Her chair collapses

Sandry sank her plump rear gratefully onto the wooden chair.

CREAK...CRACK!

She yelped in surprise as the chair broke under her, sending the chubby naked girl down to the floor, where she sat stunned among the broken pieces. The class let out renewed laughter, along with shouted comments about her backside being too heavy for it.

Sandry's face burned red, humiliated, as she sat nude in the middle of the floor.