About a year after I fixed the woman at Ash Tree Farm's plumbing, I was again passing the house on my way to the river. It was my favourite walk. This time, I was accompanied by a girlfriend. We had both taken the day off work and were on our way to the river for a picnic. Plus some al-fresco fucking. The path across the fields was not a straight line, it turned left to join a muddy farm track, then right across another field and down to the river. The farmer must have recently trimmed his hedges, because opposite the path/track junction was a ladder stile, previously hidden. A short cut? I climbed the stile, sure enough the trees lining the river were directly ahead. The field was lovely, slightly undulating and filled with long grass and buttercups. We decided to give it a try. Jenny, my girlfriend, said that she needed a wee, I was to stand guard. She followed the hedge, over a hump, until she was out of sight. When she returned, she said; "There's a couple in the field, fucking." Well, it's a free country. I decided that I too, needed a pee. And a peep. Jenny came with me. Sure enough, no more than ten metres away, were a coupling couple. At least, we assumed it was a couple. The woman was on top, cowgirl style. Her mount was hidden by the long grass. As we watched, she rode up and down on his cock, big tits flopping, gasping each time she bore down on the unseen cock. Then she saw us. Without pausing her ride, she waved! We ducked down and retreated, embarrassed. We had a quick conflab and decided to complete our plan for a picnic. I was now looking forward even more to fresh-air fuck, emulating Buttercup Woman. We continued to the river, spread out our blanket, opened the wine and began. We had barely started when a very tall man appeared behind us, saying; "Mind if we join you." I did, but didn't say so. There was plenty of room. But bang went our fuck. He moved past and to our left. As he moved, his partner was revealed. Buttercup Woman. She grinned and nodded. They were an odd couple, he was well over six feet tall and very thin, she was no more than five feet and, well, let's just say endomorphic. i.e. cuddly. They introduced themselves as Sara and Paul. They set up their stall a few feet away. Sara kept looking at me and smiling, she knew that were her voyeurs, and she knew that we knew. Riddled with guilt, I confessed; "I'm sorry for spying on you, it was not intended." "Don't worry about it," she replied. She had a slight accent, German? "We like to be watched, don't we Paul? " Paul nodded, he hadn't said much. "Were you offended by what you saw?" Sara queried. I wasn't expecting that. I swallowed and answered truthfully; "No." "Of course not," she said. "Why should you be. We are nudists. Before we moved here, we belonged to a club. We were asked to leave because when we're nude, we can't keep our hands off each other. We were heading here to fuck, but couldn't wait. That's when you saw us." But she was not finished, far from it; "The British are such hypocrites, we all like sex and most of also like to watch, otherwise there would be no market for porn. We take it a bit further, we like to be watched." She paused for breath. "Now that's in the open, would you mind if we stripped off now? You've seen most of it anyway." I was still trying to get my head round what she said. She was right of course, but I had never met anyone so open about it. I closed my mouth and turned to Jenny. She looked as if she was in a trance, eyes staring, mouth open as mine had been. Her nipples were drilling through her teeshirt. I broke the trance, saying; "Jen?" She jumped, spilling her half-full glass of wine in her lap. "Shit!" She gasped. Then; "Sorry, no. I mean yes. I mean, go ahead, whatever you're comfortable with. Sara, peeled off her teeshirt, displaying large, pendulous tits crowned by tiny hard nipples. She nodded at Jenny and said; "You'd better get out of those wet shorts. Don't worry, you're among friends." Jenny hesitated, then raised her bum off the blanket and wriggled out of the shorts, revealing bikini-briefs, also wet and, I suspected, not just with wine. She kept then on. Sara removed her shorts and knickers together, revealing a neatly-trimmed triangle of pubic hair that did little to conceal her plump, wet cunt-lips. My cock was straining to be free. But I opted to keep it concealed. Paul stood up and removed his shirt, he was as skinny as Sara was plump. Jack Spratt could eat no fat. His shorts followed. I had to stifle a gasp, Jenny squealed. Hanging from sparse pubes, was a snake. A one-eyed, circumcised snake. I hadn't seen anything like it outside porn. Sara grinned. "Impressive isn't it, " she said. "Wait till you see it aroused." Paul said nothing, just sat back down and sipped his wine. The talk stopped, but Jenny could not keep her stare from Pauls huge appendage. I made a thorough visual examination of Sara's ample curves, but was still drawn to Paul's pole. Sara leaned across and kissed Paul, curling her fingers around the sleeping giant. It stirred. Soon it became too thick for her to encircle, she bent over and took about a third of it in her mouth. She sucked on it for a while, then threw her leg over him, guided it to her entrance and impaled herself, groaning as it stretched her. She looked straight at me and winked. Then began to ride it as she had in the field. My attention was interupted by a tap on my shoulder, I turned. Jenny had removed both her teeshirt and knickers. "Fuck me." She mouthed. I had a better idea, her legs were apart ready for me, but instead I bent and kissed her wet cunt. I have never known her come so quickly. By the time she came down from her plateau, I had stripped naked. I positioned myself above her and slid full length inside her wet, welcoming cunt. Ou new-found fuck buddies had changed position, Sara was on all fours, Paul was ramming his extraordinary cock into her doggy fashion. I exploded i to Jenny's clasping cunt, Paul gasped as he discharged into Sara's. Almost as though the gods were displeased, there was a clap of thunder an heavy rain fell. At first the four of us danced naked in the pouring rain, but eventually pulled on our wet clothes and trudged home. Paul had parked his car in Ash Tree Lane, they gave us a lift back to my flat. As we got out of the car, Sara said; "See, it's good to share isn't it? If you liked it as much as we do, text me." We touched phones to swap details.