Incest/Taboo Evolution

Warning: the following story contains graphic descriptions of very casual sex. If that is not to your taste, I would suggest you read something else. This is all complete fiction. I would never condone or tolerate in real life the behavior described in this story.

All characters are over 18 years of age.
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The headboard of our bed repeatedly hitting the wall eventually woke me. Not very loud, more like a constant, rhythmic, slow drumbeat. I have no idea how long it had been going on. The faint early morning light seeping into the room through a crack in the curtains was enough for me to see.

I looked over my left shoulder to see Doctor Moran on top of my wife Laura, slowly humping her. His overweight, sweaty frame completely covering her petite body, pummeling her into the mattress. Laura's knees were bent, and her sexy tanned legs spread wide as she lay on her back giving him access, with her hands on his sides, gently encouraging him to get on with it.

Our 63 year old family doctor then suddenly picked up the pace for a final three thrusts, and unloaded with a grunt into Laura before collapsing in a heap on top of her.

"Good girl," the doctor mumbled into her shoulder, as he tried to catch his breath. She's 39 years old!

It was at that point Laura looked to her right and caught my eye, smiled, then looked down and saw my massive boner tenting the sheets. Giving me a cheeky wink, she reached out her right hand, slipped it under the sheet, down the waist band into my boxer shorts, and softly caught hold of my cock.

I was already at full mast, and started oozing precum at her touch. This wasn't going to take long, I was already close to cumming before my wife even squeezed.

Laura started running her hand up and down my shaft, not even bothering to take it out of my boxers. On the fifth stroke I couldn't take anymore, and shot my load into my shorts, spewing down Laura's hand and wrist.

I was still spurting the last few drops when Doc Moran lifted his big head off Laura's shoulder, and looked over at me too.

"Oh, hi Tom. Sorry for waking you up," the doctor panted. "I hope you don't mind me calling in so late, or early, depending how you look at it! I was on a late night call out to an emergency, got a little horny on my way home, so I thought I might come in and use Laura here," he breathed, and with that he stuck his tongue down my wife's throat.

"No problem at all Doc," I replied to our next door neighbor, as my heart ached with jealousy.

After a few more seconds of kissing my wife, the doc rolled off her and bent down to pull up his pants - the lazy prick hadn't even bothered to take off his shoes. He grabbed the shirt he had discarded on the end of our bed and started to button up, saying goodbye as he waddled down the stairs, the fat fuck.

"He knows where we keep the spare key outside, so he let himself in again," said Laura, as she rolled her eyes while shaking her head in mock annoyance.

She remained on her back with her legs spread, waiting. I was hard again seeing her lay there, cum now starting to dribble from her pussy. I pulled down my soaked boxers and the bed sheet, and rolled over on top of my wife, taking the place of my neighbor. Then without hesitation, I buried my rod into her soggy hole where the doc had just dumped his seed.

There was a louder than expected squelching sound as I entered her balls deep, and came for a second time on that first thrust, shooting 5 or 6 huge ropes of cum deep into Laura's already full cunt.

"Good boy," said Laura, and we both giggled before eventually falling back to sleep.

The world changed just over three years ago. Well, the way people behaved changed would be more accurate. Nobody can prove exactly when it happened or what caused it - there were some crazy theories like solar flares, chemicals in the drinking water, chem-trails, nerdy shit like that.

Then there were some plausible ones like a virus. It was a gradual change at first, for example a lot of married people we knew were having affairs, while the partners didn't appear to care and just carried on as normal, most having their own bit on the side quite openly, literally out in the open in many cases. Also, instances of sexual activity in public had started to become common.

It wasn't until the media latched onto it that it became a 'real' thing. That attention prompted some medical professionals to sit up and take note, and actually take it seriously. What they found was astonishing, gene mutations previously undetected had been discovered in all test subjects.

This change to the human genome appeared to be causing a large increase to people's libido. Also, they were showing much lower inhibitions, a desire for sexual experimentation had increased, and probably the most visible difference - people rarely rejected sexual advances anymore, even if they had little or no interest in their suitor. According to the experts, humans were entering a new stage of our evolution.

Once this finding became public, it seemed to be the explanation people needed, and it justified how everyone felt and wanted to behave. However, realizing this could get out of control quickly, most world governments acted swiftly by drawing up new laws that reinforced some common sense.

Consent can be taken away at any time. Public nudity or sexual contact while children are not in school was strictly prohibited, so outdoor or public sexual acts were only permitted between the hours of 10am and 2pm on weekdays, and also between 10pm and 6am when all children had a curfew and must be at home.

Sexual contact of any kind is strictly forbidden for all people under the age of 18, as well as any sexual acts between consenting adults in the presence of anyone underage.

Also, under 18s have their own public school bus transportation on weekdays, and are not allowed use the main public transport - I think politicians knew the temptation to use a stranger in that setting would be too much to risk having children around.

So, you are probably wondering what the hell this new world looks like. Well, basically we are all free to initiate a sexual encounter with anyone we want at any time, once they are over the age of 18, provided they consent of course. Everyone almost always consents.

We still feel the betrayal, anger, jealously, and any other normal emotion when a partner or spouse cheats, but those feelings are overpowered by arousal. Also, people seem to have been reprogrammed to understand and accept when a partner fucks away from home, as they are also experiencing the evolutionary changes themselves.

My name is Tom. I'm 40 years old, 5'10" tall, with short brown hair that is starting to show a few flecks of grey. I work in sales for a large software company in the city.

We live in a small town about a 30 minute drive from the city. I'm in decent shape, or so I tell myself (cards on the table, I probably carry a little too much weight around the middle). I work out, but mostly it's a token effort. I'd love nothing more than to boast about my sexual prowess.

But I'm not going to start off this story with a lie. I am however packing an 8 incher, and it's thick as fuck, but that's where my highlight reel ends. I usually manage a couple of minutes with the first load of the day all going well, then it's game over (and inevitable disappointment for whoever is on the receiving end).

The good news is I recover quickly and am usually ready to go again in a couple of minutes. But, more bad news. My second wind tends to last not much longer than the first, then we have blast off again.

Typically, I need a little while before I'm back in business for round three, but I can normally give the lucky lady a little longer this time, if she has the patience to hang around long enough to see my best moves. Also, I cum a lot, as in I shoot bucket loads. So I make a fucking mess.

My wife Laura is 39, a teacher in the local high school, and is way out of my league, always was, even when I was in my prime 20 years ago.

She has a petite body and stands at 5'3", 32C tits, blonde (bottle -- aren't they all?), amazing legs propping up the most perfectly shaped ass you have ever seen, not too big, not too small, you know the type. She is beautiful.

If I didn't know her and walked past her in the street, I would guess her age to be late 20s, maybe 28ish. Laura works out and it shows, she keeps herself in great condition.

We have 2 kids, a 19 year old son Ben, and an 18 year old daughter Claire. Ben is in university in the city; Claire in her senior year in high school.

My alarm went off at 7am as usual the morning after the good doctor's latest house call. The Monday morning dread was made worse by the lack of sleep. But I had a lot of work on today, so no time to lay there feeling sorry for myself. Laura was already up, she's an early riser no matter how little sleep she gets.

I took a quick shower, dressed for work, and went down to the kitchen to find the rest of the family doing their thing. Laura and Claire were eating breakfast on high stools at the island counter, Ben was sitting over on the recliner watching early morning TV in the same open plan room. I received my usual friendly greeting from the kids, and I gave Laura a peck on the cheek as I grabbed a slice of toast on my way out the door.

I usually take the car to work on Mondays, to make the start of the week a little easier. It's only a 30 minute commute by car to my office in the city, compared to the 40 minute train journey, or 45 minute bus ride.

I try to take the train or bus (the bus stop is closer to our house, but the train is usually less packed) the rest of the week. I arrive at the office just before 8am today, and go straight to my desk.

Jean is already here, her desk is directly across from where I sit. I've worked with Jean for 10 years, and she has been my manager for the past 4. But I can call her a friend as well as a work colleague.

Before I sit down to start my day's work, I walk over to her as she stands to greet me with a hug. Then she turns around and bends over, leaning on her arms on the desk, and shuffles her legs apart slightly. I pull the grey skirt she is wearing up over her ass, no panties as expected. I unzip my pants, draw out my quickly hardening pole, and line it up with her pussy lips, which I notice are glistening wet as usual.

I press forward, holding Jean's hips firmly to keep her steadily in place, and keep going until I bottom out. When my ball sack nuzzles up against her clit, Jean lets out the breath she had been holding in.

"I was looking forward to you filling me up like this all weekend. Nobody can stretch me out like you Tom," she said.

I know by her pussy that I'm her first today, just the way I like it. I like to think she was holding out for me to get here.

This routine is not new for Jean and me, I've been fucking her since I first plucked up the courage to use her a few weeks after our new normal started 3 years ago. But it's still hot as fuck for me to hear her say stuff like this.

Jean was my first, to use like this that is. I have always fancied Jean since I started in this job 11 years ago. She turned 51 earlier this year.

Jean is happily married to Pete and they have two adult children. I would never have tried anything on with her, before things changed.

She was just a fantasy really, the work colleague you bang in your mind as you jerk off. But then...... the fantasy became a no consequences option, all I had to do was have the balls to do it. Easier said than done.

That first day with Jean was like being a teenager all over again. I awkwardly kissed her in the office parking lot as we walked to our cars after work, half expecting her to slap me, but really I knew she would be just like everyone else and be too horny to say no.

She responded with a hunger that knocked me for six, first kissing me back, then pushing me up against a wall and dropping to her knees, expertly unleashing my meat through my zipper.

That first blowjob was the best I had experienced in my life up until that point. She managed to inhale my full length with ease, nobody else had even come close, but Jean was in a different league.

She took me down her throat over and over, then when I felt myself getting close I let her know, expecting her to pull me out and use her hand to finish me off. But instead she clamped down, burying her nose in my pubes and flicking her tongue over my balls, and allowed me to spurt my full load down her throat directly into her stomach.

When she was sure I was done, Jean released me out of her mouth and gasped for air deeply.

"What a cock," she said, with her eyes wide as she watched it go soft. The memory makes me tremble even now.

Jean is basically a carbon copy of my wife, only twelve years older. Her tits are sagging a bit, she has a hint of a pot belly, and a couple of wrinkles starting to make themselves known around her eyes. Her pussy is not nearly as tight as the 20 somethings I've started screwing over the last year or so. But she is one sexy bitch. And she fucks like an animal in heat.

Most people nowadays just screw whoever they see, but Jean and I have a connection. We sometimes arrange to meet in secret to spend time together. Affairs aren't really a thing now, but with Jean it's...... different. She knows I'm not the greatest lover in the world, but she seems to relish in my quick orgasm, especially my first of the day.

Anyway, back to today. I have Jean bent over her desk, nothing different to most other weekday mornings. Some other people in the office glance over in our direction, but this is nothing new or surprising for them to see from the two of us.

Jean's pussy is pretty loose, and very wet today as I mentioned, so I don't need to warm her up too much.

She's told me previously that her husband is a decent fuck, but his cock is not even close in size to mine (major ego boost). I start ramming it into her at a good pace, my balls slapping against her trimmed mound and clit. I know by how her pussy feels, clenching around my knob and the flowing juices, that she is cumming already.

I'm only a few seconds away myself. I lean forward and grab her right tit over her blouse, left hand still gripping her hip, then I let go and flood her with my first load of the day. I try to suppress the noise as people are trying to work, but a barely audible grunt manages to escape my lips.

Jean is still catching her breath when I withdraw fully, about a minute after entering her, and my cock is quickly followed by a huge load of sperm falling onto the office carpet. I take a step back and admire the sight of Jean's bare legs and ass, skirt still up around her lower back. What a lucky bastard I am.

She reaches across the desk for her handbag, and takes out a pair of black panties. She then grabs a handful of tissue paper from the box on her desk, and wipes up as much of my cum flowing from her pussy as she can.

She steps her feet into her panties, pulls them up her legs and over her hips, then straightens her skirt back down over her ass. It reaches about three quarters the way down her thigh, settling a few inches above her knees.

Jean usually wears a skirt to work, some long, some very short, today's one is about mid length for her. She also mixes it up by wearing nylon tights if the weather is chilly, and usually bare legged on the warmer days. Sometimes she wears a pair of skin tight jeans -- I sit at my desk with a constant semi on those days.

The rest of my morning is taken up by calls to prospective clients, my least favorite part of the job. I like to get as much of that out of the way early in the day.

At around 11.30am I start to feel a bit horny again. I look over at Jean, but she is on a call. Just as well, I need to broaden my horizons a little. So I take a wander around the office floor.

I've worked with most of the people here for a long time so I know them pretty well. We have a good age mix in our workforce, and the male/female split is around 50/50. The attractiveness of the women varies, some are only okay, some are knockout hot, and then everything in between.

I pass by marketing and see one of the sales managers sitting on an office chair with our 35 year old marketing director straddling him, her skirt hiked up but both fully clothed, obviously fucking. She is quite gook looking, and a nice fuck, so I'm a little disappointed she's taken right now.

The HR department are in the next section of the office, so I'll see who is available there. Ah Lucy, the young intern, I think she is 22, just out of college, brunette, and a total babe. The type that wouldn't have given me a second glance in the past. Lucy is....not free.

Shit, I was hoping to have my first go with her, I've been biding my time to get her alone, but one of the security guards is kneeling down under her desk with his head between her legs.

I don't know how Lucy gets any work experience to be honest, she is just too fucking hot. The poor girl always seems to have someone sniffing around.

Her trousers are off and are neatly folded on her desk, which is a bit weird, with her lace panties resting on top of them. She has one of her perfectly tanned legs over the guard's shoulder, the other foot resting on the floor.

The sight of the situation turns me on even more than I already was, so I walk over and ask if I can watch. My secret code for wanting in on the action!

The security guard doesn't even hear me, but Lucy gives me a shy smile and reaches out her hand to my belt buckle. I help her undo my pants and free my growing erection, taking a step closer to her mouth to she doesn't have to move, I'm a considerate guy!

She doesn't even need to bend her head down, my horn is long enough to brush off her lips from where I'm standing, smearing her pale red lipstick slightly.

She opens her mouth and lets me slip my head inside. Fuck me, what a feeling. She swirls her tongue around my cock head, over and over.

The security guard's name is Karl by the way, that fucker must be in his late sixties, a retired cop. Good for him I guess, why not. He's slurping away underneath her landing strip to his heart's content.

Lucy reaches up with her right hand to hold onto the base of my cock, lets the head fall free from her mouth.

"Wow, I wasn't expecting you to have this inside your pants," she says.

"Thanks, I think," I reply. Have I just been praised or insulted? Meh, who cares!

She seems to be getting a little more into the whole scenario now. While still holding me with her right hand, she lets her left hand rest on top of Karl's balding head and gently caresses his scalp.

Then she starts wanking me off slowly, which is all very nice, but I want a fucking blowjob. So I tell Lucy exactly that. And she dutifully obliges, resuming her heavenly tongue swirling.

I'm staring at her sexy tits, which she is showing off nicely in her white string top, when she takes about half of my cock into her mouth. That progresses things quite a bit for me. I should be mindful to make sure Lucy's needs are being met, but fuck it, Karl is looking after that end of things.

Very soon I get that tightening feeling in my balls and I know I can't hold back any longer, she is just too fucking beautiful, plus her mouth skills are unbelievable. So I tell her I'm about to come and ask her where does she want it. She pulls me out of her mouth but keeps jacking me off.

"On my tits," she purrs.

I reach out and roughly pull her top and bra down in a single movement, allowing her big tits to flop free, I think I ripped her top a little, crap. But she doesn't say anything.

Just as I am about to cum, I stick two fingers into Lucy's mouth and she starts to swirl her tongue around them like she did with my cock seconds earlier. As my first blast leaves my shaft, I shove the two fingers down her throat making her gag.

The first two shots landed between her tits, but the next one lacked the power and landed on Karl's bald head. He just reached a hand up and wiped it off, I'm not sure what he did with it. I leaned forward a little, closer to Lucy, and the last three squirts fall on her white top which was bunched around her flat belly.

Spent, I leaned down and kissed the gorgeous Lucy on the lips, feeling that sexy tongue swirl around my own, then zipped up and went back to work, leaving Karl to carry on doing his thing.

When I return to my desk, Jean looks across and gives me a little smile. Without saying anything I smile back, then resume my work.

I look at my watch and see it's 11.45am. I decide I would work through lunch to hit my client list target as quickly as possible for today, then maybe knock off early to try and beat the traffic.

At 1pm Jean stands up and tells me she is going to the café next door to grab a takeaway lunch. She asks if I would like her to bring anything back for me.

I tell her to grab me a sandwich and coffee, and continue with my calls.

After a while I notice Jean hasn't returned, so I check the time, 1.30pm. That's strange, usually she would only be 10 minutes on this lunch run. But I can guess what has delayed her.

When she eventually returns at 1.40pm, sure enough my suspicions are confirmed. Her hair has been messed up, and a few strands cling to her face. Her skirt is out of position, a little too far up her thighs for it's length.

"Sorry," she says. "A few guys from the office next door were in the café and wanted to use me. They were pretty quick, but there were four of them and they all wanted me on their own," she casually explains. "I was the only woman there so what could I do," Jean finishes, shrugging her shoulders.

I know I'm being unreasonable, but I do feel a little bit jealous when other men have their way with her. She can see it in my eyes too, so she leans down and kisses me on the lips and says she is going to get cleaned up and will join me for lunch at my desk in a few minutes.

She returns soon after and we make space for our food, Jean drags her office chair over beside mine. We chat about everyday things for the next 20 minutes while eating, then I clean up the trash and convert my desk back to a workspace again.

She is already back at her desk before I finish stuffing the wrappers and paper cups into the trash basket. I take a long look at her legs which she has crossed at the knee, a high heel propped up on one of the swivel chair leg spindles, her skirt riding up her left thigh almost to her rear end.

She has a pen between her teeth as she stares intently at her computer screen, a lock of her blonde hair hanging down around her chin, she is completely immersed in her work. I could feel my heart begin to pound and an erection building again, but I forced myself to tear my eyes away from her. I needed to get back to work. What a woman.

I usually finish work at 5pm, but I decide to call it a day at 4.30. Jean tells me she is going to stay another while, she seems pretty busy. I was looking forward to dumping another load in her before leaving, but I'll leave her alone.

Instead I just stop by her desk for a few seconds to run my hand up her thigh, and I give her a long kiss goodbye.

With my usual evening fuck buddy off limits today, I decide to find someone else to take her place. I'm driving, so a quickie on public transport is not an option either. Most people have already left the office, so slim pickings around here this evening too.

Then I get a brainwave, I'll swing by the gym and find some guaranteed pussy there, maybe even get a quick workout for myself in too.

I always keep a gym bag in the trunk just in case I get an opportunity to work out that I hadn't expected. My gym is only 5 minutes from my house, so I'll still get to beat the traffic as planned.

When I arrive at the gym, most people are actually getting on with her workouts. Sometimes the gym can turn into a sex club, but today there are only two people screwing over by the changing rooms in a quiet corner.

I change into my gym shorts and t-shirt, and come back out to the open plan gym on a mission. I scan around the room, and my eyes are drawn to a girl in her mid 20s, stretching on a mat in front of a mirror.

She is wearing black yoga pants, and has a seriously toned ass that must have taken countless hours working out to achieve. She has jet black hair, tied back in a pony tail, and is wearing one of those tops that is barely more than a bra, her flat midriff on full display.

Her tits are pushed together and seem to be defying gravity, 32D I would guess. She is a little taller than my wife, maybe 5'6". Her face is stunning.

I make my way over and decide to cut to the chase. "Would you mind if I fuck you really quick, I won't take up much of your time," I say. I have already started to pull down my shorts as I move behind this beauty.

"Sure thing," she answers. "Take as long as you need."

She then proceeds to remove her pants and sneakers, and stands before me with just her black training bra/top. She gets down on all fours on her mat, spreads her knees nice and wide, and points her ass up in the air for me. The sight before me is fucking exquisite.

She leans forward on her elbows, picks up her phone and starts scrolling, completely indifferent to me running my cockhead up and down her slit as I harden fully.

When she seems wet enough, I push inside her pussy, and it feels like the softest, tightest velvet tunnel you can imagine.

I pull back a little, then slide a little deeper on the next thrust. I'm about 4 inches inside when she looks back over her shoulder.

"You have a pretty fat cock, it's nice," she says quietly.

"Thanks," I reply, then push another inch into her.

"Whoa, whoa, hang on a second, I didn't realize you were going to be this big," the stranger says, as she takes one hand off her phone and reaches between her legs to rub her clit. "Just need a minute to adjust to your size".

I fuck her with the 5 inches for another few strokes, but it was killing me to hold back, if you saw this girl you would understand.

So as I hold onto her ass with both hands, squeezing my thumbs into her cheeks, I shove the full 8 inches in.

"Oh FUCK," she roars, and drops her phone.

She's interested now. I've came twice today already, so I'm determined to impress this mega babe.

I bang her at a nice pace with my full length on each thrust, neither fast nor slow. Two minutes later she starts fucking back at me against each stroke, then drops her head into her hands as her orgasm hits.

Her body is shaking and I can't stop her collapsing flat down on the mat, so I follow her down, not breaking stride.

I'm fully on top of her now, her bubble butt is pushing against my belly in this new position (I really need to work on losing those few pounds), and this new sensation tips me over the edge.

I don't bother fighting it anymore as I buck hard one last time, then shoot a torrent of jizz up her fuck hole. I keep it buried inside her as rope after rope erupts from me.

When it finally stops, she scooches forward and I fall out.

"Wow, what the fuck. This thing is a weapon," the beauty says as she spins around, and grabs hold of my dick.

"Yeah, thanks," I mumble, not really knowing what to say, but also breathless from my efforts.

"My name is Carla, what's yours?" she says.

"Tom. Nice to meet you," I reply, my shyness at speaking to such a sexy woman now coming back.

"Can I get your number Tom. I'm going to need more of this thing," Carla says, not taking her eyes off my cock, which has now returned to it's more modest flaccid state.

So we exchange numbers and part ways. I assume she will forget about me before I reach my car. I forgot to work out too.

I didn't bother showering after my encounter with Carla, so when I arrive home I reek of sex. Laura is pretty used to it by now - I think it turns her on. I drop my gym bag on the floor and Laura comes over to me with a hug and kiss.

"Hey sexy," she says, with a naughty smile on her face. "Tell me about your day." Then she takes my hand and leads me to our bedroom.​