I had WANTED to 'show' my wife my masturbation fun for many years. I finally did it recently.
Here I was, home alone with my wife again, both of us getting ready to go to work/school etc. We were both in the master bath/bedroom.
I had just taken a shower earlier, and my wife was IN the shower. I decided THIS is the morning I would show her.
See, I asked her many years ago if she would mutually masturbate with me, she said no. Not a good idea, her viewpoint only.
Just a month ago she mentioned her friend from work talking about her husband who didn't mind her working late hours (after work), she said he just jacks off. I asked my wife IF she's ever seen a guy masturbate. She said no.
In the bathroom, I stripped, and waited for my wife to finish showering. I was asked why I was nude when she saw me. I said 'I'm too hot'. It WAS the truth. She suspected nothing and said something about natives in Australia. I just smiled!
After she dressed, and was ironing a top on the bathroom counter, using it as an ironing board. I put a towel on the edge of the bathtub, stood there and lightly rubbed my scrotum and dong a bit. Still soft, but I thought, yeah, now's the time. I sat on the towel, and dropped on a few drops of lube and asked her 'will you watch me?.' She said 'watch you?' I never answered, well not verbally. I just started rubbing my hardening cock. Really quickly I was hard, and my wife looked at me a few times, acting like the ironing was more important. I put on three drops more lube, and came concisely and very strongly. I then got up, went in and wiped off all the cum, and washed myself in the sink. Not a word spoken.