I often go for walks in the forest, just to get some air and enjoy nature. Well this day things were different. I was walking along my quiet trail at dusk. Not many people do this walk and the ones who do it go during the morning. I was not expecting to see anyone. Along the walk there is a stream that runs, with little pools and this delicate waterfall, just slightly off the track. I would often go there just to sit and listen to the sounds of water splashing into the pool. A few times I swam there with some friends. It was pretty clean, though I would never drink from there.
As I am walking there I hear some voices, a female and a male voice. I slow down and walk as softly as I can, so not to disturb who is there. From a distance I can see the fall and two bodies. They are taking off their clothes. I step off the the clearing and into the thicker bushes. I keep on creeping until I am at the last big tree that I can hid behind and not be seen. The guy takes off his clothes all the way and the girl follows him. They are both naked, giggling. He turns toward her and as an erection. She grabs it and gives it a tug and laughs again. He grabs her boobs and squeezes them. Then tells her they should get in. They step into the pool. They take a little while to get it. It isn't the warmest water, but not freezing. I see her nipples are popping out now.