Incestuous Duo

Susan giggled as she felt Mike's dexterous fingers slide between her legs and idly rub her slick folds. Before her rebirth, she would have found such behaviour to be disgusting, now she revelled in the wrongness of the act. Trails of greenish cum oozed out from Susan’s gravity-defying breasts as she eased them against her son’s back and gently stroked his engorged cock. Further streams of the goo eased from his tip and pooled into the carpet below them.

Mike grinned as he wrapped his hand around the door handle and gently opened it. The room itself seemed completely devoid of light, except the glowing rectangle of light from Sara's laptop screen. Susan’s light green eyes dart upward and notice Sara’s headphones perched atop her head, a predatory grin crosses her lips as she moves stealthily forwards.

Sara is completely unaware of the intrusion as she sits idly watching the motion on the screen. As Susan gets closer to her daughter she catches sight of the video and releases a soft laugh from between her bulbous lips. After locking the door behind them, Mike sidles up next to his incestuous lover and gazes at the screen with her.

Both of them turn to each other and smile as Sara watches a girl crazily lapping at another bare pussy whilst she’s savagely taken from behind. Wanting to make their presence known Mike ambles away from Sara and flicks on the light switch. Panic washes across Sara’s features as she pulls the headset away before turning around to see the perverted duo her family have become.

Susan’s plump lips curl upward into a predatory grin as parts them to mewl; “Now Sara, there’s no need to look at me like that.” Greenish ooze trickled from her breasts as Mike staggered over and slapped his mother's rotund ass making her purr with pleasure. Wanting to get away from her former family, Sara leapt up from the chair and sprinted for the door.

Mike began to casually walk toward Sara, his erect cock spewing more of the greenish slide onto the floor beneath his feet. Susan sidled up next to him as they both strode purposefully toward the door. Sara was frantically pulling at the door with no effect, a scream tumbled from her lips as she turned around to bellow; “What the fuck happened to you both.” A tear rolled down her frantic features as she watched the two of them edge closer.

Susan looked concerned as she parted her slick cocksuckers to speak; “There's no need to cry Sara, all your brother did was bless me.” Sara look confused as she repeated, “Blessed you?” Susan nodded whilst she ran her hand through Sara’s light blonde locks before wrapping them around her hand.

A visible chill ran through Sara’s body as her mother grinned down at her before speaking in a nonchalant tone; “After watching a bit of your video, Mike and I thought we’d help you to reenact it.” Sara’s eyes widened in shock as Susan wrenched her daughter away from the door. Mike grinned as he watched his sister struggle and knew she would soon join them in bliss.

Sara screamed at top of her lungs time and time again before her mother momentarily stopped pulling her. Tears welled up in Sara’s puffy red eyes as she looked up into her mother’s and parted her lips to beg; “Please let me go, I’m sure help can be found and we can get you cured.” Susan’s eyes shone brightly as she wrenched her daughter forward and face-first into her dripping cunt.

Panic flooded Sara’s mind as she tried to breathe but knew she couldn’t without ingesting any of the foul ichor that had warped her family into those sexual monsters. Susan cackled maniacally as she squirted a fresh load of noxious cum onto her daughter's face.

Mike laughed as he lifted Sara’s denim skirt up to reveal her bare glistening pussy and grinned as he lined up his oozing cock with it. Wanting to speed up the infection Mike rammed his cock forward into his sister’s slick cunt. Sara desperately tried to suppress a guttural moan as she didn’t want to end up like the others.

Not only was Sara on the cusp of orgasm she was also overwhelmed with panic as her oxygen rapidly depleted. Taking a chance she parted her lips just as Susan released another torrent of cum. As soon as the greenish ooze hit her tastebuds Sara knew her fate had been sealed.

New thoughts ran through her corrupting mind as she extended her tongue and began to lap between the slick folds of her mums cunt. Susan groaned in delight as Mike erupted within his sister, Sara’s lapping intensified as she was overcome with lustful urges. Looking down Mike was overjoyed to see Sara’s former flat chest blossom outwards with a pair of firm DD’s.

Greenish ichor cascaded out from Sara’s tits as she felt her body shift into a more voluptuous form. Sara pushed her mum away and through her blonde locks away from her carnal features before looking up into her mum’s green eyes. Susan dropped her daughter a knowing wink as Sara’s eyes shone a luminous jade.

Sara’s lips plumped out as she felt mike slide out from her soaked pussy lips before easing herself upward. Cum oozed from every orifice as she felt her brother’s hand on her pert bubble butt. A low groan slid from her lips as she watched her belly inflate with more of the alien masters and she revelled in the multiple orgasms that rocked her lithe form.

She knew she shouldn’t have questioned her family, they were only looking out for her. As the three of them stalked out of Sara’s room there came a knock on the door. Sara giggled as she hefted an enlarged breast to her lips before taking a quick swig. This time the bell rang and Susan parted her lips to speak; “I think it's only fair we let them in, maybe they’ll join us in a little get-together.”

Sara’s eyes shone in anticipation as she ran a deft finger over her slick pussy lips and followed her family downstairs, eager to find who was at the door…