Date: Sun, 16 Oct 2016 09:09:03 +0000 (UTC) From: duright Subject: The Education of Marne The Education of Marne My name is Michael but everybody calls me Mike. I have a twin sister named Marne. We are 13 and have always been close and best of friends. We live in a suburb near a large city in Tennessee. Both my parents work and commute to the city on weekdays. Marne and I walk to school a few blocks from our house. We get home around 3:30 and our parents get home near 6:00. Marne and I have plenty of time to get any chores or homework done during that time. We have always been close and did things together. Neither of us had best friends that we hung out with. Most of the time we did things together. Neither of us were bashful around each other and had both seen each other naked or in various stages of undress. Shorts and T shirts were the most common clothes worn around the house. We are similar in height at 5' 6" and of average build. The last year or so Marne has begun to change to a more womanly appearance. Her breasts are noticeable now and A cup is my guess. She has nipples that get hard when she is cold and often at other times too but I did not know why. Her crotch has very light brown thin hair covering the area around her vagina. I have a 5" cock that is thin with some hair growing near the base of the shaft. I have been masturbating for over a year now and produce semen. Marne has never seen me masturbate but has seen me when I have been hard so she knows what I look like with an erection. I had not realized it till now but she has never commented about my cock, just glanced at it in a matter of fact way. I get out of School close to the street and have to wait for Marne who comes out a different entrance. One day she seemed particularly excited and happy about something. She said we should hurry home as she wanted to discuss something. All the way home I could tell she was worked up about something. When we got home she told me to put my stuff away, change clothes and come to her room. When I got there she was sitting cross legged on her bed with a big smile on her face. I asked what the big deal was and she said "I learned about sex today". Much more than the basics that Mom told me about. We actually discussed the male and female body and the sexual parts of each. It was very detailed and we were allowed to ask questions. At the end of the class the teacher showed us (all girls) a movie where a man and women actually had sex. It showed him putting his penis in her vagina and thrusting in and out of her. She said she got very wet and tingly in her vagina. She had a hard time not rubbing herself. I asked if she could see everything and she said yes. I was growing quite hard by this time and Marne noticed the bulge in my shorts. She said I want to have sex with you. I was shocked and could not say anything at first then blurted out that we are brother and sister. We are not supposed to do things like that. Marne said she did not care and it would not hurt anything. She really wanted to know what it felt like to have a penis inside her. She said it was safe to do it as she just finished her period 2 days ago. I did not know what to say but deep down I knew that I wanted to do it too. I asked her what if Mom and Dad found out. She said they won't. I just sat there staring at her and she said please, let's do it. She pulled her T shirt off and I saw that her nipples were very hard and stuck out from her small tits. She raised her butt enough to slide her shorts off. She wore no underwear so was now naked. She lay back on the bed, spread her legs wide and said "come on Mike, please". I was as if in a trance as I stood up and dropped my shorts and boxers off. My cock was hard as a rock and stood up stiffly against my stomach. I pulled my T off and approached the bed. I looked down at Marne and loved what I saw. Her open legs revealed her vaginal slit to me. The lips were slightly parted and looked moist. My breathing was rapid and I was both excited and nervous. I knew what it felt like to cum and I wanted to cum in Marne. I just was not totally sure how to proceed. Marne raised her hips up and said hurry up, I want to feel you inside of me. I asked what about your cherry? She told me her hymen had been ruptured when she was younger. Her doctor had mentioned it to her mother and surmised it may have happened during some gymnastic routines or other strenuous activity. I got onto the bed on my knees and duck walked till I was between Marne's legs. She had a huge smile on her face and said "I can't wait". I inched closer to her and she reached out and grasped my cock. I really jumped at that. Marne was the first person to touch my cock since I was a baby. Her hand on me felt wonderful. Marne guided my cockhead to her opening and moved the head up and down her slit. I could feel the slickness from her moisture on my cockhead. I was excited beyond belief and wanted to shove it into her. I started to thrust as Marne positioned the head at her opening. It did not just slide in. There was a tightness that I had to push through and with some steady pressure the head of my dick popped inside of her. We both stopped moving and were still. Marne whispered "you are inside of me" and I said "I know". She slowly raised her hips up and forced a little more of my shaft into her. I thrust in very slowly until my crotch was touching hers. We were hair to hair. This was the most wonderful feeling I had ever had in my young life. She was warm and smooth inside and her sheath gripped my cock. I began to thrust slowly in and out of her. We both made lots of little moans, groans, ahs, etc. as I moved in and out of her. My thought was that nothing in life could feel better than having my cock in a vagina. I knew what an ejaculation felt like and all too soon I knew I was about to cum. I told Marne that I was going to cum and she said ok. I finally could not hold it any longer and with a huge grunt I thrust hard into her and released my semen. It felt like a truck went out of the end of my dick. I know I shot at least 5 or 6 times into Marne. She could feel me cuming from my body actions. I doubt she actually felt the spurts of semen hitting her inside. I lay there quietly with my rigid cock fully inside Marne. She gave out a contented sigh and thanked me for fucking her (her term). She said it was wonderful, better than anything she had ever done. It was not long and she raised her hips into me and started to thrust herself onto my cock. I had stayed hard and began to fuck her again. We lasted quite a bit longer the second time but all too soon I was cuming inside Marne again. This time after we rested still joined I finally pulled out of her. There was a little pop when the head came out of her pussy (our new word). I looked down at her crotch. The whole area was wet and shiny from both my cum and her juices. Her thin hair was matted down and cum was leaking out the bottom of her crease. I was mesmerized by the sight of her newly used pussy, all wet, reddish with swollen lips gaping open a bit. What a beautiful sight! Marne came to my bed during the night and had me do her again. She loved the feel of a cock in her and I sure was not going to complain. Marne and I fucked once or twice a day for the next few days. My shaft was starting to get a bit tender from all the action. On Friday afternoon we were once again on Marne's bed and I had just came in her and we were getting our breath when I heard my Dad say "I thought this was going on". I froze, scared to death. I thought oh my God, now what. Under me I felt Marne tense up and gasp. I got up off of her and looked at my Dad from a kneeling position on the bed. He was undoing his belt. I could see a huge bulge in his pants. He dropped the pants & stepped out of them, next he stripped off his shirt. Clad only in his boxers he stood there a moment and then pushed them down. His cock looked huge compared to mine. It stuck out from his body at an angle, not up like mine. He was thick and a large vein showed along it. He slowly approached the bed and I backed up and got off the bed. He looked down at Marne laying there with her eyes wide and legs still open showing her wet pussy. Some of my cum was leaking down to her butthole. My Dad looked at her and said "if you like cock you will love this" and he got on the bed. Marne stared at him as he got between her legs and pointed the big head of his cock at her wet hole. She gasped as he started into her. I went to stand at the foot of the bed so I could see his cock going into Marne. He went slow but soon had all of his cock in her and his balls resting on the cheeks of her ass. They fucked slowly and I watched the big head of his cock drag my semen out of Marne's cunt. His shaft was very shiny from both my cum and Marne's. He filled her completely, her pussy lips wrapped tightly around his shaft and caressing as it went in and out of her. Marne let out little gasps and moans as Dad fucked her. I knew he was hitting her in places that I had not touched and she liked it. Finally Dad moaned a little and said he was going to cum. He thrust hard into Marne, his balls sucked up tight to his shaft and I watched as he flexed and twitched and I knew he was pumping his adult semen into Marne. Since that day both Dad and I have continued to fuck Marne on a regular basis. Mom knows and has her on the pill. When I was 14 and a half my Mom came to my room one night. Took her robe off and got into my bed naked. We did not say a word as I mounted her.