Michael had known weeks earlier that a change had overcome his sister, for she had begun exhibiting unusual behavior. The former sugar-sweet homecoming queen was suddenly acting like the town slut around him. She seemed to purr in his presence, rubbing up against him and teasing him with her tongue in his ear. All of this went unnoticed to the parents until the night of the full moon arrived. Michael's father had been called out that night to tackle PR on a triple homicide at a local convenient store, and his mother had called it an early night. With a heat in his loins that he hadn't felt in years, Michael still made a concerted effort to avoid his sister. As the full moon hovered in the dark sky, he tried to sneak past her unnoticed. But she had cornered him in his bedroom before he could make his escape.
"Where are you going, brother dear?" Kelly asked, a coquettish look across her face. Her rigid nipples poked prominently through her thin t-shirt, indicating that she was not wearing a bra. The thought of her naked tits underneath her shirt brought a low, rumbling growl from deep inside Michael, as his sister unsnapped her jeans. Grinning seductively, Kelly slid quickly and efficiently out of her jeans and t-shirt. "You weren't going to leave your little, ole sister here alone to play with herself again, were you?" she added, sliding a hand into her panties while massaging a naked breast. Her candy-colored nipples stiffened from her touch, as her eyelids fluttered and a gasp escaped her lips. Gathering her senses and gazing deep into her brother's eyes, Kelly's expression turned serious as she easily tore her lace panties off. Like his other victims, Kelly's chest rose and fell rapidly as her breathing turned erratic. His sister smiled wickedly as she noticed her brother licking his lips, as he stared at her glistening pussy. In a girlish tone, she giggled as her hands came up and squeezed her breasts together, her fingers teasing her nipples.
Michael could not resist his tempting sister any longer, as another deep growl escaped his lips. His own erratic breathing intensified, signaling that his transformation was complete. His sexual desire took hold of him, and he ripped his clothes off, revealing his twelve-inch cock. His sister's eyes widened as she grinned, licked her lips and whispered, "Yeah, big brother, that's just what I need!" Michael menacingly approached his sister and shoved her hard against the wall. Kelly grunted at the impact as her blonde hair fell across her face. Gazing lustfully at her brother through wisps of golden hair, Kelly bit her bottom lip and in a barely audible voice, whispered "your sister's waiting, Mikey!" With the wild look in his eyes, Michael approached his sister slowly. Placing his hands under her thighs, he raised his sister up against the wall, and slowly lowered her onto his immense cock. Kelly wrapped her arms around her brother's neck and let out an audible gasp, closing her eyes and reveling in the sensation of her brother's huge cock smoothing out her pussy. Michael fucked his sister mercilessly, slamming her up against the wall with every thrust, as she screamed her approval. Her screams of pleasure ultimately penetrated the walls and reached their sleeping mother. She had burst into the room just as Kelly moved into her third orgasm, as Michael finally shot his cum into her. With his back to his mother, he was unable to see the look that Mother and Daughter exchanged, as Michael's mom stared horrified into the grinning, wicked face of her satiated daughter. Michael doesn't remember anything else that night. His only recollection was waking in the middle of the football field of the high school he and his sister had attended.
Following the incident with his sister, new rounds of therapy began, both for Michael and his sister. His parents never spoke of the episode directly, but each month, as the full moon approached, Michael took his sister without their parent's knowledge. Rather, his sister took what she needed to satisfy her uncontrollable urges. And so, for nearly a year, this continued. Michael had focused so much of his energy on his sister that he failed to realize the effect his power was also having on his Mother. And so about a year after the initial episode with his sister, Michael's father came home late from work one night to find his proper, elementary schoolteacher wife riding their son's huge cock in total ecstasy.
His mother's transformation had not been as blatant as his sister's, yet it was just as significant. The close proximity of Michael's aura had changed her behavior unknowingly. In a gradual transformation of her own, Diane Loupierre had switched from conservative, full-length dresses to skirts and tight blouses; from no make-up to light lipstick and eye shadow; from flowing, long-sleeved cotton nightgowns to slinky, silk, low-cut nightgowns with spaghetti straps. And, she found herself unknowingly bending over more often to her son's lustful gaze - at breakfast as she poured syrup on his pancakes or in his room as she gathered dirty clothes. While the change went unnoticed to his mother, it was very noticeable to Michael, whose cock became almost constantly hard at the sight of his Mom's suddenly braless tits, which hung in plain view when she was bent over. Their small size gave him full view of her entire breasts, milky white with unusually large, stiff, rose-colored nipples. As the full moon approached one cycle in particular, Michael found it harder and harder to get his mother out of his mind.
Finally, on the night in question and as the full moon shone brightly in the night sky, Michael's transformation began as he lay on his bed. The change in physique was especially agonizing this night as he writhed and squirmed, ripping off his clothes. A sharp pain shot through his body, causing a loud groan to escape his lips. The sound quickly brought his mother to his bedroom door, suspecting her son and daughter were fucking again.
She was about to knock when Michael let out a final guttural groan of pain before the transformation was complete. With her anger rising from suspicion, his mother burst into his room and met him face to face. Her head immediately grew lightheaded in his presence, as she fought to catch her breath. Her nostrils flared and her chest rose and fell, as her low-cut nightgown suddenly displayed a fine sheen of perspiration across the tops of her small breasts. Her large nipples immediately hardened, poking prominently through the thin gown. "Michael, I..I...," she attempted to say before losing her thought, her eyes zeroing in on his tremendous hard cock, oozing precum. Michael approached his mother. They stood facing each other, their breathing erratic. Suddenly, with lightning fast reflexes, Michael ripped the nightgown from his mother's body, leaving not even as much as a single, tiny scratch on her. Frightened at the sudden motion, Diane closed her eyes and turned her head sideways, holding her breath momentarily. But just as quickly, her expression relaxed and she opened her eyes. In them, Michael found the same lust-filled desire that he'd seen in Amara and his sister. Naked and smiling seductively, his mother stuck her tongue out sensually and licked the corner of his mouth, his upper lip and his chin. "You know, Mikey," she said, "mommy's needs haven't been filled in over a year," she gasped, running an index finger around one of Michael's nipples. Michael growled, as his mother continued. "You could fill my needs, Mikey. Please, baby! Fuck your mother!" she hissed, just before driving her tongue deep into his mouth. Michael moaned deeply into his mother's mouth before breaking the kiss. Grinning menacingly, he grabbed his mother's breasts! "Ah!!!" Diane groaned, turning her head sideways as Michael kissed her neck, her sternum, and the underside of a breast before taking a turgid, rubbery nipple between his lips.
"Ugh!!!" his mother groaned as she closed her eyes and ran a hand through his hair. "Ah!!! My baby boy!!! Yessss!!" she hissed, as Michael grabbed a handful of his mother's hair and forced her to her knees. Staring up into her son's eyes, Diane smiled seductively before turning her attention to his cock, dangling inches from her lips. She licked the pre-cum from its tip, leaving a thin strand hanging from her tongue to his cock, before taking him into her mouth. Michael growled and closed his eyes, as his mother sucked his cock deeper. She managed to suck four or five inches of the immense cock, while stroking the rest of it furiously and moaning. Michael ran his hands roughly through his mother's hair, forcing her head back and forth over his cock, at times gagging her with its size. But his mother sucked his cock expertly, causing Michael to reach orgasm almost instantly as he erupted into her mouth, sending streams of ropey, white cum onto her tongue and down her throat. The amount was overwhelming as his Mother gagged and released his cock, cum flowing from the corners of her mouth and down her chin and neck. Michael's head spun from the sudden drain in adrenaline. His vision blurred as he stared down at his cum covered mother. "Mmmm!!!" she moaned contented, wiping his thick cum into her mouth.
In his altered state, Michael remained hard, and his mother took notice. In her overwhelmingly aroused state, Diane stood and pushed her son back onto his bed. His momentary weak state allowed her to maneuver him, as she straddled her son's hips and slowly impaled herself on the biggest cock of her life. "Oh...my...god!!! Fuck!!!!" she wailed, before a wicked smile spread across her face, coming to rest on his groin - his entire cock flexing inside her. Her eyes fluttered and her mouth went slack as she began to rise up and down on her son's cock. She bucked up and down mumbling incoherently, as she massaged her breasts. And so, Michael's mother β like his sister - took what she needed from her son. And that was how his father found them.
Michael recalled how his father had attempted to break mother and son apart until he had gazed into his son's eyes and retreated in fear. Crouching into a sofa chair opposite the bed, his father watched in agony as his wife gyrated atop their son, all the while staring and grinning at her cowering husband. Eventually, mother and son screamed in pleasure, as their orgasms exploded simultaneously, while Bert Loupierre stared blankly at the full moon through the window. When it was over, his mother French-kissed her son lovingly before slumping next to him, drained. Michael rose and approached his father, gazing at him. Tears ran down Bert's cheeks as he stared at his sick son. From deep within the entity that possessed him, Michael felt a sorrow grip his heart at seeing his Father's pain. With a sudden rage overwhelming him, Michael let out a painful wail before bursting through the glass window and leaping into the darkness. In an instant, he was gone. And like so many times before, Michael awoke in the cold and dampness of the misty morning, miles from his home.