I wouldn’t say that I’m obsessed with porn but I love to jerk off. Like most guys my age I am addicted to girls, but lack the charm and experience to get one in bed. At fifteen I have had a few girlfriends but never got farther than second base with any of them. This pent up sexual energy results in my rubbing one off every few hours. Once in the morning, again when I get home from school, a quickie before dinner and one before I go to bed. On the weekends I do it even more.

One day my mom tells me that her and dad are going on trip to see an old college friend out of town. I though this was great, then I could pop some dvds in the big screen in the living room and really go to town. That all ended when she then told me that grandma would come by to keep me company while they were away. She didn’t have to say it but I knew grandma was just coming by to babysit me. I sucked it up and put on a happy grin for my parents. They were going to leave Friday afternoon and wouldn’t be back until Monday night. This was going to be the longest weekend of my life.

Friday came and so did grandma. She was 72 years old. She had long blond hair (most likely not natural) and was in rather good health. She got on the whole exercise bandwagon a few years back. So she runs and swims and does a lot of cardio work. She came over and gave me a big hug, squeezing me close to her. I tried very hard to keep my groin out of this bear hug because I was in the middle of jacking off and was still a little hard. I tried not to let my dick touch grandma, but thinking about it jut made my dick even harder. What was worse was she wanted us to all sit together and talk before my parents had to leave. I spent a half hour adjusting in my seat so no one could see my erection, and listening to my boring parents talk.

They finally decided it was time to hit the road and leave. When they left I tried to sneak off to my room to finish the job I started, but was stopped. “Jake, I thought we could talk some more, you were very quite.”

I turned around and decided to wait it out a bit more, “Sure Grandma what do you want to talk about?”

“Anything, tell me about yourself, you’ve grown so much in the past few years.”

“well nothing has been really going on with me. You know mostly school and stuff like that.”

“What about girls, I’m sure a hansom stud like you has a line of girls just waiting to be with you.”

I couldn’t help but blush, this was the first time any woman has ever called me a stud, mind you it was my grandmother, but it still felt nice. “No, no girlfriend right now.”

She shook her head in disappointment, “What a shame.”
I tried to convince her that I had a huge book report I needed to start and went back to my room. I sat at my desk and looked at my computer. I opened the windows with the porn videos and pulled out my cock. I had an erection that was boiling for an hour with no relief. I started beating myself hard while I watched the college girls in the videos work for their tuition money. Just before I was about to blow my load I see the door open and I see grandma looking at my dick with shock. I don’t know why but I couldn’t stop myself. There I was looking at my grandma looking at my beating my dick and all I could do was keep going. Not only that but I came, and came hard. I felt the hot liquid hit my chin and chest before it subsided. When my dick stopped spouting cum my grandma turned around and walked out of my bedroom.

I was mortified I had no idea what to do next. I cleaned myself off and went down to see my grandma. She wasn’t in the living room or kitchen, I decided to check out the guest room to see if she was there. I didn’t know what I would do or say when I found her, but I knew I had to make sure she would not tell my parents about what she had seen. When I got to her door I could hear her breathing hard and panting. I though she was having a heart attack, I thought the sight of me cumming had actually killed my grandma.

I opened the door and saw my grandmother with her legs spread wide facing the door and she was masturbating. She was laying on the bed and had a huge dildo fucking her pussy while she rubbed her tits. Her back was arched and she couldn’t see me standing there watching the show. I could hear her panting and moaning as she rammed the dildo into her pussy. I even heard her call my name, “oh Jake…fuck me harder…yes Jake ram me with that cock.” Between seeing her fuck herself and her imagining it was me I got another hard on right there in the doorway.

As I stood there with my throbbing dick watching my grandmother ram a dildo into her and calling my name an idea came to me. I could either enjoy the show from afar, leave before I saw the climax, or join in the fun. I admit the idea of fucking my grandma sounds gross but when you’re in the moment it just felt right.

I bent down on my hands and knees and crawled into the room undetected. I got to the bed and stood up in between my grandma’s spread legs. I leaned forward put my hand on hers and started working the dildo. She jumped up and screamed in surprise. She also clamped me with her thighs causing our hands to be stuck on the dildo deep inside her. She tried to catch her breath, “Jake, what are you doing in here?”

“Well, I saw what you were doing and it looked like fun, so I thought I would join you.” I managed to push the dildo even further into her dripping pussy causing her to let out a gasp. Seeing as how she didn’t push me off or yell at me I figured she might want to go a bit farther. “So what made you so horny that you had to run off and fuck a dildo?”

“Jake this is really not an appropriate thing to talk about with me.”

“You didn’t answer my question. No matter, I can guess what got you all hot and wet.” I took my free hand and reached for hers, I put it right on the bulge in my pants to feel my iron love pole. “Is this what got you so horny. You did get to see it in action.” At this point I knew she was as good as mine. She was slowly massaging my dick through my pants, feeling every inch. “Is this what you wish that dildo was?”

She looked into my eyes and whispered, “Yes.” I played with the dildo a bit more as she kept feeling me up. Finally she unzipped my fly and took out my dick. She just stroked it for a while, enjoying the feeling of it in her hand, “My how you’ve grown. Now how about you stick that adult sized dick inside me and fuck my brains out?”

No sooner had she said it then I was taking the dildo out and getting in position. I put my rock hard cock at her dripping opening and just rubbed it around her lips. It felt incredible to rub my head all over her lips and clit. After I while she could not handle the teasing anymore, “For the love of god stop playing around and fuck me like a man.” I took that as part come on and part insult, which suited me fine, it made me a little angry that she insulted me and that just made me be a bit rougher with her.

“You want me to fuck you like a man?” Then I slammed my dick into her pussy to the hilt in one strong motion. She gave a little gasp. I spent no time waiting for her to get used to my dick inside her. When I was in I started fucking her hard and fast. I could hear the bed move on the floor by how hard I was thrusting. And the harder I thrust the harder she moaned. At first they were soft groans, then deep moans, and before long she was full out screaming, “Fuck Jake…Fuck that old pussy hard…oh god you’re going to split me in two…fuck me hard baby.” I have never heard my grandma say anything s offensive as bitch, so to hear her screaming for me to “fuck my fucking brains out with your monster fucking dick” was a new experience.

After ten minutes of that I pulled out, to her dismay, and told her to turn over. I wanted to fuck her doggie style. But first I gave a hard smack on the ass. “Am I fucking like a man now? Is this what you wanted you old whore?”
“Yes Jake, beat me like the whore I am just so long as you keep fucking me.”

That’s just what I did. She had two orgasms while I fucked her and her juices were dripping down my thighs. After a while I could feel my balls start to tingle and I knew I was going to cum soon. “I’m going to cum,” I screamed. “Cum deep inside me Jake. I want to feel you fill me up with your love juice.” After a few more hard strokes I came. And man did I cum. I could feel jet after jet of cum shoot from my dick and paint the side of my grandmother’s pussy. I kept thrusting throughout my climax and made her cum again. I was there thrusting, cuming and screaming for what seemed like hours.

Finally my orgasm subsided and I collapsed next to my grandma. She laid there next me running her hands over my body and massaging my deflating cock. We rested for a while before we went back to fucking. Let me tell you we spent the entire weekend fucking, resting, eating and fucking some more. I don’t know how many time we fucked, but we did it in every room and in every position imaginable. We even fucked in my parents’ room.

When Monday night rolled around we were thoroughly spent. When my parents came home they had no idea what we had been doing. We told them we watched TV and went to the park for some jogging. We even convinced my parents to let grandma stay over that night. So while my parents were in their room sleeping grandma and me were in my room trying like hell not scream too laud when she was riding me cowgirl style.

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