Amy will try anything once

Amy certainly never expected to be asked to wear bondage for art. She hesitated. The class and the instructor seemed keen to have her wear these strange things. It would be an entirely new experience, and she was committed to try anything once.

"Yes," she said after a moment's hesitation. "Same time tomorrow?"

The next day Amy came in again and took of her clothes, revealing her bouncy tits and ass. She saw a red ballgag and some pink fuzzy handcuffs in the middle of the room. After a little fiddling, she put in the ballgag herself. The male instructor came up and offered to help with the handcuffs. Amy couldn't speak with the ballgag in, so she nodded. The instructor cuffed her behind her back and looped the cuffs through some sort of a link in the floor, restraining her to one spot.

The class felt like it was taking a long time. Amy couldn't shift herself. Her nose started to itch and she couldn't scratch.

An hour in, her classmate Stacey came up.

"I have a great idea," Stacey was saying. Amy's eyes widened. Stacey was holding a pair of clamps on a short chain. Amy had never seen such as thing before, but she was beginning to worry. Still, she found herself unable to move as Stacey clamped first one nipple and then the other.

Time passed even slower. Amy's nipples ached agonizing as they swelled in the clamps. She forgot all about her nose itch as the clamped nipples occupied her entire attention.

At the end of class, the other students filed out while Amy stayed naked, handcuffed, gagged, and clamped in the middle of the room. The instructor came up to her empty-handed. "I can't seem to find the handcuff keys. I'm going to have to go get the janitor."

With that, he left without ungagging or unclamping Amy. He absent-mindedly switched off the light. She was left naked and clamped in the dark.