Adam can't help but to take his sister right NOW!

Adam turned to his mother and sister. Linda held her daughter cradled against her massive bosom as she gently fondled her swollen melons. Cindi’s eyes were wide and glazed with passion as she stared at Adam or rather at his massive, throbbing cock. It stood out in front of him like an iron lance; long, thick and pointing at the two of them like some huge fleshy weapon.

The sight of his younger sister; her long blonde hair a tangled mess, her clinging silver jumpsuit a tattered ruin, her burgeoning EE breasts seeming huge on her lithe slender young body set Adam's body aflame again, god but she was beautiful!

Looking at her Adam could feel the raging animal lust inside him was tempered by something else; it was tempered with true familial affection. The broadening of Cindi’s hips and thighs had torn splits in the jumpsuit down the sides of her waist and legs like runs in a stocking. Adam could clearly see the outline of her hand through the thin elastic fabric as she worked her fingers furiously in and out of her hungry snatch.

“Adam… please…” She groaned squeezing her eyes shut in anguish. “Please…”

Adam wasn’t sure what she was pleading for anymore and he didn’t think she knew either but he did know how to put an end to her torment. Resisting the maddening desire for her than raged through every cell in his body he reached out and gently cupped her soft heart-shaped face in one strong hand and lifted her big emerald eyes to meet his own granite grey orbs…

“It’s ok Cindi…” he murmured softly and their mother repeated his words reassuringly, “This is a great thing that we are becoming, you’ll understand that very soon. Let me help you understand…”

Cindi didn’t fight as Adam pealed the remnants of the jumpsuit off her sleek young body; instead she relaxed and rested back into her mothers comforting arms. Her head pillowed in Linda’s massive cleavage as Adam spread her firm muscular thighs and rubbed the engorged head of his titanic tool against the soft moist lips of her pussy.

“Oh Adam…” whispered Cindi and her eyes snapped open wide as he slid his aching cock deep into her hot velvety tightness. “Oh ADAM!!”

“Oh Cindi…” He echoed relishing the warm feel of another sexy female family member stretched around his monstrous man-meat.

Her small hands pawed at his broad muscular chest as he took his first slow thrusts deep into her, she was far tighter than both his mother and his aunt had been and her shining eyes were wide as she took in his entire massive length. Adam grunted as her slick snatch seemed to suck at his ivory-hard pole, his hands working their way up from her strong hips over her slender waist to her huge melons.

Cindi gasped in pleasure as he sunk his fingers hungrily into the soft pliant flesh of them. She arched her back, pressing her trembling knockers eagerly up into his grasp as he continued his steady rhythmic strokes into his baby sister's clutching cunt. Fuck, her tits were amazing! Adam couldn’t take his eyes off of them; pink, flawless and perfectly round, they were firm and heavy with their new size and mass. Larger than two winter melons, they were big enough to make the top-heaviest zero-G stripper weep in admiration. The animal urgency in him grew and his shaky restraint on it began to fail…

“Fuck, Cindi…” he growled, his voice coming out as a harsh deep rumble.

“Yes! Fuck me, fuck Cindi!” she cried elatedly and lifted her hips to meet his thrusts as they came harder and faster. “Fuck Cindi, fuck me stupid bro!”

Their mother's hands roamed over Cindi’s body encouragingly as the two of them panted and heaved together desperately, her own breaths coming fast as she watched her two children coupling like wild things. Adam moaned and leaned forward over Cindi to kiss his mother passionately as his sister bucked and quivered on his stony cock beneath him.

Cindi seemed feverish with her need for him now, her long nails raking at his back as she tried to pull him closer, tried to take him deeper into her warm, tight snatch. Her enormous new breasts heaved as she gasped and panted for air; her soft skin shining with a sheen of sweat and Adam couldn’t get enough of it. He grunted with effort as he began to piston his hips back and forth madly, jack hammering his huge aching tool in and out of her sweet, snug pussy and Cindi’s whole body tremored beneath him with the **** of it.

“Oh Jesus… Adam, don’t stop… I’m cumming!” She rasped between ragged breaths. “Oh God Bro, I’M CUMMING!!”

Adam had dropped his mouth from his mother's lips to one of her stiff thimble-sized nipples and was suckling as hungrily as a newborn when he felt Cindi’s pussy clamp down around his monstrous shaft in an orgasmic spasm. The combined sound of his mother’s pleased murmurings and his sister’s climatic wail was sweet music to his ear, it also seemed to be a cue for his huge throbbing balls. They throbbed portentously…

“Here it cums Cindi!” Adam roared mindlessly, “Here cums your future!”

And he exploded deep into his gorgeous quivering sister’s hot cunt.

Cindi’s whole body arched and shuddered as though she had just been plugged into an electrical socket, tears ran between her closed eyelids and her mouth worked soundlessly as Adam fired load after heavy load of his thick Gorgon-tainted seed deep into her young waiting womb.

Releasing his lips from his mother's swollen nipple, Adam snaked his strong arms under his sister's arched back and lifted her until she was sitting facing him in his lap. Her soft enticing body sagged exhausted against Adam's as he blasted the last of his cum up into her silken folds and he smiled wickedly as he felt her huge soft new breasts press against his broad bare chest. Her head lolled onto his shoulder and he stroked her tangled mass of blonde hair tenderly as he felt her quivers of pleasure finally subside.

“Oh Adam…” Cindi breathed in sleepy satisfied tones.

“Oh Adam!” groaned his mother Linda excitedly and he looked up at her. There she was, sitting naked amongst the strewn remains of dinner on the table playing energetically with one massive wobbling tit whilst her other hand strayed down between her own gloriously parted thighs to try and satisfy her renewed need for him there.

Adam could never resist her, sliding his prettily addled sister gently out of his lap and off of his ever rigid cock he climbed purposefully up onto the table and into his mother's waiting clutches…