Sandry's blouse has split

Robyn looked at Sandry's back, then traced a finger up the bare skin.

"You've got a rip from here... to here."

"Oh, cripes!" Sandry gasped. That was pretty much the whole back, except the hem, collar and bra strap. "What am I going to do?"

"Try to keep your back to the wall, as well as your waist below a desk." Robyn advised.

"I can't keep going to classes like this!"

"You don't have much choice, you know what lesson is next."