Part two -- getting ready
I should probably explain a little more about the last couple of months and why I was wearing the chastity cage. We have always been quite kinky and adventurous when it came to sex, never afraid to try something new and had found a few things that we really enjoyed over the years. We had played a little with me being in charge, as Sabrina loved to be roughly taken during sex by a dominant man. However, she also loved being in control and having me as her little slave boy and that is what we did far more often.
A few months ago when we were out at a fetish event, we met another couple who we got chatting to and they explained how they had dabbled a bit with swinging in the past but the wife had attracted much more attention (understandable) and that had developed into a cuckold relationship. We were fascinated and invited them round for dinner the next week so they could explain more.
It turned out that the husband Frank has always been a little submissive anyway and really got off when watching Nadine play with other men. He also enjoyed it when Nadine recounted her experiences with her lovers and compared them to Frank and his slightly below average sized cock. They still went swinging occasionally but Frank mostly just watched rather than getting involved himself and they had a lot of fun with that.
I could see the excitement in my wife's eyes as Nadine explained the power she felt, being able to take lovers and have some great sex with well endowed "bulls" as she called them, while knowing Frank loved her dearly and would always be there to soothe her after her fun times.