Many years ago I used to help out at a range the rented all sorts of weapons. Mostly select fire... you know, come and shoot X number of rounds out of the machine gun, etc. (The place would seasonally get busy with people from Philly and NYC, and a friend owned it.)
So this couple walks in, I take one look at the lady (who was, shall we say, quite built), and warned her that her bikini top was really not appropriate for the type of firearms she'd be using that day.
She told me to get lost.
Ok.
So I stood back and instructed the line "officer" to let her shoot, after I reiterated that under the enclosed roof hot brass could/would be bouncing all over the place.
....and I stood back and waited for that top to come right off. I'm possitive they were not natural, but it was a great sight none the less, when she pulled it up and off.