Note: This story was dynamically reformatted for online reading convenience. Family Picnic - Part 1, How it Began (MF, 1st, mast, inc, ws) Mom and Dad decided it was a good day for my brother Robbie, who's 15, and I to go with them to a nearby county park for a picnic and some hiking. It's just the two of us kids, and I'm the older sibling, being almost 19 years old. When we got there, we unpacked the car into a nice shaded area and Robbie and I told our parents we were going hiking. Dad pointed to one trail and said he had been on it before with his hiking club and that somewhere along the way, there was a beautiful spring-fed pond. So Robbie and I set out for our adventure together. We walked along for a good while talking about people we knew and generally joking around, and then we heard what sounded like a waterfall and saw some water through the trees ahead. There it was, a beautiful swimming hole that was crystal clear and blue-green in color with trees and rock surrounding its banks. There was a small waterfall, water falling down some rocks on one side of the bank. It was amazing how quiet it was except for the sound of falling water, our own private little peaceful paradise. Neither one of us had to say a thing, we knew what we wanted to do. With no bathing suits, we decided we would undress in separate corners behind the rocks, and jump in. He was first to finish and I heard the splash. I called to him, "Turn around and don't peek, I'm coming in." The water was a bit cold but it felt wonderful, especially to be skinny dipping. I love to feel water like that running through and around every crack of my whole body. It is so exciting, no boundaries, all that water slithering by every inch of me. It feels very stimulating and extremely erousing.. Robbie was a great swimmer and I watched him on the other side of the pond going up out of the water and I would catch a glimpse of his tight round ass as he went under. It was slightly erotic, but felt it was a pretty much forbidden thought, to know that he was out there swimming naked. Why was I so eroused? He was my brother. I guess it was just being naked in that lovely water. As I was floating along, I felt something brush against my foot and yelled out a short scream. Robbie heard and swam over to me quickly. I told him it must have been a fish because I didn't see anything now. All of a sudden we were facing each other totally naked in the clear water. We each looked down and saw each other for the first time. I know Robbie had never really had a close girlfriend, so I didn't know if he had ever seen a naked girl before, but he was looking intently and I couldn't help but notice he was excited and aroused. His cock was growing and I guessed looked even larger as the water rippled by and I wanted to touch it so badly, that I softly gasped. Through the rippling water I could see he had dark brown hair encircling what looked to be a well-hung cock and his balls were on the small side, but that could have been the cold water. He sort of gulped, as if to have lost his breath for a minute, and said, "Wow, sis, I'm sorry for staring, but I've never seen anything like you before. Of course, in pictures but... Instinctively, I looked down as if I hadn't either. But my large tits were swaying underneath the water and the large brown nipples, which were now erect, looked even bigger. I held my head back a little and started to massage them and it felt good. Out of the excitement of the moment, he reached over and uncontrollably touched one of my pulsing hands and then took it away and touched one of my bouncing tits. At first I pulled back a little and said, "Oh!" Then, "Well, all right then. You need to see what this is all about, don't you." I was very turned on now, I could sense the moisture coming from my pussy hole and felt stimulated even more by his touching me and the curosity I had myself of wanting to touch him. He felt more comfortable about touching them and used both hands now touching the ends of my erect swollen nipples and pinching them between his fingers. I said, "Get them in your hands and squeeze them back and forth and be as firm as you like." It felt better than I dared hope and I felt the precum dripping outside my pussy now. By this time his prick was fully extended and I just reached down and touched the velvet soft head of it and played with the hole he pisses from. My stomach leaped and I could barely stay afloat now. He moved towards me a little and held me by the waist as he started at my body and what I was doing to him. I began stroking the whole cock and held his stiffness with both hands, rubbing up and down his shaft. He reached one hand down brushing my pubic hair lightly, as if afraid, right before it reached the pussy lips. Then he pushed his pulsing cock into my leg rocking it back and forth. I told him, "Oh, there's more to it than that. Would you like to know all about it?" He gulped again and, as if he had to be brave, said, "Sure, yeah, I would." I told him to stay in the water while I swam to a nearby rock that looked flat enough for me to sit on. I got out and sat on the rock while he swam over and looked up at me. He was eye level with my pussy now and was intently looking at the mound of abundant light brown pussy hair I had. I put my knees up so he could view the outer lips better and the hint of little pink part dangling down the middle. I spread my legs apart and took my fingers and spread the lips apart exposing the clit and beyond to my ass hole. He gasped, "I've seen pictures of that, but had no idea..." I instructed and pointed with my finger to my now very swollen and sensitive pussy, "This is my clit. It's like a man's penis, it likes to be touched and is very sensitive. Down here is a tiny hole where I pee from. Can you see it?" "No, he said." Then right next to that is a larger hole and that's where the man's penis goes when you're fucking. And I took my finger and inserted into the hole about an inch. "Oh, wow," he said, as he stared intently. "First of all, I need to pee, so I will let you watch. Stand aside a bit." He was silent as I spread my pussy lips apart and a spurt of pee lifted out of me and up in the air hitting the water below with a splash. I love watching it myself when I'm on the toilet and bend over and watch my pee gushing out. I asked him if he had to pee too, and to my delight he said yes. He climbed out of the water and sat down next to me. He leaned back a bit and held his dick in one hand and aimed it down into the water and the piss started to push out of the hole at the top. I put my hand on his as he was holding his dick and then put my fingers closer to the hole on the end of his penis. I said, "Oh, I am going to touch it as it's flowing out." And I reached out and let it hit me in the hand. It was warm and I reached up to touch the velvet soft head of his penis again, as the piss went up and out into the water, massaging the hole slightly feeling that warm gushing shower. I told him when I was a girl, around 5 or 6, I had asked several neighbors, girls and boys, to piss for me in the bushes of the house. I ached to see the pee coming out of their little holes. I didn't know why, but it was exciting to me then and that's when I started to masterbate. I was so eroused and excited that I reached down with my other hand and started to stroke my clit. I moaned as I lightly was touching it and then went down and pushed my finger all the way into my juicy fuck hole as far as it would go and out again. I was pushing my finger in and out now as the final drops of pee came out of him. He watched as I pulled out my finger full of wet pussy juices and put it in my mouth as I would suck on it like a lollipop. Then I immediately stuck it back deep inside my hole and repeated the sucking. Next time I stuck it in, he grabbed my finger and stuck it in his mouth and started to suck. I grabbed his very large hard dick and was pumping it back and forth. It was redish-purple at the top, I could see the veins all up and down it, and it was leaking his clear sticky fluid covering his hole at the top. I touched the end of it with my finger and stuck my finger in my mouth licking it off. I took the stiff cock in both my hands and began rubbing masturbating him quickly. It was pulsating on its own in my hands. Just then he whimpered and he came. He shot out the sticky white sweetness all over my stomach and aimed it down to my pussy and I rubbed it all over me. I grabbed his finger and aimed it for my pussy. He was a quick learner because he knew exactly how to stroke me on my clit and then inserting it up into my hole and back. I was also very hot and ready to cum at even the slightest touch. Which didn't take me long either. After a couple of thrusts into my pussy, I stiffened and pushed myself up and down on his wiggling finger. It was all over. We both just looked at each other and smiled. It had certainly be an eventful afternoon full of surprises. We got dressed in front of each other this time. Wonder if we should thank dad when we get back for giving us such a fun direction to go in. Wonder if dad would like to ever hear about it. But then that's for another story!