Note: This story was dynamically reformatted for online reading convenience. Every year about this time, we made a last trip up to our cabin on Big Pines lake. My Dad, Mom, Sister and I. We left the house late and it was about a four hour drive to the lake, so it was going to be after dark when we got there. Mom and Dad in the front seat and me, and Mary Lynn in the back seat. So it wasn't to uncomfortable just a long trip. It had started getting dark and it looked like Mom had dozed off in the front seat, Dad had some soft music playing on the radio. Mary Lynn had moved over and was resting her head on my shoulder, as she appeared to be also dozing. I had seen her naked quite a few times as she had dashed from the bathroom to her room after a bath, but hadn't realized how much she had developed into a very good looking girl. Of course she was seventeen now and a year younger then me. I put my arm around her, as she snugged up against me. My hand was resting on one of her breasts and I could feel the out line of her nipple though the thin blouse she had on. I slowly moved my fingers, in a circulate motion. I could feel her nipple getting hard and a soft moan came from her lips, as she pressed her body tighter against mine. I slid down in the seat and laid back, so she could rest more comfortable on my lap. She moved over so her head was resting more in my lap and her hand had moved over onto my leg. Her fingers on my leg was sending a nasty message to my brain, that she was up to no good. Oh it felt good and my cock was beginning to become aware of her hand, which wasn't to far from it. I slowly unbuttoned her blouse and reached my hand onto her breast, so I could really fondle it, with my other hand I reached under her body and unfastened her bra. My hand was now free to be able to slip under her bra and fondle her nipple and breast. Her fingers were beginning to move up on my leg almost to my cock and It was getting very hard now, so she couldn't fail to realize that she had created a hard on. Her hands were now on my zipper and she slowly unzipped my pants and reaching in, her fingers quickly found my straining to get lose cock. She pulled it free from my pants and started rubbing up and down on it. In the meanwhile my hands had moved down inside here ski pants and was gently rubbing her cunt through her panties. She pushed her cunt against my fingers, and moaning a little, let me know, she liked what I was doing very much. I then pushed my hand inside of her pants and slid my finger down and rubbed her clit, was she wet. I slid my fingers into her cunt and slowly rubbing on her clit, while moving my fingers in and out of her cunt, she was wiggling all over my lap by then. She raised up and took my cock into her mouth and started sucking me off. Boy! talk about a good blow job, she was really giving me a great one. I could feel her climax, as I fingered her clit and about the same time I blew my load into her mouth, so she wasn't able to scream as she came to. It surprised me that she swallowed all of my cum, what a good cock sucker she was. She then raised up and pulled my head down and gave me a great big kiss running her tongue into my mouth and sucking my mouth at the same time. She whispered in my ear that I would have to do the real thing on her pussy, when we got to the cabin. We straighten our clothes up and regained our positions in the back seat as we arrived at the lake house. Dad woke up Mom, and then asked us if we were awake as we had arrived. We acted like we had just woke up, so no one had any idea of what a good time we had. I carried a load into the cabin, after Dad had unlocked it, and proceeded to get the wood stove lite, as everyone was busy getting our gear in. We had planned spending a week before school started, so had brought quite a bit of things as it was a fair drive to a store. It took about a hour to get unloaded. By then the cabin was nice and warm, as we had gotten a big supply of wood in the last time we were up here, so we wouldn't have to worry about that. Dad had fired up a gas light so there was plenty of light to see by. The cabin wasn't real big, but had a bedroom down stairs and a sleeping loft up stairs. A big room which was kitchen, front room, and dining room, with a big wood stove in it and huge windows overlooking Big Pines lake. The folks would sleep in the bedroom, downstairs and the loft was where Mary Lynn and I would sleep as there was two full sized beds up there. The gals had put fresh sheets and blankets on the beds and as it was close to midnight and Dad was tired after all the driving. After we had a bit to eat and had filled up the wood stove, we all headed for bed. As we didn't have any electric up at the cabin, we used flashlights and gas lanterns. We also had a solar collector on the roof that recharged our battries, but that wouldn't be used till next day, so we only had a flashlight to see to get to bed, after we had gotten up to the loft. Mary Lynn had the light and was shinning it on me, so I could see to get ready for bed. I undressed while she held the light on me. I stripped down to my shorts and they were bulging in the front. I asked her, if she wanted me to hold the light for her, so she could get ready for bed. She said it would be nice. We could hear the old man already snoring down stairs, so the folks were out for the night. I moved over to take the light from Mary Lynn and when I turned it on her, I was shocked, as she was completely naked. She spread back the sheets on her bed and reached and took my hand and pulled me over, then putting her arms around me gave me the best french kiss, I had every had, while running her hand down on to my fully enlarged cock. She said that she wanted fucked right now. My shorts were off in a instant, as I laid her onto the bed and slid in next to her, rubbing her tits and then running my hand down into her cunt, which by then was so wet, my fingers just slid right in. She had her arms around me, kissing and her tongue was everywhere, while her hands were storking my cock. I moved my body over onto of her, as she spread her legs and then reaching down to guide my throbing cock into her hot, wet cunt. She was sucking, as her tongue was all over the inside of my mouth. I never realized how good a kiss could be. Needless to say we both slept in the next morning as I fucked her twice more that night. What a good time we were going to have at the lake this year.