Several years ago my grandma, Allison, had a stroke and was hospitalized for a short period. Not long afterword she sold her house and moved into an apartment complex for seniors that was connected to an assisted living facility. Over time, Allison became less and less aware of what was going on around her, and eventually she had to be moved into the assisted living section of the complex. In conjunction with her mental decline, most of the family slowly stopped visiting her. The main reason for this was that most of the family had moved out of town and/or out of state. The only family that still lives in the same city as my grandma is my 19 year old cousin and myself. I would make a point to visit her every other month or so to check up on her. Every time I visited she would be less and less aware and eventually was reduced to a silent stare most of the time.
It was a Sunday evening and the two of us were sitting on her bed watching TV. We were watching something on HBO. I got up to use the bathroom and when I came back the show had changed to one of those graphic sex documentaries. At first I thought that I should change the channel, but it didn't seem that it bothered my grandma at all, so I left it on. At least it was better than game showers or any of that other brainless crap that they have everyone there watch.
After fifteen minutes or so, I started to get a big hard on that made my pants bulge a lot. Soon after, during a particularly graphic scene involving swingers at some resort, I felt my grandmothers hand brushing against my leg. I didn't think anything of it at first because she would usually indiscriminately grab at things around her until I looked down and saw that her other hand was lightly rubbing at the crotch of her sweat pants. I was surprised and aroused to see her rubbing herself so I let her hand wander on my leg as I watched her. After a few moments she was rubbing and squeezing my seven inch cock through my pants. The scene was surreal. I was not only watching porno with my moms' mom, but she was basically jerking me off through my pants.
I decided that I was going to take this a step further. I got up, locked the door, and got fully naked except for my socks. I got some lotion from her bathroom and I sat back down next to her and guided her free hand back to my stiff member. She ran her fingers up and down my shaft and then gripped it at the base and lightly started to jerk me off dry. I squirted some lotion on my cock to get it nice and slippery for her to stroke. I noticed that as she started to stroke my cock faster and faster, she also started to rub at her cunt more vigorously. I decided that I shouldn't have all the fun and I reached down and undid her pants so she could access her hairy old pussy. As soon as I did this the pungent odor of her sex filled the room and I could hear how wet her fingers and cunt were.
After another ten minutes, her sweat pants were soaking wet and I could tell by her breathing that she was getting close to climax. Suddenly she began to moan and whimper, her legs went rigid and she squeezed my cock hard, making me shoot my cum load all over the floor and TV. We were both cumming at the same time; covering both of my grandmas little hands with hot, wet, cum.