Part One:
Life was great, thought Mark, as he lay next to his Aunt Robin one evening. Their naked bodies, still moist from the heat of their recent coitus, were pressed together. It had been almost a year that he had discovered the joys of family sex. Thank you so much, Professor Nusselheim, whoever you were!
He was so relaxed. He dated a few girls without the pressure to get laid because he knew that his mother or aunt would help him relieve his sexual urges and prevent frustration. He had continued with his recent girlfriend, Antonia, because she was not only a beauty, but a real person, a girl with a mind and ambitions beyond getting married and having children. She was also a freshman at his college, and his developing emotional bond to her seemed to be matched by her own growing attachment to him.
He discussed his attraction with his mother and aunt, and they encouraged him and merely reminded him to practice safe sex, not only to protect himself, but them as well. He had told them not to worry because he and Antonia had done nothing yet beyond a little fingering and deep kissing. Without the pressure to score, he could afford to wait, and wait he did for the inevitable reward. She had informed him that she was still a virgin, and wanted to be sure before she gave herself completely to a lover.
Another great benefit was his academic success. Without the need to chase babes all the time, Mark was able to concentrate on his schoolwork. He went out with Antonia once each week on a real date, and they studied together in the library and ate lunch in the Union most days. Mark's mother told to him that Nusselheim himself had mentioned this as a secondary benefit of family sex: the members were relieved of the pursuit of sexual congress and had more free time for the other tasks of their lives. Mark sometimes would sit back and watch the other guys try to connect with girls, often fruitlessly, wasting precious time that could be better spent on their studies.
As for his aunt, he and his dad took turns keeping her hungry pussy happy. Sometimes his mother and his aunt would get together too or join either him or his dad in a threesome. He remembered the days at the lake...
His sister Julie had been invited to stay with a high school chum the week after graduation. Her friend's family had a big house and a pool. The two girls would be able to relax after the arduous final exams before they began their summer jobs. Mark, Aunt Robin, his mother Emma, and his father Roger took the opportunity to visit the family cabin a the lake to complete its opening for the season.
When they arrived, his mother reminded Mark that they were in a first name situation, a mode they always adopted when they were not just family, but loving relatives. The two women changed into skinny bikinis due to the warm, humid weather. Dad and Mark wore old bathing suits. Since this was not the first visit to the cabin, it only took a few hours to dust, sweep, and wash down little bungalow. Mark felt his dick swell several times as he watched Emma's heavy boobs bounce about in her flimsy top, and, complemented by Robin's cute, firmer pair, Mark knew that he would need relief long before the Sun would set.
"Making you randy, huh," Roger said privately to his son.
"God damn, they are so sexy," Rog," Mark replied. "I don't know how you were able to keep them both happy, just yourself."
"I bore up, Mark; I bore up," his father assured him. Just then Emma stuck her head out a cabin window.
"How about a quick swim to rinse off, and then we can relax," she said.
"Sounds good to me," Roger answered. Since it was a Thursday, no one was about, and the other cabins were a distance away. He peeled off his suit and left in on the porch rail. Mark did the same and followed his dad down to the little dock, where a sixteen foot canoe was tied. They walked down the pebbled beach into the cool water. When they were in the water up to their chests they turned around to enjoy the sight of Emma and Robin strolling nakedly toward them. What a fine visual offering the two sisters made!
Emma and Robin walked out onto the dock and climbed into the canoe. Robin untied the rope and joined her sister in paddling the canoe, using only hands, out to deeper water.
"Let's do the canoe game for a while," Emma said. They all liked that game not only because it was fun but also because it was good emergency training. For the next half hour they repeatedly capsized the canoe and practice refloating it and bailing it out. They got to admire each others nudity as they took turns being the first to slide into the canoe, still partially filled with water.
"Enough," cried out Robin. "I'm becoming chilled."
"Yes," agreed Emma, "let's get out, dry off, and warm up." The canoe was brought to the dock, emptied out, and retied to its cleat. Mark picked up an old soccer ball and tossed it to his dad. He tossed it to Robin, and the drying off game had begun. The pace of the game was sufficient to dry them off in the late afternoon sunlight without making them sweat.
"Should we go inside now?" Mark asked. "I'm dry and warm."
"Listen to him," Emma jeered. "I know what he wants. His cock has been swelling and shrinking all afternoon."
"Well, sister, maybe you can help him; he's your boy." Robin laughed and glanced at Roger. Emma and Mark coupled would leave them paired up.
"You know," Roger announced, "this could be, for Mark, his first foursome, if we want to do it that way. Maybe we should let Mark experience his first group encounter."
Emma broke the brief silence. "Yes, why don't we do that. Mark should get the experience, and so should we; it has been a while for all of us."
