Me [m] jerking off for my [f] grandma

This is another in a long line of flashing experiences I have had over my lifetime. I was visiting my grandma’s house and got crazy bored and of course a bit horny. I was sitting on a big chair across from her and was under a blanket, so I started to stroke my cock under the cover. Eventually I got hard and started full on jerking off under there, which she noticed. She looked at me quizzically and said “what are you doing over there?” Not sure what to do, I just kept on going mf told her I was cold and shaking lol. She said “why don’t you take a hot shower to warm up?” I agreed and she left to go start the water for me.

Anyone want to hear about me [M] flashing my mother in law?

I spent multiple years living with my wife and mother in law, I took the opportunity to flash often. My wife would even help me pull off over the top exhibitionist dream scenarios. If theres interest I can post the specific stories. Like the first time she saw it in person, or the time she walked in on a blowjob in progress from her own daughter. Or the time she let me give her a foot rub, and what happened after. Or maybe even the time she had a little wine and courage in her…

Like I said, if people want to hear more, I’m very happy to post