The house was starting to feel more and more crowded. My mom and dad had originally taken my grandma in and given her a place to live because, in her late 70s, she was not well enough to take care of herself on her own. Her body was actually in remarkably good condition for her age, but her mind had begun to slip. She had memory issues, mood swings, and she had begun to have episodes of reverting in her mind back to other periods of time. Sometimes she would think she was a young woman, freshly married to my grandfather. Other times it was during the war. This was disconcerting enough, but because of this, over the summer I had been pulled into a couple of a head spinning sexual encounters with Grandma.
On the one hand, I felt some measure of guilt. This was wrong. I should not be doing this. I didn't think I was taking advantage of her. She made it pretty clear that she thoroughly enjoyed grinding away on me, but the problem was that she thought I was her husband. In her mind, she was being a perfectly pure, faithful, and dutiful wife. And here I was, a horny 18 year old, having sex with my own grandma. And to be honest, I loved every second of it. I couldn't stop thinking about it. Her breasts, her long, thick nipples. Her hot, wet, silky smooth pussy. Her amazing mouth and tongue.
The only thing that had given me pause was at the very end of our last encounter. I assumed that she was in one of her "moods" and she thought I was grandpa. But as she kissed me goodnight, she called me "Edward". That is my dad's name. That is her own son's name. I spent a lot of time considering that from all angles. What did it mean? Was she having a fantasy about having sex with her own son? I couldn't bring myself to believe that of my sweet grandma. Regardless of the fact that she was literally sleeping with me, her grandson. I ended up trying to push that out of my mind and considered it a fluke.
I laid in bed every night for the last week, masturbating while thinking of her. Wondering when her next "episode" might come and I might have another chance to be with her. Wondering if maybe this thing that we had had finally come to an end. I had just begun having sex. I didn't want it to be over so soon.
The next night was Friday. My parents were out on a date and it was just me and grandma. I planned a little movie night for us. I set the mood with an old 1950s classic black and white movie that I knew was one of grandpa's favorites. I ordered us some burgers and strawberry milkshakes. I wore a pair of jeans and a white undershirt, and put enough gel in my hair to slick it back, in my best "1950s' guy" look. I even took a chance and risked sneaking a spray of grandpa's cologne. Then we sat side by side. I waited. And waited. At one point, I put my arm around her. She just looked over at me, smiled, and patted me on the knee. It didn't land.
I lost all hope when I heard the back door open and my parents came in early from the date night. Oh well. I figured I had given it a good try. My mom stepped into the living room and saw me and grandma sitting side by side, watching the old move. Out of the corner of my eye, I could see her watching us for a long moment before she commented.
"Hi, you two!" she said, "enjoying the movie?"
We both nodded, distractedly, and continued watching. Mom walked closer and stood over my shoulder.
"Look at you," she said, "You're all dolled up with the hair and the shirt."
She was smirking, but I was pretty sure she was just messing around and didn't actually suspect anything. Until...
"You're not trying to put the moves on grandma, are you?" She said playfully.
I was forced to laugh, but I could feel the blood rushing to my cheeks and knew if the light was any brighter, she would have noticed me blushing. Luckily, she did not notice and in another minute or so she walked off. I let out a breath I hadn't realized that I had been holding and slowly slipped my arm from around grandma's shoulders. After another few minutes both my mom and dad came walking in, now in their pajamas. They flopped down on the couch next to us and we proceeded to watch the rest of the movie together.
Now that I was pretty sure I wasn't going to have sex, I was really bored with the movie and realized I was pretty tired. I decided to cut my losses. Nothing could be less sexy that watching an old movie with your parents. I announced that I was beat and going to head for bed. Then I stood up and stretched. I walked over to my mom and then dad, saying goodnight and giving them the obligatory side-hug. Then I turned back to grandma.
"Goodnight, Grandma!" I said and held my arms out.
"Goodnight sweetie," she said, holding her own arms open, inviting.
I leaned in and we embraced. Then, just as I was pulling away, she pulled me back slightly. This caught my attention and I looked up sharply. Our faces were mere inches away. Faster than I was expecting, she closed the gap and flicked her tongue out. My mouth was partially open. Her tongue touched my bottom lip, then slipped inside my open mouth, brushing my teeth and then finally my upper lip. It had all happened so fast. I was caught off guard, but instantly fully aroused. Before I could say anything and before the moment stretched into an awkwardness that would draw my parents attention she leaned in again and said.
"I'm wet! I want you inside me again, Bobby!"
I couldn't believe my ears. She used my name, which meant she knew I wasn't my grandpa. She was in her right mind and was talking dirty to me. She said she wanted me inside her "again", which meant that she knew we had been together. My head was swimming, but I simply nodded, stood up and continued out of the room. After walking into my room, I turned and collapsed onto my bed. My cock was now hard and throbbing and I was breathing heavy already.
My grandma knew that we had had sex. At least one of the times we had been together she wasn't under any delusion about who I was. I felt a stab of guilt, but then the dawning realization that if she knew and she was into it, maybe this could happen more often that I was used to. I didn't have to wait for her to be in some sort of mind-altered state. I just needed to wait for my parents to go to bed. I decided that I would wait until the coast was clear, then make my move.
As I lay back on the bed, still tasting grandma's wet tongue on my lips, I reached down and began to touch my cock. It was already hard and as pulled it free of my boxer shorts and slowly began to stroke it, I closed my eyes and fantasized about putting it back into my grandma. It wasn't long before I made myself cum. It took the edge off, but I was still counting the seconds until my parents went upstairs to their room and I would be able to slip down the hall to Grandma's room.
In the end, I decided to take a hot shower. It would kill some time plus it would be nice to freshen up a bit before things got started in the bedroom. I took my time and actually did a little "manscaping", nothing drastic, just a little trim of the pubic hair. I stood, admiring my body in the mirror. I thought that the shorter, cropped hair made my cock look a bit bigger. Then I put on some body lotion. Arms, legs, chest. I don't know if this would make me any more attractive, but I was enjoying getting ready. Finally, I slapped some fresh deodorant and sprayed myself with some cologne. Satisfied that I looked and smelled as good as it was going to get, I wrapped myself in a towel and walked back to my bedroom.
The first thing I noticed as I opened the bathroom door and walked back to my room, was that the lights were off and the house seemed quiet. I stepped into the TV room, still wearing a towel. I stopped and stayed still, listening for any movements. Nothing. My parents must have finally gone to bed. I silently pumped my fist in the air, turned and continued into my bedroom. I dropped the towel on the edge of the bed and quickly threw on some clothes. I rummaged through my dresser drawer looking for the right...I found them, my one and only pair of silk boxer shorts, then I put on an old, used t-shirt that was faded and soft and smelled like freshly cleaned laundry.
With one last deep break, I opened the door. The house was still quiet, but I didn't want to take any chances. I slid my door open inch my inch, then stepped out. Placing one foot ahead of the next and stepping lightly, I quickly crossed the room and before I knew it I was standing at my grandma's door with my hand on the handle. But that is when I heard it. Slight sounds from inside. Muffled voices. Grandma was whispering. Someone else was in there too. I stood, frozen in place, not knowing what to do. Turn back, keep listening, go in? The moment stretched on. I could still hear the voices. They were engaged in some whispered conversation, but I couldn't make out the words. Then, my grandma laughed and I jumped at the much louder sound.
