I'm a 16year old girl, and this story happened to me yesterday. I haven't gotten over it yet. Well, I went swimming with my two friends and we were waiting at the top of a water slide. My "friends" decided to play a prank on me, so when I went down the slide, they grabbed my bikini top and bottom off! The bad thing was I hadn't noticed!
When I reached the bottom and stood out of the water everyone was staring at me, and I couldn't figure out why. After about thirty seconds, I looked down to see that I was completely nude! I wrapped one arm over my boobs and the other hand over my crotch, and ran to the car.
It was on the other side of the park, so everyone there saw my exposed body.