This happened many years ago, before we had things like AIDS to worry about. Not to say that it might not have happened later as well, but only in a much safer way!
I was on a walking holiday in Germany, and was travelling alone. I was supposed to go with my girlfriend, but we split up shortly before, and she understandably pulled out. The intention had been to go walking together in some of the forest areas in Bavaria. This had the reputation of being beautiful country, and I wanted to see it, so after the split up I decided to stay with the plan. I travelled about and stayed in several different places, mostly camping. The two-person tent contained only one.
On this occasion I had been staying on a campsite at the back of an old country inn on the edge of a small town. They served great beer and it wasn't far to stagger home. During the day I walked in the surrounding hills. The weather was fantastic, and despite being alone I was having a very pleasant time. One day I stopped close to a little lake. The weather was warm and I was tired from walking, so I stopped and ate the sandwich I had brought for lunch. Afterwards I lay back in the shade of an outcrop of bushes and dozed off.
I must have been asleep for a couple of hours, and awoke to the sound of splashing and laughter. Raising my head and peering through the bushes, I saw a young couple bathing in the lake. They were stark naked. This was not such a big deal in Germany as it might be in other places. Nude bathing quite often happened, although it was considered polite to be discreet about it. This lake was in a secluded spot and there was no one else around, apart from me of course. The couple were in the water up to their waist and splashing each other. I admired their fortitude, because although it was summertime the lake water was cold. I had tried it earlier, and it would certainly have been too cold for me to get my clothes off!
Both of them were fair-haired, and the man sported a short beard. The woman had fairly short hair, and a slim figure with very perky breasts which bounced pleasingly in the sunlight as she and her lover played. They both looked quite athletic, and presented a picture of healthy outdoor fun with only a touch of eroticism. As I watched them unobserved, they began to make their way to the shore. As the rest of the woman's figure came into view, I began to wish I was out there playing with them. Actually, playing with her lovely naked breasts would have been a good start. She had the most gorgeous bottom I think I'd ever seen, and when she turned her bush was pleasing: a natural blonde, her pubic hair was straight and not too thick. I don't like dense curls in that location. The couple came out of the water and I saw that they had left their stuff by the lakeside on a blanket.
I had assumed that that would be it, but it was only the start. They produced towels and began to rub themselves down, but I saw that the man had stopped and was looking intently at his partner. Then he reached over and began to rub her down with his towel. She smiled at him and began to use her towel on him. He soon began to respond, displaying a healthy and very creditable erection. At this point the woman fell on her knees in front of him, fondling his balls and cock. Then she leaned forward and took his cock into her mouth, gently sucking and licking it. Not surprisingly, he closed his eyes and let out a moan of pleasure. Then he also went to his knees, and kissed her. She fell back on the blanket, parting her knees, and he was soon between them. He bent his head to her nipples, sucking and licking them, and then with a moan he lowered himself to her. As she raised her legs to wrap them around him I glimpsed her lovely vagina, lips parted and glistening in the sun. Then he slipped his cock into her and the intimate sight was barred to me.
I was only wearing shorts and a T-shirt, and the sexiness of the sight, combined with their passionate moaning and my lack of any recent activity, was enough to produce a considerable erection in my shorts. Glancing around, and seeing that I was not likely to be observed, I slipped my shorts down and began to stroke my burgeoning cock. I had done this watching porn before, but the real thing was something else. You always know that porn is just being done for show, but this passionate coupling was genuine. I found it an incredible turn on. I watched as they kissed and fucked in front of me, and felt the sap rising in my own firm, full cock. A sudden uninhibited cry from the woman made it clear that she had launched herself into orgasm, and I watched as she lifted her hips off the ground and tightened her legs around her lover. He jerked his head back, seized her hips and cried out in his turn as he shot his juice into her. This was too much for me. I stifled my own urge to cry out as my cock swelled and I began to spurt my own cum over the bush in front of me. I wished it had been hers. Better still, I wished I had been spurting deep inside her, filling that lovely vagina and feeling it tight around me. But I kept silent and watched as they kissed and cuddled and then got dressed and went on their way.
That evening I left my tent and went to the inn to sample the beer. The bar was crowded, and I ended up finding a seat at a table occupied by several other people. I nodded to the couple next to me, and must have blushed as I realised who they were. They were of course the couple I had seen sporting by the lakeside. It turned out that they were Swedish, and like most Swedes spoke excellent English. He was Peter and she was Inge. We exchanged a few polite comments about the countryside and the weather.
"It was so warm today," said Inge, "we went for a swim in the lake."
Without thinking I said: "I know."
She gave me a curious look and muttered something in Swedish to Peter.
"You mean you saw us?" she said.