A Loli's ENF Adventure/Sally/School/Tiffany, a girl who hates her/Sally makes a plan to get back at Tiffany/Swipe Tiffany's backpack while she is swinging and pee on it.
Tiffany was swinging with her friend Silvia, a tawny brunette who liked to play softball. Their happy gabbing hit a lull, and the pair started swinging as hard as they could, each trying to get higher than the other. Tiffany had to keep pushing her glasses up the bridge of her nose on the back-swing, and, although Silvia seemed to be winning their contest, Tiffany kept her knees together and didn't kick as hard as she probably could. Sally wondered if it was some kind of technique that Tiffany had heard about and was just doing it wrong.
Whatever Tiffany's problem was, Sally recognized an opportunity to get back at her. The two girls' bags were resting against the big metal legs of the swing set where they would not notice one being taken if she timed it right. The chances were especially good with the both of them distracted by their contest.
Sally, trying her best to look nonchalant, cut to the right and around a half dozen students, including a couple of her friends, who were playing on the jungle gym. The kids made a pointed display of ignoring her as she went by, which would have stung Sally more if it hadn't been helping her remain unnoticed. She worked her way into an open corner of the playground in Tiffany's blind spot. She bit her lower lip, looked both ways, and dashed to the swing set while Tiffany was beginning a forward decent and holding her glasses in place with a finger.
Breathlessly, Sally snatched Tiffany's bag in one hand and ran with it around the corner of the school building. A few voices had been raised behind her, although she could not tell what they had been saying or who they were directed toward. In any case, Sally knew that she wouldn't have much time. Luckily, not having panties on would make the prank a few seconds quicker.
She dropped the bag to the ground and zipped it open expecting to find Tiffany's lunch and maybe some pencils and erasers. She gasped, eyes going wide, as she saw, sitting on top of Tiffany's lunch box, a pair of pink-and-white striped panties. They were unfolded and wrinkled, like they had been worn today and were removed. Why would Tiffany take her own panties off at school?
The clinking of chains back in the playground caught Sally's ears. Someone had just dismounted the swings. There was no time to think. She had to choose between either completing her earlier plan or taking advantage of this new opportunity to protect her own modesty and still get a different kind of revenge.