Steph joins in

Yasmin tries to focus on the work that Miss Sullivan is setting, very distracted by the knowledge that if anyone looked at this end of the room they may notice just how much she is displaying right now.

The thought is enough to turn her gaze towards her bare pussy and that's when she notices something between her feet. A red thong.

With a gasp she turns to look at Steph, who has apparently slipped off her thong, and lifted up her own skirt, copying Yasmin, although with her legs further apart than Yasmin and offering a far larger view.

Sensing that her friend was about to say something Steph presses her finger to her lips, trying to silence Yasmin, before turning to look at Miss Sullivan once more.