Katie has to clean up the whole classroom by herself

Harper rose her hand and spoke:

"Maybe she could clean the whole classroom by herself" Harper said.

"That's an great idea, Miss Thompson." Said Mr. Thorn.

"By myself?" Katie asked, nervously.

"Yes, miss Irenis, by yourself. Now go sit down"

Katie nodded and walked back to her seat, her buttocks tight and her anus struggling to stay closed.

Katie thought it wasn't a bad punishment. It could have been something worse.

But then she noticed Harper opening a small box of paints. One of those that they sell in stores, cheap and with a bad brush.

Harper began to open all the paint containers and gave Katie a mischievous look, before moving her arm, knocking the box with the open containers to the floor.

"Oops" Harper feigned innocence "I didn't know they were open"

"You don't need to worry, Miss Thompson. Miss Irenis will clean it up afterwards."

Harper gave Katie a look of triumph and malice before returning to her drawing.