My mother in law (MIL), Amy moved in with me and my wife about a year ago. I am 45, my wife (Dana), is 40, and my MIL is 56. She moved in with us because her husband died and she had no where else to go. I wasn't very happy about it, but I couldn't say no. Amy is a very nice looking woman, she is petite with big titts and a really small round ass. She has always dressed nicely and wore stuff that showed off her body. Even though she is 56 she looks 40. People mistake her and my wife for sisters all the time.

Since she moved in, my wife has not wanted to have sex as much because she is always afraid that her mom might hear us. Well, I love sex and have to have it quite often. With us not fucking as much as usual, I started fantasizing about fucking my MIL. I started trying to think of ways to see her naked and let her see me naked. This didn't work out too well, she did see me naked a couple of times both times I had a raging hard on. The second time I made sure she could see my cock and her mouth opened a little, like she was in Aww of it. This made me want to try harder.

She is not very computer savvy and doesn't know how to clean out her browser's history or cashe, so she always asks me to do it for her.

A few months ago I was cleaning it out and saw a porn site in the history, I clicked on it to see what kind of porn she liked. The first video that I saw was an older woman sucking on a younger guy's cock. This got me thinking and I did a quick search and found a video of a mother in law fucking her son in law and put a link to this on her favorites bar. I didn't say anything about it and gave her computer back to her.

A couple of months go by and she tells me her computer is running slow again and asked if I would clean it out again, I took it and noticed the link I had put in her favorites was gone but there was another one in its place. It was of a MIL and SIL fucking like crazy and even with him fucking her up the ass.

I looked at it and was hard in an instant. I started looking through her history and it was full of porn, all different kinds, but mostly of MIL and SIL's fucking.

I finished cleaning out her computer and did a search and found a video of a MIL bringing the SIL breakfast in bed, then they start fucking and put that link on her favorites bar in place of the one she had.

I work 4/10s and my wife works 5/8s, so I have one day at home with my MIL that my wife is at work, so I was hoping my MIL would bring me breakfast in bed on the morning that my wife was working. A couple weeks after I gave her computer back to her, it happened.

After my wife had left for work I heard my MIL in the kitchen and in just a few minutes she came back to our room and came in wearing a really lose robe. She greeted me and said she had made me some breakfast as she sat it down on the bed.....I will finish this later.