In a dugout at a public park's baseball field. It was during the day and right off a main road, but no one was using the field so we were likely unseen. But I could see cars driving by, and it felt super dangerous and hot, especially because of who it was with lol
As others have mentioned, I think size comes into play far more in terms of casual sex and hookups. I do prefer size, and if I'm just trying to get laid, I don't care nearly as much about a guy's personality -- give me a fit guy with abs and a big dick and chances are I'll be plenty happy lol...
I've had a LOT of sex in nontraditional places, even given head at the drive-thru lol, but I'm not sure I have anything new that hasn't been said. I think the one that sticks out in my mind the most is against the hood of a car out in the open in the driveway of a small apartment building one...