In the ATM lobby of a bank, after hours. The bank was closed, but there was sort of a foyer where the ATM was, and the outer doors to the foyer weren’t locked, although the inner doors were. We were sure we’d be caught any second.
It was really great. 
In the middle of a garden at a friend’s house while I was housesitting.
In the bushes behind a friend’s house at a play party. Found out later that outside was the only place NOT to have sex.
Ummm…
In the high school drama room
In the wings of the high school auditorium during an assembly
In an alley on the way home from a gay club
In a darkened groping room
In the laundry room of an apartment building
In the rooftop pool of a downtown hotel
On my balcony
In the sauna of an upscale ealth club
In the sauna of the downtown Y
On a rooftop terrace
On a nude beach
It goes on and on. I’m going to Hell.
Whatever. :rolleyes:
:eek: Jesus H. Christ! To hell in a handbasket you’re going!
I did it on my roommate’s bed. Hehe. Oh, and on a ferris wheel too!
Sex? 
What is this thing called sex?
Uhm… in a hot tub with about 11 other people in it as well. (Hey we were all drunk and naked and enjoying ourselves)
In the veeeeery back of a bar on St Paddy’s day surrounded by a lot of other drunk people. One of which who had a camera that got turned on us stopping us cold before anything really happened. Luckily it wasn’t on… or so they said.
In the elevator of a gymnasium/auditorium at a local Baptist church during rehearsals for our high school play.
The VA State Capitol building on a HUGE mahogany conference table.
In the swimming pool of the Tides Hotel, in SoBe , Miami…damn, that was good! Unfotunately, my GF lost her bikini bottom, so I had to dive for it!
In the community swimming pool, after hours.
On a picnic table at a cabin in a state park.
Fairly run-of-the-mill, really. 
Lindy, you do know that most (all?) ATM’s have video cameras that record the goings on in their vicinity. It’s mainly to have a record in case of theft, etc., but I’m sure the security guys were thrilled with your little gift! It hasn’t turned up on the 'Net yet, has it?
In El Yunque rain forest in Puerto Rico. Or in a car in a hotel parking lot (the entire University of North Carolina baseball team walked by and got quite a show!)
While going through a McDonald’s drive-thru…we had to go to one far away from where we lived so no one there would recognize her. I was actually hoping someone would recognize me…
Yet, strangely enough, I doubt a thread called “Masturbation Places” would have the same je ne sais quoi…
Then again, knowing the SDMB, I bet there has been one…
Lets see, in the Gulf of Mexico with other people around, on the back side of a waterfall with a major road within a couple hundred feet of the road, in the car on a major street and a number of people walked by. Wanted to do it on a train but never got the chance.
Well, this was over 10 years ago, so it probably would have shown up if it were going to. However, we were on the floor, so the angle of the camera (which is usually up around chest level) probably didn’t allow anything to be recorded.
Still, I was young, stupid, and in love.
And gagging for it. 
Waiting in line for the ATM at a local bank on a busy intersection in the middle of the afternoon. The margin of victory was pretty slim and I’m not going to reveal any of the close runner-ups.
Enjoy,
Steven
Wash your hands, Norman.
See, there was this one time, at band camp…
also the roof of my girlfriend’s mom’s condo… and the pool…
All from at least 8 years back…
While sailing on Lake Erie.
Sailing on some river in Westport, CT.
In an elevator in a dorm at the University of Richmond.
In the Sarah P. Duke Gardens at Duke University.
The indoor hot tub of some hotel in Gettysburg, PA while people walked by.
On a hotel balcony overlooking Lake Seneca, NY.
The back seat of a car in a Buffalo, NY parking lot at lunch.
In my dorm room closet (it was a very big closet) in college.
On a couch in the basement of Baldwin Auditorium, Duke University, after breaking and entering through the tunnels.
On the 15th fairway of the Harbortown Links at Sea Pines, Hilton Head Island, SC.
At a DopeFest (OK, this is more recent).
I began laughing hysterically when I pre-read “mouth” into Ethilrist’s response of…
“also the roof of my girlfriend’s mom’s _______”.