Pam Fulton and her twin brother, David, had been working for several days now, cleaning out the downstairs bedroom. It had belonged to Steve, their older brother. Steve had gone off to college, and Pam was eager to get his room, since it was larger than hers, and easier to sneak back into the house if she was out too late with a boyfriend.

Dave did most of the heavy lifting and moving, while Pam laid out the room's decor. Being very close, the kids laughed, teased and flirted a lot, arguing playfully over the number of times things were moved. Pam was wearing her light blue cutoffs, the ones with holes on her ass, and every now and again Dave took great pleasure in sliding a finger through to tickle and fondle his sister's tight young ass. At fifteen, Pam had a firm, trim body, and the shorts made her ass look round and inviting, even to her brother.

With her old room empty, Pam and David cleaned the walls and windows, then got ready to shampoo the carpet. They were half way through when their mother came in.

"Hey, great job, kids!", she beamed.

"Thanks, Mom," they chorused.

Karen Fulton was almost thirty-six and a mother of three teenage children, but she looked much younger. Pam's friends often complimented her on it. She'd even caught some of David's friends staring longingly at her firm ass or tits when they didn't think she was looking. And she couldn't be sure, but Karen thought she had even seen David ogling her once or twice. She didn't mind, if anything she was flattered at the attention. It pleased Karen to know that she could still excite adolescent young boys despite the age difference. Regular aerobics and a strict vegetarian diet had kept her figure just as slim, trim and appealing as the day she married, her husband Frank.

Frank had driven Steve to college, and since it was a long trip, he'd decided to stay overnight and return early the next day. Already, Karen wished that Frank had taken her advice and let Steve take the bus, but Frank wanted some time to talk to Steve so Karen relented. She had been feeling particularly horny all day, and now that Frank had gone she would deeply miss his presence in her bed tonight.

Even after eighteen years of marriage they enjoyed a regular and fulfilling sex life, but Karen found she needed sex at least once a day or she became exceedingly randy. On such occasions she masturbated, either with her fingers or the vibrator Frank had bought her, but it never really took the place of a hard throbbing cock.

Karen watched the twins work, and in her present frame of mind she couldn't help notice how David's tight young ass nicely filled out his shorts. He had removed his shirt, and his strong chest and thigh muscles flexed deliciously as he worked. Then, Karen noticed the considerable bulge in the front of David's tight pants. Her pussy tingled and began to moisten automatically at the alluring sight of a hard, male crotch. For some reason, until now, she hadn't realized what a hunk her own son had grown into.

For a split second, Karen pictured him naked, his stiff young cock ready for action... hot and hard and throbbing. Just as suddenly, guilt washed over her and Karen quickly dismissed the incestuous thought from her mind, announcing instead that she was going to do some shopping. It was the only thing that seemed to calm her down when she got this horny.

She asked the twins if they wanted anything from the shops and Pam made up a short list of things that they needed. Windex, paper towels, some spot remover, and a new vacuum cleaner bag. She also made a remark that Steve wouldn't recognize his "pig-sty" of a room when he came back from college. Her mother laughed, taking the list.

"I've got to stop at the cleaners too hon. Do you have anything that you want taken in?", she asked.

"Oh, thanks for reminding me.", Pam said, darting downstairs and fetching her blue dress. A few minutes later, her mother departed out the front door, telling them she'd be back in about an hour.

Pam squatted down by the rented rug shampoo machine, reading the directions on the bottle of soap. She had just finished reading when David's hands slid around her and cupped her firm, full breasts in his hands. She let him feel her up for a few seconds, pretending that nothing was happening. It was only when Dave slid a hand down to the crotch of her shorts and began to rub his fingers over her cuntmound that Pam finally pulled away.

"Stop it, Dave! I'm your sister for chrissakes!", she said in mock anger, but the sly little smile on her face told her brother how much she had enjoyed his hands on her sexy young body. From past experience, Dave knew his sister was perpetually horny. He'd spied on her and her boyfriends since they were fourteen, and seen enough to know that Pam had ceased to be a virgin long ago. In fact, she had a reputation at school for putting out at the drop of a hat.... or pants for that matter.

As always, the thought of his sexy twin sister throwing her long creamy legs wide for half the boys at school excited him.... unfortunately he wasn't getting any of it. Pam went through boyfriends like clean underwear, (or was that the other way around), and right now she was between laundry deliveries. She hadn't been out on a date for two weeks, and Dave knew she must be horny as hell... he could smell it on her. Like her mother, Pam needed sex daily or she went apeshit. Dave smiled. He'd had the hots for his sexy sister for some time now... this might be his chance to try something on with her.

"Getting any lately, Sis?", he teased, putting his arm around her shoulder.

"More than you are, nerd!" she countered, shrugging him off.

"Aw, don't be like that, Sis!", said Dave. He stood directly in front of her so that Pam could see the huge bulge in the crotch of his pants.

"Christ, Dave!", she giggled. "What have you got stuffed in there... three pairs of socks or something?"

"Nope! It's all me, Sis... all me."

"I don't believe it!", said Pam, reaching out instinctively.

Her fingers curled around her brother's semi-hard cock through the thin material of his shorts, and she gasped.

"Jesus, Dave! It IS all you... God!"

"Yeah! Bigger than Tommy Carson, huh?", snickered Dave, watching the surprised expression on his sister's pretty young face.

"Yeah, much!... ah I mean... um... I wouldn't know, I've never...."

"Yes you have, Sis,", smiled Dave, "and don't try to deny it 'cause I saw you two at it in the back seat of Tommy's car at the drive in one night."

Pam didn't answer, her eyes were still on her brother's mammoth cock bulge, and so were her fingers. Dave moaned as Pam began to stroke and squeeze him to a painful erection. He reached his own hand down between her legs and gave his sister's plump little cunt-mound a suggestive squeeze.

"Feel good, Sis?", he murmured.

"Mmmmmmmmmm!", she nodded. "Take your pants off and let me see it".

"Uhhh, uhhh!", said Dave shaking his head. "You show me yours and I'll show you mine." His smile was infectious.

Pam grinned back at her brother and stood up, removing her shorts. What the hell, she thought, even if he was her brother she'd always found him kind of cute. Right now, she was really to damn horny to care. Besides, if his cock was half as big as it felt, she was in for one hell of a good time. She took off her top too, and stood before her brother in nothing but a a pair of tight, silk panties. Watching his eyes, Pam skinned her panties off and let them drop around her ankles.

Now it was Dave's turn to gasp. His twin sister was beautiful! All the times he had spied on her, it was from a distance, or in the dark. Now Pam stood before him naked, her gorgeous firm tits pointed right at him, and her little blonde cuntslit poking out from between her perfect thighs.

"Now you," she murmured, eyeing off the huge bulge in her brother's pants. "I want to see it, Dave."

Dave couldn't remove his clothes fast enough, and in a flash he stood naked before his horny sister. Pam reached out and grasped his cock. It was huge! Much bigger than any of her boyfriends had ever been. She wondered why she hadn't noticed the size of her brother's cock before. Dave placed one hand on his sister's naked pussy and fondled her small conical tits with the other. In no time, they were both panting for breath. Dave's fingers were sloshing around in Pam's aroused little cunt and she was pumping her fist up and down his raging erection like there was no tomorrow.

"Fuck me, Dave!", she moaned, breathing hotly into her brother's ear. "Ohhhhh, I want you to fuck me, quick!"

Dave picked his sister up and lay her on the couch. He didn't waste time with preliminaries, they both new that their mother would be back any minute. Besides, the sudden incestuous lust each felt for the other was urgent and overwhelming. Quite simply, Dave had a load of hot steamy cum with his sister's name on it, and Pam couldn't wait for him to give it to her.

Spreading her long tanned legs wide, Dave positioned his prick at the entrance of his sister's gaping cunthole and pushed inside. Surprisingly, his huge, bloated cockshaft slid in easily, and within seconds Dave was plunging rapidly in and out of Pam's hot, juicy young quim. Pam's legs were locked around his waist, pulling her bother into her as he fucked her.

Sweating in the late August heat, they both moaned loudly as their thrusts swept them along, urging them to move faster and faster. Pam felt her climax arrive, and her pussy clamped down on David's thick cock. She moaned loudly, gripping him with her legs. David thrust once, twice, then stabbed his sister with his long thick shaft, moaning and spurting his thick hot semen deep inside her. Quivering, they lay motionless for several long minutes, still joined, basking in the warm afterglow of a quick, but mutually satisfying fuck.

The sound of their mother's car in the driveway startled them and they quickly parted, Dave's semi-hard cock leaving his sister's creamy cunthole with an audible slurp. They grabbed their clothes and took off. David dashed to the downstairs bathroom, right outside Pam's new bedroom, and Pam scurried into the upstairs bath, feeling her brother's warm cum squish between her cuntlips and run down her lean young thighs.

David dressed quickly, using a wet washcloth to remove most of Pam's pussy juice from his genitals. He left the bathroom and picked up the window cleaner and a rag, pretending to be finishing up in the lower bedroom. Their mother came in and saw David emerge, cleaner and paper towels in hand. She asked him to help her carry in the load of items from the car, which David did. He worried about his mother getting too close to him, as she seemed to be doing, fearing she'd be able to detect the scent of his sister's pussy on him.

Pam emerged downstairs and carried in the remaining items. She and David exchanged knowing looks...looks that said; "What a close call that was!", and "I hope Mom doesn't suspect anything!" After carrying in the bags, Pam and David returned upstairs, using the shampoo machine to clean the carpet. David worked the machine, and Pam went downstairs to straighten up her room a little, and try to organize some of the mess.

After dinner, the three of them watched TV for a while. Pam and David giving each other hot little glances whenever their mother wasn't looking. Karen didn't notice a thing, except that maybe her kids were suddenly not fighting like cats and dogs as they usually did, but she put that down to being tired after a busy day.

Feeling a little tired herself, Karen went to bed early, leaving Pam and David on the couch watching TV. As soon as their mother's bedroom door closed, David reached out and ran his hand up his sister's leg, cupping Pam's hot cuntmound through the tight crotch of her shorts.

"Feel like another fuck, Sis?", he whispered, giving his sister a lewd grin.

"Don't be so disgusting!", snapped Pam, but she made no move to take her brother's exploring hand from her crotch.

Dave began to rub his sister's steamy cunt through her shorts. He located her clit and concentrated on stimulating her as quickly as possible before she protested too much. From a long succession of easy girlfriends, he knew that once you got a girl like Pam hot enough, she'd do almost anything and Pam was getting hotter by the minute. He kissed her neck and whispered in her ear.

"Come on Sis, let's fuck! I know you want it!"

"Nooooo, Dave!" murmured Pam, "We can't with Mom in the house."

"Why not?" countered her brother. "Steve's room has a lock and it's downstairs so Mom won't hear a thing."

"It's my room now, not Steve's, remember!", Pam said wiggling her ass around on the couch as Dave's fingers massaged her moistening young cunt. Her legs were spread wide now, giving her brother complete access to her squirming sex.

"I don't care whose room it is," whispered Dave, nibbling his sister's earlobe. "You're as horny as I am, Sis! Let's go fuck!"

Pam reached out and squeezed her brother's cock-bulge through his jeans, clearly impressed with the size and hardness of it.

"Okay, I guess we'd better, brother dear," she grinned, "before that monster busts right out of your jeans!"

Dave followed his sister down the stairs and into her new room. Once inside, they embraced, kissing passionately and letting the incestuous excitement of the moment arouse them. Pam led David to the bed, and began unzipping her brother's jeans. David kicked off his shoes, and she slid his jeans off, folding them neatly and placing them under his shoes by the bed. David's shirt followed. David, in turn, removed Pam's white T-shirt, and her tight shorts, feeling the heat from her loins as he removed her moist panties. Pam knelt in front of David and began sucking on his stiff shaft.

She licked her brother's balls and rubbing his cock all over her face. They both strained to keep their voices down, and to listen for sounds of their mother coming down the stairs. Fortunately, the stairs creaked loudly in several places. Pam made loud slurping noises as she sucked on her brother's cock-meat, noises that usually only occur with a very large mouthful of prick. Pam even pushed her breasts up between his legs, caressing his balls with her button-hard nipples.

Pam looked sexily up at her brother and whispered softly. "Come in my mouth, David."

Her lips sank back down over his thick shaft, sucking him as far as she could. David moaned softly, feeling his cock swelling and straining to fire into her velvety mouth. Pam removed the throbbing shaft and licked it, smiling up at her brother's reaction. David looked down, seeing his pretty blonde sister's eyes sparkle and her tongue lapping his cock. It was all he could take. Pam was licking up the length of his warm shaft. Just as her tongue brushed the glans, David's thick, hot sperm gushed out, the thick shaft throbbing mightily in her small hand.

The spurting cum landed on the side of Pam's face with a warm, wet splat, and she quickly slid his cock back into her mouth. Another spurt sent his warm, salty jism splashing against the back of her throat, and she swallowed in reflex. Another squirt followed and Pam held this one in her mouth, savoring the hot, salty taste of her brother's sperm. Pam finished by holding David's cock to her chest and milking the last of his cum onto her tits with her hands. David looked down at his sister, and she giggled quietly. She looked back at him, an impish gleam in her eye. Her tongue licked her lips, and she let a little sperm trickle down from the corner of her mouth before licking it back up, then swallowing noisily. Pam licked David's cock off and then knelt on the floor, showing him her succulent ass.

"Fuck me doggy-style, David!", she pleaded, wiggling her perfect little butt at her brother.

David wasted no time, sliding his pole between his sister's legs he began to move in and out of her slippery pussy, reaching around to massage his sperm into her tits. Faster and faster they went, with Pam biting her hand to keep from moaning out loud. Dave fucked his sister hard, her body swaying, her tits brushing the soft carpet, and the only sounds were their harsh breathing and the soft noises of her wet pussy slurping around his slippery cock. In no time at all, David shuddered and lunged forwards, lodging himself deep up inside her belly. His cock pulsed and jerked, spewing out another load of thick creamy cum, this time way up inside his sister's cunt. Pam moaned softly in a high pitched voice, quivering as his cum poured into her. They rested for a few minutes, with Pam on the floor under him, until their breathing slowed.

Pam's tightened her pussy around her brother's thick cock, feeling his semi-hard shaft twitch and slither in her soaked pussy. She rolled over and sucked David's cock, tasting her own juices mixed with his cum. She licked and sucked while he knelt above her, and she licked from his anus to under his balls, bringing him rapidly to hardness again. Pam rolled over onto her stomach and arched her tight ass up, reaching around to spread her cheeks. She felt so dirty doing all these deliciously depraved things with her own brother, but it excited her beyond belief.

"Fuck my ass," Pam whispered.

She wondered if David really would. Most of her boyfriends never did, they were only interested in fucking her tight cunt or getting sucked off. In fact she'd only done it once before, strangely enough with Tommy Carson, that same night Dave must have been spying on them. She half expected her brother to ignore her request and fuck her pussy again.

So Pam was slightly disappointed when his cock slipped into her soppy cunt and pumped slowly a few times. She was all set for Dave to fuck her pussy once more when she felt his cock withdraw and press against her rear. God yes, she thought, he was really going to do it!

Pam reached down and fingered her clit, relaxing her asshole for her brother's cock. Dave pressed in slowly, spreading her asshole wide and Pam cried out, muffling her whimpers of delight with a pillow. Wider and wider the head of his cock spread her tight hole, until with a soft pop, he slid into her ass. Pam, feeling very horny and naughty, leaned back, shoving her brother's cock deep into her spread open ass. They moaned softly together as his cock slid into her tight hole.

David felt his sister's incredible tightness gripping him, and Pam felt as though a baseball bat was being shoved up her ass. Her cunt spasmed several times, making her asshole pulse around David's cock. Pam moved her ass back and forth, and then David began pumping her tight hole. After pumping for a minute, David pressed her hips to the floor and began to plumb her bottom with his thick reaming tool, alternately filling, then emptying his twin sister's butt. Pam was climaxing in small, miniature orgasms, her cunt drooling a thick white cream. David shoved his cock deep, the rotated his hips back and forth, stirring his cock in her asshole.

On and on they went for long minutes, until Pam thought her brother's increasingly harder thrusts would tear her apart. She arched her hips up to meet his pounding thrusts. David came hard, slamming his cock deep within her. Pam could almost hear the roar of his sperm flooding into her. Dave shook and pulled Pam's hips against him, pressing his cock deep so that he could fill his sister's tight, round butt full of cum. He spurted over and over, sending hot streams of jism gushing into Pam's ass, filling her insides with his boiling cum. Pam writhed and panted on the floor, then lay still as they both tried to catch their breath.

David's cock was still throbbing deep in Pam's butt when they heard the upstairs toilet flush. Their mother was awake! They listened alertly for any sound that meant they might be discovered. The sound of water rushing through the pipes covered some smaller noises and they were tense for long moments. The floor finally creaked in the hallway above them. In a panic, the twins parted quickly, and Pam felt her asshole spasm, closing slowly around the empty thickness left by her brother's retreating cock. She could feel Dave's cum trickle warmly out of her asshole.

Dave hid under the bed and Pam slipped under the covers, lying on her side and pulling the sheets up over her sweating body. David lay under the bed, his cock glistening wetly in the moonlight. His heart pounded in his chest as he tried desperately to calm his ragged breathing.

The bedroom door opened and Pam saw the dim light from behind filter in. Karen looked from the doorway and saw her daughter asleep on the bed. She closed the door slowly, unaware that her daughter was lying awake, facing away from her so that she wouldn't see the sperm on her face and tits. Pam heard the retreating footsteps, and got out of bed. She grabbed a tissue, wiping her behind as she looked under the bed. David crawled out and sat on the bed beside her.

"Shit, that was close!" he whispered.

"Yeah, but exciting!", grinned Pam, reaching for her brother's semi-hard cock. "I'm still horny. Can you get it up again?"

"You hot little slut!", laughed Dave, fingering his sister's gaping cuntslit. "Sure! I'll fuck you again, Sis! How do you want it this time?"

"I want to be on top this time," husked Pam, fisting her brother's slimy cock.

David lay on the bed and let Pam straddle him, watching intently as his sweet sister lowered her hot cunt down onto his cock.

"Fuck me hard, Davey! Shoot your cum in me.", Pam whispered.

David grabbed his sister's taut little ass-cheeks and lunged upwards, impaling her deeply. Pam felt his cockhead slam against the mouth of her womb and a loud moan escaped her young lips. Her brother's big, hard cock was filling her completely. She could hardly breathe! She began to move up and down on him, enjoying the feel of his long, thick hardness sliding in and out of her cunt. God, he had a gorgeous prick!

Pam reached for her tits and let her hips relax, urging her brother to do the work while she just enjoyed the sensation of his cock sliding up and down in her pussy.

"Ohhhh, yes! Fuck me, David!", Pam whispered, "Ram it into me.. Pound me!!"

David began fucking his sister's hot little cunt hard and fast, and they both felt the rising tide of their orgasms quickly. Pam came, smothering her cries in her brother's neck as she hunched and rode his deeply thrusting cock. Her convulsing pussy grabbed him and milked his cock, and soon David felt the fast rising surge deep in his loins.

His young hips jerked upwards, slamming his cock up into Pam's tight little fuckhole with a vengeance. His fingers were buried in the soft flesh of her ass, grinding his sister's cunt down onto the huge thick shaft of his pistoning cock.

Pam almost screamed aloud as David's cock spurted inside her. She could feel the thick, throbbing shaft spurting cum all the way down as he emptied his balls into her quivering cunt, warming her insides with his hot sperm. The two lay together panting and caressing while their loins pulsed and throbbed. Pam's pussy tightened around David's cock, milking the last drop of jism from him.

They dozed for a while with Dave's soft cock still inside his sister's pussy, but a noise from upstairs startled them. Dave got up and carefully opened the door. He could hear what sounded like the television. He told Pam to stay there and went to investigate. Climbing the stairs, peeked into the den and his eyes went wide at what he saw.

In the dark room, clearly illuminated by the TV screen, his mother was sitting in a chair with her legs spread, a vibrator humming between her legs. The screen showed a young woman on her knees, sucking a thick cock while another thick cock plunged into her asshole. David could see his mother squirm on the recliner chair, spreading her legs over the arms. Her hands were moving in a rhythmic up and down motion, thrusting the vibrator into her wide-spread cunt. David's cock began to swell.

A soft creak behind him snapped his head around, and he saw Pam's naked figure approaching in the gloom of the hallway. He motioned, finger to his lips, then nodded towards the den. Pam looked around and saw what was going on.

She couldn't believe it for a moment... her mother, moaning in passion, watching a porno movie! Pam watched, aroused and surprised. She knelt down and felt David's stiff cock press against the side of her face. Luckily, from where they were, their mother could not see them without turning around in the recliner.

Pam felt a sudden arousal wash over her, and she reached up and pulled David's prick into her mouth. She sucked on the head of his cock, watching the scene in the den. Pam's fingers found her clit and rubbed there, getting her very aroused. The movie focused in on the brunette's face, her mouth wrapped around a thick cock that pumped in and out of her mouth. The man pulled out and shot his thick semen all over her face, the white gobs dripping easily from her chin.

"Drink it, you horny fucking bitch.", they heard their mother hiss.

They watched as Karen's hips moved even more wantonly, the humming of the dildo changing pitch as she plunged it in and out of herself. Pam felt as though she'd been seen, and when she realized that she hadn't, she tried to suck all of David's cock. She wanted David to fill her mouth, fill it with his hot cum as they watched their mother fuck herself with her vibrating plastic cock.

The movie now focused on the brunette's ass-fuck, and the man's thick cock seemed to impale her from behind. The girl's tits bounced as her ass was repeatedly filled with thick cock. The scene was very hot, with images of her passionate, sperm- dripping face cut in. Pam knelt and pulled David down behind her, pressing his cock into her pussy. He fucked her slowly, and then shoved his slick cock up her asshole. Pam felt her tits swell as he pushed into her, and then his loins met her ass. On the screen the man was pumping the brunette hard, and silently David began to match his thrusts.

Pam suppressed her moans and cries, turning red with the strain. A few moments later, on the screen, the man pulled out and spurted his thick white juice all over the brunette's asshole. His thick white cum ran down her ass, over her shaved cunt and dripped to the bed. The camera showed the brunette looking into the lens, saying something. Their mother mouthed the words.

"I love cum in my ass!", she moaned, then added her own line. "And I love it in my mouth too."

The scene changed and now on the screen a blonde was getting her tits fucked while another blonde ate her pussy. The blonde was going crazy with her legs in the air, moaning something over and over. The reclining blonde looked enough like Pam to be her sister, right down to a small birthmark mole by her left eye. David saw the same similarities and his cock throbbed in Pam's ass. Pam felt like screaming out loud but held it in. She would scream later.

The camera showed the thick cock begin spurting between the blonde's tits, showering her lips and chin with thick spurts of cum. As the camera pulled back, the man got off and another pushed the sucking blonde from between the girl's legs. The girl got up, moved around to straddle the sperm-drenched girl's mouth. Briefly a tongue flashed over the girl's pussy, then disappeared as she lowered herself down. The new man had a very large cock, thick and long. He pressed this into her cunt a few times then withdrew.

"Fuck the hot little slut.", Karen moaned. "Fuck her with that big, thick cock. Shove it right up her fuckin' cunt."

Pam began coming, biting her fist to keep from screaming out loud. David's cock was slowing down, pumping her evenly as he watched both the screen and his mother fucking herself with the dildo. On the screen, the thick cock slid slowly up the girl's cunt again, and her hips arched high. The guy worked it around a few more times, then lifted her legs, pushing them back. Slowly he pressed the huge head against her asshole, spreading it wide. Pam moaned softly, seeing the girl take what she felt like she was taking in her ass. Her mother too was moaning, her hands working like a blur between her legs.

"Yesssss!", Pam heard her mother hiss. "Butt-fuck my slut of a daughter's ass. Fill her ass full of cum. Sperm her face down. Jizz me down, cum all over us all!"

Their mother was in the throes of orgasm, talking dirty, slutty talk, her legs shaking as her hips rocked on the chair. Pam felt her whole body stiffen and shake when she realized her mother was "seeing" HER being fucked in the ass, just as David was doing to her now. David was pumping her butt faster, his cock throbbing in her tail and giving her orgasm after orgasm. The man on the screen was fucking the blonde faster too, his huge cock buried in her asshole, and the camera showed the second blonde sitting on top of the first girl's mouth.

As the blonde was butt-fucked, the second blonde pulled hard on the girl's nipples, distorting the shape of her swaying tits. David reached around and pulled on his sister's, making her moan. Unseen by either of them, Pam's mother was pulling her right tit hard too, using the other hand to ram the dildo up her dripping cunt. The scene changed, and the second blonde got off the first, the camera showing the lower blonde's glistening face covered in sperm and pussy cream.