After dinner that night, Rusty excused herself and turned in early. After about three hours of almost non-stop fucking and sucking, she slept like a log and didn't wake up until noon the following day.
Stretching and yawning, she thought about the events of the previous afternoon and giggled girlishly with remembered delights. Then she frowned thoughtfully and sat cross-legged on the bed, trying to sort things out in her mind.
Let's see, now. Mom knew about her and Paul, but she didn't know about her and Daddy. And Daddy knew about her and Paul, but not about her and Mom, or about Mom and Paul. She and Paul were the only two who knew everything about everybody, and they were in constant danger of being caught in the wrong place at the wrong time with the wrong person. It could have been a bit sticky yesterday, for example, if Daddy had come home earlier, or if Mom had stayed around longer.
Rusty thought about the situation a lot that day, but it wasn't until her father offered to take his wife out to dinner that night that a possible solution suggested itself to her. Ken and Valerie were no sooner out the front door before Rusty was talking excitedly to Paul. After she'd explained what she had in mind, he thought about it for only a few seconds before he smiled broadly and nodded his head.
Late that night, Ken and Valerie returned to find the house dark and quiet. Moving down the dim hallway toward their bedroom, they passed the slightly open door of Rusty's room. Ken stopped suddenly, his breath hissing in through his clenched teeth. Valerie turned to see him staring into Rusty's bedroom with bulging eyes. She moved closer and followed the direction of his gaze.
Rusty was hovering over his mammoth cock, kneeling between his thighs, her fat tits billowing out the front of her thin T-shirt, her rounded ass weaving back and forth in the air, covered only by tight shorts. Paul's fingers were curled into her auburn hair, urging her drooling lips up and down over the swollen length of his cock.
"Jesus Christ," Valerie murmured. "I thought those two had better sense."
"What?" Ken asked in a puzzled tone.
"Uh, nothin'."
Rusty's skilled tongue caressed Paul's meaty cock lovingly as it drove in and, out of her slurping mouth. Valerie had to admire her daughter's cocksucking abilities as Rusty expertly gobbled her brother's stiff cock.
Then she remembered that Ken was standing directly behind her, watching the same lewd scene. She took a half-step backward, meaning to turn around and urge her husband away from the doorway. But Ken wrapped his arms around her waist and held her tight, forcing her to stand still and continue to stare at her obscenely playing son and daughter.
"Mmmmmmm." Paul moaned in satisfaction as he pumped his thick cock upward into the drooling mouth of the luscious teenager kneeling over his lap. They also heard Rusty's muffled whimpers of delight as her flushed face pistoned up and down over his throbbing cockshaft.
Ken and Valerie both wanted to leave. Neither of them knew that the other had been a regular participant in such scenes, and both of them were afraid that the other might find out if they lingered here. But neither of them could tear their eyes from the wanton picture their children made.
Gradually, their attention shifted partly to an awareness of their own bodies and their reactions to the sight before them. Ken felt his cock stiffening, bulging tightly against the crotch of his pants. His breath was rasping in his throat. Valerie's nipples were quivering demandingly and her clit ached painfully. Her cunt leaked steadily, wetting the front of her panties with her creamy juice.
Ken hugged his wife tightly around the waist, staring avidly over her shoulder. He pressed his throbbing cock up against the firm mount of her asscheeks, feeling his prick dig into her lush butt. Prom her harsh, gasping breath, he knew that she was getting excited from watching their son's huge cock being so skillfully sucked on. He could feel the tension in her body and hear her uneven breathing. She was getting turned on from watching her sweet young daughter giving her handsome son a slow, sensual blowjob.
Ken's cock was stiff and lurching against the front of his pants, poking into Valerie's rounded asscheeks. He pressed closer, tightening his arms around her waist. She sighed softly and leaned back against his body, swiveling her ass into his crotch, causing his cock to twitch and jerk even more impatiently. Ken began rotating his own ass in a tight back-and-forth motion, rubbing his crotch over the swelling roundness of her asscheeks. He kissed the side of her neck gently and moved his mouth closer to her ear.
"Just look at 'em go," he whispered. "That's our children in there, you know. Look at the way little Rusty swallows Paul's big cock. A sight like that really gets to you after a while, doesn't it, honey?"
Valerie's eyes were riveted to her daughter's wet, slobbering mouth as it slurped up and down over her son's spit-soaked cock. She squirmed her ass back into Ken's crotch, lewdly aware of the way his huge prick was poking into the moist crack between her asscheeks.
Turning her head slightly, she whispered to him, "I can tell it's already gotten to you, you dirty old man!"
He answered her by running his hands up the front of her body and fondling her big, jutting tits.
Valerie started trembling, her knees suddenly going weak. Ken's hand's on her tits, his hard cock pushing insistently in her asscheeks, and the wanton scene being played out by her children, were all combining to make her more and more excited with each passing second. She leaned her head back against Ken's chest, her soft, dreamy eyes continuing to stare straight ahead at the couple on the bed.
Half her dazed mind was faintly surprised that her husband could be so thoroughly turned-on by the sight of Rusty giving head to her brother. She would have expected him to be boiling mad, a perfect example of an infuriated, irate father. But then, he had always been a horny old reprobate anyway, so maybe…
Ken continued to fondle Valerie's tits and nib his bulging crotch against the cheeks of her ass. Valerie's nipples had become twin swollen buds of puffy flesh, she was pushing her ass back into his bulging pants with greater and greater urgency.
She arched her back and shoved her ripe tits out into his hands, rubbing the spongy tit tips against his palms. She clenched her teeth and sucked huge gulps of air in through her nostrils. Her dazed eyes stared steadily at the thrilling sight of her son's huge cock sliding in and out of Rusty's juicy mouth.
"You wanna fuck?" she whispered in a soft, sexy voice, undulating her lush asscheeks against his straining groin.
Without answering, Ken stepped back slightly, bringing her with and bent her forward slightly, still playing feverishly with her jiggly tits. He moved one hand around to the side of her skirt and pulled down the zipper, letting it fall to the floor. Her only reaction was a low moan of encouragement. The palm of his hand slid around and rubbed over the sopping wet crotchband of her panties, tracing the outline of her tight-lipped cunt.
Swiftly, he hooked his thumbs under the waistband of her panties, pushing them down over her full, quivering thighs until they dropped to the floor with her skirt. Valerie gave another low moan of approval and squirmed her ass back against him.
Valerie felt sure that Rusty and Paul would be able to hear her throaty whimpers of joy, but they were too involved in their own wanton endeavors to be aware of anything happening out in the hallway.
Paul's ass was humping madly, driving his sturdy prick up into his sister's bobbing face.
Rusty was gobbling Paul's cock hungrily, her tightly ovaled lips slurping wetly on his throbbing prick. Neither of her parents noticed the quick, sideways glances she occasionally cast toward them in the doorway.
Behind her, Valerie felt her husband bending her farther and farther forward, until she had to rest her hands flat against the wall to steady herself. She was bent almost into a right angle, her shapely asscheeks arched straight back. Ken urged her thighs apart with one hand and with the forefinger of his other hand traced up and down over the hairy lips of her sloshy cunthole. He probed at the shivering stub of her clit with the tip of his finger, while she tried to stifle the feverish squeals of joy that attempted to bubble up out of her throat.
Ken diddled her oily clit button with one hand and fumbled with his belt buckle and zipper with the other. Finally, his pants fell down around his feet and he quickly skinned down his shorts. His cock bobbed upright, long and stiff and thick, the head bloated with lust. Below, between his thighs, his fat, round balls quivered and twitched, his hot cum churning and ready to shoot. He moved forward quickly, gripping his wife's asscheeks and pressing the hard, aroused tip of his shaft against her steaming pussyhole.
Valerie groaned lewdly and began to lean back against his cock. She continued to watch as Rusty sucked and milked Paul's thick, upstanding cockshaft. Her eyes glinted whorishly. She felt Ken's firm, rubbery prick wedge itself in between the snug lips of her pussyslit.
Slowly, he wormed the stiff length of his cock into her juicy cunt, poking through the tight lips and scraping against the wet, smooth walls of her fuckhole. He leaned steadily forward, sliding his thick prick into her an inch at a time.
They both moaned softly when his hairy groin was finally pressed tightly against her backward-thrusting asscheeks. Valerie's warm, buttery cunt was completely filled with the length of his twitching shaft. Her silky cuntwalls squeezed and caressed his cock like a soft, wet vise.
Looking down, Ken slowly withdrew his prick, leaving just the swollen head of it embedded within the clasping mouth of her cunt. His cock was gleaming wetly with her cuntjuice. He saw clearly a huge vein, pulsing and throbbing with his heartbeat. He pushed forward again, more swiftly this time, plowing his fat cock deep into her quaking pussy.
Valerie pressed the back of her arm tightly against her mouth, biting down harshly to stifle her cry of ecstasy. For a moment, her eyes blurred and she found it impossible to focus on the sight of Rusty and Paul on the bed. Then her vision cleared and she sighed softly at the pleasure of Ken's huge cock drilling in and out creamy little cunthole.
Ken was fucking her in long, relentlessly steady thrusts now, his prick sliding up through the tight walled channel of her cunt. His hands were cupping the sides of her waist, pulling her back and forth to meet his hard strokes. She rotated her ass from side to side, squirming her hot cunt back against his driving cock. Sharp jolts of electric pleasure shot through her body. She leaned weakly against the wall, one eye cocked around the doorway, watching Rusty and Paul. Behind her, Ken stared at the same scene over her shoulder, meanwhile battering in and out of her juice-flooded pussy with his swollen cock.
In the bedroom, it looked like Paul was about ready to cum. Rusty's soft, juicy mouth rode up and down on his lurching cock, her tongue lapping and swirling over his stiff flesh. He groaned loudly as he felt his boiling jism being released from his plump, quivering nuts. It bubbled and churned, rushing headlong up the length of his cock.
He sat up on one elbow, looking down at Rusty's sweaty, flushed face as he erupted into her mouth with gush after gush of greasy juice, puffing out her cheeks and forcing her to swallow convulsively.
Rusty cooed and murmured in joy, reaching into his fly and fingering his shuddering balls as if to squeeze every last drop of his thick, tasty cum into her greedy mouth. Paul cupped the back of her head in both hands, pushing her face down tightly over his spurting cockhead, burying it deep in her throat. When he finally stopped squirting, he flopped back down onto the bed with an exhausted little sigh of satisfaction.
But the horny little teenager continued to nurse on his shriveling prick as though she was just beginning to blow him. She licked gleefully at the limp, cum-coated flesh, crooning softly into his hairy crotch.
Out in the hallway, Ken and Valerie watched as their son pumped his hot jism down his sister's throat. Valerie humped backward into Ken's thrusting cock, impaling it firmly in her frothy cunt. They were both hot and sweaty, their bodies gyrating madly as they sought to cum.
Valerie climaxed first, her eyes rolling back up into her head, her breath catching in her throat, her body quivering and twitching in unbearable ecstasy. She slumped wearily against the wall, gasping and panting, her legs trembling with the effort of holding her up.
Behind her, his mind still filled with the deliciously obscene sight of Paul splattering Rusty's mouth with his rich, gooey jism, Ken heaved and lurched into his wife's upturned asscheeks, plowing his huge cock in and out of her slobbering pussy. He stood up on the tips of his toes, driving into her with all his strength, his hard, cum-filled balls slapping smartly into her hairy cuntmound with every stroke.
When he felt Valerie cumming, he increased both the speed and force of his long, smooth fuckthrusts. He felt her pussy spasm and flow, drenching his pistoning cock with hot, creamy cuntjuice. He heard the low, groaning whimpers flowing up from her throat.
And then, suddenly, his own climax overwhelmed him.
,He leaned over and pressed his mouth against Valerie's back, trying to quiet his cries of pleasure as huge gobs of jism splashed into her tight-walled fuckhole. He gripped her waist ruthlessly, his strong fingers sinking deep into her soft, sweaty flesh, plunging his cum-shooting cock all the way into her cunt.
Valerie felt her legs turn to jelly as Ken's jism spewed wetly into her frothy pussyhole adding to the thrills of her own orgasm. Her eyes blurred with tears of joy. Then his wonderful cock spat out the last drops of his jism and his dwindling prick started to pull out of her clutching cunthole.
Sighing happily, they both drooped exhausted to the floor.
"Hey, folks, don't you think you'd be more comfortable in here with us," Rusty called out from the bedroom.