It all started a few years after we had moved into a new townhouse.
We had made friends with the neighbors that faced our backyard.
My wife, Jill and I were around the same age as our "backyard neighbours" Dan and Mary.
Dan had lost his job with the government the previous year and was literally pissing his severance package away on beer and smokes. He would drink to get drunk, stay drunk and ignore his wife and kids. He wasn't a mean drunk, just stupid and lazy...oh and flaccid. He couldn't get it up if he tried, and had no apparent desire too.
I knew all this because Mary and my wife were quite close.
Mary confided with my wife that she hadn't had sex in over 2 years at that point.
Mary & I had always flirted and I had always thought she had a bit of a thing for me.
I told my wife as much as and she always just passed it off as wishful thinking on my part. As a passing comment one day, my wife told Mary that: "Keith can be made available for you, if you want". To my wife's surprise, she asked if she could take her up on that offer!
Mary is about 5'2", petite with small pert breasts, black hair and a tight little butt. Jill is about 5'6", 36C breasts, blonde with a good figure.
I did not know of this arrangement at first, until one day in bed my wife blurted out the Mary wants to fuck me and it was ok with her, as long as we didn't sneak around behind her back and were open about it.
I think I got harder than ever and we had a real nice time that night.
In order to make it easier for us not to arouse suspicion with her deadbeat husband, Mary began spending more and more time with us and spent many evenings with us watching TV or me teaching her how to use different computer programs in order for her to get a decent job.
On the occasional weekend, she would stay over and sleep in our basement guestroom I had built.
One night, she came over with a big bucket of pre-mixed margaritas with the plan to get drunk and see what would happen. We started drinking and were having fun when one of us suggested we play a game...of course it was strip poker.
It short time, I was down to my boxers, Jiff was in bra and panties and Mary had lost all over her under clothes, but still kept her one piece jumpsuit on...which I thought was cheating.
As fate would have it, the next hand I lost and off went my boxers...Mary threw a pillow at me and told me to cover "it" up