I went to home that day and watched porn keeping full sound in my bathroom. Her bedroom is adjacent to my bathroom. Next day she asked what was that s...und. I said nothing. But she knew what that was. That day I decided to fuck her someday. I was enjoying her beauty in clinic everyday and masturbating in night.She used to drop me home back in night as she was adjacent to me. One day she told she is giving me treat. I told ok without asking why she is giving treat. One day she was wearing tight. Just then someone came into the park, what a relief we were dressed but we felt so naughty and ran swiftly back to the car. Once we got in the car I suggested to Granny "Shall we be daring, lets take our trousers and underwear off for the drive home and give each a little play now and again", "Yes Son" she said. Quickly undoing her bottom half and then watching me do the same, she held my cock as we drove away and I then began to put my fingers inside of her. We finally reached her home, she. She asked what I was going to do with my spare time and I replied I was not sure? She said she was off in a few minutes and did I have time for some coffee and I told her I did.I met her next door at the local coffee shop and we sat and discussed the weather etc.She asked me if I would like to know what the words tattooed on her neck meant and I said that I did. She said it was Mistress and she was into bondage. I told her I was too and had often hoped to find a real Mistress to put me under. I run down the stairs yell "BYE DAD" not getting a reply, how typical.. Whatever. My mom is already out of the car to greet me with one of her homemade sweet hugs. As I eye her I notice that she has on a medium black skirt, tight fitting, with a tight black sweater layered with a white undershirt. Perfect for her perfect curves. But the first thing that comes out of my mouth is "Aren't you hot" She replies "A little but I have to dress to impress at work, beauty is pain" with a little giggle.