When I was in college, I got fucked in a botanical garden after hours by a security guard. Very atmospheric.
My ex also had me suck him off in the car on a long road trip, parked at in an empty church parking lot. He also tried to fuck me in a random shady bar bathroom in the French Quarter of New Orleans, but that felt a little too scary.
I’d say…
On top of a car, during the day, in front of a friends family lake house, while about 15 or so of our friends were there. That was a loooong while ago.