Mindy steals Isabel's shorts/panties when she adjusts her foot.

(this chapter originally by "shyexposure")

As everyone else closes their eyes, following the instructor's directions, there is one girl to whom this does not apply. For the instructor herself wanted this particular girl to continue with what she was doing and was hoping more would actually happen to brighten her day. It was already quite pleasing from what she saw of Isabel, with the young girl naked from her belly to her toes, and was actually looking forward to what the tormentor in her class would do.

"Alright everyone, now lift one leg up, then the other" she said

As the class followed this instruction, Isabel had ****, as mortified as she was, and could only hope she wouldn't be getting in trouble for how she was dressed currently. If she was ever discovered for being this bare, she was sure she would never live it down for the rest of her life.

Of course, this same instruction gave Mindy the boon she needed to actually tease Isabel further and humiliate her more. Just as Isabel raised one leg to follow the instructor, Mindy reached out and grasped the discarded shorts and panties on the ground and waited. She held her breath as Isabel's one leg descended, then let it out in relief, for Isabel's foot had settled outside her clothing, then grinned and yanked both garments away when the other foot lifted. Smiling back at the instructor, Mindy beamed when she was given a thumbs up, then quickly tossed Isabel's clothes in a hidden spot before placing herself back into position.

Isabel was now effectively without clothing at all to cover her bare nakedness, and when she opened her eyes and saw this fact, her worries skyrocketed. Where were her bottoms?! She needed those to get out of the gym and get home! Looking around frantically, she couldn't see them at all. This was terrible!

As she kept looking around...