It was a hot summer and one of the few times my family actually went to a real lake. They had business friends who had a lake cabin. I had seen their son, Greg, a few times before but only about once a year. We hadn't seen each other for a couple of years but when we arrived at the lake for the weekend, it was fun to get reaquainted. Greg was much taller than I remembered him but just as skinny and just as friendly. We spent most of Saturday morning riding the two motorcycles he had around lake trails. In the afternoon, both of our families and some others went to the dock and for a couple hours, we waterskiied from his dad's boat. It was great fun...I hadn't done much of that before. But Greg had. His family went to the lake almost every weekend and he had a killer tan. He looked like a dark Mexican, except for his blondish hair and penetrating blue eyes. He had an intensity about him that made me curious--he looked deeply into anyone he was with. I was amazed at how good he was when he skiied. He could get up and stay up. And he laughed how my inexperience caused me to take a half dozen times to get up and then promptly fall down. The evening ended with the family "campfire" and after the adults went into the cabin, Greg and I went to his tent but neither of us were ready for sleep. We talked a long time about school, what we liked to do, about the others who boated with us. It was a warm evening and eventually, we decided to walk around in the dark with our flashlights. We went back down to the boatdock and sat and talked some more. Greg suggested we go for a skinnydip but we had to do it quietly because the water's edge wasnt that far from cabin. So in the darkness, we shed our clothes and slipped over the side and into the water. It was warm and probably about ten feet deep so we held onto the dock and talked and laughed. I spashed him and he splashed back but we were trying to be quiet about it. I didn't expect him to grab me around the waist and pull my grip from the dock that held me up but he just held me there and for the first time, I was very aware of my nakedness and his touch. Strangely, it excited me alittle because no boy had ever touched me when I was naked. I didn't fight him but let him hold onto me and then I let myself float up on my back and he used his free hand to support me. Only now, he lowered his hand and held me by my ass. I wasn't sure what to make of that but I knew one thing...my dick was getting hard and in the moonlight, I was afraid he could see it. He did. His face wasn't very far from my rising dick and he said, "I see you like that!" And he reassured me as I started to lower myself into the water by saying he liked that too. I was getting embarrassed by my uncontrollable erection. "Funny, isn't it, how your dick gets hard anytime it wants to," he joked. And he said his was too. He told me turn over in the water and he used his hand to help me turn. As he did it, his hand moved to my lower belly to support me. Only he moved his hand down and his forarm was firmly on my dick and that made me even more excited. Before I even had a chance to think about it, he grabbed my dick like a handle and squeezed it and used it to hold me near the surface. Sure, I'd jacked off before but this was really exciting and I told him that felt really good. I was alittle worried about being discovered and he told me not to worry about it; and what he was doing to me, I didn't want to either. Greg told me to grab onto the dock with one hand and I did so we were facing each other. He grabbed my dick again and I decided to do the same to his. I shivvered a little when thinking about it but when I reached down into the dark water, it was there and as hard as mine was. We slowly squeezed each others dicks and as he rubbed mine up and down, slowly, I did the same thing to his. This was great. We talked about jacking off and admitted we both did it all the time. He asked me if anybody had ever sucked my dick and I said no...that I hadn't even done THIS before. "Well, I'm gonna give you a treat if you want it," he said and by this time, I was all for the new experience. We moved over by the shore where it was shallower. Hidden between the boat and the dock, we stood in knee deep water. His hand was back on my dick only he got down on his knees and replaced his hand with his mouth. Even though the water was warm, it wasn't as warm as his mouth and he took my dick in and started moving up and down. I put my hands on his wet head and closed my eyes, feeling every movement as he bobbed off and onto me. He moved his hands up and down the small of my back, across my ass and down my legs. It was incredible and it didn't take me long to build up and let my load spurt into his mouth. He just spit it out into the water beside us and he sucked what little remained and then pulled me back into deeper water. "Usually, when somebody does that to you, you're supposed to return the favor," he said. "Obviously, I'm not going to tell anyone!" Well I thought about it but since we'd been in the water, it didn't seem so gross so I agreed. We went back to the shallow place and got down on my knees and rubbed my hands on his waist and his legs and back to his manhood. I took a deep breath and just did it. It wasn't so bad. It didn't really taste like anything. The shape of the head of his dick was strange in my mouth and I licked it and sucked the end of him. I told him though that I didn't want him to come in my mouth and he said he wouldn't. Instead, he stopped me and said he would get off by rubbing his dick on me. That sounded better to me. So he suggested we move to the bank and i laid down where the water lapped against the shore. I was on my belly, about halfway out of the water. Greg reached to the bottom and pulled up a handful of mud and rubbed in all over my ass. "You'll like the way this feels too," he reassured me as he rubbed my backend and smeared mud between my cheeks. That felt pretty decent too and then when he mounted me and slipped his still-hard dick between my legs, I felt a completely new sensation that also was pleasing. The mud made him slippery between my buns and he slid his dick across my asshole and down below. It felt better the more he did it. I tightened my muscles and even arched my back to give him a better position. His breathing got faster as he pumped more firmly against me and I pushed my ass towards him. I couldn't make up my mind whether I wanted to risk him hurting me or to get him to put it deep into me but I knew I was hard again and when his dick was up against my ass, I just felt like opening it up to take him in. And he did slip it inside me. It didn't really hurt at all because it was so slippery. A sensation I'd never felt before. Finally he stopped and announced he'd come. We spent afew more minutes in the water, sort of getting the mud off of us...I cleaned him and he cleaned me. We got out, got dressed and went back to the tent. I was alittle sore by then but I had liked it all. As we settled into our sleeping bags, we promised we would still be friends and we fell almost immediately to sleep. The next day, we swam, skiied and rode motorcycles but never mentioned what happened. Like nothing had ever happened. Except after that, I looked at his body differently. And later, after the weekend was over, I longed to do it again and it gave me something to think about for months as I lay in bed at night. We never went back to stay at his parent's lake