As you entered school for the day, you felt a sudden, sharp tug on the hem of your skirt. Before you could react, a hand darted beneath the fabric, grasping your panties tightly. You let out a startled yelp as your assailant yanked upwards, the delicate material straining against the force. With a sickening snap, your underwear gave way, the tattered remains fluttering to the floor.

Whirling around, your eyes widened in shock as you saw Ava standing behind you, a wicked grin spreading across her face. The older girl dangled your destroyed panties from her finger, her laughter ringing out mockingly.

"Oh, oops!" Ava giggled, her tone dripping with sarcasm. "I hope you brought an extra pair of underwear, otherwise you won't be wearing any today!"