We are both in our fifties and have tried most things in sex in our time together but we have never indulged much in mutual masturbation. I have always thought of it as a more private, solitary act.
Anyway, it was recently my husband's 52nd birthday. When I awoke that morning he was already lying awake. I wished him happy birthday and suggested we get up so I could get breakfast started and give him his present. However, he said 'Before doing that you could give me an extra present'. I kind of knew it was going to be something to do with sex seeing as we were both still in bed. I asked him what he had in mind.
His suggestion of an extra present, though, was not exactly what I expected. He pushed down the bed covers to reveal his hard erection already standing to attention. He told me he had been lying awake looking at my bare bottom while I was asleep on my side. He said he had been playing with himself until I awoke. I felt quite flattered that it had caused such a reaction. He then asked if I would turn my back on him again to show my bum as he was desperate to wank himself off. I found it a real turn on and immediately turned over for him. I even moved up the bed more so that my bottom was nearer to his face for a close up view.
By chance we have mirrored wardrobe doors in which I could see him frantically masturbating as he got his close up view, his hand moving rapidly up and down his cock. I had ony seen him touch his cock briefly before when we have sex but never actually masturbating. I thought it was fantastic. Then as he breathed heavily and gasped he held his cock steady. I thought he was just taking a rest. But at that same moment I saw his semen fly out from the end of his cock, he was cumming and there was loads. Most of it landing on my legs. When he was done he sighed a relief and thanked me for his present.
Actually, it was more of a mutual present. Since then we have masturbated together and have found it to be a great variation to having sex.