Note: This story was dynamically reformatted for online reading convenience. Oops Written by Muffin Stuffer Copyright (C) 2010 by Muffin Stuffer, ALL Rights Reserved It began when she was 12 and I was having my 15th Birthday. Sue is my sister. Mom had said that I could have a Birthday party at our house with my friends. I played Little League baseball and now I'm on Junior Varsity. I am a utility infielder. I also have a 350 batting average. Ten of my best buds were over and dad was manning the grill while mom made potato salad, cole slaw and other food. Sue helped mom and was told to stay out of the way and not bother `the boys'. She is gorgeous and loving little girl. I love her dearly even though she is my sister. She is also curious, always has been. Mom and dad have always encouraged curiosity and ever since Sue was born I have been curious about girls. Oh I helped mom change her diapers, bathe her and hold her when she took a bottle. Mom breast fed both of us and would bottle her milk when she could so Sue could be fed when she wasn't home or not feeling well. I learned while holding her as she fed that if I talked softly almost a whisper and stroked her little legs she calmed and was less fussy. When Sue was about three mom felt I was responsible enough to let me stay with her in the tub when we bathed. She had her toys that she liked and she was always curious about my penis. I was just as curious about her little slit and it happened the first time when she was almost 4. I had been holding her like always in the tub and washing her chest and legs. She was all soapy. I had her sitting on my legs and my penis was soft. There was not enough water to cover my legs so she was out of the water. I was stroking her legs with my bare hands as I washed her when I began stroking her little slit. I guess it felt good to her because she spread her legs and though she was talky suddenly she got quiet. She also spread he legs wide over mine. I was little stroking down there when I discovered her other little hole. I played with it for a few minutes when she suddenly stiffened and seemed to stop breathing. It scared me. I stopped doing what I was doing. It was only a few seconds but she exhaled in a big sigh and raised her little hips to my hand. I knew I had discovered something wonderful. We continued to wash each other after that little interlude and everything was fine. We took baths together until she was about ten years old. I was starting through puberty and had begun growing hair around my penis. My penis also began growing and getting longer and thicker. My baseball buds and I took showers together and while some were like me others were still very small and bare. I was by far the biggest at that age. Often Sue would come into my room and I into hers to play or just be with each other. She was my best girl friend besides being a sister. It was not uncommon for us to see each other in all stages of dress or undress. She always showed me her new panties and modeled them for me. She modeled her first training bra too even letting me feel her little boobies, as she called them. Dad gave me the talk when I was eleven. He made sure I knew what my equipment was for beside peeing and told me to come to him if I needed to use protection with a girl. Mom also had a talk with me. She was cool. She had a video that was made for growing kids. One half was for boys and the other for girls. She showed me the girl's side and explained things while letting me ask questions. Now today is my birthday. I am 15 and it was a great party complete with a cookout and all my buds were there. They gave me lots of nice presents and I had a great time. Sue stayed away from me, why I don't know. Maybe mom told her to. She is always around me and I missed her this time. After everyone left and dad was cleaning the grill I was in my room listening to a CD that I had gotten. I had my headphones on when Sue came into my room. I didn't hear her or see her until she plopped on my bed with me. I jumped, who wouldn't when startled, as she then gave me a big hug and kiss. I quickly settled down as she handed me a card. It was a computer made card from her. It read: on the front was a baseball player and it read, To my best Brother. On the inside she wrote: "You are the best brother. I love you very much." Then she had put little hearts and x's for kisses. There was a small picture of her wearing her little red bikini that mom didn't want her wearing out in public. It showed me just how much she had grown. Her breasts were breasts now and there was a swell between her legs with her slit well defined. "Gosh sis you look great in the bikini." I said. She beamed with a smile. "Thanks Davy, I wore it just for the picture and got my friend to take the picture when we had a sleepover." Then she leaned into me and kissed me full on the lips. My penis got hard instantly with her kiss and the image of her almost naked in the bikini. The kissing went on for a few minutes as we expressed our love to each other. She then got up and said she would see me later and left. I put my headphones back on and listened to my CD thinking about what just happened. I also wondered what she meant by, `see you later.' I got my shower and put on my boxers that I sleep in and was in bed almost asleep. I keep my door open as does everyone in the house unless mom and dad want privacy. Sue came into my room. She was wearing one of my old tee shirts that she liked to sleep in. There was enough light that I could see she was naked under the shirt. She slipped into bed with me and snuggled up to me. My penis was now hard and sticking out of the fly hole. She saw it and lightly touched the head of it. My foreskin had slipped down leaving just the glistening head showing. "Ahhhhh" I moaned as she touched it. I reached out and touched her under her shirt and felt her soft, wet pussy. We were now calling our parts by the common names, pussy, cunt, cunny were her favorites as was penie, cock and dick for me. My nipples got hard just like hers do and she kissed them. She played with me and we kissed for a few minutes more before I got my finger in her cunny. She moaned as it made her feel so good. Long ago when she was 4, I think, I broke her hymen when we were in the tub. It became a regular thing for me to do with her. She loved it when I put my finger inside her pussy and wiggled it. Tonight was no different. She moaned and jerked as she got her cum then lay beside me. I had an arm under her and I just pulled her up to my chest and kissed her passionately. "I love you Sue." I said as I licked her lips with my tongue. She opened her mouth slightly and my tongue just slipped in so nicely. It was the most wonderful way to kiss for us both, we found out. My hands were all over her butt and delving into her pussy and anal opening. She whispered, "Davy, put your penis in me, please." It was so sweetly asked and I never gave it any more thought that she was my sister and we shouldn't go there or do that. I rolled her over and then helped her out of the tee shirt. I looked at her as she looked back. There was something in her eyes that said this was what she wanted. There was no turning back. It took a while but I soon had her legs elevated as my cock found her opening. I pushed in. "AHHHHHH" She moaned as I began to fill her. I pulled back as she was very tight. I pushed again and this time she yelped, "OWWWWWW....IT HURTS!!!!!" I was only about half in and she scared me with her little scream of pain. "I'm sorry Sue, I didn't mean to hurt you." I said lovingly, then kissed her tears and lips. It was only a minute when she relaxed and pushed up at me. My cock slid deeper into her until it couldn't go any more. We just lay there locked together with about 6 inches of penis inside her (now mine) pussy. We continued to kiss and make love to each other not moving but just being together. Mom, I guess, heard the scream of pain and got up to see what it was. She was at my doorway and saw us lovingly locked together coupled like lovers. I suppose it startled her as she watched Sue's legs come over mine and squeeze as we kissed and whispered to each other. My cock swelled and jerked uncontrollably as my sperm surged into her. I had masturbated and knew how forceful my spurts were. There was no way she didn't, couldn't, feel it. "Arrrrgh" I groaned as I experienced a pain and thrill I had never felt before. My groan was soft but my hips were now uncontrolled as I now fucked in and out of her. When I backstroked she grabbed my butt to keep me in and when I thrust she exhaled in a `whoosh' of air. We did this for several minutes before I couldn't keep it up anymore. I began to soften and then slipped back out of her. All she did was sigh and pound my back as she lost my hardness. We lay like that a long, long time. I didn't want to get off her and she didn't want me off of her. I heard soft steps on the hallway carpet. I did raise up to see what I might see. Nothing. I rolled off of her and we lay on our sides contented. The next morning we awoke in each other's arms. My cock was hard again and poking at her. She took it and guided in home. This time she fucked with me and it was only a short time that I blew another load of sperm into her welcoming pussy. We kissed all the time we were making love. And we were still kissing and licking lips when I slipped out. A few minutes later we heard mom calling us to "Get up. It's time for breakfast." We got up, put on our sleep clothes and went to the bathroom together then to breakfast. "Did you two sleep good last night?" Mom asked. "Sure did." Sue answered. "Yeah I feel great." I answered. "I bet." Mom said. Nothing more was said other than normal breakfast chatter. About a month later Sue told mom she hadn't got her period. Now we had been making love without protection ever since my birthday and now she says she missed her period? The only thing I remember was the last thing mom and dad had said long ago. Use protection with a girl. The End muffinstuffer@mrdouble.com