Britslut’s

Slutty Stories

 

 Experiment

© Copyright britslut 2008. No re-use allowed without permission.

 

Mark is waiting at the railway station for his aunt to arrive. She’s coming to stay with them for a week, as she does two or three times a year. She’s a sociologist at a university down south - in fact has just been made a full professor - and seems to get plenty of holiday, especially if it can be tagged onto a conference. Normally Mark wouldn’t be there to pick her up, but he’s just passed his driving test, having turned 17, has bought a car, and is eager to drive it as often as possible. In any case, he quite likes his aunt Mary, unlike most of his other relatives, because she’s a bit quirky and has always treated him like an adult.

The train pulls in and after a while he spots her coming along the platform towards him, carrying a bag over her shoulder and pulling a suitcase on wheels. She’s medium height, slim, with short straight hair now almost completely grey. Mark thinks of her as pretty but in fact she doesn’t fit any conventional stereotype of feminine prettiness - but she smiles a lot and her eyes twinkle mischievously, making her seem a lot younger than she is. He doesn’t know exactly how old this is but it’s several years older than his mother, who’s 50. She’s wearing jeans and a sweatshirt that says ‘Yale University’, with a brightly-coloured silk scarf around her neck, an outfit which again belies her age.

Mark also looks younger than he is but in his case tries desperately to disguise it. Cargo pants and a short-sleeved T-shirt are his chosen outfit, although it’s not really warm enough. But he’s proud of his developing shoulders and chest and wants to show them off. He keeps his blond hair short to avoid the curls which his mother adored.

His aunt spots him and waves. He recalls three facts about her that formerly shocked him - taking his cue from his parents - but now intrigue and rather excite him: one, that she has lived with her partner, also a professor, for decades without getting married, two, that she has never had or wanted kids, and three, that she doesn’t wear a bra - at least, not that he has ever detected. The received wisdom is that women who don’t wear a bra will soon end up with sagging tits. Mary’s breasts, however, although not large, are still perky and bounce delightfully under the sweatshirt.

They meet and she plants a kiss full on his lips. This is something else he recalls about his aunt - her propensity to kiss him with gusto. He used to find it ‘yucky’ but recently has come to enjoy the feel and taste of her open mouth on his. It reminds him of the girls that he gets to kiss much less often than he would like. He puts his hands on her back and hugs her gently, seeking and failing to find the straps of a bra across her back and shoulders. She hugs him back, the kiss lasting for several seconds.

‘Did you have a good journey?’ he asks politely, taking her suitcase.

‘Not bad, thanks. Glad to be here, though. I need a break. Departmental audit last week, I’m worn out.’

Mark is not sure what a departmental audit is but he’s pleased that she assumes he knows.

‘You OK? Still playing rugby? You look very muscular.’

He tells her about the team’s performance as they walk out to the car, and then about his new car which he cleans and polishes most days. She puts her bags in the boot and turns to him.

‘Come on, give me another hug. I’ve missed you, you know.’

They hug tightly. Mark can feel her breasts pressing into his chest - in fact he thinks he can even detect the hard points of her nipples. His cock stirs faintly. Mary takes his head between her hands and plants another wet, open-mouthed kiss hard on his mouth. Automatically, as if he was kissing a girl in a club, his tongue starts to emerge and touches her teeth. Amazingly, and shockingly, he feels her tongue on his, the tip wriggling against his. His cock swells further. Finally she releases his head and looks at him with an amused expression, her eyes sparkling.

‘OK then, let’s see what your driving’s like.’

Back at the house, there is a flurry of welcoming and exchange of news, gifts, gossip. Mark stays on the sidelines, observing his aunt. Sometimes he thinks he can discern the points of her nipples outlined through the sweatshirt. When she squats down to get presents from her case, the shirt rides up and he can see the triangle of a pink thong above the waist of her jeans. Wow, his fifty-something aunt is wearing a thong! Maybe she always wears them. He adjusts his pants to make his cock, still swollen but not fully erect, more comfortable. He is finding his aunt Mary disturbingly sexy. He watches her hands, the skin slightly wrinkled, long fingers a little bony. He tries to imagine them wrapped around his uncle’s cock, coaxing spunk from it, or moving gently between her pussy lips. For some reason he believes that couples who co-habit have more sex than married people.

‘Why don’t you take Mary’s case upstairs for her while I make a cup of tea?’ his mother says. ‘You’re in the usual room.’ - to her sister.

Mark carries the suitcase upstairs behind Mary, who says she needs to freshen up. He watches her small buttocks moving in the jeans. Her thighs are slender and don’t really touch - he wonders what it would be like to slide a hand up between them. He tries to visualise the remainder of the pink thong disappearing into the crack of her arse and cupping her pussy. He has seen only a few real-life girls in their underwear or naked and is keen to expand his knowledge. - he wonders how his aunt’s elderly body differs from a teenager’s.

He puts the case on the bed and she opens it and starts unpacking. He knows he ought to let her get on with it but doesn’t want to leave her presence, so he goes to the window and looks out, pretending to examine the garden. His aunt comes to stand next to him and puts her arm around his waist, leaning against him. His arm encircles her likewise, and he thinks how firm her body is.

‘What’s the matter, Mark? You seem a bit ... preoccupied.’

‘I’m OK,’ he says, squeezing her waist tighter. He glances sideways and sees her looking at him affectionately. Their eyes meet and she gives a big grin. Then somehow they have started kissing again, and this time it’s full on, lips mashing together, teeth clashing, tongues dancing and writhing and trying to lick each other’s throats. Mark’s cock hardens into steel. They embrace and his erection is pressed hard against her stomach, and her nipples are drilling into his chest.

When the oxygen runs out they separate and look at each other, panting. Mark is trembling with shock, Mary just looks amused.

‘Wow, I haven’t been snogged like that for years,’ she says. ‘You must have been practising.’

‘Sorry ...’ is all he can think to say.

His aunt gives him another, chaste, kiss. ‘Why sorry? I like snogging.’ She squeezes his cock through his pants. ‘Looks like you do too. Now you’d better let me unpack without distractions. There’s no knowing what might happen otherwise.’

Mark retires to his bedroom, still quivering from the violence of the sexual fire which coursed through him. He can still taste his aunt’s saliva. He frees his cock, rigid and aching, and wonders whether to masturbate, but something makes him decide to exercise willpower and he shoe-horns his erection back inside and goes downstairs.

Mary appears in a short while and they all drink tea and chat. She’s changed into a red silk sleeveless top and a knee-length silk skirt. Her breasts and nipples are pretty obvious under the loose top (his mother purses her lips in disapproval), and Mark thinks he can detect the outline of her thong under the skirt. He wants to run his hands all over her slim, firm body. His cock is aching and he wishes now that he had masturbated earlier - he doesn’t know how he’ll get through the day otherwise. And his aunt seems determined to stoke up his frustration - she keeps giving him little glimpses down the loose neck of her top, so that he can almost but not quite see her nipples. He can certainly see most of her pointy breasts, swinging freely inside the silk. And she sits on the sofa opposite him, legs drawn up under her, skirt carelessly arranged so that most of her thighs are on show. She sees him looking and pulls the skirt down with a grin.

Lunch is produced and eaten. Mary sits opposite Mark and at one point he is sure that he can feel her foot stroking his ankle. He is sure that something has to happen, the question is what? He is tense and shaking with excitement. None of his girlfriends has made him feel like this. Afterwards, they take the remains into the kitchen and stack the dishwasher. Suddenly close to him, out of earshot of the others, she whispers ‘You’ve made me ever so wet.’

A family discussion takes place about what they should do with the afternoon, but it has started to rain so no-one is that keen to go out. Mary turns to her nephew and says brightly, ‘Hey, you said you had some good pics of the rugby on your computer. Why don’t you show me them now?’ Mark manages not to look puzzled, as he can’t remember mentioning it, and realises that it is just a ruse for him and his aunt to go up to his room together. His heart pounds.

His mother says she needs to sort out some washing. Mary follows him upstairs into his bedroom and shuts the door behind her. She stands in front of him. There’s a determined expression in her eyes. Their mouths meet and dance and the snog begins. Her hands are all over his chest and shoulders and after a little hesitation he starts to stroke her arms and shoulders and then her breasts. They are smallish but extremely firm and the nipples are like little pebbles. Without breaking the kiss his aunt takes his hand and pushes it down, under her thin skirt and up between her hot thighs. She places his fingers over the crotch of her panties. Mark can feel that they are soaked. She holds his fingers and shows him how to rub her, firmly, leaving him in no doubt as to what she wants.

Their tongues and lips continue to writhe together as, bolder now, her nephew slips his fingers down inside her thong, over her small tuft of wiry hair. Her pussy is soft and fleshy and very very wet - far juicier than any of the few girls he has felt. Her sopping wet lips squish between his fingers, her clitoris is a solid button. He rubs it fast and hard, encouraged by the gasping noises she is making into his mouth. Within a few minutes she goes rigid and jerks in his arms, guttural noises in her throat, juice spilling out over his fingers. Mark’s cock is about to burst.

When she has calmed down, Mary disengages her mouth from his and whispers ‘fuck me’ - the first time anyone has ever said that to him. She turns round and kneels on the bed, knees wide apart, hoisting her skirt up over her waist, thrusting her arse at him. The crotch of her thong is dark with wetness, her slim buttocks and the tops of her sinewy thighs are glistening. Mark fumbles his painfully hard cock out of his pants, stands behind her, pulls the strap of her thong out of the way. Her labia are swollen and dark, the few hairs matted with juice. Fingers trembling, he places his cock against her slit and pushes gently.

Mark slides into his aunt’s vagina easily, with a loud slurping noise. She is much looser and wetter that the two girls he has had sex with to date. His stomach slaps against her buttocks and she grunts as his cock rams into her cervix. Despite her lack of tightness Mark knows that he will come very soon. She pumps her hips back against him. His cock slides in and out of her with rhythmic squelching sounds. He groans as he feels the orgasm rising, and squirts what feels like pints of hot sperm deep inside his aunt.

As the pulses die away, he looks down at the older woman’s wiry body and wonders what he has done. His cock shrinks quickly and plops out of Mary’s engorged slit. She quickly puts a hand underneath to catch the flood of sperm and juice which spills out of her. Mark watches with sick fascination as another pulse of creamy fluid trickles out, almost overflowing her cupped hand.

Mary struggles upright, the skirt falling to cover her thighs, and gives him a grin. ‘What am I going to do with this, then?’ she indicates her hand.

‘Um ...’

‘You’d be shocked if I drank it, wouldn’t you?’ There is a wicked sparkle in her eyes. Mark doesn’t know what to say. Yes, it would shock him deeply, even more than what has already happened.

‘Lift my top up,’ his aunt says, and Mark pulls it up to reveal her pointy breasts. Mary rubs the contents of her hand quickly over her breasts and chest, smearing the spunk/juice cocktail across her skin, working it into her nipples, massaging it into the flesh with closed eyes and an expression of bliss.

‘Keeps them firm,’ she says. ‘Didn’t you know?’

She lets the top fall to cover her wet breasts and at that moment there is a knock in the door. Mark’s mother has a habit of knocking and waiting a few seconds before she comes in anyway. Maybe she thinks it will give him time to hide whatever forbidden thing he might be doing - often she is right. He has just time to zip his pants up and pretend that nothing has happened.

‘The sun’s out again. Fancy a walk up to the park? There’s a new exhibition on in the gallery.’ Is there any evidence that Mark and his aunt have just had sex? Maybe there’s a smell of fresh semen - anyway his mother doesn’t seem to notice.

‘Oh, that’d be nice,’ Mary says brightly. ‘You’ll come too, won’t you Mark?’

Walking in the park and looking at local artists’ work is not his thing, but he wants to spend more time with this relative who has unaccountably triggered his lust.

‘I’d better change,’ she says. ‘It’s not too warm out, is it?’

The four of them set off, his parents in front and Mark and Mary behind, slower. She’s put the sweatshirt and jeans back on - Mark wonders if she’s bothered to change her wet thong. He imagines the remainder of his spunk seeping out of her wrinkled pussy and pooling in the gusset, and his cock swells again. He remembers - how will he ever forget? - that his spunk is smeared all over her breasts, and hardens even more. Soon they are far enough behind that they can talk softly without being overheard.

‘So, how did you like fucking your old aunt?’ Mary whispers to him.

Mark is taken aback by her directness. ‘Umm ... it was great.’

‘Me too. Didn’t last long enough, though.’

‘Yes ... sorry.’ He things she is criticising his coming too quickly.

‘Oh, I didn’t mean that. You’ll be OK next time - if you want a next time, that is.’

‘Umm ... yes. Please.’

‘No guilty feelings? I won’t mind if you don’t want to.’

‘No, I do want to ... do it again.’ It’s true, he does, desperately, despite the fact that she’s far older than any woman he has ever fantasised about.

‘So do I. Your cock felt really good in me. That wasn’t your first time, was it?’

‘No ...’

‘So? Come on, tell your aunt all about it! How many girls have you had? Quite a few, I bet, with your looks.’ She pokes him playfully.

‘Just a couple,’ Mark says sheepishly. ‘I guess I’m a bit shy ...’

‘Tell me about them, then. What happened? I’ll tell you about my first time, if you like - if I can remember it!’

‘How old were you?’

‘I was sixteen - no, fifteen. A few days short of my sixteenth birthday. I was at a party, lots of guys and girls, lots of music and drink and pot, we had a wild time. This was 1966, you know, summer of love and all that. Miniskirts and free love everywhere. It’s wonder I made it to 16 before going all the way. Anyway, I was a bit stoned, and some older guy hit on me and we started kissing and groping and I just let him do what he wanted, it all felt good. He took me back to his place and basically screwed me all night. We must have worked our way through half the Kama Sutra. It was like a crash course in sex.’

‘Wow.’

‘Yes, you think your generation is liberated! I don’t think I got my legs back together all summer.’

His mother and father are waiting for them. ‘What are you two laughing about?’

As they wander round the exhibition of local watercolours, Mark tries to imagine his aunt as a young wild flower child, spreading her legs for everyone (girls as well as boys, he wonders?), constantly leaking semen. He groans inwardly with frustration. The things she must have done! He adjusts his painful erection.

Mary notices and stands close to him. ‘When we get back,’ she whispers, ‘I’ll take care of that for you. I’m very good at oral sex. Would you like that?’ Mark almost comes in his pants at the thought of his aunt’s hot mouth around him. He has only once had his cock sucked, with some reluctance on the girl’s part, and disgraced himself by ejaculating almost immediately into her face. They never dated again.

The opportunity presents itself later as if by divine intervention. His father is working in his office, his mother has taken a phone call from a friend and seems set to chat all afternoon. Mary leads her nephew upstairs by the hand and, in her bedroom, kneels before him and extracts his still hard cock. He groans as her warm soft mouth closes around its sensitive head. It’s the most deliriously wonderful sensation he’s ever had. Her bony fingers clasp the base of his shaft and his balls, and her wet lips slide up and down his column, taking him deep into her mouth. He gazes down at the top of head and every so often she lifts her face up and grins at him, red lips still locked around his aching cock.

Amazingly, she fellates him for a full quarter-hour before she lets him climax. Mark’s knees buckle as the orgasm sweeps over him. Mary’s cheeks hollow and she sucks the fierce gouts of semen from him, swallowing loudly, to his disbelief. She continues to suck and swallow with every sign of enjoyment until he has finally stopped pulsing and his cock has started to soften.

His aunt smiles up at him. ‘My, you cum like a firehose! I won’t need any dinner after that!’

She struggles to her feet and gives him a fierce kiss with lips that taste vaguely of his semen. ‘Fancy returning the favour?’ She leads his hand under her skirt (having changed again when they got back) and onto the soaking wet crotch of her thong. But then Mark’s mother calls up the stairs. ‘Sorry about that! Would you like a cup of tea?’

Mary makes a face and releases his hand. ‘Later,’ she whispers. They go downstairs to be sociable, to talk about relatives and problems. Mark’s father works on in his office, excused the sisterly analysis of family events. Mark sits idly, letting the conversation wash over him, watching his aunt’s bare legs under her thin skirt, trying to come to terms with his feelings for her. Mostly uncontrollable lust, mixed with a vague sense of unease.

Later, much later, his mother goes off to prepare the evening meal, refusing all offers of help. It is a point of honour with her to be able to provide for everyone without assistance. Mary drags her nephew upstairs again. ‘Come on, I’m as horny as a teenager.’

In his bedroom, they embrace hungrily and she leans back against the wall. Her tongue is lashing the inside of his mouth. She reaches down to free his cock, hooks one slim leg around his waist, pulls her thong aside and feeds him into her hot vagina with practised ease. Mark grips her hard buttocks and she wraps her other leg around his waist and locks her ankles together. He pounds into her fiercely, grinding the base of his cock against her clitoris. They rock against the wall, each working on their own orgasm.

Mary comes first, mewling into his mouth. Amazingly, Mark can feel her juices trickling down his thighs. He can feel the tremors in her pussy. He redoubles his pumping and soon unleashes a series of agonised hot spurts deep inside her. The woman squeezes the base of his cock, milking the sperm from him. His knees buckle and he staggers over to the bed and collapses onto it, his aunt on top, still conjoined. They kiss wetly while his cock softens and slips out of her.

Mary raises herself on her arms and smiles at him tenderly. ‘Wow, that was something else! How was it for you?’

‘Um ...’

‘Having second thoughts? Maybe you feel we shouldn’t be doing this ...’ She strokes his forehead.

Mark isn’t sure what he feels. The sex is great, infinitely hotter than anything he’s had with girlfriends. But she’s old - and she is his aunt. That ought to squick him, but it doesn’t - yet.

‘I suppose we ought to get cleaned up,’ she says. ‘Can’t go downstairs with cum all over us, can we?’ She gets off him and walks bow-legged into the bathroom. Mark is left lying on the bed, his cock and balls covered in cooling semen mixed with her copious juices. He didn’t know that women could produce so much ...

Mark is in a bit of a daze when they sit down to the meal. He’s had raunchy sex three times with his aunt, who sits opposite, looking fresh and sparkling, and he really hasn’t come to terms with his feelings.

His father asks Mary what research projects she’s working on at the moment.

‘Well, I’m currently involved in a big multi-centre study on incest.’ Mark hears his mother make a strangled sound next to him. ‘There’s been surprisingly little work done on it in the UK.’

‘Incest ... you mean child abuse?’ The revulsion in his father’s voice is plain.

‘Not necessarily. That’s part of it, of course, but our data so far indicates that most incest occurs voluntarily and between adults - or teenagers, anyway. The latest analysis indicates that over 50% of people have had some sort of incestuous contact at some point in their lives.’

‘Well I’m sure I haven’t!’ Mark’s mother expostulates. ‘The very thought ...’

‘I thought there was supposed to be a universal taboo on incest?’ says his father.

‘That’s what everyone assumes. But it’s not borne out by our research. In our interviews, most subjects confessed to having incestuous feelings towards one or more family members, and of those who had had incestuous experiences, over half of them had no guilt feelings or other psychological problems.’ His aunt shrugs, and glances at Mark. Did she give him the hint of a wink?

‘Well I think it’s disgusting,’ his mother says. ‘Let’s talk about something else.’

Mark is silent for the rest of the meal. He suspects that he has been taking part in one of his aunt’s experiments. Intrigued by what her subjects have been telling her in their interviews, she has decided to try it for herself. She has seduced her nephew and wants to analyse her own feelings, and his, to see whether either of them indeed has an incest taboo. Well, it seems not. He feels used. He wonders if their fucking will end up as a case study in an appendix to her research.

But he still desires her - wants to feel her hot mouth on his, to grope her slim, hard body, to feel her slick hotness around his cock, milking his semen. And to do other things too, things which excite him and at the same time make him shiver with unease - to suck her pebble nipples, slide his tongue into her wet pussy, explore her almost-certainly well-used anus ... His cock grows hard again and he knows that, even if he is a guinea pig in a sociological experiment, he will not be able to resist the lure of his aunt’s horny body. He trembles with anticipation and disgust.

 

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 last modified 8 April 2008