I had been married to Joyce for almost 10 years, and in the last few of these, we had begun to explore our sexuality, as well as that of others. When I first met her, and her family, things never went well between her mother and I, we never seemed to "click", and as such we had many run-ins. By the time we had been married for about 3 years, I was having one of my usual arguments with her mother, when I realised something strange. Her mother actually seemed to like arguing with me, and this had me wondering. Over the next few weeks I came to understand that I did not hate her, but that we had both been of a very like nature.
Whenever her mother would come for a visit, or we went to her place, it never took long before one of us began a disagreement with the other. It seemed that we both liked to get the other ones back up. Apart from our little fights, we both seemed to take great delight in playing practical jokes on each other. I would sometimes print up official looking documents and send them to her, sometimes they looked like Lawyers letters, where until she got to the end, she would believe they were real ones, with someone threatening to sue her.
On her part, she seemed to take things a little further. As I worked at nights, I never got to bed until around 4 am, and sometimes when she stayed over she would get up early and help do the housework. On one of these times I awoke around 7 am and heard the vacuum cleaner going outside the door. A few moments later the door would open and in would walk Grace (Joyce's mother), and she would start to clean our bedroom floor. I tried to tell her I had had little sleep and she should leave it, but she would not, saying it had to be done now or else Joyce would be angry. I gave up and hoped that she would not take long, and I could sleep once more.
She slowly cleaned all around the floors, under the bed and then took the nozzle off the end and proceeded to clean the dust from around the windows. She knew that Joyce kept the rooms very clean, and that this was her way of annoying me. When she finished, she came back to the side of the bed where she had dropped the brush to the cleaner, and as she bent down to retrieve it, she looked straight at the "tent pole" under the sheets in front of her. As was usual, I had a morning glory and had not remembered that it was summer and only a thin sheet was covering my naked body. I knew she had caught me out, and I waited for her warped mind to think of something sarcastic to say to me.
As she stood back up, instead of just leaving the room, she quickly ripped the sheet back, exposing my rigid cock, and shoved the cleaner pipe towards my cock. As I jumped to avoid having my member sucked up into the cleaner, she just laughed and asked was I scared of getting a good suck. She sure was a nasty bitch at times. Another time when she was in the house, I was having a shower when she banged on the door saying she needed the toilet. Calling back that I was in the shower, she said as long as I had the curtain closed, there was no problems for either of us.
Reluctantly I told her to go ahead, but first I made sure that the curtain was actually closed fully. I certainly did not need to see her sitting down having a piss after all, and did not want her starting another of her little jokes. A few moments later I heard the seat drop and soon followed a steady stream into the bowl. When I heard it subside, I suddenly had the forethought to move to the other end of the shower, for I knew she would not resist the pleasure of flushing the toilet, so as I would receive cold water. She was not going to have her fun this time, I thought.
I heard the lid close and she said that she would leave the flushing for me, she then thanked me for allowing her in and that she would now leave. I still did not trust her, so I stayed where I was. A second later the shower curtain was suddenly pulled wide open, and I was standing there in all my glory, and she was directly in front of me, staring at my half erect cock. I asked her what she thought she was doing, that I was married to her daughter who was in the other room. She just laughed and replied that she just wanted to see the cock that had taken control of her daughter. She then went back to her usual ways and said she could not understand what her daughter saw in a cock as small as mine. The bitch, I was not huge, but certainly not small, it was just her having her fun at my expense once more.
Little pranks like this popped up every few months, and as a result I began trying to think up the ultimate joke to play on her and to get even. My chance came later that year. Grace had come to stay for a few days. After supper Grace had gone for a bath, and then joined us in the lounge room where we were having a glass of wine. Grace was never able to hold her drink, so instead of giving her a small glass of wine, I gave her a large one, and every time she turned her head, I would top it up. It did not take long before she was light headed, and after a few more drinks, she was passed out on the lounge.
Joyce said it would be best to leave her mother where she was, so she got up and lifted her mother's legs so she was stretched out on the lounge. Joyce went back to her seat, which was next to where her mother's head was, and I had the other single seat near her feet. Grace was wearing a light cotton nightie that buttoned up the front, and as an older person (around 50) I knew that she would be like my mother etc., and have on a bra and pants underneath.
Joyce was feeling tired and said she was going to bed, but as I was used to going to bed in the early hours of the morning, I said I would be in to bed in about 4 hours time. Before she went I told her I had finally figured out a way to get even with her mum, but I needed her help first. My plan was to undo her buttons, remove her bra and panties with Joyce's help, and then when her mother started to wake in a few hours time, I was going to lie next to her and pretend to be asleep. My idea was to then tell her how much we (Grace and I) had enjoyed sex together. I knew that this would be the ultimate stir, and maybe that she would then stop doing it to me. Joyce told me I was an evil so and so, but agreed that our little jokes had gone too far, and this would stop her mother in future. She then went to bed.
About two hours later her mother began to stir, so I took off my shorts and gently lay down beside her. At first I just kept my head towards the TV and kept watching, knowing that it would still be at least half an hour before she was awake enough for my plan. As I lay there I felt her move slowly and before I could turn my head to check on her state, I could feel her large tits push into my back. Damn they felt nice. I turned my head and as I did Grace rolled back onto her back, but as she did she opened her legs wide, giving me a good clear view or her bushy cunt. I realised that if she were not my mother-in-law, and my wife was not in the other room, I probably would have been more than happy to fuck this woman for real.
When I felt her begin to stir fully from her sleep, I rolled over so as to face her, then put one arm across her so that my hand was on her furtherest tit, and then I raised my leg across her cunt. When my leg was in position I let my leg drop onto her cunt and quickly closed my eyes and pretended to be sound asleep. As expected, she jumped with a fright and tried to make out where she was, and whom she was with. I raised my other hand to my face and pretended to rub the sleep from my eyes, before finally I looked directly into her eyes and just said: