After the night by the kitchen window I realized that Mary had a side I didn't know about. We always had very intense sex but never talked about things like that. I decided to push the subject to see how Mary would react.
A week or so later, after dinner one night, I had made a fire and we were sitting together on the sofa watching TV when I felt the mood was right. I said "Mary, was that the first time you watched our neighbors. Mary stiffened a bit but then relaxed and just looked down.
I repeated the question and she whispered "No, I'm ashamed to say it began about a month ago. I got up one night and noticing a light went to the window. I was surprised at what I saw and ran back to bed. You were sound asleep and soon I crept back to watch them coupling. In only a few minutes after pressing against the dishwasher I peaked. It was so intense that I fell to my knees trembling. Every night I kept watch, the night you caught me was the third time. John, I get visually aroused very easily. That's what happened with Conner."
I sensed there might be more and said, "My little Mary has been very naughty, are you sure that's all?"
I put my arm around her reaching under her robe and tickled her ribs. Mary shrieked and doubled over to avoid my fingers. Laughing Mary said, "Maybe a little bit." then struggling, managed, "Maybe more than a little bit."
She was in a zone now and I wanted this to continue. I moved my hand cupping her breast and kissed her neck whispering in her ear, "It was more than one month, wasn't it Honey?"
Mary relaxed in my arms and replied, "It was more like three and about twice a week usually Wednesdays and once or twice on the weekend. There were days you and I were out together so I missed once in a while but I watched every chance I got. John, I can't explain but I was drawn to it."
I was becoming aroused and suspected Mary wanted to say more but needed my help. "Was there more to it than what I saw? Please tell me."
"John, The second night it was a bit cooler and they had robes on but nothing else. They were in each other's arm kissing, at first on the lips, but then he was kissing her all over her face and neck and she was pressing her thighs against him. He slowly pressed her down onto a beach chair opening her robe then she spread he legs. He was on his knees. Oh John, I was sure what would happen next."
"Oh did you? Or were you hoping? Tell me Mary, were you touching yourself?" At this point I slid my hand down and cupped her.