"Lift your ass, Mark. Let me get your jeans down!" she ordered huskily, staring up at him with lust-glazed eyes.
"You got it, baby!" he gasped with a grin, heaving his ass up, and turning on even more as he felt her draw his trousers down about his knees.
His huge cock thrust upward rigidly, swollen with lust, just as long and thick and hard as Barby had hoped it would be.
"Ohhh, Mark," she purred, curling her hand around his big, pulsating prickshaft, her fingers not quite able to meet around the center of it. She squeezed his cock gently, thrilling to the lewd sensation of the solid slab of meat throbbing in her hand.
The horny blonde cooed in pleasure, bending down lower and inhaling the pungent manly scent of his prick. A glistening drop of pre-cum glittered on his trembling piss-slit, and Barby pursed her lips, blowing a stream of warm air onto his pulsing cockhead.
"Lick it up, baby! Lick up my cum!" the boy husked, writhing on the car seat as he fought to control his swiftly rising lust.
Barby thrust her tongue out and lapped it slowly back and forth over his blunt cockhead, tasting the pearly drop of liquid and moaning with incestuous pleasure.
Her lips fluttered teasingly across his aching prickhead and Mark gave a strangled gasp of pure incestuous delight.
"Awwwww, yeah, baby, that's so fuckin' good!" the brawny teen groaned as the beautiful girl's lips kissed and slid across the pulsing knob of his prick.
"Mmmm, yesss," Barby mewled, running her fingers up and down the rigid stem of her brother's prick.
Moving on down, she pressed her open, moist mouth against the vein-laced sides of his prickrod, lashing out with her tongue and stroking it in little licking movements back and forth across his hard prick meat.
She moaned, loving its flavor. She moved down farther, burying her face in the patch of curling brown prick hairs surrounding the base of his cock, inhaling the heady aroma of his aroused masculinity.
Mark's heavy balls dangled between his legs down to the car seat. Barby clipped her head, puckering her lips and planting a big openmouthed kiss on each of his big balls.
She thrust her wet tongue out and eagerly licked his wrinkly, hairy ball sac, tracing his big nuts through it.
"Yeah, baby, yeah, do it! You're doin' great! Do your thing, girl!" Mark bellowed, reaching down and running his strong fingers through her long, gleaming hair as she continued to lick and kiss his balls.
Mark's rock-hard prick thrust up in the air, throbbing visibly, glistening with the girl's saliva.
Barby moved back up to die head of her brother's cock again. She opened her mouth and sucked her lips around his meaty cockhead, tugging it inside and licking at it hard, the tip of her tongue probing into his puckered cum slit.
She pushed her face down on his upright prick, letting inch after hard inch of his hefty fuckrod slide over her silken tongue, driving her brother half out of his mind with incestuous ecstasy.
"Jeesus, baby, Jeesus!" the boy groaned. Barby's warm, wet mouth was making him feel super-hot and horny. His balls and cock felt as if they were on fire, and they trembled violently as the girl expertly sucked his prick.
"Unnhhh, yeah, Barby, suck that cock! Suck it hard until I blow my wad right down your sucking throat!" the boy grunted huskily, beginning to hump his hips eagerly up and down, his fingers gripping the back of her head tightly and urgently pushing her face down more on his upright prick.
The beautiful blonde shuddered with fuck lust as she fell the fat head of her brother's prick punch up against the back of her mouth and begin to slide down her throat.
Tears sprang to her eyes as she forced her throat muscles to relax. Then she swallowed hard, wantonly plunging her head down on his lap.
Mark groaned in delight as the full length of his enormous cock suddenly slid right down into his sister's gulping throat.
Barby gave a little gurgle of depraved delight as she felt her aching throat being stretched by the thick, heavy length of the boy's big tool. Her widely stretched lips were plunged into the thick patch of his prick hairs.
She could feel the very base of the huge fuckrod pulsating against her gripping, sucking lips, and she eagerly tugged at it, hollowing her cheeks and swirling her tongue along its underside.
"Aaarghhh, you sexy little whore!" Mark grunted, clutching the back of the girl's blonde head and gripping it in a frenzy of wild incestuous passion. He hunched his hips up and down, squirming from side to side as he churned the enormous length of his cock deep inside her throat.
"Goddamn but that feels good!" he cried, relaxing his grip on her head long enough for her to lift up and breathe in a little air through her flared nostrils.
But Barby was too aroused to care very much about breathing at that point. And with a little squeal of excitement, she plunged right back down on her brother's big thick cock, sucking at it hungrily, bobbing and twirling her head as she gave the boy the best blowjob he had ever had.
After long moments of deep-throating the boy, Barby moved back up to the very tip of his cock, her tongue licking and lashing and swirling around the stiff sides, her lips working vigorously around it as she sucked harder and harder.
Then she shoved her face back down again, swallowing hard, taking his entire thick fuck tool deep in her tight, narrow throat, savoring the lewd sensation of getting throat-fucked.
Her little teenaged pussy was getting hotter and wetter with each suck, and she writhed and squirmed with erotic delight.
Now, as the girl continued to suck him off, Mark slipped his hands down beneath her and he began to stroke her big tits, groaning with excitement as he felt her stiff nipples straining against the sheer fabric as if searching for his fingers.
Suddenly, Barby felt her brother's cock lurch wildly against the clenching walls of her throat and then, before she had a chance to gather her thoughts, her mouth was flooded with a wad of warm cum. As more and more jism shot into her mouth and slid down her throat, Mark twisted and pinched Barby's nipples through her dress. Mingled pain and pleasure shot through the girl's loins as she came.
CHAPTER TWO
Barby pulled her mouth off Mark's prick after swallowing down every delicious drop of his thick cum.
"No wonder every guy at school wants to screw you! You're one hot little whore!" Mark said huskily.
Barby giggled, but then she gasped excitedly as she felt her brother's mouth against her own, kissing her passionately, his lips wriggling over hers, his long tongue prying between her teeth and lapping into her mouth, licking up her saliva and swallowing it lewdly.
His hands ran over her body, sliding from her naked shoulders down over the soft curves of her big tits, squeezing them greedily through the thin cotton fabric of her white sundress.
"Ummmm," Barby moaned into his mouth, feeling the boy's strong palms grazing over her stiff nipples, sending rushes of sensual pleasure through her upper body down into her loins.
He groped for the straps of her dress, drawing them over her shoulders and then, still kissing her with his tongue, and lips, he reached behind her back for the zipper.
He slowly, teasingly, unzipped her dress, drawing it down and sliding his hand inside, against the warm naked flesh of her back.
He drew slightly away from her, his eyes burning with lust, panting hard as he stared down at her body.
"Jeeesus, I've got the sexiest chick in town for my very own sister… this is just the beginning, baby!"
Barby returned her brother's grin. She did find him sexually exciting, and she only hoped that he wouldn't keep her waiting too long before fucking her.
Mark's hands moved around in front and he hooked his fingers into the top of her flimsy dress, tugging it down over the full jutting mounds of her tits.