At ten that morning Tracy spotted Sammy mowing the front lawn of his house. She smiled and strolled outside, squinting in the bright sunshine, wearing a pair of arse-hugging white jeans and a yellow T-shirt that exposed her flat mid-rift.

"Hi Sammy," she smiled as she walked across the garden that the boy was mowing. He was, as always, wearing scruffy jeans - stained green from the blizzard of grass-cuttings that had been spewing out of the back of the mower - and his baggy Nirvana T-shirt.

"Hiya," Sammy grinned, flicking the mower off, "What you up to?"

"Just thought you might like to come to my place this afternoon. About quarter-past-twelve?"

"Sure. Sounds cool. Are we er..." he whispered, glancing round to ensure there was no-one about, "...going to do what we did last night?"

"Sort of. My friend will be there. You can meet her and...do stuff."

"Cool!"

"So, you'll be over at twelve-fifteen?"

"I sure will."

"See you then honey."

Tracy turned and walked back to her house, correctly guessing that Sammy's eyes would be fixed on her wiggling arse.

At home, ten-minutes later, Tracy went to her bedroom. Sitting on her double-bed she rang Mandy's mobile phone.

"Hello?" came Mandy's quiet voice.

"Hi Mandy, it's Tracy."

"Hiya."

"Are you still coming over later?"

"Sure. I can come over now if you want."

"Leave it until about twelve-thirty. My parents will be gone then."

"Okay," said Mandy, not sure why Tracy's parents being out was some sort of pre-requisite for her to go over to Tracy's house. Still, she was an easy-going and trusting girl. It wouldn't occur to her to question such decisions. "I'll come over at..."

There was a pause and a young boy's voice could be heard. Tracy heard Mandy's muffled voice: "Get out my room Sammy. I told you to knock when you come in. Whaddya want?"

Tracy grinned to herself as she heard Sammy bickering with his sister, Mandy placing her hand over the mouthpiece so that it was hard to tell what she and her brother were saying, except that it seemed to be laced with petty hostility. After a moment it ended. A slam of a door could be heard.

"Hello?" came Mandy's voice.

"I'm here," replied Tracy, surpressing a giggle.

"My stupid brother," explained Mandy, "Bursting into my room, declaring he'd cut half the lawn and it was my job to do the other half. I told him that sharing that chore meant he did it all one week and I did it all the next. He expects me to go out and finish off the...oh, nevermind. I'm sure you don't want to hear about my stupid brother. Anyway, I'll be glad to get away from him. I'll be over at twelve-thirty."

"I'll see you there. Listen er...don't tell Sammy you're planning on coming over here. He might...I dunno...follow you or something."

"Good idea. I won't let him know. See you later Tracy."

"See ya."

Tracy hung up and smiled to herself. She had complete confidence that her young neighbours would be grateful for her at the conclusion of today's events.

Tracy's parents went out at twelve, leaving their daughter to tidy up her bedroom. She cleared it up, made the bed and whipped the curtains shut before turning on the main lights and lamps to ensure it was nice and brightly lit. After a quick shower, Tracy put on a pair of white denim cut-offs and a tight white T-shirt. She decided to pad around in bare feet, her long legs and feet exposed and on display.

The doorbell rang at twelve-fifteen and Tracy answered it, glad to see Sammy was punctual. He was still wearing his baggy T-shirt and grass-stained jeans.

"Hiya Tracy," the boy said, strolling into the house, "I'm all ready for some lurvin'!"

"Good. You're a bit early, this ladyfriend of mine isn't here yet. She'll arrive shortly though. Hmmmm, you could have dressed for it," sighed Tracy, closing the door and turning to the twelve-year-old boy.

"What's wrong with this gear?" he asked.

"It's scruffy. And your jeans have grass-stains on from mowing the lawn. Plus your hands are all grubby."

"Aw, so what?"

"Girls love cleanliness," Tracy explained, "so come on, upstairs and in the bath with you honey."

"I'm not having a bath."

"I'll bathe you."

For a moment, Sammy thought of Tracy scrubbing him down whilst he was in the bath. The thought pleased him and he said "Okay, let's go."

He and Tracy hurried upstairs.

In the bathroom, Sammy stood naked in the bath and humming happily to himself whilst Tracy spongued him down, washed his hair, scrubbed him clean and, finally, held out a huge fluffy towel which the boy stepped into from out the bath. Tracy scrubbed her little pre-teen stud dry and, seeing that it was almost half-past-twelve, hurried him into her bedroom.

"Hop into bed," Tracy ordered him, "and I'll go and see to our guest. It'll be about ten-minutes."

Sammy climbed into Tracy's bed, laying under the covers.

"I feel horny," he giggled, reaching down to his crotch and playing with his penis, which had been semi-erect throughout the whole time Tracy had been giving him a bath.

"Well, don't go jerking off," Tracy warned him, "See you shortly."

Tracy shut the door and went downstairs, just in time for the doorbell to ring. She opened the door.

"Hi Tracy," Mandy said as she stood on the doorstep.

"Hiya, glad you could make it," Tracy said, "Come in girl."

Mandy stepped in and Tracy shut the door then turned.

"What are we gonna do today then?" asked Mandy.

"I thought we'd try some clothes on. I've er...got a load of clothes I'm about to throw out and I thought you might like to try some on, see if any fit. Wanna pop upstairs and go to the bathroom? Get undressed and throw on a dressing-gown. Then we can have a girlie afternoon of trying on clothes."

"You mean, I try on loads of clothes and stuff?"

"Sure. It'll be fun."

"With you in the room?"

"Yeah. Or I can go out the room when you're changing if you want. Up to you. Come on, let's get going. Upstairs you shy little minx."

"Um, okay," Tracy said. She went up the stairs, Tracy following, worrying about Mandy's anxiety about 'trying on clothes'. It was just a ruse, of course, to get Mandy in nothing more than a gown, but it was evident the poor girl was all shy about just being undressed in the same room as a Tracy. Perhaps she'd freak out when she'd find herself nude in front of a boy - her brother. Tracy hoped that this wouldn't all backfire. Still, it was too late to turn back now.

Whilst Tracy went to her bedroom, Mandy went into the bathroom, shut the door and, as per instructions, stripped naked and put on a fluffy pink towel. She never bought many clothes for herself and thought back to a couple of days ago to when she'd envied Tracy's confident ability to wear skimpy garments and how she'd promised herself to get some like that. Now was her chance. However, she wasn't too keen on dressing and undressing in front of Tracy, or indeed, anyone.

Mandy was so anxious that she didn't notice her little brother's clothes in a pile in the corner of the bathroom. She just put on the dressing-gown, tied the belt and left the room. She went down the hallway and strolled into Tracy's bedroom where, naturally, she was somewhat surprised to see her brother sitting up in bed, the duvet covering his lower body but his bare torso visible.

Brother and sister made eye-contact, each of them as shocked as the other.

"What are you doing here?" Mandy asked her brother.

"I was gonna ask you that too," Sammy retorted.

They both looked to Tracy who was standing next to the bed, a wicked grin on her face.

"Oh," Tracy stammered, "do you two know each other?" She giggled, then noticed the two siblings were too busy wondering what was going on to get in on the joke. "Sorry," Tracy continued, "I'm afraid I lied a little bit to you Mandy. It's not a girlie afternoon of trying on clothes or other such frivolity, but you're here to finally get it on with a guy. You're seventeen Mandy, too old to be a virgin, and it's clear that only your lack of self-confidence is keeping you from throwing yourself into the big wide world and making yourself available to all the millions of men who'd lust after you. So, basically, I've played match-maker. No big crime is it? I've just set you up on a blind-date, except in this case we're going to skip the date business and get straight onto the bedroom antics."

Mandy just stood there, blinking. She didn't fully grasp what her friend was suggesting.

Sammy was much quicker on the uptake though.

"You want me to...do it?" he gasped, "With Mandy?"

"Yes," Tracy replied, "You can't complain Sammy. I haven't lied to you have I? I said you'd be meeting up with, and deflowering, a very pretty but shy young lady, a friend of mine. Have I not kept my promise? Is everything not going to plan?"

"But," said Sammy, "you didn't say the girl would be my frigging sister."

"You didn't ask," sighed Tracy, as if it was inconsequential. She then strolled towards Mandy who still stood there looking a bit shocked.

"So what's going on?" she asked.

"Tracy wants you and me to do it, dummy," Sammy explained, giggling, "You're slow sis aren't you?"

"Shut-up squirt," Mandy retorted.

"What do you think Mandy?" Tracy asked, now standing next to her friend, "Have I not created a superb forum in which you can discover the delights of sex?"

"But," Mandy stammered, "He's...my brother."

"That is why he is perfect," explained Tracy, "You told me the other night that you were keen on getting a boyfriend...in other words, you wanted to get laid. You told me your perfect guy would be young, a boy, because a grown man with plenty of experience in the sack would be too daunting. You also wanted a boy who you knew well, who'd respect you and who loved you. Your brother fits that description does he not? He's young, and though he fucked me to perfection last night, it was only through my careful instructions. He's really just a novice, like you. You can learn together. Plus you both love and care for each other. Isn't that right Sammy?"

"No," Sammy grinned.

"Don't be silly Sammy," said Tracy, sternly, "In all serious, you love your sister don't you?"

"Yeah," Sammy admitted with a shrug, "Yeah, I do. Even when she's irritating and nagging at me all the time."

"You need nagging," Mandy told the boy, "You never do you chores properly and you always burst into my room without knocking and..."

"Hush," Tracy said, "Stop bickering you too. Anyway, Mandy?"

"Yes?" the girl said, quietly.

"Are you up for this?" Tracy asked, "You don't have to go through with it, we can pack up, you two can get dressed and we'll say no more of this. Or do you want to let your brother deflower you, with me on hand to see everything is perfect? If you don't go through this then it could be years down the line before you finally have the nerve to go with a guy, and he might turn out to be a complete shit who'll take advantage of a quiet and inexperienced lady like you. Would it not be better to have your first proper boyfriend at some point in the future with you already being knowledgable about sex? Aside from the educational value of this little trist I've organized, it should be damn good fun too."

"Ummmm...I'm not sure," Mandy said, "Sammy's...just a kid. He's only twelve."

"I'm old enough," the boy insisted from the bed.

"He sure is," Tracy confirmed, "I took him from a test-drive last night. He fucked me three times, once in each hole. How do you like that Mandy? You're baby brother is no longer a virgin, but you are?"

Mandy thought for a moment, feeling terribly excited deep down but still full of anxiety. She was evidently trying to think of another reason to back out of this, even though her frustrated libido was screaming for her to submit to this sublime plan.

"You're up for it aren't you kid?" Tracy suddenly asked Sammy.

"I guess," Sammy replied, "She's my sister though."

"So what?" Tracy shrugged, "That's a reason in favour of my suggestion, not against it. If sex is an expression of love then why not express it to close family members? Furthermore, is your sister not charmingly pretty?"

"She's alright I s'pose."

"Now come on," Tracy admonished the boy, "Enough silly supression of your emotions. Put aside the natural instinct all small boys have to be akward and irritating to big sisters and answer me honestly."

"Yeah, she's pretty," admitted Sammy, "She's....hot!"

"See Mandy?" Tracy smiled, turning to the seventeen-year-old, "Your brother finds you stunningly attractive, and who can blame him? I'm sure he'll love your body as well. Let's see it." Without warning Tracy reached out and undid the belt of the robe Mandy was wearing.

"Tracy!" squealed Mandy.

"Stop protesting," Tracy said, stepping behind Mandy and taking the teenager's gown off. Despite her protests Mandy found herself easily submitting to her disrobing. Tracy had quickly taken her friend's gown off and she threw it into the corner, Mandy now standing naked. She looked very shy, and was blushing a great deal, but standing there nude in the middle of the room there was nothing she could do to cover her modesty. Sammy was sitting on the bed, wide-eyed with awe.

"Doesn't your sister have a nice body Sammy?" asked Tracy, stepping up to Mandy and reaching out to lightly fondle the girl's small pert tits, "Look at these breasts. Delicious aren't they? Superb pert little things, and if I'm not mistaken, these nipples feel as erect as bullets. And this flat belly...these nice firm legs...this wonderful triangle of golden pubic hair..." Tracy found herself as entranced as Sammy was at Mandy's figure, such a sweet and nubile body, firm and slender. Tracy placed her hands on Mandy's shoulders and turned her around, the girl having given up protesting, just letting her friend show her off. Mandy's back was now to Sammy. "Look at this arse!" gasped Tracy, reaching down and lightly stroking Mandy's superbly shaped little peach, "Oh my, what a behind? See it Sammy? Is this not the most beautiful rear you've ever seen. My God, if there weren't more pressing matters at hand I'd get on my knees and kiss this bum a thousand times. You really have a fantastic body Mandy, it's a crime to keep it to yourself."

Mandy turned back round, still with a look of slight anxiety on her face but visibly a little bit more confident after the very sincere and deserving praises that had just been lavished on her body.

"Mandy's hot!" agreed Sammy. His sister smile at him, shyly.

"Thanks," she shrugged.

"You're brother's a sexy little thing too," Tracy said to Mandy. She then strolled towards the bed and grabbed the bottom of the duvet and began tugging it off the bed, uncovering Sammy's nudity.

"Hey!" the boy cried. He tried to retrieve the duvet but Tracy had quickly pulled it right off the bed and she threw it to the floor. It was Sammy's turn to blush, sitting there on the bed, his slender naked body on display. Tracy's eyes went straight to boy's cock. She hadn't believed that her little brother was 'old enough', as Tracy had promised, but now she had the proof of it. From Sammy's hairless crotch his little cock stood upright, erect and hard. Mandy licked her lips, forgetting completely her own nudity. She wanted that cock, any cock, to fondle and stroke and examine...

"Your brother's saluting you Mandy," Tracy smiled, stepping up to the bed and leaning over, gently grasping Sammy's erection in her fist. She began lightly pumping it, instantly making Sammy gasp and breath deeply with joy. "Just think Mandy, just think...your naked body has done this to your brother, has given him an erection. Just by standing there naked you've made his prick, this magnificent, mysterious and complicated piece of male anatomy, go all erect and hard. Does that not give you a tremendous feeling of power, that by flashing your tits and your arse you can divert the flow of blood in your brother's body to his cock, whether he wants an erection or not, meaning your body having more control over him than his body? I think it's a simple little achievement that's often overlooked."

"That feels nice," breathed Sammy as Tracy masturbated him.

Mandy watched, intently, tranfixed by the sight of her brother being touched so intimately by her friend. She wanted to over and do it too, wanted to feel how stiff the boy's cock was. She had to admit that Tracy was right, it was a powerful achievement to make a boy's cock go hard just by showing him your naked body.

"Look at this fine cock," Tracy declared, "It'll be a fair size in a few years, mark my words, but at the moment it is a nice, slender, modestly proportioned tool, perfect for plucking cherries. It'll slip into your vagina, Mandy, with the minimum of fuss, and I'll dare say it'll enter your bum with similar ease."

"Oh heavens, I shan't take it in my behind," gasped Mandy.

"Ah, so you are considering my proposition in some respects at least," grinned Tracy. She let go of Sammy's erection and sauntered over to Mandy. Standing next to her, Tracy reached round and placed her hand on Mandy's back, running her fingers down the girl's spine and making her shiver. "I've arranged this delightful set-up," Tracy explained, "I've thrown all the ingredients together and even taken little Sammy for a test-drive to ensure he's up to the job. As such I reserve the right to impose some conditions, the primary one being that, if you are to give your conventional maidenhead to your brother, then you must allow him to run away with your anal-maidenhead too. Evolution has seen fit to grant us ladies with three holes in which, to the mutual pleasure of both parties, a penis can be inserted. Only a shy little fool would present just one or two of them to her fucker." Tracy then stepped round so that she stood directly behind Mandy. She clapped her hands to the teenager's firm buttocks and lightly fondled them. "You have a delicious behind Mandy, a superb, mouthwatering peach. It would be a crime to condemn it to nothing but one-way traffic! You shall let your brother deflower your bum Mandy, I insist upon it."

"Very well, but I doubt if I'll enjoy it," argued Mandy.

"You will enjoy it," Tracy insisted, "I'm sure of it. So sure, in fact, that I swear I'll take a year-long vow of celibacy if you don't climax just as hard when being arse-fucked as you do when being cunt-fucked."

Tracy took her hands from Mandy's buttocks and stepped round to the front of her friend. Despite being the veteran temptress and all-round nympho that she was, Tracy had never had sex with another woman, or particularly desired to. But, to her own surprise, she was totally infatuated with her beautiful friend. She reached up and ran a hand through Mandy's blonde hair, charmed at the way her young friend blushed and smiled at this seemingly innocent display of girl-to-girl affection.

"Trust me Mandy," Tracy said.

"I do," Mandy replied with complete sincerity.

Tracy smiled and abruptly turned round to face the bed, on which Sammy was sitting, nude and with his penis still very erect.

"I take it you have no objections to the plan sweetheart?" Tracy asked the boy.

"Nah," Sammy replied, casually, "Let's get to it."

"That's my boy," smirked Tracy, "Okay, lay back Sammy. Mandy? On the bed girl. You can't lose your virginity standing there eight-feet away from the only erection in the room."

Mandy smiled and walked towards the bed, yelping when Tracy playfully smacked her arse. Mandy got onto the bed, kneeling between Sammy's spread legs. She looked at the boy's erect pecker that lay across his flat belly, then she looked at Tracy for guidance.

Tracy was still dressed in her jeans and T-shirt. She considered stripping but decided against it. A teacher shouldn't be a distraction to her pupils. She hopped onto the bed as well and knelt alongside where Sammy lay back.

"Well, don't just stare at it, take it in your hand," Tracy advised Mandy.

"Like this?" Mandy asked nervously, reaching out and wrapping her thumb and forefinger around Sammy's cock, holding it upright.

"That's right," Tracy said, "Now just gently stroke it up and down." Mandy did so. "That's it...nice and slow...pump it deeply, that's right. The foreskin should completely wrap round the head of the cock on the upstroke and be pulled right back on the downstroke. Perfect Mandy. That's it. See your brother? See the effect it's having on him? The little scamp is entranced, his eyelids fluttering, his cheeks going red, his breath deepening...now pick up the pace a bit quicker. A bit faster. Good."

Mandy was enjoying this, handling her first cock, amazed at how her brother was seemingly hypnotized by physical ecstasy from this seemingly simple manipulation of his organ.

"Suck it Mandy," ordered Sammy after a minute of being jerked off by his sister.

"Say please," Tracy demanded.

"Please," Sammy said, obediently.

"Well, go for it," Tracy urged Mandy, "Take it in your mouth and suck."

"Does it taste nice?" Mandy asked, not sure about this.

"Of course. Go for it. Sammy will return the favour shortly, and I can tell you this dear, your brother is a good pussy-licker. So go on, suck his cock. Drive him wild."

Mandy held the base of Sammy's prick so that it stuck straight up and she lowered her head, taking Sammy's stiff prick into her mouth.

"Oh wow," gasped Sammy. His sister's mouth felt so warm and wet, like a slick velvet glove. He lay his head back and closed his eyes. "Mmmmmm. That's good Mandy."

Being only three-and-a-half-inches in length, Sammy's prick was easy for Mandy to deep-throat. She took her fingers from his cock, now on her hands and knees, hunched over her brother's crotch with her lips clamped round the hilt of his erection.

"Bob your head Mandy," Tracy advised her, "Move it up and down. Jerk him off with your lips."

Mandy obeyed, her head slowly rising and fallling, rising and falling.

"Uuuuuh, holy shit," Sammy was panting. He reached down and ran his hands through his sister's short blonde hair, clenching and unclenching his buttocks and matching the rythm of his sister's bobbing head, gently fucking her mouth. Soon Mandy was giving muffled moans of pleasure, getting a real thrill out of this. She sucked deeply on Sammy's cock, wanting to gobble it all down. Tracy shuffled down the end of the bed, behind Mandy, who's sublime bottom was raised in the air. Tracy had a sudden urge to see her friend's intimate area in detail, and she was not disapointed. She knelt behind Mandy, licking her lips as she admired her friend's spread cheeks, between which was a hairless, rose-pink anus, sweet and tight looking, as neat as a pin. Below it was her cunt, a narrow fleshy slit, glistening and wet, adorned with only a sparse amount of golden pubic hair. Restraining her urge to explore Mandy's cunt and arsehole with her fingers, Tracy moved back up the bed, leaning down near Sammy's crotch, watching intently as the boy's prick was sucked by his sister.

"Suck his balls Mandy," she said, "Take those little acorns in your mouth. Jerk him off in the meantime."

Without hesitation this time, Mandy obeyed. She was able to take her brother's hairless nut-sac in her mouth and such on them, rolling his balls about in her mouth, whilst she reached up and stroked his prick. The boy was being driven wild, tossing his head and moaning with pleasure.

"Careful Mandy, we don't want him to cum just yet," Tracy said.

Mandy took her brother's nuts out her mouth and knelt up. She gently stroked the boy's saliva-slick cock for a moment then asked "Shall I...put him in me now?"

"Not yet," Tracy said, "Let's get him to return the oral favours you've just given him. Budge over Sammy. Mandy? Lay down and spread those sweet legs."

The positions were arranged. Brother and sister swapped places, Mandy laying back, head propped up on a pillow, her brother kneeling between her spread legs.

"You've got a nice looking snatch sis," Sammy commented, leaning down to get a closer look, "It's not as hairy as Tracy's though, but that's cool 'cos I can see it better, all the nice lips and stuff. Mmmm. Looks juicy."

"Let's have a look," Tracy said, leaning over and joining Sammy in admiring the tender virgin cunt offered to their eyes. Mandy was watching them, noting the look of delight and awe in their eyes. She felt self-conscious at being subject to such intimate examination, but she couldn't back out now. Besides, Tracy's supreme confidence and control over everything helped Mandy relax a little.

Without having to be told, Sammy reached out and gently ran the tip of his forefinger up and down the slick entrance to Mandy's cunt.

"Ooooh," the girl wailed, a little surprised.

"Are you okay?" giggled Tracy.

"Yeah," replied Mandy, "Just...not used to being touched down there...not by someone else anyway."

Sammy was gently rubbing his sister's cunt, running his finger round in circles around the entrance. The he gently pushed the digit in, sliding it in to the first joint, then the second, and finally in to the knuckle. Mandy was breathing softly, eyes closed. Sammy pumped his finger in and out of his sister's cunt, slowly at first, then a bit faster. Tracy whispered to him "Don't forget the clit." Sammy didn't know what she was on about, so Tracy pointed the appropriate piece of anatomy out to him. Whilst sliding his right forefinger in and out of Mandy's cunt, Sammy reached out and rubbed the girl's clitoris with his left forefinger, round and round in small circles. His sister was breathing deeply now, softly panting and sighing, lost in ecstasy and devoid of any modesty as she parted her legs a little more to give her brother complete access to her cunt.

"Suck it," Tracy shortly urged the young boy under her command in a lewd whisper so that Mandy could not hear, "Suck your sister's cunt. Lick it out. Make her cum."

Sammy grinned wickedly then took his fingers from Mandy's twat. Then he leaned down and ran his tongue up and down his sister's juicy vagina.

Mandy yelped in surprise and looked down, having wondered what was going on. She began breathing deeply, her sensitive virgin cunt tingling with joyous sensations as her brother's wet tongue swept up and down over it. She lay her head back and closed her eyes once more, breathing deeply. Sammy lapped thirstily at Mandy's cunt, slurping around the entrance, before he began pushing her tongue into her, squeezing it up into her pink fleshy orifice. His sister purred with pleasure, tightening her buttocks and gently grinding her crotch into her brother's face, feeling his hot tongue explore her. Tracy advised Sammy to rub his sister's clit which the boy did without interrupting his oral attentions. Mandy was soon moaning quite audibly, gasping with pleasure, feeling a climax building up from her well attended snatch.

"Keep sucking, keep licking," Tracy commanded the boy as she knelt up, admiring the beautiful sight of the two naked siblings, one with his head between the other's legs. Sammy was making obscene sucking noises as he ate out his sister's wet slit but these were soon drowned out by Mandy's yelps and gasps of pleasure.

"Oh, ooooh, Sammy, I'm cumming," she was crying, tossing her head from side to side, "UUUUUH!"

Tracy reached out and held Mandy's hand, feeling the girl tighten her grip, clinging onto Tracy in support as she was wracked with a long and sensous climax. Mandy had orgasmed when frigging herself before, but not all that often, and besides, there is a major difference between an orgasm at one's own hand and one caused by another person. Sammy felt triumphant at having made his sister orgasm and he didn't relent in his tongueing of her vagina as Mandy's quivering thighs clamped his head in place. He dug his tongue deep into her twat, tasting her juices, hearing her crying out with ecstasy. It took a good twenty-seconds for Mandy to finally calm down. She felt exhausted, as did Sammy. He knelt up, his sister's juices glistening wetly around his mouth. He grinned at Mandy who smiled back.

"Thanks bruv," she said.

"You're welcome," smiled Sammy, "I wanna fuck now. Shall we do it? Huh? Shall me and Mandy do it now Tracy?"

"Sure," Tracy replied, "although you do need to learn how to ask for sex in a slightly more eloquent fashion."

"Let's just do it," Mandy said, sitting up, "I feel really..." She hunted for the right word.

"Horny?" suggested Tracy.

"That's it. Horny!"

Tracy positioned the youngsters. She decided Mandy would probably be more comfortable being in control so she had Sammy lay on his back and ordered Mandy to kneel astride her brother, her dripping cunt hovering over the boy's erection.

"Here, I'll guide it in," Tracy said. She reached out and held the base of Sammy's prick and pointed it upwards, the fiery tip of that throbbing pecker nudging Mandy's vagina. "Just impale yourself on it Mandy."

The teenager did so, slightly nervous but anxious to get this delightful procedure underway. She lowered herself, feeling the head of her brother's cock push into her vagina. Down and down she went, whimpering slightly as she did so. Tracy took her hand from Sammy's prick - it was now half-buried in Mandy's cunt. The girl finally pushed herself down and her snatch swallowed up her brother's erection.

"Uuuuuh, oooh," Mandy gasped, "It's in me. It's right up me."

"It sure is," Sammy smiled, "Wow! You're tight sis! Even tighter than Tracy."

Mandy spent a moment just kneeling astride her brother, sat down on his crotch with his cock in her snatch, getting used to the feeling. "What do I do now?" she asked Tracy.

"Just bounce up and down," Sammy interjected.

Mandy reached out and placed her hands flat on her brother's slender chest. She raised herself slightly, half of her brother's little erection emerging from her tight, freshly deflowered pussy, before she moved back down. She did this a few times at a slow pace, getting used to it. Then she began going a little fast, her buttocks making SLAP-SLAP noises against Sammy's slender thighs. She and her brother were soon panting and moaning, gettting into the spirit of things.

"That's it, fuck each other, fuck each other hard!" encouraged Tracy. Mandy was bouncing happily on her brother's prick.

After a moment Tracy suddenly felt she could not remain clothed a moment later. She hopped off the bed and hurridly removed her jeans, T-shirt and then her underwear. Stark naked, she got back onto the bed. Sammy had seen Tracy naked of course, as had Mandy - albeit in the pornographic magazine she'd seen the other day - so the siblings barely paid any attention to Tracy. They were both concentrating on their steamy incestuous coupling.

Tracy noticed that Sammy's arms were just lying by his side.

"Do something with your hands honey," she urged the child.

"Like what?" asked Sammy whilst his sister merrily bounced on his cock with a look of concentration on her pretty face.

"Play with your sister's tits," advised Tracy, "Look, those lovely little boobies are jiggling above you. Reach up and play with them."

Sammy did so, amateurishly fondling his sister's breasts.

"Give those nipples a little tweak," suggested Tracy.

"Oww!" wailed Tracy as her brother rather clumsily pinched her stiff red nipples, "You idiot."

"You're an idiot," Sammy told her.

"You pinched them too hard," whinged his sister.

"Now I didn't, you're just a wimp."

"Shut up."

"You shut up."

"No, you shut up!"

"Cut it out you two," Tracy said, "Sammy, try it again, but not as roughly. You have to be gentle."

Sammy did so, lightly squeezing his sister's nipples and twiddling about with them. It did the job this time, Mandy letting out a gasp of pleasure.

"Mmmm, that's nice," she commented. She closed her eyes as she continued riding Sammy's cock, the rigid member feeling so good in her tight slit whilst her brother made a fairly good job of fiddling her sensitive nipples.

"Uh, uh, uh, ooooh," she was panting, feeling a warm tingling buzz rising in her penetrated cunt, "Oh...oooooh...I think I'm gonna cum...again...UUUUUH! Oh my!"

"Yeah, cum Mandy, cum on my cock," grinned Sammy, grabbing his sister by the waist and humping his cock up into her pussy to meet her rythm, "Oh yeah! You're so hot and tight down there sis!"

"I'm cumming, oh God, oh GOD!!" wailed Mandy, "Yeah! UUUUH!!" She shuddered with ecstasy for a moment, grinding her cunt down onto her brother's throbbing pecker. Overcome with pleasure she then slumped over Sammy, head resting on his shoulder, breathing deeply, her naked body shuddering. "Oh wow, that was a good orgasm."

"It sounded it," smirked her brother, "I wanna go on top now. Shift over Mandy. Come on, push off."

"Hang on will you, I'm getting my breath back."

Mandy rested for a moment on top of her impatient brother before she eventually got up, pulling herself off of Sammy's erection which was shiny and wet with juices. The pair switched places so that Mandy was on her back, legs spread.

"Yippee!" cried Sammy as he practically flung himself onto his sister, darting his prick into her slit.

"Careful," complained Mandy.

"I can't be careful, I'm too horny," insisted Sammy, laying atop his sister in the missionary position, their bodies pressed together, "Oh wow sis, you're pussy is so tight and wet. Nnnng. Yeah! I'm gonna fuck you hard!"

Sammy began to shaft his sister, his pale bottom rising and falling between her parted thighs, panting with the effort of ramming his little pole in and out of her slit.

"Uh, uh," he was grunting, "Holy shit, I'll cum soon. Oh yeah!"

Mandy was moaning with pleasure as well, reaching round her brother and embracing him, holding his body to hers.

"Oh Sammy, harder, faster," she was purring in a soft voice, "Oh yeah...uuuuh."

"I'm cumming...oh...fuck!" Sammy gasped, "NNNNGGG!" He drove his hard prick into his sister's clasping snatch one last time and spurted his sticky seed into her womb. "AAAAH! SHIT! Oh yeah!" He and his sister had their chins resting on one-another's shoulders, each of the emitting strangled cries of joy into the other's ear as they both climaxed.

"Holy shit, I came again," spluttered Mandy as her brother pumped the last of his jizz into her cunt, his body tensing and relaxing as the last of his sperm left his throbbing erection.

"That was a great hump," giggled Sammy in conclusion, "Cheers sis." He dismounted Mandy, his flaccid, cum-leaking cock slipping out of her wet, cum-leaking vagina.

"You need some lessons in being a little more romantic Sammy," grinned Tracy, reaching out and stroking the boy's back as he knelt next to her. Mandy sat up, looking rather exhausted but - to Tracy's delight - with a big grin on her face.

"Wow, that was fantastic!" she declared, "Oh wow. I came twice! I didn't think girls came all the time."

"They don't," Tracy explained, "unless they have a very attentative fucker. Like Sammy here."

Mandy knelt up, facing her brother.

"Thanks Sammy, that was cool," she told him.

"Me and my sister are great at sex and stuff," boasted Sammy.

"Not that great," said Tracy, "You need to kiss a bit more for a start, not just look dumbly at each other whilst you screw."

"Ugh, I'm not kissing my sister, gross," whined Sammy.

"I'm not kissing you either you ugly brat," retorted Mandy with a cheeky smile.

"Screw you!"

"You just have."

"Shut up."

"You shut up."

"Oh, kiss and make-up," sighed Tracy, "Go on. Have a smooch."

Mandy took the initiative and leaned over and planted a kiss on her brother's lips, a brief one, before pulling back.

"You're not a good kisser," Sammy insisted, even though it was obvious he'd enjoyed the gesture from his sister.

"Neither are you," Mandy told him, "You didn't use your tongue like you're supposed to."

"Eww, I'm not sticking my tongue in your gob."

"You stuck it in my pussy."

"Yeah...well...it tasted nice," argued Sammy, "I bet you can't French Kiss anyway."

"Bet you can't either," Tracy interjected, "Let's find out." She leaned over and clamped her lips to Sammy's and gave him a passionate snog, slipping her tongue into the boy's mouth. He was a little surprised but soon got into the swing of things, breathing deeply through his nostrils with Tracy's face pressed to his. He pushed his tongue into her mouth and had a good root around, their tongues clashing, an odd sensation for Sammy...but a nice one.

After twenty-seconds, Tracy pulled away from the boy.

"Not bad," she said, "Not bad at all."

"I'm a better snog than Mandy I bet," bragged Sammy.

"Looks like I'll have to put that theory to the test," Tracy said. She turned and leaned over to give Mandy a passionate kiss, the blonde teenager taken by surprise. She just knelt there, blue eyes wide with shock as her friend snaked her tongue into her mouth. She didn't react as quickly as her brother but soon she was responding, tentatively tongueing Tracy's mouth. She reached out, instinctively pressing a hand to Tracy's breast. Sammy was watching this in awe. No male, no matter how young, can ever find themselves not turned on at the sight of two pretty young women kissing each other. He felt his cock twitch and begin to stiffen once more.

Tracy eventually pulled back from Mandy, licking her lips.

"Mmmm, nice," she said, trying to act casual even though she'd been taken by surprise by her own actions.

"Yeah," Mandy agreed, nervously. She looked down, blushing, all shy.

"Right then," Tracy began, clapping her hands together and rubbing them, "Time for the next lesson I think. Look Mandy, your brother's cock is raising it's glowing head once more. Give it a few strokes and it'll be loaded and primed once more."

Mandy reached across to her brother and, with more confidence than earlier, grasped his prick. She pumped it in her small fist and felt it rapidly stiffen until it was as hard as steel.

"What are we gonna do next?" Sammy asked Tracy whilst his sister masturbated him, "Am I gonna do Mandy up the bum?"

"You sure are," Tracy replied, "Mandy? Time to grant your brother access to your back-door."

"Oh my," stammered Mandy, sounding like a silly Victorian-era virgin, "Do I have to? It sounds like it might be painful. Sammy's pecker may not be fully grown but it'll still hurt me going up a hole so small as...the one 'back there', surely."

"Never fear," Sammy declared, "I'll grease it up. That's what Tracy did the other night, she slathered loads of skin moisterizer or somethin' over my willie and it slipped up her arse nice 'n easy."

"Absolutely," agreed Tracy, "I have the ingredients here ready." She turned and took a tube of KY-Jelly from the bedside cabinet and removed the top. She squirted some onto Mandy's hand and ordered the girl to apply it to her brother's erection, which she did, greasing it up thoroughly. "Right Mandy, on all fours."

Still a little nervous about the proposed plan, Mandy turned and got on her hands and knees, her delicious behind raised and spread, her rosy pink anus winking from between her superly shaped firm cheeks.

"Grease up your sister's arsehole," Tracy ordered Sammy, squirting some of the lubricant onto his forefinger. Sammy knelt behind his sister and touched his grease-slathered digit to her anus, which twitched instinctively.

"Ow, that's cold," complained Mandy.

"Stop whinging," moaned Sammy, "I'll warm it up soon anyway!" He began running his forefinger round Mandy's arsehole, slicking it up with the lubricant. On Tracy's orders he gently pushed the tip of his finger into her arse, loosening the sphincter up whilst simultaneously greasing it thoroughly.

"That should be enough," Tracy told him. She was breathing deeply and was feeling incredibly horny, looking forwards to being a spectator to the forthcoming act of incestuous, sodomistical defloration.

"Yay, here we go," grinned Sammy. He knelt up, his little erection wobbling erectly between his sister's quivering buttocks.

Tracy leaned over and clapped her hands to Mandy's bum-cheeks, spreading them a little further.

"Do you see the hole?" she asked Sammy in a lewd whisper, "Do you see it? Penetrate it my boy. Be gentle, your sister is a novice after all, but don't pay too much attention if she does whimper a bit. This operation is always accompanied by some discomfort, whether a girl is taking a cock in her arse for the first or the thousandth time. Go slowly but don't delay too much. That cock needs to be buried to the hilt in your sister's rectum. Don't lose sight of your objective."

"Okay," sniggered Sammy, thinking that Tracy sounded like some sort of lustful military commander, laying down a plan of action. He gripped the base of his cock and guided the head to Mandy's lubed up anus. He pushed, firmly, paying close attention to his progress. His cock-head encountered some resistence for a moment but then suddenly popped through Mandy's sphincter. The petite blonde yelped, but she did not beg her brother to retreat. She kept her cool, stayed firm and readied herself for more. Fortunately, once the cock-head has made it's way past the sphincter, the difficult part of anal penetration has passed. The anus is stretched open to the required diametre, is required to stretch no wider, and all that remains is for the length of the cock to be fed into the subject's bowels which is, of course, the most delicious of feelings.

"Whoa, it's going up," grunted Sammy, holding his sister's hips as he pushed his pelvis forwards, watching his greased prick slide up and up into his sister's anus.

"Oh God I can feel it," panted Mandy, "Oh...oh...oooooh. That's...good!"

Tracy took her hands from Tracy's buttocks and she knelt back, reaching down to finger her steaming, dripping cunt. She stuck two fingers up there and masturbated as she watched Mandy's anus swallow up her brother's erection. Finally, Sammy accomplished his goal. The whole length of his small but very stiff tool was buried up his sister's anus. The fact that he had no pubic hair and the fact that Mandy's anus was naturally free of any hair either meant that Tracy had a completely fresh and unhindered view of the anal-penetration, every glistening detail visible of the point where Sammy's cock was wedged in his sister's anus.

"Holy shit that's tight, fuck," gasped Sammy, "Oh wow sis! What an ass! Are you okay down there?"

"Fine, yeah," breathed Mandy, bent over, "It feels good. It feels great! Christ!"

Sammy began to withdraw his prick from his sister's arse then thrust back into her, pulling back and thrusting in, over and over, building up pace. He was soon grunting with adolescent lust whilst his sister, her face buried in a pillow, just emitted muffled squeaks and cries of pleasure. She was enjoying this no end, was unable to remember the time just moments earlier when she'd been so foolish as to hesitate to be subjected to this most delicious of acts.

"Harder Sammy, harder," she was soon begging her little brother, "Oh, oh, oh...AAAH! Yeah!"

Tracy fingered her cunt deeply, breathing hard, watching the sublime performance of her two pupils. Mandy had now raised her head and was looking straight ahead, eyes half-shut, mouth open as she gasped and gulped for air. Her small titties were jiggling beneath her. Sammy was working up a sweat, his lovely pale, pre-teen body slick and glistening, his dark hair sticking to his damp forehead. His pelvis was clapping against his sister's arse as he sodomized her lustfully and Tracy, fingering herself desperately and moaning, leaned to oneside to get a better view of Sammy's cute boy-bum. Overcome with lust, Tracy cast aside the promise she'd made to leave Sammy and Mandy alone. She shuffled over next to Sammy and, with two fingers buried in her sopping cunt, she leaned over and kissed his bum. She kissed it all over and licked those cheeks, soon bringing herself to an orgasm with her busy fingers. Sammy was rather amused at Tracy kissing his arse but mostly he was busying himself buggering Mandy. He felt a little tired so he slowed down, just running his prick to and fro in his sister's nipping tight anus at a leisurely pace.

Her self-inflicted orgasm over with, Tracy got right behind Sammy and placed her hands on his bum-cheeks, spreading them and revealing his arsehole which, like Mandy's, was pink and hairless and tight-looking.

"Oh my, what a lovely arse," Tracy murmered to herself. She plunged her head forwards, sticking out her tongue and licking Sammy's butt-hole. The boy yelped with surprise then began breathing deeply, surprised at how good it felt to have a woman's tongue lapping at his rear-hole. He was fucking Mandy's arse with deep slow strokes, meaning his pelvis was not humping back and forth too much, enabling Tracy to easily lick his arsehole. Then she began to push her tongue up into Sammy's arse, pushing it past his sphincter and wriggling it into the child's bowels.

"Holy shit," he gasped, "Wow that's good!!"

Mandy wondered what on Earth was happening back there but she didn't bother to look. She was too busy enduring the most delicious of sensations, a nice stiff cock fucking in and out of her rectum. Sammy closed his eyes and enjoyed the double-pleasure of having his cock wedged in one girl's arsehole whilst another girl's tongue was wedged in his. Tracy was eating out his delicate bum, sticking her tongue far up his rectum, darting it back and forth. She was fingering her pussy in the meantime and after a moment she bought herself to another orgasm, a brief but powerful one. Her cries of pleasure were muffled on account of her face being buried between Sammy's cheeks. Finally she slid her tongue out of the twelve-year-old boy's anus and moved aside, out of breath.

Sammy took the opportunity to start fucking Mandy faster, building up his pace until he was vigorously buggering her. Mandy was crying out ecstatically at this return to a more energetic pace, urging her brother on. "Oh Sammy, harder...faster...oh yeah...that's good!"

"I'm gonna blow!" her brother suddenly cried, "Oh GOD! UUUUUUH!" He drove his cock to the root in Mandy's rectum and just knelt there, cock rammed up her arse, head tilted back, eyes shut and his mouth open and producing a long cry of satisfaction as he emptied his nuts. His cock pulsed hard in the depths of Mandy's shit-pipe, squirting out slimy wads of hot cum. Mandy pushed her arse back onto Sammy's cock, tightening her sphincter round the hilt of her brother's dick, actually able to feel the gooey outpourings of semen shooting up into her intestines.

"Fill me up Sammy, fill me right up," she urged her brother.

"Oh yeah, that's me empty," Sammy grinned, having ejaculated the last of his cum, "Fuckin' hell, that was good! I'm wasted!" He eased his dick from Mandy's anus, which hung open slightly, slick with KY-Jelly and leaking jism. Sammy lay back, resting his head in Tracy's lap, the naked brunette stroking Sammy's hair as he snuggled up to her. Mandy just fell forwards, face down, breathing hard and grinning to herself. She'd evidently enjoyed her arse-fucking.

The trio decided it was time for a break. Tracy cooked up a pizza and they had their lunch on Tracy's bed, all of them naked. They chatted happily, music playing on the stereo. It was mostly Tracy who did the talking.

"You should use each other as guinea-pigs for all sorts of sexual experimentation," Tracy explained to the brother and sister, both of whom looked at her with crystal blue eyes entranced with the knowledge and advise that was being dished out to them by this liberated woman. "As delicious as this incestuous union of yours is, it's not exactly something you can rely on forever. It'd cause a bit of a scandal if you were to get married or something! Although, having said that, you two argue and bicker like a married couple. But anyway, you'll both go your seperate ways some years down the line, and all your antics with each other should render you experts in bed!

"You, Sammy," continued Tracy, turning towards the twelve-year-old, "will soon learn how to fuck a woman like a master. It's not just a case of having to learn how to please a woman perfectly, how to fuck her in the best positions, how to eat her out and finger her to orgasm, and most of all how to master your own body so that you can hold back your orgasm for hours, it's a case of knowing when to be the master and when to be the slave. When your sexual partner - whether it's Mandy or me or a future girlfriend - tells you to do something you'll do it, and when she's not in the mood to be assertive you'll plunge in and do your own thing with her. When all else fails just follow your instincts. Go by trial and error. If you suck, nibble, lick or fuck this part of Mandy's body or that part, and she screams the house down with an almighty climax, you'll know to repeat that particular activity in future.

"You'll have just as much to learn as well Mandy. It's the twenty-first century after all; a girl's contribution to sex is no longer to just spread her legs and hope the cums before her fucker. Through experimenting with your brother you'll find out how to drive a guy wild, when to tease him and delay his relief and when to make him cum in buckets, whether it's with your cunt, your arse, your mouth or your hand. The main thing Mandy is to free your mind as well. Completely cast aside any lingering prudishness and shyness. Resolve to try every sexual act at least once, and always rate them by how much pleasure you derived from them rather then whether you - or anyone else - would think it 'wrong' or not. Also, whilst some women are horrified by the sexual acts sometimes asked of them by men, you should be like me, and merely be jealous that the male sex is so infinitely imaginative when it comes to methods of attaining orgasm. If you can't surpass a guy's perversions, at least be complicit in them. If your brother decides he'd like to jerk off whilst you pee over him ("Ewwwww!" cried Sammy and Mandy in unison) then squat over the kid and pee away! Drench the little rascal and then demand he returns you the favour. Likewise, never be embarrassed to make a suggestion of your own. Feel like having your arsehole licked? Then bend over, spread your cheeks and ask Sammy to get down and lick away! In fact, that's one thing you two should indulge in prior to buggery. Saliva the best lubricant there is, and the many men I've met who are avowed fans of anal-sex all insist that, whether they prefer women or little boys, slurping on an anus is the best appetizer to indulge in prior to fucking it."

"Oh, we'll try and do everything," Mandy promised, "Won't we Sammy?"

"That's right. Although I'm not sure about that peeing thing. Ewww. Weird!"

"I've heard it's quite nice," Tracy said.

"Have you indulged in it?" asked Mandy.

"Once or twice," Tracy replied, "I've done worse! I remember when I was eighteen and travelling around the world. I spent a while in Spain because I'm fluent in that language. There was a Priest who lived near to where I was staying. I'm no fan of religion, I find that whichever flavour it comes in, religion is laced with mysogony and prudishness. It's like an enormous chastity belt. But anyway, this Priest was a handsome man even though he was approaching fifty. I took it as a challenge to seduce this supposedly chaste man of God. I went to his house one evening, pretended I was religious and having some crisis of faith which required I attend confession immediately. He invited me in and I proceeded to admit to various sexual exploits, all true, and all in fantastic detail. He saw through my plan and denounced me as a slut, called me a wicked child for coming in his house and getting him all flustered. I demanded to know if I'd succeeded and he declared 'Look for yourself you dirty bitch' and whipped out his cock, very long and very stiff. After promising him that whatever happened that evening was between him and me, that he had no fear of being found out, I got him to submit to some sexual fun. He at first wanted me to just suck him off, but I told him not to be daft, that he had a teenaged nympho willing to do whatever he wished, that he should let his imagination run riot. He confessed, in barely a whisper, that he wanted me to bugger me, although as an appetizer he requested that I shit into his mouth."

"Did you do it?" gasped Mandy.

"Of course!" Tracy replied, "There's no such thing as a sexual act that is gross or indecent. It's all relative. What's disgusting to one person could be the most arousing thing in the world to another. Like I said earlier, a girl should be complimented by what is demanded of her, pleased that a man sees fit to bestow upon her the honour of playing the supporting actress in his most outrageous fantasy. If a man wants to eat my shit then I'll gladly feed him! The Priest lay down, I squatted naked over his face and I happily squeezed out a big turd. No sooner had it plopped into the Father's mouth than he'd gulped it down. This made him even more aroused and he promptly bent me over and sank his lance into my bum. He buggered me vigorously and once he'd spunked up in my bowels he had me lick his shitty cock clean. I did so with pleasure, and with such skill that this supposedly celibate man of God grew stiff once more, obliging him to sodomize me for a second time, although on this occasion he pulled out at the last minute and jerked off in my face, showering me with cum and accusations of being a whore at the same time. After cleaning myself up and dressing, I thanked the Father for a lovely evening and left. I did not see him again."

"Cool," giggled Sammy, "I bet you've got loads of dirty true stories Tracy."

"I have," she confirmed, "I've done so many outrageous things I often lose track of them! I've done things that'd make a German porn-starlet blush. And here's me, only twenty-one. I have a few decades of fucking left in me!"

"What's the kinkiest thing you've ever done?" asked Sammy.

"Hmmmm, I'm not sure," Tracy pondered, "It's difficult to choose from all the fun I've got up to. One of the most enjoyable times was on my sixteenth birthday when I entertained four neighbourhood guys. They were all in their thirties and married, thus compelling them to keep their part in my birthday celebrations a secret. They fucked me all evening, obeying every command, enslaved to my lust. I drained their balls dry! At one point I had all four of them fuck me at the same time."

Mandy did a quick bit of arithmatic. Four men = four willies. One girl = three holes. She frowned. "How d'you manage that? Where'd they all go?"

"Simple," Tracy grinned, "Two in the cunt, one in the arse and the fourth in my mouth."

"Oh," commented Mandy, quietly. She felt a bit jealous of Tracy, knowing that her friend had indulged in all these sordid activities. However, Mandy realized that she was younger than Tracy by four-years, and had only just started on her sex-life. She silently vowed to equal her friend's illustrious career. She'd still need some time to get a bit more confidence, to be more at ease with boys, but frolicking with Sammy would certainly help her to conquer such barriers.

"Come to think about it," continued Tracy, whistfully, "it's a shame that, on that sordid evening, there weren't an extra couple of guys available so I could have jerked them off, one in each hand. I'm sure a seventh guy could find somewhere to reside his erection too, even it was to just wank off into my hair. Oh, that would be heaven, to be surrounded by pricks, stuffed with them, rammed in every hole, squirting cum in me, over me...delicious cocks! Beautiful fucking cocks! Big and small, I love them all." She leaned down and slurped on Sammy's prick. "Mmmm," she said after a moment of sucking, "I love cocks. I live for them. I detect a hint of life in this prick Sammy. It's been over an hour since you last blew your nuts. Are you up for one last ejaculation before we bring these proceedings to a close?"

"I sure am!" grinned the twelve-year-old boy, triumphantly stroking his penis which was, indeed, growing hard once more thanks to the proximity of two naked ladies, and especially after having been entertained and enthralled by Tracy's lurid anecdotes.

"Right then," Tracy said, "What about you Mandy? Have you regained your strength for some more fun?"

"Yes," Mandy replied, smiling shyly "What are we going to do?"

"Shall I cum in my sister's mouth, I haven't shot my load in there," Sammy observed.

"We can leave that for now," Tracy replied, "I think it's time for an external cum-shot."

"What's that?" frowned Mandy.

"Have you ever seen a hardcore porn movie?" asked Tracy. Naturally, Mandy and her brother shook their heads. "Well, usually at the end of a scene a guy pulls his cock out of the woman and spurts his cum all over her. It's artistic licence or somethin' I guess! Anyway, that's what we'll do here. Sammy will ejaculate over you Mandy, over your body. That way you can see, close up, the magical sight of a boy's penis shooting forth it's lovely juice. It's a lovely sight, only equalled by the beautiful feeling of having slimy blobs of spunk splattered over your flesh."

"Cool," Sammy was grinning, "So I just wank all over my sister?"

"Not right now," Tracy said, "You have to heat your cock up first with some fucking. And not just by fucking your sister either. I've granted Mandy exclusive use of your cock this afternoon so far, but watching you two screw has turned me on so much, I'm desperate for cock. My holes are positively itching to be penetrated. So here's the deal. Mandy and me will get on all fours alongside each other and present out cunts and arseholes. Sammy? You will fuck us each in the cunt, then in the arse, spending a few moments in each hole, careful and considerate not to ejaculate. Then, when your sperm is boiling up and ready to explode, you shall pull out and masturbate all over your sister's stomach and breasts. Everyone cool will this plan?"

"Yeah!" replied Sammy.

"Sounds cool," smiled Mandy.

"Into positions kids," Tracy said. She got onto her hands and knees, Mandy emulating her.

"Oh wow, what a fantastic view," giggled Sammy, kneeling and playing with his erection as he stared at the two young ladies bent over in front of him, two delicious bottoms awaiting his attention. They were both fantastic arses, Mandy's slightly more delicate and smoother than Tracy's, her rosy arsehole completely bald whilst Tracy's had a nice halo of dark hair. Their cunts hung, pink and wet, beneath their shit-holes, once again Tracy's being hairier than her comrade's.

Sammy detected both girls were itching for a fuck, slightly wiggling their behinds to capture his attention. He decided to fuck Tracy first, as seen as she'd not yet been fucked this afternoon. The boy got up behind the woman and easily slid his pecker into her clasping cunt.

"Aaah, yeah," Tracy purred, "That's the spot! Oh fuck, I've been dying to be fucked all afternoon. Uuuuuh! Come on Sammy, fuck me, fuck me hard! Shaft my cunt! Just don't shoot your load sweetie."

"I won't, don't worry," Sammy promised as he held Tracy's hips and began to fuck her. He slid his throbbing pecker back and forth in her vagina, which felt slippy but still tight and affording a heavenly grip on his shaft. He pumped her pussy, grunting with childish delight as he fucked her, Mandy on her hands and knees alongside Tracy and patiently waiting her turn.

"I God, I'm gonna cum," Tracy announced a moment later, "Holy shit, oh fuck....uh, uh, uh...NNNNG!" She tossed her head, closed her eyes and belted out long cries of ecstasy as her body was shaken with a powerful orgasm. Sammy dutifully shafted Tracy's snatch throughout the apogee of her pleasure, the boy having quickly adopted the very mature attitide of wanting to please a girl as much as himself when fucking.

Sammy spent five-minutes cunt-fucking Tracy before he felt a sudden urge to give his sister the same treatment. He also sensed Mandy's impatience and, contrary to his normal desire to antagonize and annoy her in his usual childish manner, he felt eager to satisfy his dear big sister. The boy slipped his prick from Tracy's pussy and hopped over to Mandy. He knelt behind her and guided his cock into her tight cunt. Both of them let out a long sigh of satisfaction and, within moments, Sammy had attained a good pace, gripping his sister's slender hips and pumping his cock into her hot slit. Mandy arched her back and flung her head back, moaning and spluttering with barely contained delight.

"Fuck me Sammy, fuck me hard," she wailed, "Oh yeah, oh God that's good!!"

Sammy obeyed, concentrating on really going for it, fucking his sister for all he was worth. The youngster did not have the stamina to keep it up for too long though and he began to slow down after a moment.

"Time for some bum-fucking," he giggled, childishly, sliding his erection out of Mandy's slit, "Where's the KY-Jelly stuff?"

"Oh, we don't need that," said Tracy, still on all fours like Mandy, arse thrust out, "Your cock will be nice and wet with pussy-juice. Just ramm it in to my arse, I can take it, and your sister will probably be able to as well."

"I'm sure I can," agreed Mandy, "My bottom is so desperate for being penetrated that I don't care if it hurts a little bit. Hurry up Sammy," she continued looking over her shoulder at the youngster, "us girls need bum-fucking."

"Yeah yeah, gimme a minute will you," whined Sammy as if he was harassed. He got up behind Tracy, suddenly smiling as he remembered how good fucking a girl's arse felt. He guided his cock to her twitching anus, swiftly slid the cunt-juice slick head into that willing hole before slamming it right in to the hilt. "Oh yeah Tracy, I'm right up there! Right up your arse. Wooh! Yeah! That feels so cool. Mandy will get this treatment next."

"I hope so!" his sister smiled.

With Tracy purring with pleasure before him, Sammy began sodomizing the hot young lady, fucking his cock far into her rectum. He was shafting her arse with deep strokes, and on a few occasions his prick slipped completely out of Tracy's back-door, obliging him to ram it back in again.

After a few minutes of buggering Tracy, Sammy felt the first hints of his climax hovering on the horizon. He took Tracy's orders for him not to ejaculate very seriously and the boy slowed down his humping to allow his cock to cool off. Then he withdrew from Tracy's anus, moved over to Mandy and slid his tool into her rectum. Mandy was able to take it easily, her brother's cock slick with juices. Also Mandy had not been lying when she'd declared that she was so horny back there that any discomfort would be negated by her desire for cock. The pretty blonde seventeen-year-old was soon sighing softly with joy as her brother energetically fucked her deep in the arse.

Eventually, Sammy was straining to hold his semen back. Lodged in his sister's shit-chute, his prick was a super-sensitive pole, a hard, hair-triggered little cannon pulsing furiously, ready to unleash it's load.

"I gotta cum," he declared, withdrawing from Mandy's bum.

"Into positions kids," Tracy ordered.

Mandy flipped over, laying on her back, propped up on her elbows and looking down the length of her tender nude body. Sammy knelt astride his sister's lower belly, his hairless nut-sac hanging over her pubic area, his cock thrust outwards over her naval.

"I'll direct the pump if you'll allow me Sammy," Tracy said, kneeling next the siblings. Without waiting for a reply she reached over and wrapped her thumb and forefinger round Sammy's throbbing cock. She pumped the twelve-year-old's erection swiftly, snapping the foreskin back and forth. With her other hand she reached round and slid the forefinger up into Sammy's arse, burying the digit up to the knuckle in the child's tight anus, making him yelp with delight. Tracy knew exactly how to bring a boy off to a perfect climax.

"Uuuuuh, uh, here it is," Sammy was gasping, "Holy shit! UUUUUUH!"

With his sister staring with wide-eyes full of awe, Sammy began to shoot his sperm. The slimy ropes of salty sperm flew from his pounding pecker, flying through the air and splattering down across Mandy's tits and belly. Tracy frigged the boy, her arm pumping swiftly, eager to drain the kid's nuts. Sammy almost hunched over, his climax more powerful than he'd imagined, his cock shooting out more spunk than he'd imagined he had in his little balls. Finally the flow ended. Tracy gently squeezed and stroked the flaccid organ, a few last drops of jism dribbling from Sammy's piss-hole and landing in Mandy's belly-button.

"Oh my, I'm drenched," giggled Mandy, admiring the sperm that had showered her torso. There were long slashes of cum, large puddles, small blobs...in short, a varied mess of fuck-sauce that moments earlier had resided in Sammy's balls. Mandy lay her head back and enjoyed the feeling of all the semen quivering on her torso, some of it beginning to run off her body, oozing wetly down her sides and soaking into the bedcovers. Tracy, meanwhile, had taken Sammy's limp dick into her mouth and lapped it clean whilst still fingering the boy's arsehole.

A half-hour later, the trio of youngsters were all cleaned up and dressed. Mandy and her brother had to get home for dinner.

Mandy and Tracy stood in the hallway whilst Sammy had gone upstairs to the bathroom.

"That was really great fun," Mandy told Tracy, "Thanks."

"The pleasure was all mine," insisted Tracy, "And Sammy's too of course. That little scamp had the time of his life. You two randy kids are gonna take my advice and screw at home aren't you?"

"Of course," Mandy promised, "We both had a good time so I guess there's no reason not to continue at home. Our parents go to bed fairly early usually so I can sneak Sammy into my room. Just as long as he keeps the noise down. It'll be fun."

"Invite me round whenever you can too."

"I sure will! Whenever our parents go out Sammy and me will let you know so you can come over. And we can come over here when your parents are out."

"I hope to move out soon, get my own place," Tracy explained, "then we can have threesomes like today's on a regular basis! Listen Mandy," continued Tracy, in a slightly hushed tone of voice as she reached out and lightly stroked her younger friend's hair, "if Sammy is ever out with your parents, leaving you alone, you could still invite me over. We could...y'know....get it on ourselves."

"I'd like that," Mandy smiled, shyly, "I think...we could have just as much fun together without a guy around." She licked her lips as she admitted to herself just how attractive she thought Tracy was. She had no doubt that, like Tracy, she'd generally prefer guys for sex, but her barriers of modesty had been broken down completely and her underlying lust and curiosity for another girl was breaking through. "You can teach me all about girl-on-girl fun," she added with a giggle.

"Oh, I can't teach you that," pointed out Tracy, "I've little experience of that myself! None, in fact. I've never considered getting it on with another girl, but only because I've never met one as pretty as you."

Tracy leaned forwards and gave Mandy a gentle kiss on the lips, a gentle, passionate and loving kiss.

"Oi, stop snogging my girlfriend," Sammy complained cheekily as he came down the stairs and into the hallway.

The two girls parted, Mandy blushing but Tracy not in any way bothered at having been caught.

"Hey, I'm not your girlfriend," Tracy smirked, "We're just fuck-buddies."

"I wasn't referring to you as my girlfriend," Sammy insisted, "I was referring to Mandy. Come on sis. I'm your boyfriend and I demand that you stop getting it on with other women. Or, actually, I demand that you at least let me know when you're getting it on with another woman so'z I can watch and jack off!" He pinched Mandy's bottom.

"Oi, you cheeky git," giggled his sister.

"Let's go, I'm hungry," Sammy said.

"Okay, we're off then," Mandy said to Tracy, "See ya." She gave Tracy another kiss.

"By Tracy," Sammy said, standing on in his tip-toes and puckering his lips.

"See you sweetie," Tracy chirped, giving the young boy a kiss and naughtily reaching round to pinch his bottom.

The siblings piled out the house, Tracy standing in the doorway for a moment, grinning at the way Sammy offered to race his sister home then clearly sulked when she sprinted past him with ease. Tracy shut the door and decided to have a nice long bath, where she intended on frigging herself silly whilst contemplating the fun that she'd had that afternoon, and all the fun to be had in the future.

That evening, Sammy went to bed at nine, feeling tired. He drifted off to sleep under his Star Wars duvet but awoke at eleven when he heard his sister going to bed and, just a few minutes after that, his parents went to bed too.

Sammy lay in his bed, suddenly wide awake. He felt horny as he thought over the events of the day. The twelve-year-old reached down and thrust his hands into his underpants, playing with his small pecker which quickly grew hard. His sister had seemed as eager as he had to get up to all sorts of fun together, such as when their parents were out or in bed, and it seemed like as good a night as any to start.

After waiting for a short while, to give his parents time to go to settle down, Sammy slid out of bed.

Suddenly, he heard movement outside. He could tell it was Mandy's bedroom door. There were soft footsteps before Sammy's own door was quietly opened.

It was Mandy. The pretty seventeen-year-old wore just a thin, almost transparant white nightgown.

"Hi," she whispered.

"Hi sis," grinned Sammy, standing there in his Superman underpants, the outline of his pulsing little erection visible through the thin cotton material. He could tell his sister had the same idea as he'd been having.

"Wanna come into my room?" asked Mandy in a hushed voice, "It's further away from mum and dad's room so we'll be okay in there."

"Sure."

The horny boy scurred out of his room, following his sister into her's. Mandy closed her door. If they were caught by their parents she could claim Sammy came into her room to sleep because he'd had a nightmare. The boy hadn't done that since he was about six, but the lie would be believed. Probably.

Sammy slipped off his pants, his slender nude body illuminated from the soft pearly glow from the lamp by Mandy's bed, his tender erection throbbing and stiff. Mandy removed her gown, totally unashamed about her body.

The siblings hopped into bed, diving under the soft pink duvet, embracing and giggling mischievously.