My wife and I had had threesome encounters with John on a few occasions, always great fun as he was a very pleasant chap. On this occasion, we had arranged to meet, but decided to do so out in the country in our Type 2 VW van, which we were converting into a campervan, so it had the bed fitted, but nothing else at that time - no curtains, no carpet, nothing. So, the time had come for us to meet, and just before John arrived, I thought it would be fun if my wife was completely, totally, utterly naked and ready for him, lying on the bed and gently playing with herself. I had to remain dressed as the plan was to have a little drive around while they fucked in the back. John parked up behind our van, and approached the side door, opened it and just gasped! She was playing with her clit and grinned wickedly as he stared at her superb size 8 naked body. Needless to say, it took only a few seconds for him to climb in, and not much longer before he was also naked on the bed. At this point I drove off, in the hope that we wouldn't attract too much attention with the van "rocking and knocking" even though we were out in the countryside well away from the nearest town. It is known as a dog-walkers area, so some discretion was better than none - you never know how open-minded other people are! Whilst driving, I had the mirror set to watch the two of them as they played with each other, and could see that John was busy with his hands everywhere. On her tits, massaging those 32B perfect orbs, gently squeezing and teasing her nipples before moving down to suck them and lightly bite them while his hand slowly moved down to her neatly trimmed pubes. Here, he played with her clit just as she had been doing to herself only a very few minutes previously, bringing gasps of joy from my wife. She hadn't been idle either, playing with John's cock and as they swapped positions, she fondled his bum and stimulated that sensitive area between the anus and the scrotum. John had already got an erection, but I guess this must have been a first for him, as he was gasping and panting with the feelings my wife generated in his fun area. Perhaps because we had limited time, they quickly started to fuck, first of all missionary and then with John on his back being ridden by my wife, bouncing up and down like a rodeo professional on a wild horse! She was facing the rear of the van - and hence it's rear window, at the same height as herself - when (because I wasn't;t driving too fast) a lorry came up behind us. The driver was certainly close enough to see all that was going on, as he flashed his lights to let me know! This didn't deter, even for a second, my wife from her task of getting a good fucking and making them both come. After a few minutes of being watched while fucking, she changed position and in doing so, gave the driver a full, perfect view of her naked body as she turned around to lower herself back on John's very hard, wide 8inch plus cock. She resumed her thrilling ride, only now when I looked in the mirror, I could see her cunt being stretched by John, and also her beautiful tits bouncing in time with her exertions. It came time to leave the main road, and return to the area we had met John, so several miles of country lanes followed, and John had my wife lay on her tummy while he entered her from behind. He then had her close her legs while he straddled her. She has more intense orgasms this way, especially if you put one hand under her body and play with her clit at the same time! I again parked up, and started to undress, when I spotted a middle-aged man waling his dog, come round the bend in the road. As they were still fucking, and clearly getting close to mutual orgasms, I thought they might not appreciate being told to stop! With the van rocking, he came closer and closer - clearly able to guess the activity going on! Neither my wife or John were paying any attention to the outside of the van, so I let them carry on as this chap walked past, spending a few moments looking through the back window at the naked, fucking couple inside as he did so. My wife spotted him, and said "Oh fuck!" but didn't stop shagging John, who also now noticed the voyeur at the window. By now they were so close to coming they couldn't have stopped had they wanted to. Our viewer decided not to push his luck, so moved away just as they both came, not particularly quietly! By this time i decided I needed some relief too, and got naked and into the back of the van as they separated. I have to admit to being a little over excited, with the two of them fucking and being seen by two guys naked, so I joined my wife on the bed, still face down, and quickly entered her stretched and very wet cunt to fuck her again. I'n not some super-lover, and had been wanting also, so it didn't take long to shoot my load into her, adding to the generous measure John had left there only minutes before. During our fucking, John had dressed himself and was ready to depart, he was on a tight time schedule. Leaving the van by the side door which was next to a small wooded area and a field, I asked him to leave it open to make it easier to get ourselves cleaned up and dressed. We heard his car depart a few seconds later but were still excited, exhausted and calming down from our orgasms so we didn't hear the dog walker come back past the van - this time on the inside - until he poked his head in and thanked us for the show! We were both still naked at this time, so my wife stood up and did a twirl to make sure he hadn't missed a thing, the cheeky minx! He then reached out, and for a few seconds fondled her tits, arse and cunt, before saying he had to go as "something has come up I need to take care of!" I think, had he been a little bolder, he may have had his issue dealt with by my wife, in a much more pleasing way! You may need to be aware that this episode took place some 29 years ago, and we are no longer the super skinny, fit middle-aged people we once were, but the memories will last forever even if my flesh is no longer capable of satisfying my lovely wife. She is, alas, no longer confident of her body and is not together willing to consider new lovers, which I find such a pity. Hey ho!