My mother in law (MIL) is 78 years old and has been living with us for 12 months. She is a good old girl who helps around the house and really is a welcome member of the family.
My wife, whom I love dearly, has been going through the changes that all women must go through. As a result, our sex life has slowed almost to a full stop. I get the occassional handjob, but they're very rare. Having said that, my wife and I are still close and deeply in love.
To relieve the pressure I have been masturbating. The best time for me to do this is early on a Saturday morning. My wife sleeps late and my MIL stays in bed reading. I get up early and go to the sitting room at the opposite end of the house to the bedrooms. There I can usually have a wank with no problems.
Yesterday (a Saturday) I made my way to the sitting room, got myself naked, got my porn mag and started to wank. Now, in my 34 years of marriage my wife has caught me masturbating once-it was very embarrassing and it upset my wife so much I have ensured it never happened again. But the embarrassment of being caught by my wife was nothing compared to that moment of sheer terror when I looked over the top of my magazine, cock in hand, and saw my MIL looking at me. The next few seconds was like something out of a B grade comedy as I tried to jump up and put my dressing gown back on and also hide the magazine and cover myself up. I fell twice, got tangled in the dressing gown, and ended up of the floor with my dick looking like the mast of a forlorn ship. I eventually covered up and muttered 'sorry' to the MIL.
To my surprise she told me not to worry about it as it was a natural thing to do considering my circumstances. I asked her what she meant and she told me she knew that her daughter and I were not having a lot of sex, and that her daughter was grateful I was playing with myself rather than seeking gratification with another woman. I told MIL I would never cheat on my wife, but I did miss the intimacy and closeness. MIL then sat down next to me on the couch and held my left hand in hers. She looked at me and told me to put my head on her shoulder and to finish what I had been doing. After a few refusals and a bit of urging I again slipped out of my dressing gown and my MIL was the first woman apart from my wife in 34 years to see my erect member. I slowly stroked myself as she watched and within 30 seconds I exploded all over myself and got some on her dressing gown. It was one of the most exciting things I have ever done! My MIL kissed my forehead and said my secret was safe with her. As she walked back to her room she said, 'I'll see you around the house, but keep next Saturday open for me to hold your hand'.