Accidentally exposing my wife:
As I mentioned in the first post my wife was usually the only topless female at the beach. A few men (and women!) obviously enjoyed the sight of her naked tits but overall most people didn't really care.
One day my wife wore a bikini bottom that was tied together on the sides. She tied it together using only a single knot.
Next to our sunbeds was another couple in their 30s, the guy was subtle but always positioned himself in a way that he could see my wifes tits.
My wife and I were sitting next to each other on our sunbed facing towards the other couple. I was accidently sitting on one of her bikini bottom strings, so when she stood up the knot came loose and her bottoms came off. So she was standing completely naked, 2 meters in front of the other couple with the guy staring right at her (while pretending to read a book
)
My wife turned around and bent down to grab her bikini bottoms from the ground. This way the lucky guy could also catch a good look of her ass and pussy from behind while bending down.
When she put her bikini bottoms back on she used the same single knot as before, knowing very well it could come off again easily.