This happened a few years ago
About three years ago a friend needed some help laying a concrete patio. We got the job done and since it was a hundred miles away I was invited to sleep on the couch. We all had beer and ate and took showers and turned in for bed. I was on the couch in boxers and the only light was on was in the kitchen so it was kind of dim in the living room.
My friend's wife came down to put a few things away in the kitchen and then she came over and sat across from me in chair near the stair. The conversation went further along so I started to jack and get my dick hard. She didn't say anything and kept talking. Finally I shot my wad it shooting out just a little from my dick and she finally says, 'I better get to bed now.'
Feeling guilty I left in the morning and expected to get a call from my friend. A whole month goes by and no call. Then his wife calls to tell me that there was an event coming up that had something to do with their son. I just had to ask her if she was aware. This is what she said. 'It was really dim in there Mike but I was flattered to have seen what you were doing.' 'Did you tell John?' I said. 'No I didn't.' she says. 'Can we do it again?' I asked. She said, 'Yes!' But we never did.