A Sensual Summer Session

"What we did yesterday was beautiful", she replied. "You are teaching me what I need to know so that when I have a boyfriend, I don't look like a child. Would you rather have me learn from some punk that is all hands and doesn't give a shit about me or how I feel?"

And that was the problem and we both knew it. Only I could show Kim what she needed to learn in a way that would be loving and caring and not potentially fuck up her sex life for the rest of her life.

We were alone in the mountains, it was a nice summer day, and we had been talking about sex so much for the past day, and yesterday I had her tits in my mouth and her cunt smashed up against my cock. Would it cause harm? No. But it could lead to some if we didn't continue the lesson.

"If it feels good, if you are with someone you like or love, and if it doesn't hurt anyone", she kind of quoted me saying yesterday, "then go for it. Well?"

I was silent for a full minute, trying to process everything that was happening to me. I loved my little sister; she loved me. I was the teacher; she was the student. It would feel good. It wouldn't hurt, except my what's right and wrong thinking, and I could let that go for the right reason. And Kim had just convinced me that this was the right reason. "All right," I said, "but I'm still not going to fuck you. That will be for some lucky guy sometime when you are older and in love. And it will be your choice, not his or mine. Understand?"

Kim lay there looking at me, with such an angelic look on her sweet little face. She slowly nodded her head and said, "Understand."

Now what, I thought to myself. When, where, what, how? "Do you want to do it here and now?", I asked.

She shook her head, and said, "No, I have to pee, and I think it would be safer if we were back at the cabin with the door locked, so no one could see us."

I had to agree. I stood up, a slight bulge still showing in my pants, looked down at Kim with her skirt still half up around her middle, and her white cotton panties still showing a large wet spot from her earlier activities. I reached out a hand to her, she grabbed it and I helped her to her feet. She stood there in front of me, looking up to me with her warm light blue eyes, and put her arms around me in a loving hug. I couldn't help but think about her titties pressing into me again. Yesterdays lesson was so nice, and I really liked her tits touching me. I put my arms around her, returning her hug, and squeezing her tits with my chest. She released her arms from around he, and as she was pulling away, one of her hands brushed against my pants, and her hand softly cupped my cock for a brief moment. The little imp, I thought, she just copped a feel. She acted as if nothing happened, and I let it ride. She would have her hands all over my cock before the day was done.

It took us half an hour to get back to the cabin. Normally it would have taken 10 minutes more, but Kim said she really needed to pee and would not go out in the woods, so we alternated running and walking, with her running near full speed the last 200 yards to the cabin. I let her run ahead. The cabin only had one bathroom, and I wasn't in a rush to use it. I took time outside the cabin to pick up a few things that had been blown around in the thunderstorm yesterday, so when I entered the cabin, Kim was just coming out of the bathroom, a much more relaxed look on her face they when I last saw it a few minutes before.

I grabbed a nice fresh North Carolina peach from the kitchen and ate it quickly, washing the juice off my hands in the kitchen sink when I was done. Kim had watched me start to eat the peach, then disappeared into her bedroom without saying a word.

It was my turn to use the john, and after I went in and closed the door I saw some white cotton panties hanging half in and half out of the clothes hamper. I grabbed them with one hand while pulling out my dick with the other and started making foam bubbles in the toilet water. I quickly inspected the panties and confirmed that they had a large wet spot on them, so they were the ones Kim had been wearing on our walk in the woods. I finished and put my dick back in my pants, then pulled it out again. I held my dick in one hand and rubbed the cotton panties up and down its length with the other. With a smile on my face, and you might say a smile on my dick as well, I tucked it back in my shorts before it got too big and hard to handle. I then rubber my face with a dry portion of the thin cotton and kind of sniffed at them at the same time, smelling Kim's sex juice on them. I wasn't quite sure why, but I then slipped them into my pocket and walked out of the john.

Kim was sitting on the couch, just finishing an ice cream bar. She was wearing the shortest skirt I have ever seen her wear, a white mostly see-through blouse with a simple white cotton bra under it. Usually Kim or other girls would wear something else under such a blouse for modesty, but it was clear that Kim wanted me to see as much of her bra and titties as possible. My cock had been a bit enlarged from the panty encounter in the john a minute ago, and grew a bit more as I looked at my little sister sitting there in such a sexy outfit.

She asked me if I could grab something for her to wipe her fingers on but I just went over and sat next to her without heeding her request. I reached and took her small hand in mine and lifted it to my face. I then slowly took one of her fingers and put it in my mouth, gently sucking it clean, tasting the ice cream but enjoying the feeling of the sucking even more. I did this to the other two sticky fingers as well, taking my time doing so. By the time the third finger was entering my mouth, Kim understood exactly what this part of the lesson was about and gently was sucking on one of my fingers as well, without me knowing how she even got it in her mouth.

Kim's skirt was, as I said, very short, and very full, almost like a skaters skirt. With our movements on the couch and the finger sucking and all, the tiny skirt was now not covering half of her and I could see that she was now wearing very pale yellow mostly see-through panties of nylon or silk or some such fabric. I could see some of her bush showing through the panties, and felt my cock stir some more in my own shorts. I finished her fingers somewhat to her disappointment, and said, "OK, now what would you like to do?"

"You're the teacher, I'm the student, if it feels ...", her words trailing off to nothing. I couldn't help but smile as she repeated my words from yesterday.

Kim was seated on the couch with her back leaning fully back, her legs somewhat apart, and her feet flat on the floor. Her skirt was askew showing me the pale yellow panties and the bit of cunt hair. The student waiting for the teacher to continue the lesson. I was sitting sideways on the couch, my left leg folded under me, my left arm was around Kim's shoulder and behind her neck with my hand resting on her far shoulder. My right hand was free to do as I pleased.

I took my hand and touched her face, slightly turning it to face me a bit more. I leaned over and kissed her in a way I have only kissed my lovers, never my kid sister. After the kiss, I returned to a more upright position and Kim rested her head back on my left arm, relaxing the best she could under the circumstances.

I let my right hand come down slowly from her face sliding down her neck and stopping on her tit. I rubbed her nipple through the bra until I could feel and see it poke against the see-through blouse. With one caress and compressing of her full breast, my hand then went down to her right hand, taking it and moving it onto and around my cock, and I squeezed her hand gently so that she was squeezing my cock in her hand. The look on her face was priceless as she realized what she was doing. I just grinned a bit and nodded my head in approval.

Words were not necessary or even wanted. This was a lesson of touch and feel. Her hand was now acting on its own, with no further direction required on my part. I flexed my cock twice, showing my kid sister that it had some, although limited movement ability in its fully erect state. Her hand was exploring the full length of my cock, and her fingers slipped down a bit to gently explore my balls. With her full hand back up on my cock, I slightly thrust my hips a bit and she starting stroking my rod as if she had been doing it just right for years.

My hand came up and began working on her right titty, waking it from its passive state. Kim's breathing was starting to become heavier and I knew she was enjoying every moment, as was I. I managed to unbutton her blouse with my one hand, spending lots of time on each of her titties, as she continued to play with my cock.

I shifted position a little, taking my arm from behind Kim, and moving my right hand between her legs. She let out a little gasp as my hand engulfed her pussy. She spread her legs a bit and moved a bit lower, her ass coming forward a touch to allow me better access to her mound. I had moved her skirt so that it was completely up out of the way, giving me full view of her tiny yellow panties. Using mostly my fingers held together, I rubbed her pussy up and down, up and down, responding to her reactions and she responding to my touch.

There was now no thinking about what was taking place on either of our parts; our bodies were just doing what feels good. My hand would caress her inner thighs and then return to her cunt. She continued to stroke my cock and hold it and squeeze it in a most loving way. Twice I felt Kim tighten her muscles and give that little shudder. When she did this she would squeeze my cock hard with her hand, and I was glad that it wasn't my nuts she was squeezing. Kim's yellow panties were completely wet and very slippery which just aided in the good feelings as I rubbed her little cunt.

I loved looking at her bra holding her breasts, the look on her face as I touched her body in new ways. I could move my head over and suck on one of her tits, right through the bra. This seemed to excite her and I knew it excited me. Finally at one point I took my hand and lifted her bra on one side sliding it above her titty and played with her nipple with my fingers and later with my mouth. I left her other tit covered with her bra, `cause it was a big turn on for me to play with a titty covered with a bra. God how I loved bras and loved the titties they held.

Kim's constant playing with my cock was starting to get to me, and I knew that the lesson would not go on forever. I had to stop feasting on her tits or it would be all over and I didn't want that just yet. My eyes went down to the yellow panties and I saw the dark area of the pale yellow, indicating the wetness. I looked around a bit more, trying to reduce my level of excitement so I wouldn't cum yet, and for the first time I saw the top and sides of the panties. On each side was a small bow tied by two pieces of pale yellow fabric. I reached over and grabbed the end of one and gently tugged and to my delight it came undone just like a shoelace. I reached over to the other side and repeated the maneuver with the same results.

My little sisters very wet little yellow panties now kind of slid away from her pelvis, allowing me free access to her pussy. I thought to myself what the hell is a young girl who has never been fucked and never touched a cock before today doing owning a pair of see-through quick-off panties. Where do you even buy such things?

Returning my attention to the task at hand, I moved the now freed panties aside with a slight movement of my fingers and let my hand rub directly on her wet cunt. I slid a wet finger up and down her slit, fingering he clit and making her moan out loud. I slid the tip of my middle finger in her opening and withdrew it again. I repeated this a few more times, each time going a bit deeper inside her with my finger and then sliding my finger back up and rubbing her clit. With each movement of my finger on her she made louder and longer sounds, letting her pleasure flow.

While all of this was going on, I was aware that Kim had been messing around with my belt and zipper, but I was too involved with playing with her bare pussy and starting to finger fuck her that I really didn't give a shit what she was doing to my clothing. At least she wasn't rubbing my cock as much, which would have been too much for me to take along with her bare cunt. Now I realized that as I was opening her, she was also opening me without my full awareness. Now as I was finger fucking her bare cunt, she was yanking on my bare Johnson, fully as wet with pre-cum as her pussy was with her own pussy juice. My little sister, my student, had come to class prepared and ready for her lesson.

If it had been anyone other than Kim playing with me at that point I would have just repositioned us and started fucking her until we both came. But this was Kim, my little sister, and this was just a lesson on pre-lovemaking. She had nothing to worry about being with any guy, which is exactly what I thought from the start of this whole thing. But I wasn't about to stop the lesson at this point.

My right hand was busy finger fucking her tight little cunt while my left hand was playing with her smooth white cotton bra covered tit. We could each tell that the other was getting nearer to the end, and she increased the speed of her hand on my cock head as I increased the speed on my fingers playing her cunt. All of a sudden, she clamped her legs together tight, keeping my hand from moving. The only thing I could still do was move a finger around in circles around her clit, which of course I kept doing. Her whole body tightened, her head fell back and a kind of scream came from her mouth. My free hand tightly squeezed her bra and tit, my fingers squeezed her nipple through the cotton bra cup and she clamped her fist on my cock and was jerking it as well as if I were doing it myself. The excitement of her coming was too much for me, and as she slightly relaxed the tightness of her grip on my cock, I started shooting cum. It was my turn to let out a great moan of pleasure as I spurted away.

Kim's legs had relaxed a bit after her orgasm and my trapped hand was able to move a bit. It was mostly my hand just shaking as I was cumming, but I did manage to slip my finger in and out of her cunt hole a couple more times, which triggered an after shock in my sweet little sister and I felt her body shudder one more time.

We just kind of melted into a single mass of arms and legs and sweat and sex juice until we recovered from our orgasms and caught our breath. Kim still had my cock in her hand and I still had a firm grasp on her bra-covered titty. I was able to move my mouth over to her bare tit and slipped it in my mouth. God how I liked sucking tit. Kim was still gently stroking my cock, so that along with the tit activity kept me from going completely soft.

That part of the lesson, I decided, could wait for another teacher. For now I would let the student remain unaware, just as her sweet little cunt had yet to taste any cock pounding away at her innards. We remained enmeshed together, still playing with each other, sucking and stroking and rubbing for another half hour. We almost started up again full bore, but were both too spent to go that far.

I let her tit slip from my mouth, looked up at her soft glowing face, and said, "summer school is over."

Kim leaned forward and kissed me, and said, "Yes it is, and thank you teacher. I think I can handle things from now on."

We managed to separate our bodies and to stand up. She was wearing a bra, half on and half off, a very short full skirt with no panties left on her body. I was wearing a shirt, the front completely open and the buttons gone who knows where or when, and a bunch of something around my ankles that I had to step out of so I would not trip and fall. We then stepped towards each other and hugged each other.

Her tits were again pressing into me, and the smell of our sex covered us both. She touched my rod with her small hand and I responded by becoming a bit more erect. My cock rose to push against her bush and was begging for more. Kim blushed a bit and smiled up at me. I just shook my head and said, "No, I told you we are not going to do that. That is grad school, and you have a lot of undergrad work to complete before taking on such advanced subjects. And your tutor will not be around to help you." With that we released our hug and just stood there looking at each other for a long time.

I went into the bathroom and got in the shower. I washed myself and stroked my Johnson. To my surprise, it sprung to life and in less than a minute of stroking I let lose another load of cum, thinking this time about me kid sister and not the weather girl on TV. I washed the cum off my dick and off the wall of the shower. When I got out of the shower, there was a pile of clean clothes waiting for me. What a great student I smiled. When I left the bathroom fully dressed, Kim was sitting at the kitchen table, fully covered in a terry cloth robe, waiting her turn in the shower. The couch was neat and there were no signs of any clothing or any of our activity. I reached over and softly ran my fingers down Kim's cheek and jaw, and whispered, "Next." She stood up and padded off to the bathroom.

I went into my room and saw that my pants were carefully folded and placed in my suitcase, and my shorts were in the dirty clothes hamper. I stretched out on the bed, hearing nothing but the water running as Kim was showering. I thought how nice it would be to be in the shower together, soaping each other's bodies. But that was not allowed in my lesson plan. Just then I heard a pleasure scream come from the shower. So I wasn't the only one to need additional relief after the fact. It had to be all that after play, The tit sucking and cock rubbing that almost got us going again. And that final hug when my cock was reaching for her pussy lips. Kim needed another release too and had just taken care of things. Life was good, but for the only time in my life I wished that one of us had been adopted.

It was only early afternoon, but I needed some rest after our long lesson. I slipped out of my pants and put them on the bed. I got under the sheet and closed my eyes and was thinking of Kim's pale yellow panties and white cotton bra. Within five minutes I had grabbed a tissue from the box and was stroking myself while remembering my fine young sister being finger fucked by me a short time ago. I came again in about 2 minutes, and then fell asleep.

I woke up and it was 4 PM. A couple hours sleep, and I felt fine. As I became fully awake I became aware of something. Kim was in bed with me, behind me. She had come in while I was sleeping and crawled under the sheet, facing my back, and likely fell asleep herself. I turned over to look at her, and my moving stirred her awake.

"Hi.", she said. "I wanted to nap too, but wanted to be with my big brother, so I came in here. I hope you don't mind."

"I don't mind at all, Kim. You just surprised me a bit, that's all."

"Well, you surprised me too teacher, with all the stuff you managed to get into a single lesson. But it sure was a lot of fun. I never enjoyed any other class like I did that one."

"Well, I certainly hope not.", I replied.

"But I want to make sure I have the rules right.", Kim said. "First if you want to." "Second, ah, if it's with someone your love." "Um, oh, if it feels good." "Then do it."

"Well, that's close.", I said, "but I'm an easy grader, especially after our lesson today."

"What did I miss?", she demanded.

"Well, let's see. If you BOTH want to. If it's with someone you love OR LIKE. If it feels good. AND if it doesn't hurt anyone. Then"