together gently to rub and stroke them between her palms, sending shocks both through his spine and down the whole length of his cock. She could feel it jerk about more urgently inside her warm mouth, and a larger dollop of semen oozed out of the head to run over her palate. She sighed with pleasure at the taste and redoubled her sucking.
Bill had to close his eyes for a second as a wave of pleasure shuddered all over him, then snapped them back open to resume watching his parents. No matter how many times he had seen them making love, the sight never failed to turn him on.
'You feel as good as Mom looks, Gwen…' he sighed, reaching down with one hand to grasp her head and gently but urgently move her face more quickly up and down on his pulsing cock, fucking her beautiful countenance.
'Dad's got both hands on Mom's hair… he's rolling his head around on the pillows, I think he's gonna come in a minute…!'
'Shit! Mom's cheeks are puffing in and out like she was drowning, she's sucking him off so fast!' Bill began thrusting his hips forward more frantically now, and his second hand joined the first in an unconscious imitation of his father, holding his sister's face to his groin and shoving his cock powerfully down her close-clasping throat.
Gwen didn't mind his taking over; she found she couldn't get enough of his fat, hot cock in her mouth and throat. She concentrated on taking a quick breath on each out-stroke, leaving her throat muscles relaxed so that his long cock slid easily into her close-clasping throat as if it was the softest, juiciest cunt in the world. She kept working on his churning nuts with her fingers, feeling them wiggle and jerk as his orgasm neared, getting ready to pour his third load of spunk that night into her stomach.
Bill saw his father suddenly make a grimace that looked like one of pain, but Bill knew it was really pure ecstasy as his father was caught up in orgasm.
'Christ, he's coming, Gwen!' Bill said, his voice getting dangerously loud in his excitement. 'He… he's holding her head down and pumping his hips up hard. I can see cum leaking out around Mom's… around her … mouth…! Oh, shit! Here it comes!!!'
This last statement was a shout as he gave a last hard shove of his hips into his sister's face, cramming his cock balls-deep into her throat and pumping gob after gob of his thick jism deep into her throat. Tears of pleasure streamed down his cheeks as his nuts erupted in her hands, unloading the stinging hot load of cum juice.
Gwen gave herself over totally to an orgy of cock-sucking, slurping and moaning around his wildly spasming prick, loving the taste of his tangy cream oozing down her throat. It filled her mouth, oiled it, making his spasming cock slip and slide faster as he pumped in and out, pistoning into her oral cavity, dropping an incredible load so soon after their frenzied fucking sessions.
For almost a full minute Bill held her head to his groin, keeping his dork buried deep in her throat, while she happily pursed her lips around the base and kept working his balls, milking him of every last drop.
Yet even with this latest seemingly ball-draining orgasm, Bill's unstoppable cock softened only slightly, his youthful sexual energy undiluted. And Gwen's continued sucking pressure was quickly bringing him back up to full rock-hardness.
Bill watched quietly, his breath slowly coming back under control, as his mother pulled her lips back up off his father's cock and began to lick the long shiny shaft clean of his cum, nibbling the heavy ridge along the bottom with her lips, and looking up at him with pure lust in her eyes. Ken reached down to stroke her cheek, saying something Bill couldn't hear, but which caused Carol to laugh and giggle, then plant a kiss on the gleaming red crown of his cock and start to clamber up between his legs, his cock sticking straight up, hard and wet, brushing along her heavy, hanging tits as she moved.
Bill released his hard grasp on his sister's head and stepped back, slipping his rigid prick out of her mouth. Gwen whimpered with displeasure as the hot meat slid out of her grasp – she had been so wrapped up in sucking him off that she'd forgotten all about their parents in the other room.
'Come on, Sis,' Bill grunted as he reached down to help his gasping sister rise shakily to her feet. The entire lower half of her lovely face gleamed with his spent semen, and sticky white streamers hung from her chin and dripped onto her heaving breasts. They were both feeling hot and wet, covered with a film of sexual sweat, as what was turning out to be a night of endless sexual variations rolled on and on.
Slowly regaining her senses, Gwen realized what was going on again, and turned to the wall to put her face to the peep-hole. Bill saw her go up on her tiptoes again to see through, and realized that might make it difficult to carry out his part of the plan. Looking around quickly, he recalled a large suitcase in his closet, and while Gwen pushed herself against the wall, trying to keep her eye at the hole, he brought it out and placed it under her.
'Step up on this, Gwen. It'll make things easier for both of us.'
Shifting around, Gwen found she could now comfortably look into the hole, while bending slightly at the waist and thrusting her deliciously rounded ass backwards toward her brother. Her twat was throbbing mercilessly now, eager for some kind of loving caress after she had worked to bring her brother's rocks off so strongly. She let one hand drop down to diddle her inflamed clit, gasping and moaning as she watched the next act in the sexual play unfolding on her parents' wide bed.
'Mom's going to sit on his cock while he lies on the bed,' she whispered, watching her mother swing her slender legs up to straddle Ken's thighs. Carol reached down and wrapped both hands around his stiff, wet cock, rubbing the fat crown back and forth in the flushed folds of her pussy lips. She was smiling, her tongue licking over her full lips as she masturbated her clit with his cock, and Ken reached up to sink his fingers deep into her heavy, hanging tits, kneading the pliant flesh, his thumbs rubbing the big nipples around and around.
'Oh, God… he's so big…' she murmured, her eyes locking on the massive piece of daddy-cock as it was expertly manipulated by her mother's slender hands. Gwen shifted her hips back slightly, wiggling her ass seductively back at her brother.
'Fuck me, Billy!' she growled urgently from deep in her throat. 'God, I need a cock in me so bad! Fuck me again, little brother!'
Bill let his hands roam freely over her curving, silky-smooth asscheeks, massaging the slick sweat into her skin, and running his finger lightly along the moist crack of her ass. He let his digit dip slightly into her puckered little asshole, working it in all the way to the first knuckle, past the tight opening, while he gripped one of her out- thrusting hips in his other hand.
'UH! Oh, Billy! Shit, yeah!!!' Gwen moaned at the feeling of his nimble fingertip invading her tight anus. She wiggled her hips in delight, but didn't take her eye away from the peep-hole.
Her mother was now really getting down to business. Ever so slowly she was impaling herself on the massive prick in her hands. Gwen watched in awe as her father's long, shining prick slid easily and smoothly into her mother's tiny twat, splitting her pussy lips wide-open with its impressive width. Carol moaned and tossed her head in ecstasy as she took inch after glorious inch deeper into her cunt. Her huge tits were heaving up and down as her breath quickened, making Ken dig his fingers deeper into that incredible flesh to maintain his grip.
'They're starting to work it out now… OH! Mom's sliding up and down on his cock… God, that looks so good!' Gwen's words were coming out in short little bursts now as she became more excited watching the erotic show, just as Bill had gotten caught up in it. Again she jiggled and pushed her ass back at him, riding on the fingertip in her rectum.
'Fuck me, Billy! Oh, please, cram your beautiful cock back up my cunt!
I want to feel you in me while I watch Daddy fuck Mom!'
Bill was more than eager to slip his pulsing dick back into his sister's juicy muff hole. The swollen red lips of her twat flowered out below her asshole, framing the hot depths of her pussy, and he popped his finger out of her butt to continue stroking down to her wet snatch.
Gwen moaned with ecstasy as his hands worked at her cunt, fingers sliding along the fleshy lips, then digging into the juicy hole itself, his other hand stroking and pinching higher up on her inflamed clit.
She spread her fine legs wider apart on the suitcase, spreading herself completely open to her brother, straining backwards and waiting for him to shove his swollen cock up her quim, relieving the deep-set itching lust she felt there.
Meanwhile, her mother was going crazy as her own burning cunt was being reamed again and again by her tireless husband's long cock. Her mouth was open wide as she panted and gasped in pleasure, sliding up and down, up and down, in long, piston-smooth strokes. Filling her cunt to the brim, she'd sit down and rub her puffy
