This actually happened and I can't forget it
It was a hot day in July when I arrived at a ladies bungalow to do some electrical work. I had done a few jobs for this lady in the past so I knew her fairly well. On this occasion I had to do some work in the loft which on a hot day was stifling. So I stripped down to my shorts to keep cool, the loft door was open which had steps going down to the ground floor. Being in the loft and being by myself on a hot day I decided that as no one could see me I would strip off naked to keep cool while I worked. This I did and soon I felt the urge to masturbate. So being at the far end of the loft away from the door I started to masturbate, I do love to do it. It was so exciting doing it in someone elses house especially as she was totally unaware of what I was doing.
After a while I closed my eyes imagining I was on a beach masturbating with girls not far away who might see me. Boy did it feel good. I soon forgot where I was and wanking like mad I eventualy came, lots of cum oozed out at which point I opened my eyes. To my horror the lady of the house had come into the loft and I hadn't heard her and saw me naked and masturbating and hadn't said a word. I froze and she said did you enjoy that because I did. I've made a cup of tea and if you want to stay naked feel free. We both came out of the loft and went into the lounge to drink the tea.
While I was drinking my cup she left the room and about five minutes later returned naked. I wasn't sure what was going to happen here as I didn't want to have sex or anything like that with her but seeing her naked was arousing me a bit.
She lay on the floor and said watch me and she started to masturbate in full view of me. After a while I was getting the urge to join her so I started masturbating as well. Boy was she enjoying it. We watched each other until we both came. Boy did I enjoy it. Over another cuppa in the nude we both chatted about masturbation and why we liked it so much. I eventually finished the job and still do jobs from time to time for her, and even go to her bungalow at times just to masturbate each other. I wiil never forget that day in July it was awesome. She also likes doing it in public, and took me one day to a lake where she did it while I took photos, but that's another story