It had been more than a month since that fateful night alone with Grandma. I had almost convinced myself that it had been a strange dream, but I knew deep down what the reality was. My 76 year old grandma was in the advanced stages of Alzheimer's disease and, about a month ago, while we were home alone overnight she had an episode. Her mind reverted into the past and she thought that she was with her teenage sweetheart before he shipped out to the war. We made love. I lost my virginity to my own grandma. I knew that I should feel ashamed and even revolted after such an act, but I found myself relishing the memory.
The feeling of her body pressed up against mine. For a woman in her seventies, she was in remarkable shape. The scent of her perfume had been driving me crazy this last month. Every time she walked past wearing it I was immediately taken back to that night. I found myself becoming aroused and thinking of her in the shower. But I also knew that I needed to put it out of my head. It was a one-time thing. A weird combination of coincidence and luck had put us together at a place and time that she was willing and insistent on having sex, but those circumstances were almost sure to never be repeated. I had to try to put the memory out of my mind and move on.
I had finally come to a place of determining to do just that when things took another unexpected turn. It was around midnight and I was unwinding after a long day. I was sitting on the couch in the living room, watching TV. Since the rest of the family, including grandma, were already in bed, I had the volume turned pretty low. With an ice cold coke and a bowl of chips, I was settled in for the night, when I heard my grandma's door open.
A moment later I heard the creak of the floor to my right and turned to see Grandma standing there. She was wearing her normal pale pink fleece robe, but as I turned to look, I saw her untie the robe's belt. She walked forward and as she did she slowly grasped each side of the robe and deliberately began to pull it open. When she stepped between me and the TV, she was holding the sides of the robe wide. She was not wearing anything else under the robe and I was once again face to face with my grandma's naked body. But while the last time it was dark, this was in the soft light of the side table lamp. I could see every detail with perfect clarity.
Her breasts were sagging, but full and heavy, with large, thick nipples protruding. She had a scattering of freckles across her upper chest that I had not noticed before. Her stomach was mostly flat with just a little extra pudge around the middle and on her hips. As I stared, my eyes slowly tracing down her body, she shrugged the robe off her shoulders and let it fall to the floor. She was now standing in front of me completely nude. She slowly moved each of her legs a small step to either side, parting her legs and drawing my attention once again to the massive hairy bush between her legs. It might have been a trick of the light, but it looked like it stood out from her body a good two to three inches. It was pure white, like her hair and stood out in bouncy curls casting shadows down each leg.
I didn't know what to do or what to say. I was absolutely stunned into silence. Part of my mind registered that I could hear the TV behind her and another part of me realized that my parents were asleep just down the hall. If I made any kind of commotion it might bring them running. What would happen then? Would Grandma recount to them the events of last month when we fucked in my bed. My mind was spinning as the many implications of this encounter began to spiral out in my imagination. But before I could formulate any kind of coherent plan, Grandma took things into her own hands. In two long strides, she crossed to the couch and before I could wrap my mind around what she was doing, she slid one leg on one side of my legs and then the the other leg until she was facing me, straddling my lap. She let her weight down and I felt her pelvis press against my hardening cock. I was only wearing some thin basketball shorts and the sensation of pressure on my lap instantly jump started my arousal.
I let out a low moan and looked up to see her curl her lips in a sensual smile and begin slowly rocking back and forth, grinding herself into me. It was too much, I reached out with both hands and cupped her ass, squeezing as I enjoyed the rhythmic rocking of her hips against mine. As this continued, she reached out and put her hand behind my head, gently pulled it forward as she lifted her right breast in her hand and placed her nipple to my mouth. Immediately, I opened my mouth and began to suck and gently bite the fleshy nub. I was rewarded with soft moans and grunts from Grandma. She was bearing down harder, pushing her pussy against my hard cock through my pants. I felt a sudden warmth spreading and realized her pussy was wet enough that it had soaked through my shorts.
I shifted my body slightly, just enough to reach down and slip out of the shorts and then my boxers. The soft fabric fell to the floor and I kicked it away absentmindedly as I fumbled with my cock. With one hand I reached down, feeling her long, meaty pussy lips. They were several inches long and now quite slippery from her juices. I pulled them apart and angled my cock toward her hole. As I continued to struggle to get it in, she reached down from behind and in one smooth motion, grasped my shaft and slid it inside her. The weight of her body pressed down until I was fully inside her, skin to skin. I could now feel the spongey, springy mass of her pubic hair squishing between us and she lifted herself up and then pressed back down.