Having read all the comments on the first 3 chapters, I figured I should utilize the positive feedbacks into this chapter. As for the crude and non-constructive commentators (all anonymous, imagine that!) they get no consideration.
First of all, to the reviewer who was concerned that our children were in the house, unlike Europe, the house was more than 1800 sq. ft., with the master and children's bedrooms on opposite ends of the house. The exception was while we were overseas in government housing. However, my son was 9 months old and in his crib and not aware of activities.
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As we increased the size of our family to 3 kids, we were VERY discreet if we played at home. However, that was a rare occurrence, as I will explain later.
I was also asked to explore the emotional side of our lifestyle choices. And one questioned what happened with Bill the first time and the activities of the next day. Also how could I let Mona spend the whole night with him the first time? OK, easiest one first. Bill was my best friend and we worked together on a daily basis. He often spent the weekends at our house as an alternative to barracks life. In fact, he was one of several guys that would be welcome at our house. One Thanksgiving we had 9 for dinner. (Mona was an excellent cook. The guys chipped in to pay for the groceries) One Christmas we had 12 over for dinner.
My son had plenty of Uncles that played with him. When I was working a second shift stint, I would often get home at 12:30 AM and find a 4 person pinochle game in progress, someone listening to music on the headphones and 2 or 3 watching TV or VHS tapes (remember those). So Mona was very comfortable with Bill being around. She considered him her friend too. As for Ron, he wasn't there as much, but she thought he was SO good looking.
Prior to that first adventure (Chapter 1), we would discuss fantasies as pillow talk. Mona was rather inexperienced sexually when we got married. She wasn't a virgin the first time I slept with her, but she had only had one prior partner.
I think she felt cheated by not being able to date while in school, until her senior year. Her parents were too protective. So we would talk about how she would have liked to have dated more different people. She wondered how different guys would be like in bed.
Let's get one thing perfectly clear. Mona loved sex. At the time we got married, she was learning just how much. And she was interested in exploring her sexuality. She was one of those rare women who projected sensuousness without being overt in her behavior. I was often told over the years that she had "bedroom eyes". So it was with my encouragement that she began to consider acting on her fantasy. But as I said in Chapter 1, the series of events that first time were a surprise to me. But as I realized that she was serious, I got incredibly turned on by the idea.
As for the next day, it was a typical Saturday. We played with my son, ate, puttered around the house and cleaned. The only difference was that Mona and Bill would give each other an occasional hug and kiss. There was no awkwardness between Bill and me, since I had told both Ron and Bill while Mona was changing, that I wasn't sure what was going to happen next (actually I did) but that whatever happened, I was OK with it as long as it went no further than this house.
After we got in bed Saturday night, I got the Cliff Notes version of what had transpired in the bedroom. Ron was a disappointment since his Catholic Italian upbringing was in conflict with Mona's sexy presence. Even her manipulation of his cock barely got him enthused. However, when she finally got his cock into her hot wet cunt, he rose to the task. But he only lasted 2 or 3 minutes.