Author's note: Not everyone appreciates May-December stories that involve incest, so if that is you, this story isn't you.
Pieter Strauss III, aka Trey, a young student who had a little over a year earlier lost his university Professor father, Pieter Strauss Jnr, himself son of another Professor, Pieter Strauss Snr, had a summer holiday fling with a mature lady, Sarah, then later learned, on his return to university in September, that the lady was in fact his father's sister - his aunt - and his father's replacement at the university. After some heart-felt discussions, they decided to live secretly as a couple while looking simply like Aunt/Nephew house mates to the outside world.
This story starts at the end of the third - summer - session of Sarah's first year teaching and Trey's third year as a student, almost a year after they met. The summer holidays have just started after the last few days of classes. Trey is coming up 24, his birthday being Aug 3rd, and Sarah is approaching 59. Trey was waiting to hear his exam results for his third year, although he had no doubt about his entry into the fourth year..
University is down for the summer, although faculty do go in there from time to time to check email, pick up real mail, and work quietly on new material for the upcoming year. Sarah had received some new data from NASA from the Hubble and wanted to go through it, so had gone in for the day.
She was sitting at her desk looking at pages of tables of new measurements when there was a gentle knock at her door. It was Liz - Professor Fotheringham - with whom Sarah and Trey had enjoyed some pleasurable time at the cottage about a week and a half before.
Liz was wearing shorts and a simple white spaghetti-strapped top that clearly revealed she had nothing on underneath. Her nipples were quite pronounced. Sarah stood up and walked towards Liz, saying "I can see you're pleased to see me."
Liz smiled and they kissed. "I saw your car outside, and popped in to say Charlie and I are going down to the Capital at the weekend if you want to join us. Call me tonight and let me know, and if you're coming I'll book a double suite."
"Ok, I'll talk to Trey. I do believe our weekend is free, so it could well be a go."
They kissed again and Liz left.
Arriving home that night, Sarah told Trey about the weekend as he mixed a couple of martinis. "Really? I must say, I found Liz a surprisingly sensuous woman when we had sex. Completely the opposite of her reputation. And she has a bit of a dirty mind for an Arts teacher!"
"True, and Charlie was a somewhat pleasant surprise in bed, too, for an older guy, but they are wanting us to go to the swingers club with them. What do you think?"
"Well, despite what may or may not happen at the club, I find Charlie and Liz, when they are being Charlie and Liz and not Dean and Professor, actually really nice people. Charlie sure sheds his inhibitions as well as his stuffiness when he sheds his clothes. I enjoyed our time with them at the cottage, especially when it was just the four of us. I guess going once as guests doesn't get us too involved. Just not sure how I feel about public sex with total strangers."
So Sarah phoned Liz, and arrangements were made for the two couples to make their own way to the hotel and have dinner together.
"Charlie actually does have a meeting Friday morning, so we are going early. So when we get down there, we'll text you the room number. Then we'll go to the club Saturday evening." And so the arrangements were made.
It was a couple of hours drive to the State Capitol, and Liz arranged a reservation for dinner at 7 in the hotel restaurant, and so, at that time, all four were enjoying a martini and looking at the menu. The food turned out to be pretty good, and the wine flowed, and by 9 p.m. when they headed up to the room, no-one was feeling any pain. As they entered the room, Sarah looked at Trey, who nodded back discretely, and then said to Liz "Feel like trading men for the night? After all, tomorrow night, there will be a lot more fish in the pond!"
Liz smiled. "It would be my pleasure to get Trey to myself again. Come Trey, let's take this bed over here."
It was classed as a suite, and in one sense, it was, as the sitting room was separate from the bedroom. However, both beds were in the same room, two Queen-sized beds. So Liz and Trey headed for one, while Charlie scooped Sarah up easily, and headed for the other, putting her down standing next to it. He turned her around and started to unzip the back of her dress.
Sarah was wearing a sleeveless summer dress, and it was soon apparent to Charlie that under it, she was completely naked. No bra, no panties, no pantyhose.
Meanwhile, Liz was going great guns divesting Trey of his clothes, until he was left only in a pair of white briefs with a pronounced bulge in front. Liz's dress was a bright blue button through, with 8 large white buttons running down the front, and Trey had those popped in no time. Under it she had only a plain but bright-red G-string, which barely covered her vaginal slit. As she stood and shucked the dress off, Trey knelt down and removed the G-String, as well as his own briefs. They pulled the covers back and got into bed.
Naked, Sarah was enjoying undressing Charlie. Even though it was summer, holidays and Friday, Charlie was in full uniform. White shirt, blue tie, and a charcoal-grey suit. Sarah undressed him carefully, getting him down to a pair of plain black boxers. She knelt in front of him, and pulled the boxers straight down, which of course pulled his shaft down to his thighs, and then released it to spring right up, almost hitting Sarah's face.
"I can see this could be a dangerous weapon, we will have to neutralize it in some way." and promptly buried it in her mouth. Charlie stood there, gently holding Sarah's head as she bobbed in and out along his tumid shaft.
"On second thoughts," said Sarah, "there might be a more pleasurable way of temporarily disarming this thing." She stood up, pulled the covers down and pushed Charlie back on to the bed. He got himself comfy, with his cock sticking up proudly. Sarah straddled him, grasped his cock and lowered herself on to it, slowly going up and down on her knees, each time going further down.
Charlie's cock was actually quite fat and filled Sarah quite nicely. She leaned forward and put her hands either side of Charlie's head, so she could tease him by dragging her nipples all over his face. As they went by his mouth, he would try and lick or bite them.
Trey had put Liz on her back with her bum tilted up by a pillow, and had straddled, kneeling, across her, one thigh behind her bum, the other beside her waist, so that his crotch was directly above hers. He got the tip of his cock into her pussy, and was now wriggling back and forth so as to work himself into her vagina. Eventually he would get his crotch right down to hers, with his whole length buried inside her.
"My God, Trey," she managed to say between panting, "I've only ever been in this position with a woman. Oh God, it feels good!" Using her left leg that was pointing up in the air, Trey was able to raise and lower himself in and partially out of Liz's pussy. Liz became really moist.
There were sounds of heavy breathing and well-stimulated moans coming from both beds. As Sarah held herself still for a few moments to feel the sensations of an orgasm, Charlie got her left nipple into his mouth and bit on it, quite hard. His tongue was playing with the hard nub of her nipple, and then to cap it all, she felt his thumb rubbing on her clit. In combination it all made her shudders go on for quite a while as she enjoyed a multiple climax. She could feel Charlie's ejaculate leaking out of her.
Charlie released Sarah's nipple, and she rolled off him on to her back. She and Charlie watched Trey scissoring Liz. Charlie laughed. "If I tried that, I would need a chiropractor or a crane to get me off her!. True what George Bernard Shaw said: 'Youth is wonderful, it's a shame it's wasted on the young.'"
"I don't know, Charlie," said Sarah, 'I don't find his youth wasted when he uses it on me!"
Liz finally came, with a scream of pleasure and release, and Trey allowed himself to fall over on his side, next to Liz's bum. He wriggled clear of her, and then he pulled away the pillow so she could lay flat. As Liz lay there, Sarah noticed that even though she was slim almost to being skinny, and was completely flat-chested, she actually had a nice pair of legs.
Charlie got out of the bed, and walked over to a cabinet in the sitting room. "Red or white?" he called out. Every one opted for red, so Charlie took out a bottle of Spanish Tempranillo and opened it, pouring the whole bottle between 4 glasses. There was a tray there that he used to bring the glasses back to the beds.
"So how does this work tomorrow evening, then?" asked Sarah, always 'the arranger'.
"Well," said Liz, "we are members, so when we get there, we will sign you in and pay your temporary memberships - we can sort out the money stuff next week, no problem - and then each couple goes into a changing room, undresses, and puts their clothes in a locker, and one of you wears the key on a band on your wrist. The key has a number on it, and they note that if you get a drink. You pay as you leave for those.