This happened quite a long time ago, must have been early nineties. I went to Wemmer Pan's north shore (in the days when you could still get in there, before the serial rapist started hanging out there!) to check if there was any action. From a distance, through my binoculars, I could see three people sitting on a blanket next to a car. But it looked like a "strange" arrangement, so I was interested, and moved progressively closer, while keeping out of their sight. There was a white couple, he probably 50+, she probably mid 40s. The third person was an older black guy, also probably in his 50s. All quite a bit older than me. They had a bottle of brandy and a big Coke and paper cups, and the husband kept pouring drinks for everyone, and they were getting quite merry. After a bit I realised she was fondling the black guy, and then she got on her knees and started to give him a blow-job! This was when I realised there was definitely something on the cards, and kept moving in closer. She obviously got him good and hard (I was still too far away to see the detail), and then stood up and straddled him, lowered herself onto his cock and started fucking him cowgirl style. He just lay there, letting her use his cock, not touching her boobs or anything. This went on for a long time, and she was quite obviously enjoying herself! I expect he was too! I presume that she must have either made him cum, or he lost his erection, because after a while they stopped, she got off, and they sat on the blanket again and carried on drinking. The husband had mostly just been playing look-out, checking that they weren't going to be interrupted, but had been sitting quite close to the couple, watching her movements, and occasionally touching her butt. Then she started all over again, sucking the black dude to get him hard again, and then again getting on board and fucking him cowgirl. This time the husband was more interested in watching what they were doing, maybe more complacent (or more pissed!), and not doing such a good job as a look-out, so I was able to move a whole lot closer, eventually about 8-10 metres away from them, but hidden behind some bushes. My adrenaline was pumping, and I was semi-hard and leaking pre-cum. The husband was squatting right behind her, maybe a metre away close to the black guy's feet, leant forward with his head low, watching the action very close-up, and reaching forward and stroking her pussy area (or the black guys cock or balls, or all of the above!) from time to time. I was very nervous about approaching, but being so excited and with the husband so intent on what they were doing, I decided it was now or never!! I came out from behind the bush, and was maybe 5-6 metres away when the husband realised I was there. He shouted something, and she jumped off the black guy, pulled her dress down to cover herself, and sat there next to him, swearing at me - "Fuck you! Fuck you!". I said to her that I'd quite like her to do that, but she didn't see the funny side of it! I tried to convince them to carry on and let me just watch, or even join in, but she wasn't having any of it!! The husband just kept saying "ek's jammer, my skat; ek's jammer, my skat...". The black dude, who I could see was obviously quite pissed from all the brandy they had been feeding him, just sat there, covering his cock with his hands, and said "is die party dan nou verby?"!!! She told her husband to pack up, and went and sat in the car, seriously miffed. I expected the husband to want to beat me up or at least be angry, but he seemed more like confused and apologetic, and just packed their stuff in the car boot. The two males then also got in the car, and they drove off (very slowly because the track back to the entrance was very rutted). I ran to my bakkie and followed them out, to see where they were going. They drove around to the park on the south side of Wemmer Pan, and dropped off the black guy at the place where there were a lot of guys hanging out, hoping for piece-jobs. Then they sped off. So the white couple had obviously picked up the black dude, offering him "piece-work", so that the woman could use him. Presumably he was able to offer what the husband couldn't (size, hardness, thickness, or just an erection?), and she made good use of it, and had been very evidently enjoying it from the grunting noises she was making, and the husband was certainly enjoying watching the action (until I interrupted it...). I hope the black dude got paid for his services!! Afterwards I was really sorry that I had interrupted them, but I had thought there was a chance they might let me watch from close up. It didn't work out that way, but I still really enjoyed the bit that I had been able to experience!