thing that actually stops my brain for a second--is that I didn’t notice any of this until right now.
The entire conversation. Mom deepthroating me into next week. Jess bargaining for tomorrow’s slot like she’s negotiating a trade deal. Me refusing her, predicting her plan, watching her laugh about it. All of that happened while two essentially naked women stood in my bedroom, and my brain just ... filed it under normal. Background noise. Like the hum of the fridge downstairs or the creak of the house settling at night.
When did this become wallpaper?
I stare at the crack in my ceiling--that thin hairline fracture running from the light fixture to the corner--and something cold and clear moves through the fog of post-orgasm bliss. This is going to be an everyday thing. Every morning. Two beautiful women, barely dressed, competing for access to me like I’m the last charger in an airport terminal. Unless I do something to stop it.
Do I want to stop it?
The answer comes faster than I expect, and it’s not the one the old Chris would have given. The old Chris would have spiraled into seventeen layers of guilt and moral inventory and ended up paralyzed on this mattress until someone physically dragged him to school. The new Chris--the one who tied his sister’s wrists with kitchen twine yesterday and spanked her until she cried and then directed both of them through the most intense sexual experience of his life--the new Chris just lets the question sit there, looks at it honestly, and thinks: No. I don’t.
“Hey, dummy. Ya gonna answer me?”
I blink. Jess has pushed off the doorframe and taken a step into the room, head tilted, one eyebrow arched.
“Oh. Sorry.” I shake my head. “Was zoned out.”
“Yeah, no shit.” She rolls her eyes. “I was asking if one blowjob is enough before we head to school. Because it looks to me like you could use one more.”
I glance down.
She’s right. Despite the epic, earth-shattering, swallow-every-drop performance Mom just delivered--the kind of blowjob that should have put me into a medically induced coma--my cock is already thickening again. Not fully hard yet, but getting there. The swelling from the venom hasn’t gone down at all. If anything, it looks bigger than yesterday, the skin flushed and tight, veins prominent along the shaft. It doesn’t hurt exactly, but there’s a pressure behind it, a heaviness that won’t go away. Like my body is operating on some schedule I didn’t agree to.
I check the clock on the floor beside my mattress. The numbers glow back at me, indifferent and absolute.
We can’t spend all morning in bed. Even though the idea of staying right here with both of them sounds approximately ten thousand times better than walking into a new high school where I don’t know a single person and every woman in a fifty-foot radius is going to start acting like Emily did in that clinic waiting room.
But the clock doesn’t care what I want.
“Tell you what,” I say, swinging my legs off the mattress and standing. The hardwood floor is cool against my bare feet. “How about you blow me in the shower while we’re getting ready.”
The sound Jess makes is not human.
“REALLY?!”
Her entire body changes. The calculated lean, the crossed arms, the careful cool--all of it vanishes in a single instant, replaced by something so genuine and unguarded it almost makes me laugh. Her green eyes go wide, her mouth drops open, and for exactly one second she looks like a kid who just got told Christmas is happening twice this year.
Then she’s moving.
Before I can reconsider, before I can attach a single condition or caveat, Jess hooks her thumbs into the waistband of her panties, shoves them down her thighs, and steps out of them in one fluid motion. She’s across the hallway in three steps, bare feet slapping against the hardwood, completely naked and not caring even a little bit.
“Hurry up!” she calls back over her shoulder, already disappearing through the bathroom door. I hear the shower curtain rattle on its rings, then the squeak of the faucet, then the rush of water hitting tile.
I stand there for a second, watching the empty hallway where she just was.
Yeah. I might have made a mistake.
I turn back to Mom.
She’s gotten off my bed, standing beside the mattress now, and she’s pulled the satin robe back up over her shoulders but hasn’t tied it. It hangs open, parted just enough that the inner curves of her breasts are visible but her nipples are barely covered--the fabric resting against them like it’s trying to decide which side of the line to fall on. Her hair is a mess, her lips are swollen and slightly pink from what she just did to me, and she’s looking at me with those warm brown eyes that have about fifteen different things happening behind them at once.
Fuck, she’s hot.
It’s not a thought I’m proud of. It’s just true.
“Mom.” I take a step toward her. “That was ... thank you. That was incredible.”
The blush starts at her collarbones and rises. Soft pink flooding up her neck, across her jaw, settling into her cheeks. She ducks her head slightly--this tiny motion, almost girlish--and a strand of light brown hair falls across her face.
“It was my pleasure,” she says. Her voice is quiet. Steady, but quiet. “Really.”
She pushes the hair back behind her ear and meets my eyes again. The shyness doesn’t disappear, but something more honest moves in underneath it.
“I came in to wake you up for school,” she says. “And you were lying there, and the sheet was...” She trails off, glances down at my cock--still thickening, still impossible to ignore--and then back up. “I couldn’t help myself. Once I saw you like that, I just--” She stops herself. Takes a breath. “I wanted to.”
There’s something important in those three words. Not I had to. Not the venom made me. Not even I don’t know what came over me. Just: I wanted to.
She’s watching my face carefully now, like she’s trying to read whether that answer is the right one or the wrong one. Whether I’m going to command her to stop or pull away or add this to the list of things we’re supposed to feel guilty about.
“Do you...” She hesitates. Her fingers find the edge of her robe and hold it. “Would you want me to? In the future? I mean, if it’s too much, or if you’d rather I didn’t--”
“Mom.”
She stops.
“Very much so,” I say.
“Chris! Water’s ready, let’s go!”
Jess’s voice cuts through the hallway, impatient and bright, and I can’t help the grin that pulls at my mouth. I turn back to Mom, who’s still standing beside my mattress with her robe hanging open, that soft blush running up from her collarbones. I step forward, cup her jaw with one hand, and kiss her. Not a quick one. Deep and slow, her lips parting under mine, her tongue warm and tasting faintly of mint and something else underneath. She makes a small sound against my mouth and her fingers find my chest, pressing there lightly.
I pull back just enough to see her eyes. Brown and shining and full.
“I love you, Mom.”
“I love you too, sweetheart.”
I kiss her forehead once more and then I’m moving, crossing the hallway naked with my cock already thickening again, which at this point doesn’t even register as strange. The bathroom door is open. Steam is curling out in thin ribbons, and I can hear the shower running behind the curtain.
I pull the curtain back and step in.
Jess is standing under the spray with her back to me, water streaming down her shoulders and the curve of her spine and running in lines over her ass. Her brown hair is slicked dark against her neck. She looks over her shoulder with that familiar tilt to her mouth, green eyes catching the light.
“Hey, stud. You gonna wash my back?”
I don’t answer right away because I’m looking at her. Really looking. The water running over the muscle definition in her stomach, the tan lines crossing her shoulders where a bikini strap used to sit, the round firmness of her ass. She’s genuinely beautiful. My twin sister is genuinely beautiful, and I’m standing here thinking it with zero hesitation.
Then my eyes drop lower and the guilt hits like a fist.
There’s bruising. Faint but unmistakable, yellowish-purple marks across the lower curve of both cheeks where my palm landed hardest yesterday. The skin looks tender, slightly raised in places. My hand, the same hand that did that, reaches out before I can think about it, fingertips brushing the edge of the bruise.
“Does it still hurt?”
Jess glances back at me. Her expression softens for half a second, something real flickering behind the bravado.
“Little tender to the touch. Doesn’t really hurt anymore.” The smirk returns. “You should kiss it better.”
I shake my head at her, but I’m smiling. Instead of answering, I reach past her and grab the body wash from the little shelf. I squeeze a generous amount into my palms, way more than necessary, and rub my hands together until the lather builds thick and slick between my fingers.
I start at her shoulders.
My hands move in slow circles, working the soap into her skin, feeling the tension in the muscles beneath. She’s tight across the top of her back, knotted from sleeping weird or from yesterday or from everything. I press my thumbs in along her shoulder blades and she lets out a breath that sounds like she’s been holding it all morning.
Down her spine. Careful along the vertebrae, spreading the lather in long smooth strokes. Over the small of her back where the muscle dips inward, then lower across both cheeks, gently, avoiding the bruised spots, feeling the firmness of her under the soap.
Then I work my way around to her front.
My hands slide over her hips, soap-slick and warm, and curve inward across her stomach. I can feel the muscle definition under my palms, the slight quiver as my fingers trace across her abs. Higher. My hands find her breasts and I cup them both, one in each palm, the firm round weight of them settling into my grip.
Jess moans.
Not loud. Low and throaty, vibrating through her ribcage and into my chest because she’s leaning back against me now, the back of her head finding my shoulder, her arms reaching up and wrapping around the back of my neck. Her wet hair presses cold against my collarbone. My cock, stiff and swollen, slides between the cheeks of her ass like it belongs there, trapped in the slick warm groove, and the pressure makes my breath catch.
I spend time here. Massaging, kneading, my thumbs circling her small pink nipples until they’re hard and standing against my palms. Making sure they’re squeaky clean. That’s what I tell myself, anyway.
Jess starts to move. Slow, deliberate rolls of her hips, sliding her ass up and down the length of my shaft. The soap makes everything frictionless and impossibly smooth, and each time she drags herself along the full length I have to clench my jaw to keep from groaning out loud.
My hands drift lower.
Across her stomach. Past her navel. Down to where the water is streaming between her legs and the heat is radiating off her in waves.
And I hesitate.
I don’t know exactly what I’m doing. Despite everything that’s happened in the last three days, the blowjobs, the orgasms, Mom’s mouth around me twenty minutes ago, I’ve never actually touched a girl here. Not like this. Not with my hands and my fingers trying to make someone else feel good. I know the theory. I’ve watched enough porn to have a general map. But the reality of my fingers hovering over my sister’s pussy while she grinds against my cock in a shower stall is different from anything a screen prepared me for.
Jess senses it. Of course she does.
Her hand drops from behind my neck and finds mine underwater, fingers lacing through my soapy ones. She doesn’t say anything, doesn’t tease me, doesn’t make a joke. She just guides. Places my fingers where they need to be, adjusts the pressure, shows me the angle with small corrections of her wrist.
There. Like that. A little higher. Circles.
She’s so wet it has nothing to do with the shower.
The moment I find the right spot, I know, because her whole body goes rigid against me. Her grip on my hand tightens and a sound comes out of her that’s half gasp, half whimper. I keep doing what she showed me, small tight circles with two fingers, pressing just hard enough, my other hand still cupping her breast.
She’s already so worked up it doesn’t take long.
Her hips buck forward into my hand and her thighs squeeze together around my fingers and she comes with her face turned sideways against my neck, mouth open, breathing hard, a sharp desperate “fuck” escaping through her teeth. I feel it happen, the clench and release, the tremor that runs through her whole body, the way her legs go weak and she sags back against me.
For a second she just breathes. Water streaming over both of us, steam thick in the air.
Then she straightens up, rolls her shoulders, and turns around to face me with water running down her chest and her green eyes lit up like someone plugged her in.
“Fuck, I needed that.” She pushes her wet hair back from her face with both hands. “Now let’s take care of you.”
She drops to her knees on the shower floor.
The water hits my back and runs in sheets over my shoulders as Jess wraps one hand around the base of my shaft and looks up at me. Her lips are parted. She leans in and takes me into her mouth.
She tries to go deep. I can feel the intent in it. She pushes forward, mouth stretching wide around my swollen cock, working her way down inch by inch until she hits the halfway point and her throat locks up. She gags, a wet, choked sound that echoes off the tile, and pulls back with spit trailing from her lips to my tip.
She tries again. Same result. Half is all she can take before her body rebels, and the gagging sound reverberates through the small space.
It’s the hottest thing I’ve ever heard.
Something about the desperation in it, the sound of her throat fighting against my size, the fact that she keeps pushing past the reflex anyway, it hits me somewhere primal. Combined with how revved up I got fingering her, the pressure builds fast. Way too fast.
I last maybe two minutes.
“Jess, I’m...”
She pulls back to my tip just as the first shot fires. My hips jerk and I’m emptying into her mouth, thick ropes of cum hitting the back of her throat as she swallows around me, her cheeks hollowing with the effort. My second load of the day and it still hits like a freight train, my hand slapping against the tile wall for balance.
The orgasm ebbs. My cock pulses the last few times, sensitive and tingling, and I expect Jess to pull off like she normally would. Release me. Stand up. Make some smart comment.
She doesn’t stop.
If anything, she starts sucking harder. Her lips tighten around my shaft and her head bobs faster, taking me as deep as she can on every stroke, tongue working the underside with flat wet pressure.
“Jess, hold on...”
The sensitivity after orgasm is insane. Every nerve ending in my cock is screaming, overloaded, the pleasure blurring into something that borders on pain. It’s too much. Way too much. I try to pull back but Jess’s hands shoot around to my ass, fingers digging into the muscle, and she yanks me forward into her mouth while redoubling her pace.
“Fuck, Jess, what’s gotten into you?”
She doesn’t answer. Can’t answer. Her mouth is full of me and she’s not slowing down. The wet slurping sounds fill the shower stall, obscene and relentless, and her green eyes are looking up at me through the spray with an expression that’s pure defiance. Pure hunger.
Something shifts in my chest.
“You’re just a little cum slut, aren’t you?”
Jess moans around my cock. Not a protest, a deep, vibrating hum of agreement that I feel all the way down to my balls. Her eyes flutter shut and she takes me deeper, gagging, not caring.
That breaks something open in me.
I put both hands on her head. My fingers sink into her wet hair, gripping tight, and I pull her forward while I thrust my hips. Not gently. I’m fucking her face now, driving my cock into the tight wet heat of her mouth with long hard strokes, and the sounds coming out of the shower stall are filthy and echoing and I don’t care.
“That’s it. Take it, slut.”
She moans louder.
“Greedy little whore. You couldn’t even wait, could you? Couldn’t let me finish, had to keep going...”
Every name I call her makes her moan harder, suck harder, her hands squeezing my ass pulling me deeper. Her jaw must be aching. Her throat is making these raw choking sounds every time I push too deep. Tears are mixing with the shower water running down her face, and she’s not stopping. Not even trying to stop.
I don’t know how long we go. The hot water runs out at some point and the spray turns lukewarm, then cool, then genuinely cold against my back and I don’t give a fuck. I’m not stopping. Not until I’ve emptied every last drop into this greedy little throat.
Jess takes everything I give her. Every thrust, every insult, every second of it. Her knees must be killing her on the hard shower floor and she doesn’t move, doesn’t flinch, just keeps her mouth open and her eyes shut and lets me use her.
The third orgasm builds slower. The edge has been taken off by the first two, so there’s no urgency to it, just a slow tightening in my core that ratchets up degree by degree while I pound into her. My thighs are burning. The cold water is raising goosebumps across my shoulders. I don’t stop.
Finally I feel it crest.
“Get ready.”
I grip her hair with both hands and pull her face onto my cock hard and I hold her there as my cock erupts. Shot after shot, firing directly into her throat, my third load of the morning and it’s still coming in thick heavy jets.
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