It may help to have read the previous parts, but I will try to make this a free-standing story.
*****
Karen was shaking. Perspiration glistened on her forehead and rivulets ran down the small of her back, and from her neck, between her heaving breasts and into the waistband of her silken undies. The light-green material of her shorts was darkening with the moisture and the fabric clung to her butt-cheeks and thighs. Her raven black hair laid heavy and wet on her shoulders and tiny drops of sweat beaded-up on the tips of her nipples and nose. She certainly didn't look or feel sexy and infact she believed that the sight of her would only serve to frighten her young daughter.
She was being sent by her son and master, to recruit her daughter into their incestuous little affair. Half-naked and jittery, she was compelled to carry out her mission. Mike was adamant that she deliver young Jenny into his clutches. And to teach her the new rules of the house.
And now, the "talk."
How was she to tell her nineteen year-old daughter, that her older brother wanted her as his sex slave? How could she explain that she, herself, already serviced him in all his deviant desires? And worst of all, that this episode was triggering prurient images in her own mind. She loved that Michael had taken control of her body and that by "forcing" her to comply to his wishes, she did not have to admit that she was captivated by these hidden longings. It seemed so much dirtier that she only followed orders and it could not really be incest if she was an "unwilling" participant. And now, her master was again demanding her obedience. She must "obey."
When she entered the room, Jen was instantly startled. Jenny had seen her mother undressed before, at pools or in the bathroom. But this was beyond weird. Karen sat beside her on the bed as Jen was stripping-off her bikini to take a shower. For a minute, Jen thought to cover her nakedness. But then she thought that her mom must have been tanning as had she. Jenny continued to wipe oil off of her bronzed body and offered another towel to her mother. Karen noticed that her lovely daughter had no tan lines. Her long, lean legs led up to a small triangle of wiry black hair. Her belly, rippling with abdominals, set of her round, perky tits. Karen figured her for a 34B with the same obscenely dark nipples as her mother. Jen was detangling her silky, black mop with her slender fingers and wrapped a towel around her luscious body. "Mom, I'm about to shower. I need to wash-off this oil and sand. Is there something you want?"
Karen felt suddenly extremely self-conscious and could only shake her head. She covered her own bare breasts with her arms and opened the door to leave. Her mind was racing and she was torn between motherly affection for this young girl and a burning desire to ravish this beautiful woman. Her pulse beat rapidly and her temperature began to soar. She had to get out or something awful would happen. "We'll talk later, dear," was all she could muster, as she stumbled down the hall on her wobbly legs.
Mike was lounging naked on his bed when she returned. The rumpled sheets lay at the foot of the bed, a testament of their earlier romp. Only his stiff cock and evil grin betrayed his angelic features. The smile faded quickly when Karen reappeared after just five minutes. When he saw her bundled in a large white beach-towel, he knew that she had failed at her assignment.
She had been apprehensive about the entire endeavor, but now seeing Mike's countenance suddenly darken, she felt a cold chill.
"Come over hear now and suck my cock," he demanded, snapping his fingers and pointing towards his crotch. "You better learn to listen and follow orders." He reached for her roughly. He slid the flap of her shorts aside and plunged two fingers inside her pussy. Like towing a car, he yanked her to him, nearly dragging her to the edge of the bed. Mike swung his legs to the floor and with a heavy hand on her shoulder, he drove her to her knees . Karen felt her dark hair being pulled by the roots and knew instinctively that she better wrap her soft, pink lips around his pole and suck it dry. She slurped and gulped, spit running down her chin and neck. Her hand was a blur pumping his swollen cock and praying that she could soon make him cum. He had taught her many tricks in the previous few days on how to bring him off. And his mood always eased when he shot his load in her mouth. She used all her skills on this one. Mike's fingers, now wet with her juices worked their way to her backside. She knew what was about to happen, but didn't dare to move her mouth from his engorged rod. Two digits forced open her tightly puckered asshole. She let out a small yip and almost hopped off the floor. Her concentration never waivered, her mouth remained glued to his cock. This would be the best blow-job anyone had ever performed.
Having given about twenty headjobs in the last few days, she understood what he wanted and how he liked it. Her high-protein diet had acquired in her, a taste for his semen and there was by now, very little spitting or choking. In just a few more strokes she could feel the torrent of cum smack the back wall of her throat.
Mike groaned-out a veiled compliment, "that's better whore, suck it all down and rinse it clean." He jabbed his fingers even deeper into her ass and she started to quake. Karen learned that Mike could bring her to orgasm in a dozen ways. One week ago she could never imagine having an orgasm with anything in either her mouth or her ass. Today she had both and was shaking hard enough to rattle the windows!
Secretly, maybe it was the hidden thrill of fucking her son. Or the submission she meekly accepted as he ordered her to strip and to diddle her pussy. "Slut, whore and bitch," were just words to start the foreplay. It was the most sex she had had in years, and by far the most and best orgasms. All her fantasies and perversions were coming to life, it was a thrill-a-minute and each day a new surprise. This is what sex was supposed to be like!
