We were in the Sawtooths, where the mountains are lovely and the people are scarce. I'm glad you knew the route, because it was not well marked. You set a pretty fierce pace; I'm not used to mountain biking, I normally ride on pavement, but we were ahead of our schedule. We had completed 20 miles of a 35 mile loop, and it was just about noon. We were dusty and tired, however, and when we came to that waterfall, it seemed like a godsend.
We leaned our bikes up against the rocks, and sat down at the edge of the pond, pulling our sandwiches out of our backpacks. It's funny how good salami and spinach can taste when you've had a hell of a workout. I didn't expect you to have beer, however. Your high-tech cooler thingy really works. So we ate - and drank - in silence, except for the sound of the water cascading down and roiling the surface of the pond.
I guess great minds think alike. The pond wasn't deep enough to actually go swimming, but we could walk 25 yards to the far side and stand under the waterfall to wash off the dust. Of course, we didn't want to complete our ride in wet clothes, so the clothes would have to come off. We had been friends for years, so, what's a little nudity among friends? The beer helped in that regard.
So there we were, naked, splashing around in the pond under a natural shower from the cliffs above. That mountain water is cold; it was refreshing, but coldness affects us menfolk by causing our manly stuff to shrink up. Which happened to me, of course, but then for some reason I started to get hard. And I saw you looking.
We both froze in our tracks. I hoped my growing hard-on would subside, saving me any further embarrassment. But with your eyes locked on to it, it just kept getting bigger. Neither of us spoke. It would have been necessary to shout to be heard over the noise of the falling water. We just stood there, a few yards apart, and looked at each other. And I have to admit, you looked pretty good. Your breasts were lovely, your nipples hard (although the cold water could account for that as well.) Your muscular thighs framed a neat patch of pubic hair, and suddenly I wanted to see more.
I took a step toward you, and simultaneously, you took a step toward me - again, great minds. We were standing quite close, and your eyes were riveted to my cock, standing at full attention, seven inches long, rose-colored. Your eyes traveled up and met mine. Your face was expressionless. Then your eyes returned to my cock, as if drawn by some powerful magnetism.