We have friends two doors down and one evening, the wife, Vicki, cornered me in the kitchen and told me to make it less obvious looking at their seventeen-year-old twin girls. Oh, was I embarrassed. Then she said if I ever was tempted, I should let her 'take care of my urges.' Well, that was interesting so, when my wife was away, I gave her a call and she did just that, several times. And then she told me her husband had an 'arrangement' and that he knew we were having sex. So I talked with my wife and now we're swapping spouses. And our wives now have their own thing going, too. Wow.