Homeroom chores.

The school was renovating and the hall they were currently in was being reallocated to a different grade after the break.

As a result the students had been spending most of the class period carrying varies supplies up and down stair cases rotating in who was making runs and who was sorting and helping set up. As Alex was the last to arrive nearly halfway through the lesson block she was immediately tasked with carrying heavy boxes of books up and down everyone else had been too lazy to carry.

This actually suited Alex perfectly fine. She was in excellent shape and was barely winded as she bounced up and down the 2 flights of stairs

Her exposed near-end was quickly noticed by almost everyone who happened to be behind her in line for any of the multiple trips she took over the next few minutes. Her front was scarcely more covered on the way down as the cheerleader had such a bouncy gate the skirt was consistently swirling and bouncing along with her.

Alex was just beginning to notice all of the extra attention when it happened during one of the last trips of the period...