Have you seen some naughty goodness occurring outdoors, not necessarily counting parties where there's a room with two people but something more like you're out in a mall and you see some bouncing in the corner.
There's a lot of woods and open fields in Scotland. I have seen two different couples having a go at it in the distance, one I heard at night, the other I saw in broad daylight. Because it's out in the country though barely any people pass by, so I suppose it might not be as daring as right in a city center.
I have never seen any personally and have very little desire to. Most people are ugly af and I have no desire to see them fucking.
However, I do have a co-worker who has told me about some that he has seen. Basically he works in the really early morning (begins his day at 2 a.m.) and he'll stumble upon people fucking in public. One time he even found a MFF threesome, or so he says. He always ends up calling the cops on them. Can't help but feel bad for the guy who got cockblocked out of the threesome by him XD
I've never seen it, but I have done it. Once in a hot tub, once in high school in the back area of the stage during a play, once when I went out to a club with a friend and we wound up fucking on the dance floor...
never seen it done either but I have done it myself. highschool athletic field, canal paths, in my truck a few times and another place I won't mention as anyone might think it was wrong.
I've done it out in the woods against a tree after photographing my girlfriend in her Misty cosplay and fingered her in the cinema when we went to see Suicide Squad. As for seeing I saw two people on a bench doing it in a very discreet manner. They were fully clothed, missionary position and this was broad daylight in an area in the middle of London, but from the way the guy was moving his hips he wasn't just amorously dry humping. The look on her face and gentle moaning was also a giveaway that she was receiving more than just cuddles and kisses :D
Ive had a guy show me his erection on the bus. He started jacking off, but before he finished the bus had to pull up suddenly, driving his head into the window. Now that was funny.
When I was working fast food, a guy was getting a blowjob while waiting for his order. They both looked at me, she didn't stop, and he asked for a coffee, extra cream. By the time his food was done, she was back to playing on her phone like nothing happened.