Years ago, when my wife was still interested in having sex but she didn't masturbate to my knowledge, I woke up one night because the bed was jiggling. I lay there in the darkness wondering what the heck was happening until I realized that my wife was masturbating. I had never know her to do this before. I didn't make a move or a sound but I just lay there taking it all in. I was fascinated. Was she too embarrased to tell me that she jerked off?
Eventally, without any noise from her, the bed stopped jiggling and I assumed that she had come. It was dead quiet and surreal. I didn't let on that I knew what had happened. I never said a word the next morning. I lay there in the dark with an erection and I fingered myself where the head of my 6" cock meets the shaft. I massaged gently by twirling my index finger and finally came in a massive explosion in a paper towel that I keep under my pillow for night-time ejaculations. She had no idea that I just came.
This happened many times over the next few years and I never let on that I knew she was masturbating in the dark. I would always be fingering my erection wating for the bed to stop jiggling and then I would have a massive come myself.
Years later, when I tried to start a converastion of why our sex life had been reduced to zero, I final mentioned that I used to catch her masturbating in the night. She denied it and said that she didn't remember doing that at all. I said that we both knew that wasn't true. She still wouldn't admit it.
If she had talked about it I would have asked how she did it. Did she just rub her clit? Did she finger her cunt? Did she sniff and taste her fingers as I did when I was allowed to finger her? But, it's all still a mystery and she doesn't do it anymore. I still jerk off in front of her but she's not interested in masturbating for me. She only ever did that once and I'll tell that story another time.