Lose the panties

As Jenny continues her run, you spot the water weighing her underwear down even more and decide it's time to strike again.

A downward motion of your hand and the under shorts slip, all the way down to her ankles. The momentum of her run, combined with her underwear now at her ankles causes her to slip, and then trip.

Within seconds Jenny finds herself laying flat on her face, her completely naked arse on full display to the entire mall, and even worse, only half of her underwear is still around her ankles, the other half having torn away several feet away.