nipple clamps.

Harriet just smirked at ginny as she pulled out a pair of nipple clamps. the clamps were attached together by a thin string. she attached them to her nipples before pulling on the string. she pulls it to the front of the desk before using the sticking charm to make it remain. this caused Ginny to have to lean forward to avoid pulling too hard on her nipples.

"Those will remain on for the remainder of the session," said Harriet. "She then placed her hands on Ginny's cheek. "Now do you understand the importance of obedience. If you do as you are supposed to then you will not be punished."

"Yes mistress," said Ginny.

"Good," said Harriet. she then turned to walk to the front of the room. as she did her fingers pulled on the string on the clamps. this caused Ginny to let out a soft whine.

"Now that we have covered obedience it is time to move on to the next lesson," said Harriet. she then waved her wand and the chalk moved on the board forming a new word.