"Want to hit the lake?" he asked. I nodded, and we walked down into the water. It was nicely cold. As we waded in, the guy and I kept drifting into each other, bumping arms and shoulders. When it was deep enough, he dove in, and I followed. We swam across the lake, but the water was full of dead trees on the other side, so we swam back to the deep spot in the middle. The guy floated on his back for a while. Even though the water was cold, he still had an erection. The head of his penis stuck up above the water. I was treading water. Then the guy dove under the water. He swam against me, his body rubbing against mine as he slid across me under the water. I felt his erect penis brush against my hips and cock and testicles. He swam back, dove again, and swam across my ass, pressing his hard dick against my buttocks as he glided by. Then he swam between my legs. Halfway through my legs he turned onto his back so that as he passed under me his penis and testicles stroked against mine under the water. .....