Hell, I have had a lot of sex... I could list the ones I have listed in other threads, but the sex we had in our van in back of the restaurant I used to manage was exciting. Right at the end we discovered we where being watched. Find of excited and freaked out about that.
A couple cum to mind, on a dock in a public park after dark, on the desk of an ex-gf's bosses office in a restaurant during the dinner rush, in a closet at a party that was in full swing right outside the door, and more.