Note: This story was dynamically reformatted for online reading convenience. "I'm super excited James!" Cara exclaimed. She had finally got her way and I had given in and told her that we could go out on a date together. Of course it would have to be ambiguous like a movie or something I told her. Either way she was getting a wet spot in her panties just thinking about it. I guess her wildest dreams were coming true, and I guess I was happy to make her dreams come true. Of course this was my dream too. Not a month earlier I was jacking off in the pool changing room thinking about her. Now we were fucking on a regular basis and getting ready to "out" ourselves on a date, in public nonetheless. I was kind of scared too. I'm sure some of our friends would see us out together. I mean the theater was a very public place and the summer blockbusters were still running at the theater in town. I had just last week gone to see The Dark knight Rises with Jason, one of my best friends. Cara asked, "Can I hold your hand at the movies James?" I exclaimed, "No! Are you trying to get my ass kicked at school Cara?" "Well no James, but it would be nice." she explained. "I know but the world isnt ready for us Cara." I rebuked. Her cute little face and sultry body sure made telling her no a hard thing to do. This conversation happening on the way home from school in fact was an intense one. She had been begging for an actual date forever and I still couldn't believe that I had said ok. Her super tanned glistening legs sitting next to me in the seat made me want to just rip her clothes off when we got home. She had went for the little Japanese schoolgirl look today at school. Dark pleated skirt and a little tight button up top made my cock rage in my pants. Myself I just had on some khaki pants and a button up multi colored shirt. My hand me down station wagon wasn't a chick magnet but it's bench style front seat made it easier for Cara to scoot up next to me in the seat. The cloth caused friction when she scooted and when she touched my arm so slightly she shocked me back to reality from thinking about her and those legs. Our conversation continued most of the way home and then she got a great idea. It was like a light literally came on above her head. She turned her head to me and placed her hand on my thigh and squeezed. "I have a great idea James." "What is that Cara?" I asked. "We can go to the theater in Shady Grove. It's like twenty miles away and neither one of us know anybody there. We could act like a real couple there and no one would know." She excitedly explained. "That's actually not a bad idea Cara. you know I love you, right?" i asked. "Well of course James, I wouldn't be giving you my twat if I didn't know you did." She told me. "Please don't use that word, you know I hate it." I said. "What word?" She said already knowing the answer. "Twat!" I hate the sound of it and you know it." I exclaimed. "I know that's why I ask, to make you have to say it. I'm sorry." She pouted. She literally turned and did that whole pouty face towards me and I just had to laugh. I loved that she could just be silly with me. That was one reason why I liked being in a relationship with my sister. We knew each other so well of course. Hell we had been taking baths together since we were babies. Of course then mom and dad actually knew about it. If they knew our escapades now I don't think they would be the least bit happy. We pulled in the drive at home and Cara got out and ran up the stairs to change. I went to the kitchen to get a snack before supper. Cara came back down in some little coochie cutter blue jean shorts and a white t shirt with no bra on. Her nipples were poking through and now was my hard on through my khakis. I decided to run and change. I went upstairs to my room and pulled my pants down and pulled my shirt over my head. I hated taking the time to unbutton. Just too tedious of a process for me. I looked at myself in my full body mirror and admired my own form. Yes I have a little bit of narcissism in me. I admired my pecs that I had been working on to tone up and my abs that the hundred situps were tightening each morning before school. Of course I was particularly proud of the "happy trail" that led to my eight inch cock. I was horny as hell. So I started to touch myself in the mirror and took my cock in my hand and made a few long strokes to my shaft. It sprung to attention in no time so I furiously stroked it faster and faster making my head turn a royal purple color. It engorged, filling with blood and my head was getting woosey. Oh I loved the high you get when you're getting off. Of course I was thinking of Cara as i stroked my shaft. She apparently thought I was taking too long to come back downstairs so she decided to see what was taking so long. I could feel her presence at my bedroom door, staring. Then all of a sudden she decided that she needed to give me something to look at while I masturbated. She pushed the door open and stepped up to the side of the mirror. "James." She said. "Here ya go." She started to slowly undress beside the mirror. She pulled her shirt over the top of her head. Her breasts were picked up lightly with the material of her shirt and then quickly revealed to me as her shirt came up over her hard nipples standing at attention begging to be sucked on. Next she grabbed the waistband of her shorts and undid the button that held them up over her firm ass. She put her thumbs in her shorts and then spun around and bent completely over at her waist and slowly revealed her cheeks and then down to her rosebud of an ass hole. There she stopped and turned to me, "Do you like what you see James?" I was enamored by her perfect little pink starfish of a butt hole. I couldn't make out any words but the expression made her have a huge grin. She loved to be looked at. She knew that she was hot and she liked to show it off. She didn't stop at her butt. She shimmied out of the shorts showing me the most perfect plump pussy lips from behind that a man has ever seen. Her outer lips were engorged with a dark redness and her inner lips glistened with the slippery pussy juice that seemed to be dripping out of her. She then proceeded to stroll to my bed and got up on all fours and bent her ass back towards me and motioned for me to come to her. I couldn't resist, I spanked her ass twice. With each smack my cock waved in the air. She was in the perfect position to fuck the hell out of my sister. I started to creep up to her waiting pussy and grabbed my dick to guide it in that wet slit. "Stop!" She yelled. "I want you to eat my asshole James, lick my butthole until my pussy creams. I was so horny I had no thought in my head now except to eat Cara's asshole. The little pink starfish was perfect. I took my tongue and took a long stroke from her pussy slit to past her asshole. It tasted good and smelled musky. It was a beautiful mix on my tongue. I took the tip of my tongue and made a firm tip and prodded at her asshole. It seemed to open slightly, I could feel her muscles contract on my tongue as I ate her asshole. As I ate her ass I took the thumb from my right hand and played with her clit which made her moan loudly. I dipped my middle finger in her dripping pussy and brought it out and wiped her love juice on to her hole and pressed down with that finger. Her asshole was relaxing even more now. I licked up her pussy juice that I just spread on her ass. I kept playing with her clit and dipping my finger in that hot pussy. After a couple minutes of this she shook and leaked out on to my bed a stream of cum from her pussy. I then drenched my entire right hand in her juices and wet her ass thoroughly. I pressed once again on her hole and slipped my middle finger in slightly. She moved her ass in satisfaction and I plunged it in deeper. I was now in there moving my finger back and forth up and down. I then got my thumb wet and dipped it in her hole. She was completely relaxed now and my thumb went in quite easily. I didn't need any lube here she was plenty soaked to get anything I wanted in there. And after I had ate my sister's asshole out I wanted my cock in that ass. It was tight but not impossible. I took my dick and made a few strokes in to her dripping wet pussy. My dick was soaked and wet and slippery. I rubbed my hand in her pussy again and rub it all over her asshole and then I pushed my cock up to her opening. I pushed a little and couldn't get in. My cock was going to be more of a challenge than my fingers of course. I slammed my cock back into her pussy again and then told her to relax as i was going to force my cock in her ass. It was slow at first but I realized I was going to have to force it in to do this. I spit down on my cock and pushed hard into her ass. She jumped a little as she squealed. "Oh that hurts and burns James." She whimpered. "Just go with it Cara it will begin to feel good in a minute just relax. Your ass feels awesome baby!" I told Cara with a huge smile. I slowly started to go in and out of her ass. She was getting more relaxed though and was starting to enjoy our little anal session. I could feel her tightness around my cock, milking it. I was about to cum when I was masturbating and I was about there again. I kept pumping her ass. I was getting into it and was getting faster and faster. She was now moaning in pleasure instead of pain. "I'm about to cum Cara." I pulled out of her asshole and slid my dick up in between her butt cheeks a few times and started spurting a huge load in her crack and then I pulled back a little and made sure I squirted directly on her asshole. I still felt like I had some more cum in me so I decided to ram my cock back in that now creamy asshole and cum inside of it. Almost as fast as I reentered my sister's ass I came again. I pulled out fast so I could see how big I made her ass gape. I could see my cum in her asshole for a second before her starfish closed back up. Cara got up off my bed and said, "I think you may need to wash your sheets, I came all over them James." She went over to the mirror grabbed her shorts and pulled them up quickly on her still cum covered ass and hole. She so hot and a freak. Now thats my sis.