(One of the men told me what it was like, so I wrote a story from his point of view. I hope you like it. Cindy)
*
I was in bed, but unable to drift off to sleep. The guestroom was lit with a ghostly pale light from the moon shining through sheer curtains. I could hear them moving and whispering in bed next door.
I had gone to bed about 15 minutes before they did, saying my goodnights while they puttered around the house closing up and shutting down things. She was touching him gently when he passed, and kissing his neck when she could. Her eyes were shining. I went to the guestroom that was mine, and decided to follow my usual practice of sleeping nude. No point in changing my habits just because I was visiting a friend. Long after I retired, as they were on their way to bed she stuck her head in the door to say goodnight, then I heard her entering the next door bedroom with him.
My friend's house was older, the walls were thin, and I realized that she hadn't shut either of the bedroom doors. Without really intending to, I listened as snaps were unsnapped, zippers were unzipped, and shoes fell to the floor. Their waterbed sloshed as they climbed in. Silence for a little bit, then the bed sloshed gently as they made themselves more comfortable. Soft murmurs, too soft to understand even though I tried, could be heard. She would whisper something and he would chuckle, then he would whisper and she would laugh. The bed sloshed slightly again, and their murmurs became more cooing and hums of approval and satisfaction.
Silence again.
Now a new sound. Intermittent. It wasn't until it had gotten louder and more passionate that I recognized it as them kissing. Now the bed was in gentle motion again. Hums and coos could be heard from time to time. They kissed for quite a while, with occasional murmurs or gasps. I imagined a hand or tongue was being slipped somewhere new. I gently squeezed my semi-turgid cock, and it throbbed harder. Suddenly he moaned, and his breathing deepened.
"Oh God, you are curling my toes" I heard him mutter. I wondered what she was doing. A few soft kissing sounds, then silence again until he again softly moaned. My cock was now rock hard. I squeezed it gently, not yet ready to stroke it.
"Oh sweetie, it drives me crazy when you suck my nipples." A soft popping sound, then a feminine whisper that she knew that.
The bed registered movement. For a second, no sound, then a sudden slurping sound followed by a deep groan from him. The rhythmic slurping continued, with him moaning in cadence. He gasped suddenly, and a second later she made a gagging sound.
"Sorry", she apologized, "I'm still fighting the reflex. But I'm learning!" He could only reply with gasps and encouraging noises.
The bed told me that someone had moved.
"Please fuck me," I heard her whisper. The bed sloshed.