This story could have been in any one of a number of categories. 'Loving wives' (mostly), 'first time' (unfaithful), 'group sex' (four together), but I decided on 'erotic couplings'. Please comment on which you feel would have been the right one.
More importantly, I hope you enjoy the story.
"There is no way your sister is coming to live here, temporarily not."
"Why not, I thought you liked my sister?"
"Where do I start? She is a bad influence on you. She flirts with everyone, including me. She is manipulative. She has a terrible taste in men."
"That's a bit unfair; she only got me in trouble once, well okay twice. Yes, she is a flirt, but she flirts with you, because she has always said that she fancies you. I suppose that does confirm that she has a terrible taste in men."
"So, your sister fancying me, makes her flirting with me okay, does it? I think I might find her living under the same roof rather difficult."
"Are you saying that you find my sister attractive?"
"I am not sure that I should answer that question. Whatever I say, could be used against me. You know what effect she has on nearly all men, and in case you haven't noticed, I am a man. She is frighteningly like you in some ways, and I think things could get very awkward."
"Look, I have said she can come and stay until the end of the month. I can't go back on my word, can I?"
Paul had always struggled when it came to his wife's sister, Jen. Jen looked very like her older sister, Patty. They were very different in character, but Paul had always found her frighteningly attractive. He didn't like to admit it to himself and certainly had never told Patty. Patty didn't need to be told. There had always been a certain buzz when the three were together.
The first 24 hours.
Within two days, Jen was on the doorstep with an overnight bag. Her greeting of Paul was outrageous, even by her standards.
"He is looking even more of a hunk than he used to. You must be working out hard in the gym, to look that good, Paul."
She said this having given him a huge hug and stepped back to look him up and down. With the same enthusiasm she added,
"This is where you tell your sister-in-law that she is looking drop dead gorgeous."
Laughing, Paul pretended to be looking her up and down with a critical eye.
"You're looking okay, for an old girl."
"You cheeky fucker, you will pay for that comment. Anyway, what does that make you, if I am an old girl?
Patty decided it was time to calm things down a little and suggested a cup of tea or coffee. The rest of the day was taken up picking up Jen's belonging. By the end of it, all three were exhausted. It was therefore a surprise when Jen announced,
"I am going clubbing. It would be great if you both join me. It has a great atmosphere and the music is spot on."
Paul immediately declined and Patty was not far behind him. Jen was not taking no for an answer and said she would love it, if Patty went with her. Patty wasn't sure how she got talked into it and Paul even encouraged her. The two sisters discussed what Patty would wear. Everything she suggested, Jen rejected, even commenting that some were more suitable for a funeral that an evening clubbing. Jen then started offering her sister her own clothes. Patty was intrigued at how daring most of them were, but did agree on a bright red dress that she had to admit did fit her perfectly and wasn't as outrageous as most. Paul however was stunned to see his wife dressed in a very short dress that showed off her cleavage rather alarmingly.
"You cannot go out dressed, or rather undressed, like that. If you move, let alone dance you will show off your panties to the world. Talking of which, are you wearing any panties?"
It was Jen who answered.
"You can't wear granny pants with that dress. The compromise is a thong."
It was only then that Paul looked at his sister-in-law's outfit. The first thing that he noticed was the lack of bra and a sportingly low-cut front. Jen, like her sister, had smallish boobs but they were being displayed to full effect. Her dark nipples could just be made out through the thin material. Jen noticed Paul studying how her boobs were looking without a bra and smiled as she said,