Cuckold's tale of being slave to femdom wife.

This is what happened to me many years ago. My ex found out that I had cheated on her with one of her friends. Little did I know that it was set up. I wanted to go to the local drive in, to see a string of biker movies, but the wife didn't want to go. She suggested that I take her friend instead. I should have known that something was up, but I was more interested in seeing the movies, and just never put things together at the time.
I had an old van at the time, with the floor padded, and carpeted. When the first movie was over, I asked if she would like something from the refreshment stand, and ended up going for ****** and popcorn.
When I came back she wasn't setting up front, so I found her laying in the back, relaxing. I gave her the popcorn, and *****, then made myself comfortable in the drivers side seat. After a while, she told me that she was cold, and invited me to join her in the back.
It didn't take long before we were lost in the throws of passion. Something I had always wanted to do, ever since I first met her.

It wasn't long after that, that my wife found out, and informed me that I was going to start doing things her way, or we would end up in divorce court. Not wanting to lose my home, or for that matter, my hard earned money, I agreed.
She said that I would be sorry I screwed around on her. She had an older sister, that had a very loose reputation, along with many boyfriends, and that she was going to start going out with her, at least once a week.
The first week went by pretty much uneventful, but things changed soon after. She came home after one of her nights out, wearing a skirt, and pulled her panties off, told me to close my eyes, and open my mouth. The next thing I knew, she was pushing the crotch of her cum soaked panties in my mouth, and telling me to suck all of her lover's cum out of them. I did so without complaint.
When she was satisfied that they were clean, she straddled my face, and told me to lick her clean, informing me that I was going to be cleaning her out on a regular basis.
This went on for about 5 or 6 weeks, 2 to 3 times a week. Then one weekend she came home with her sister. She informed me that she had told her sister about what I was doing after her dates, and her sister liked the idea, and was wondering what it was like. My wife told her to come home with her, and she would make me clean her out as well.
Needless to say, I kind of liked the idea, but I didn't want my wife to know. My Sister-in-law suggested that my wife should have her friend join in on the fun, so the next time they went out, her friend went with them. The three of them took turns straddling my face.