Note to readers: This story is a continuation of Tia and Tim's evolving sexual relationship and its impact on producing a family. The reader is challenged to accept that these morays could easily exist as normal in the 22nd century.
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FOREWORD
In an early afternoon telephone conversation, Tia informed Gwn that she expected to be fertile over the weekend and suggested that it would be a good time for Greg to come over. Tia also let Gwn know that her husband, Tim, would be at the beach cottage doing some repair work and would welcome her presence if she could arrange it.
This, of course was a general plan that the two couples had discussed earlier in Tia and Tim's efforts to have their second child. Soon after Tim and Tia were married they discovered that Tim was infertile. In their efforts to have children a special program was developed for them by The New Life Center (NLC). They finally decided on a sperm donor program that involved person to person intercourse for impregnation. Greg was selected by Tia and Tim to become the biological father of their first child. The impregnation was successful and the result was a son for Tim and Tia.
At the time of her first pregnancy, Tia was a senior research assistant at The New Life Center and was able to benefit from the some of the most modern techniques of creating pregnancy. Tia had now become a full-time research associate.
Tia's first impregnation was an intense, highly erotic, physically demanding three days of sexual activity conducted as a scientific experiment. There were no regrets. Tia fully understood that the process of impregnation was a very intimate process. It was supposed to be focused more on the physicality of conception. The entire breeding experiment was designed to be unemotional, without any long-term attachment.
Contrary to those objectives, Tia found that, indeed, an emotional tie had resulted from the first impregnation. While she was part of a research group specializing in objective approaches to human reproduction, unintended consequences seemed to have taken place. She had longed to make contact with Greg again. When he performed his first breeding function with her, it was supposed to be without emotion. His purpose in the procedure was only to inject the sperm into Tia's fertile womb. After that function was performed successfully a longing for him lingered on, even after little Rik was born. She was left wanting. She yearned to get to know him better; after all, he was the biological father of her first child.
In a unique circumstance of luck, Tia and Tim ran into Greg and Gwn at a shopping mall in a nearby city. Tia had not seen Greg since the initial breeding and was quite surprised when they met. Nervousness crept over her after seeing Greg again.
In addition, this was the first time their respective spouses had the opportunity of meeting.
Greg's wife Gwn was an attractive petite, tiny waisted brunette who looked even smaller beside her 6'4" husband. In another twist of fate their respective mates, Tim and Gwn, seemed to hit it off immediately.
Tia and Greg's conversation centered on little Rik with Greg becoming very interested in hearing everything he could about his biological son.
Greg and Gwn were parents of three year old girl and both still wanted a little boy.
The lucky meeting rekindled new desires in the two couples and as a result they reconnected sexually and interchangeably on two previous occasions. Both couples had been looking for an opportunity to expand their sex lives. The timing was perfect. Greg, being the natural father of little Rik became the person Tia was looking for to both enhance her sexual craving for the occasional outside partner and was the most appropriate subject to impregnate her with her second child. Two children resulting from the same biological parents would mean that both would be true brothers and sisters. Tia thought that would be special for the kids.
The sex between Tim and Gwn was developing into a real pleasure respite for the both of them as well.
Both couples had agreed to keep their meetings to about once a month so that the anticipation of wait would drive them toward that intense pleasurable coupling. Tia's motivation was timed to land on her fertile days when she was at her peak libido period.
I. Tia and Greg Again
Tia could hardly contain her excitement as Greg drove his car into the garage. Conveniently, both couples had purchased identical cars so that little or no suspicion would be raised with the neighbors as they pursued a very private interchanging relationship.
On this particular evening, Tia, knowingly was feeling extremely horny. She attributed most of these feelings to the fact that she was ovulating. She had taken all of her vitamins as well as the gender pill that would insure that she conceived a little girl. She had already decided that tonight she would completely free herself of all inhibition and completely make a slut of herself. She now felt comfortable enough with Greg to show the uninhibited side of her personality.
As Greg entered the Kitchen area, Tia approached him in a full frontal assault and walked him against the wall, keeping her breasts firmly pressed into his midsection. There was no talking; their lips met briefly and their mouths opened to consume the other. Greg cupped Tia's ass in his huge hands and rolled her pelvis into his groin. Tia returned the pressure as she tore open his shirt while emitting a low tone passion filled moan.
Reluctantly they parted, backed away, and stood motionless admiring the lust filled condition in each of their bodies. Tia reached in her hair, pulled a ribbon and her beautiful blonde hair cascaded onto her shoulders. Without speaking, both simultaneously began to remove their clothing. There would be little foreplay; no time wasting preliminaries. Each of them was driven to get on with the selective breeding they had planned.
They stood alone admiring the aroused state of the other. Tia smiled, cupped and pushed her breasts up in a brazen display of arousal for Greg. She was presented a view of Greg's engorged cock leaking pre-cum. The wanton display of Greg's swollen organ intensified her hunger. Her imagination magnified her lust as she paused to admire this breeding animal standing before her. His plus size cock stood slightly raised, glistening, in coital fluids. She could hardly wait to be impaled and pounded into a complete mass of quivering flesh.
Tia approached Greg, reached out and gathered his fluids in her hand and coated his cock with gentle loving strokes. She tenderly mixed his fluids with her profusely flowing lubrication. Her sensitive clitoris was made ready for the anticipated phallic massage. Greg attempted to stand motionless with his hands on hips and his legs slightly spread. Tia marveled at the prize stud she had chosen. She, herself, was an animal in season. She softly caressed Greg's scrotum and noticed how tight his balls were being pulled into the base of his cock. Tenderly she held a testicle in each hand and shuddered to think of the life being produced in each sack. "That feels so tense, how much sperm and semen do you have in there for me," Tia smiled and asked?
Laughing quietly, Greg said, "I think we can make a three or four cum run if you don't give out on me."
Tia took up the challenging banter and responded, "Before I'm through, you will be completely drained. I want to be so knocked up before morning."
There was no doubt in her mind that the forces of procreation would be satisfied this evening. With Greg's cock in hand, Tia slowly raised her right leg and encircled his fine tuned gluts. To balance herself she tucked the back of her heel in the crack of Greg's butt and angled his hardened member downward, placing it between her swollen labia.
Greg, with his back against the wall helped Tia maintain her balance while she undulated her groin on top of his hardened cock. Squishing sounds of their well lubricated genitals added to the carnal rutting of each partner. That indescribable odor of sexual arousal flooded their nostrils. Greg's glans probed the back of Tia's hungry opening.
Suddenly Greg grasped Tia's butt and lifted her into his arms. Tia's lips urgently found his. Her gut arched in a position of reception. The penetration was quick...it was swift. With the precision of a surgeon and the ferocity of a enraged predator, the coupling was complete. Quite sounds of ecstasy escaped Tia's lips. She gasped for breath and absorbed the pleasure of the sudden invasion. She sensed a deep fullness that only Greg could administer. Fully impaled on Greg's massive cock, Tia locked her legs around his back and anchored her labia solidly against his pubic bone.
Through the fog of lust, Tia sensed that she was being carried to her bedroom by a mass of male muscle. Greg's plundering rod probed depths she was not accustomed. She rode his flesh savoring every once of ecstasy she could experience.
Greg reached her bed and with great strength continued to cradle her in his arms while lowering her into a reclining position without any hint of withdrawal.
Tia held on clasping and massaging his cock with her fine tuned inner cunt muscles. With her long legs tightly locked around Greg's back, she refused to allow any exit. She arched her back onto her shoulders and lifted Greg's entire weight onto the back of her thighs. At that moment, she opened her legs to allow the deepest penetration possible.
Each stroke Greg administered was done slowly and each time he plunged his full length to her greatest depths. Amidst frequent groans Greg muttered. "That is so fucking good...I'm close...Can't hold on much longer."
Tia had put herself in a position that allowed Greg a constant and repetitive bumping of her cervix. Under more normal circumstances the feeling would have been uncomfortable, but on this occasion, the perversion was extremely erotic. The primal sounds coupled with the unique pounding her cervix was getting hastened her first orgasm. Tia sensed that last second pre-eruption swelling in his cock. "Give it to me...shoot that cum in me... fill me up...knock me up Greg", she cried.
Hearing Tia's passionate pleas triggered a massive explosion beginning deep within the inner recesses of Greg's balls. His gut cramped and uncontrolled spasms ejected several massive streams of cum onto the face of her uterus. Spasmodic clutches of Gwn's inner muscles milked and soothed Greg's highly sensitive organ.
The spasm's faded and the most peaceful feeling a man can experience began to flow from the top of Greg's head to the tips of his toes.
