When I was trying to retrieve the hidden camera I had set up in the women's changing room at the pool, I was found by a gal who had just come back from a fight with her boyfriend! The gal, excited with anger at her boyfriend, got on top of me, and just when I thought it was dangerous, her tiny triangle stimulated my crotch and I got an erection! Then, the gal found it amusing and started rubbing her crotch against me...and I came hard when she penetrated me!