My girlfriend and I have been together for several years now, and our time together has been wonderful. In bed, too. As a prelude to sex we would often tell each other sexy fantasies. In Jacky's case, these fantasies often involved seducing my best friend John, or her ex-boyfriend Eric. Both are dark, hairy, and muscularly built men (I'm the tall and skinny type). In these bedtime stories, it was often my role to just sit and watch, while she would have sex with John (or Eric). These stories turned me on as much as her and we would be fucking like crazy before they were even finished!
I kept thinking about these scenarios even at other times, and many a morning after she had left for work (an hour before I did) I turned around in bed and masturbated, picturing my lovely girlfriend having hot sex with my best friend. I confessed this fantasy to her in a conversation during a Saturday afternoon spent drinking in the bar. To my surprise, she told me she had been thinking a lot about this too, and had in fact devised a plan to do something that excited the hell out of her but was still fairly innocent. When she told me, I became hard as rock. I kissed her and told her this was all right with me and she should go ahead with it.
The next weekend, John was in town. As usual on such occasions, I cooked dinner for the three of us and later we all went to the bar. After closing hours, the three of us would have a final whiskey and chat some more. Jacky would always bring a large jug of water on such occasions to prevent a bad hangover in the morning. On this occasion we only had one drink, but Jacky kept refilling John's water glass. Engrossed as he was in the conversation, he didn't even notice and drank all of the water. Then Jacky announced she was going to bed, and both John I decided to do so as well. Now, it so happens that our bedroom is immediately opposite the bathroom, while the guest bedroom is next to ours. We had only been in bed for an hour or so, when we heard John heading to the bathroom. The water had obviously worked. When Jacky heard him flush the toilet, she slipped out of bed and "happened" to meet John in the hallway. She was wearing a tight black nightie, which is so short that her underwear could be seen and tight enough to show off her large 38DD breasts and in this case, the outline of her hard nipples.
"Oh, hi!" said John, obviously unaware of what was to come.
"Hey", Jacky said huskily, walking up to him and stopping only when she was unusually close to him.
"Listen, Ron is sound asleep" (this was a lie, I was awake, and watching them through the keyhole of the bedroom door!).
"This may be a good time to do something I've always wanted to do".
John looked surprised, as she folded her arms around his big strong body and kissed him intensely, her tongue finding his. This kiss seemed to go on for hours; and it was obvious that John's initial complete surprise was soon replaced by something else, as his hands found her back, then her bottom. He pulled her firmly against her, squeezing her buttocks with one hand, the other hand finding her breasts. Jacky was enjoying every minute of this, as was obvious from her groans and movements, pulling herself even closer to this big strong guy. But then John gently broke off the embrace.
"Look", he said "Right now I would really like to take you back to my bedroom and make love to you all night. But Ron's my best friend and you're his girlfriend so we should both be loyal to him".