They reach the restroom

You follow behind Steph and Yasmin as they make their way to the rest room and quickly duck inside. As soon as they're in with the door shut, Yasmin let's go of her skirt, her panties almost instantly falling to her ankles.

"I don't believe it, these were new a week ago!" Yasmin complains stepping out of the pants and picking them back up to observe them.

"Must be a duff batch or something." Steph replies, taking them from her hand. "I had a set like that once."

"But what am I gonna do? I can't just spend the rest of the day without any underwear on!"

Steph thinks for a moment, shaking her head. "Weren't you threatened with detention for skipping class last week? You'll be in real trouble if you don't go today."

The two girls stare at each other for a moment and you wonder if maybe you could offer a solution.