She feels her shorts starting to slip!

(chapter originally by Misayaka at writing.com)

Fuuka had never been much for gym. It was something of a miracle if the girl ever attended at all. More often than not she had managed to talk her way out of it, or worse case scenario, sit quietly by the sidelines. Little wonder she wasn't accustomed to wearing the loose-fitting clothes.

Or leaning up to write on a chalkboard while wearing them.

The students might not have noticed the sensation that Fuuka felt, but she realized it immediately. A downcast glance accompanied by the faint sensation of a draft along her bared waistline, and she saw the garment inching downward from her lower body. Fuuka had to do something before someone saw, and FAST.

Fuuka acted fast, and-